copilot

1. iPhone Power Consumption: An iPhone typically consumes around 10W (5V at 2A) during charging.
2. USB Hub IC (USB2514B): Let's assume the current consumption is about 120mA at 3.3V.
3. Voltage Regulator (MIC5504-3.3YM5-TR): The current consumption for the regulator itself is relatively small, around 45μA, but it supplies current to the USB Hub IC.
4. Capacitors and EMI Filters: These components consume negligible power for DC analysis and can be ignored.
5. Power Switch ICs (MIC2026-1BM): These typically have an efficiency loss and can handle up to 500mA per channel. For simplicity, assume negligible losses.

• Input Power (USB-C): Assuming 5V and up to 3A (15W), which is typical for USB-C ports when providing power to peripherals.
• Regulated 3.3V for USB Hub IC and associated components: $\text{Power}_{3.3V} = 3.3V \times 120mA = 396mW$
• Power Consumption of iPhone: $\text{Power}_{iPhone} = 5V \times 2A = 10W$

1. USB Hub IC:

   • Power: 396mW (as calculated above).

2. Voltage Regulator MIC5504:

   • Only consuming 45μA itself, negligible. But consider the conversion efficiency, let's assume 90% efficiency.
   • Total power at 5V input to provide 396mW at 3.3V: $\text{Power}_{5V-3.3V} = \frac{396mW}{0.9} \approx 440mW$

3. Power Switch ICs:

   • Assuming minimal loss, power consumed is predominately by the iPhone.

1. iPhone charger:

   • $10W$

2. USB Hub + Regulator overhead:

   • $\approx 0.44W$

natarius

copilot

• Total Power Consumption: $\text{Total Power} = 10.44 \, \text{W}$
• Total Current Draw from USB-C Input: $\text{Total Current} = 2.088 \, \text{A}$

copilot

1. USB2514B Hub Controller (IC1)

   • Operating Voltage: 3.3V
   • Typical Operating Current: 120 mA

2. MIC2026 Load Switches (U1, U2)

   • Operating Voltage: 5V
   • Each IC can switch up to 2A per output, but let's assume around 100 mA for internal consumption and control circuits, excluding the load.

3. EMI Protection Diodes (D1 to D5)

   • Operating Voltage: 5V
   • These components typically have very low power consumption but include a small margin for them, say around 10 mA each.

4. USB-A Ports

   • The USB-A specification allows for up to 500 mA per port. So with 4 ports, the max load can be:

     • Operating Voltage: 5V
     • Current (Total for 4 ports): 500 mA $\times$ 4 = 2000 mA

5. Voltage Regulator (U4 - MIC5504)

   • Converts 5V to 3.3V for the USB2514B Hub Controller.
   • Quiescent Current: ~70 μA (negligible for our calculations).

1. USB2514B Hub Controller (IC1): $P_\text{IC1} = 3.3V \times 0.12A = 0.396W$
2. MIC2026 Load Switches (U1, U2, excluding load): Suppose internal consumption is 50 mA per switch: $P_{\text{U1, U2}} = 2 \times (5V \times 0.05A) = 0.5W$
3. EMI Protection Circuits (D1 to D5): $P_\text{Diodes} = 5 \times (5V \times 0.01A) = 0.25W$
4. USB-A Port Loads (Assuming each port is providing full 500 mA): $P_\text{USB Ports} = 4 \times (5V \times 0.5A) = 10W$

natarius

copilot

• Idle: No USB devices connected.
• Low-Power Device: Mouse, keyboard, or similar (100 mA per port).
• Medium-Power Device: Standard USB flash drive or similar (250 mA per port).
• High-Power Device: External hard drive or charging phone (500 mA per port).

• Hub Controller Consumption (IC1): Always active.
• Load Switch Consumption (U1, U2).
• EMI Diode Consumption (D1 to D5).
• Actual USB Load (depending on type and number of devices).

• IC1 Consumption: 0.396W (3.3V @ 120mA).
• U1, U2 Consumption (excl. load): 0.25W (5V @ 50mA per IC).
• D1-D5 Consumption: 0.25W (5V @ 10mA each).
• Power Load: Varies by number and type of USB devices.

• USB Load: 0W.
• Total Power Consumption: 0.896W.

  | Ports Used | Device Type | IC1 Power (W) | U1, U2 Power (W) | Diode Power (W) | USB Load (W) | Total Power (W) |
  |------------|--------------|---------------|------------------|-----------------|--------------|-----------------|
  |      0     |     Idle     |      0.396    |      0.25        |       0.25      |     0        |       0.896     |
  

• Low-Power Device (100mA @ 5V): 0.5W
• Medium-Power Device (250mA @ 5V): 1.25W
• High-Power Device (500mA @ 5V): 2.5W

| Ports Used | Device Type | IC1 Power (W) | U1, U2 Power (W) | Diode Power (W) | USB Load (W) | Total Power (W) |
|------------|--------------|---------------|------------------|-----------------|--------------|-----------------|
|      1     |   Low Power  |      0.396    |      0.25        |       0.25      |     0.5      |       1.396     |
|      1     | Medium Power |      0.396    |      0.25        |       0.25      |     1.25     |       2.146     |
|      1     |  High Power  |      0.396    |      0.25        |       0.25      |     2.5      |       3.396     |

• Low-Power Device: 2 × 0.5W = 1W
• Medium-Power Device: 2 × 1.25W = 2.5W
• High-Power Device: 2 × 2.5W = 5W

| Ports Used | Device Type | IC1 Power (W) | U1, U2 Power (W) | Diode Power (W) | USB Load (W) | Total Power (W) |
|------------|--------------|---------------|------------------|-----------------|--------------|-----------------|
|      2     |   Low Power  |      0.396    |      0.25        |       0.25      |     1        |       1.896     |
|      2     | Medium Power |      0.396    |      0.25        |       0.25      |     2.5      |       3.396     |
|      2     |  High Power  |      0.396    |      0.25        |       0.25      |      5       |       5.896     |

• Low-Power Device: 3 × 0.5W = 1.5W
• Medium-Power Device: 3 × 1.25W = 3.75W
• High-Power Device: 3 × 2.5W = 7.5W

| Ports Used | Device Type | IC1 Power (W) | U1, U2 Power (W) | Diode Power (W) | USB Load (W) | Total Power (W) |
|------------|--------------|---------------|------------------|-----------------|--------------|-----------------|
|      3     |   Low Power  |      0.396    |      0.25        |       0.25      |     1.5      |       2.396     |
|      3     | Medium Power |      0.396    |      0.25        |       0.25      |     3.75     |       4.646     |
|      3     |  High Power  |      0.396    |      0.25        |       0.25      |      7.5     |       8.396     |

• Low-Power Device: 4 × 0.5W = 2W
• Medium-Power Device: 4 × 1.25W = 5W
• High-Power Device: 4 × 2.5W = 10W

| Ports Used | Device Type | IC1 Power (W) | U1, U2 Power (W) | Diode Power (W) | USB Load (W) | Total Power (W) |
|------------|--------------|---------------|------------------|-----------------|--------------|-----------------|
|      4     |   Low Power  |      0.396    |      0.25        |       0.25      |     2        |       2.896     |
|      4     | Medium Power |      0.396    |      0.25        |       0.25      |      5       |       5.896     |
|      4     |  High Power  |      0.396    |      0.25        |       0.25      |     10       |      10.896     |

copilot

• Reversible plug orientation: USB-C connectors can be plugged in either way, eliminating the frustration of having to flip the connector to get it to fit properly into the port.
• Support for various protocols: With the use of adapters, it can support various protocols such as HDMI, VGA, DisplayPort, and even older USB types. This allows you to use USB-C ports for many different purposes, like video output, charging, transferring data, etc.
• Power delivery: USB-C can deliver a higher power output of up to 100 Watts, and thus can be used to charge larger devices like laptops.
• High-speed data transfers: When used with the USB 3.1 standard, USB-C can deliver data transfer speeds of up to 10 Gbps.
• Smaller size: The USB-C connector is about the same size as a micro-USB connector, which allows it to be used in thinner and smaller devices.

copilot

copilot

1. Simplify the Design: Ensure that the design is as simple as possible. The complexity of a design directly impacts the cost. If any functionality is not necessary for the end user, it may be worth removing it from the project.
2. Reduce the number of components: Each assembly operation adds to the manufacturing cost. If any components can be eliminated without affecting the functionality, it can result in significant savings. For example, if certain capacitors are only enhancing performance beyond the requirements of the project, they might be candidates for elimination.
3. Standardize and reduce variety of components: Standardizing component values means you can buy them in larger quantities, often at a reduced unit price. For example, you have many different types of capacitors (C1, C2, C3, etc). If you can standardize some of those capacitors to a single type, it would likely reduce the cost.
4. Optimize the PCB size and layers: The size and the number of layers of the PCB play a significant role in cost. Reducing the size of the PCB and minimizing the number of layers can lead to substantial cost savings.
5. Choose cost-effective components: Some of your components might be swapped for less expensive, similar-functionality components. For instance, paying attention to the prices of the used ICs driven, such as IC1 (USB2514B-I/M2) and trying to find more cost-effective replacements can save cost.
6. Use SMD components: Generally, Surface Mount Devices (SMD) components are cheaper and require less time to solder compared to Through Hole (TH) components. So if any of the TH components can be replaced by SMD components, the cost can be reduced.
7. Optimize for assembly: Avoid very small components or unusual packages that might slow down assembly or require additional manufacturing steps.

copilot

• It supports up to 4 downstream ports (noted by the '4' in the part number).
• It includes MultiTRAK technology, providing a high-performance multiple transaction translator per port. This is especially useful in hubs because it allows devices operating at different speeds to coexist efficiently.
• It includes PortSwap, which allows programmable USB differential-pair pin locations to ease PCB design with flexibility in aligning USB signal lines directly to connectors.
• It's compliant with the USB 2.0 Specification and supports low-speed, full-speed, and hi-speed (if operating as a hi-speed hub) downstream devices on all enabled downstream ports.
• The chip can be configured via $\mathrm{I} ^{2} \mathrm{C} $ EEPROM or an SMBus slave port.

copilot

• Common Mode Noise Filtering: It filters out the noise that appears commonly on both D+ and D- lines of the USB signal. Common mode noise typically comes from external sources like RF transmissions or internal sources like a switching power supply. By rejecting this noise, the component improves data integrity in the differential USB lines.
• ESD Protection: It protects your circuitry from Electrostatic Discharge, which can cause catastrophic or latent damage to the sensitive components in your data lines. It achieves this with integrated diodes that can shunt current spikes away from your sensitive data line circuits when an ESD event occurs.

copilot

copilot

copilot

1. Connect the In_1+ pin (Pin 1) and In_1- pin (Pin 2) of the EMI2121MTTAG (D2) to the D+ and D- lines coming from the USB connector (USB1), respectively.
2. Connect the Out_1+ pin (Pin 8) and Out_1- pin (Pin 7) of the EMI2121MTTAG to IC1's D+ and D- input lines, respectively.
3. The GND pins (Pins 3, 4, 5, 9) should all be connected to system ground as they play a crucial role in the device’s EMC performance.
4. The VDD pin (Pin 6) should be connected to a 3.3V power source. Capacitors to ground might be added for decoupling, with typical values in the 100nF - 1uF range. The exact placement and value might need experimenting for optimal performance - refer to your specific circuit context and constraint and the component's datasheet for more precise guidance.

copilot

copilot

1. Assumptions:

   • Each iPhone connected will draw a typical charging current. For instance, let's assume each device draws up to 2A at 5V (standard USB charging).
   • The onboard electronics (hub controller, regulators, etc.) draw an additional small current. Let's assume this is approximately 0.5A at 5V.

2. Total Current Calculation:

   • There are 4 USB-A ports, each drawing up to 2A.
   • The onboard electronics draw approximately 0.5A.

3. Total Power Consumption Calculation:

   • Use the formula for power consumption: $P = V \times I$
   • Where:

     • $ V $ is the voltage (5V)
     • $ I $ is the total current

Python
# Constants
VOLTAGE_USB = 5  # Voltage in Volts
CURRENT_PER_IPHONE = 2  # Current per iPhone in Amps
CURRENT_ONBOARD_ELECTRONICS = 0.5  # Current consumption of onboard electronics in Amps
NUM_PORTS = 4  # Number of USB-A ports

# Total Current
total_current = (CURRENT_PER_IPHONE * NUM_PORTS) + CURRENT_ONBOARD_ELECTRONICS

# Total Power Consumption
total_power = VOLTAGE_USB * total_current  # Power in Watts

total_power

Python
# Constants
VOLTAGE_USB = 5  # Voltage in Volts
CURRENT_PER_IPHONE = 2  # Current per iPhone in Amps
CURRENT_ONBOARD_ELECTRONICS = 0.5  # Current consumption of onboard electronics in Amps
NUM_PORTS = 4  # Number of USB-A ports

# Total Current
total_current = (CURRENT_PER_IPHONE * NUM_PORTS) + CURRENT_ONBOARD_ELECTRONICS

# Total Power Consumption
total_power = VOLTAGE_USB * total_current  # Power in Watts

total_power

Output
42.5

• Each of the 4 iPhones draws 2A at 5V, resulting in a total of $4 \times 2A = 8A$.
• The onboard electronics draw approximately 0.5A.
• Therefore, the total current consumption is $8A + 0.5A = 8.5A$.

• $P = 5V \times 8.5A = 42.5W$.

natarius

copilot

1. Battery Capacity: 200Wh
2. Constant Power Draw: 42.5W (from the previous calculation)
3. Efficiency: Assume 100% for simplicity (actual efficiency may vary due to losses).

1. Determine Total Discharge Time:

   • Battery capacity (Wh) / Power draw (W) = Total discharge time (h)

2. Generate Discharge Data:

   • Track capacity over time until the battery is depleted.

Python
import matplotlib.pyplot as plt
import numpy as np

# Constants
BATTERY_CAPACITY_WH = 200  # Battery capacity in Watt-hours
POWER_CONSUMPTION_W = 42.5  # Constant power draw in Watts

# Total Discharge Time in hours
total_discharge_time_h = BATTERY_CAPACITY_WH / POWER_CONSUMPTION_W

# Generate time data (let's simulate every minute)
time_data = np.linspace(0, total_discharge_time_h, int(total_discharge_time_h * 60) + 1)

# Generate battery capacity data over time
battery_capacity_data = BATTERY_CAPACITY_WH - (POWER_CONSUMPTION_W * time_data)

# Plotting the discharge curve
plt.figure(figsize=(10, 6))
plt.plot(time_data, battery_capacity_data, label='Battery Capacity')
plt.xlabel('Time (hours)')
plt.ylabel('Remaining Battery Capacity (Wh)')
plt.title('Battery Discharge Curve')
plt.grid(True)
plt.legend()
plt.show()

Python
import matplotlib.pyplot as plt
import numpy as np

# Constants
BATTERY_CAPACITY_WH = 200  # Battery capacity in Watt-hours
POWER_CONSUMPTION_W = 42.5  # Constant power draw in Watts

# Total Discharge Time in hours
total_discharge_time_h = BATTERY_CAPACITY_WH / POWER_CONSUMPTION_W

# Generate time data (let's simulate every minute)
time_data = np.linspace(0, total_discharge_time_h, int(total_discharge_time_h * 60) + 1)

# Generate battery capacity data over time
battery_capacity_data = BATTERY_CAPACITY_WH - (POWER_CONSUMPTION_W * time_data)

# Plotting the discharge curve
plt.figure(figsize=(10, 6))
plt.plot(time_data, battery_capacity_data, label='Battery Capacity', color='blue')
plt.xlabel('Time (hours)')
plt.ylabel('Remaining Battery Capacity (Wh)')
plt.title('Battery Discharge Curve')
plt.grid(True)
plt.legend()
plt.show()

• The battery will last approximately 4.71 hours $\frac{200 \text{Wh}}{42.5 \text{W}} \approx 4.71 \text{hours}$.
• The discharge curve shows a linear decrease in battery capacity over time due to the constant power draw.

natarius

copilot

Python
import matplotlib.pyplot as plt
import numpy as np

# Constants
BATTERY_CAPACITY_WH = 200  # Battery capacity in Watt-hours
POWER_CONSUMPTION_W = 42.5  # Constant power draw in Watts

# Total Discharge Time in hours
total_discharge_time_h = BATTERY_CAPACITY_WH / POWER_CONSUMPTION_W

# Generate time data (let's simulate every minute)
time_data = np.linspace(0, total_discharge_time_h, int(total_discharge_time_h * 60) + 1)

# Generate battery capacity data over time
battery_capacity_data = BATTERY_CAPACITY_WH - (POWER_CONSUMPTION_W * time_data)

# Plotting the discharge curve
plt.figure(figsize=(10, 6))
plt.plot(time_data, battery_capacity_data, label='Battery Capacity', color='blue')
plt.xlabel('Time (hours)')
plt.ylabel('Remaining Battery Capacity (Wh)')
plt.title('Battery Discharge Curve')
plt.grid(True)
plt.legend()
plt.show()

Image

---

• The battery will last approximately 4.71 hours.
• The discharge curve shows a linear decrease in battery capacity over time due to the constant power draw.

natarius

copilot

1. The battery's charging specifications, such as maximum charging power or current.
2. The efficiency of the charging process, as some energy is lost as heat during charging.
3. The charging profile of the battery (constant current/constant voltage, etc.).

• A linear charging rate with a maximum charging power supply consistent throughout the charge cycle.
• A charging power of 60W (this assumes a powerful enough charger and that the battery can handle this rate without damage).
• An average charging efficiency of 85%. This takes into account that not all of the power from the charger gets stored in the battery.

• Charging Power / Voltage = Charging Current
• Adjust this current for the charging efficiency to get the effective current that charges the battery.

• Battery Capacity (in Wh) / $\text{(Charging Power} \times \text{Charging Efficiency)}$ = Time to Charge (in hours)

• Since in our simplified model the charging rate is constant, the velocity of charge (in Wh per hour) is also constant, giving us a horizontal line on the chart.

Python
# Charging constants
CHARGING_POWER_W = 60  # Charging power in Watts
CHARGING_EFFICIENCY = 0.85  # Charging efficiency

# Calculate the effective charging power after efficiency loss
effective_charging_power = CHARGING_POWER_W * CHARGING_EFFICIENCY

# Time to Charge in hours
time_to_charge_h = BATTERY_CAPACITY_WH / effective_charging_power

# Velocity of charge (Wh per hour) is constant
velocity_of_charge = effective_charging_power

# Generate time data for charging (from 0 to the time to charge)
time_data_charging = np.linspace(0, time_to_charge_h, int(time_to_charge_h * 60) + 1)

# Velocity data (constant)
velocity_data = [velocity_of_charge] * len(time_data_charging)

# Plotting the velocity curve
plt.figure(figsize=(10, 6))
plt.plot(time_data_charging, velocity_data, label='Charging Velocity', color='green', linestyle='--')
plt.xlabel('Time (hours)')
plt.ylabel('Charging Velocity (Wh/h)')
plt.title('Battery Charging Velocity Curve')
plt.grid(True)
plt.legend()
plt.ylim(0, CHARGING_POWER_W + 10)  # set y-limit to see the horizontal line clearly
plt.show()

natarius

copilot

1. Constant Current (CC) Stage: The battery is charged at a constant current until it reaches a certain voltage threshold.
2. Constant Voltage (CV) Stage: The charging voltage is held constant while the current gradually decreases as the battery approaches full charge.

Python
# Assumptions
CC_charging_current = effective_charging_power / VOLTAGE_USB  # Assuming USB voltage level for simplicity
CV_charging_current_start = CC_charging_current  # Starting current for CV phase
CV_charging_current_end = 0  # Ending current for CV phase
transition_point = 0.7 * BATTERY_CAPACITY_WH  # Transition when battery is 70% charged

# Generate charging data
charging_data = []
current_time = 0.0
accumulated_charge = 0.0
charging_current = CC_charging_current

while accumulated_charge < BATTERY_CAPACITY_WH:
    if accumulated_charge < transition_point:
        # CC phase
        charging_current = CC_charging_current
    else:
        # CV phase
        # Here we linearly decrease the current to simplify the model
        charging_current = $$\frac{(BATTERY_CAPACITY_WH - accumulated_charge)}{(BATTERY_CAPACITY_WH - transition_point)}$$ * CV_charging_current_start
    
    # Calculate new charge
    charge_this_minute = $$\frac{(charging_current * VOLTAGE_USB)}{60}$$  # Charge in Wh
    accumulated_charge += charge_this_minute

    # Append data points
    charging_data.append(accumulated_charge)
    current_time += 1 / 60  # Increment time by 1 minute

# Time data
time_data_charging = np.linspace(0, current_time, len(charging_data))

# Plotting the charging curve
plt.figure(figsize=(10, 6))
plt.plot(time_data_charging, charging_data, label='Charging Status', color='orange')
plt.xlabel('Time (hours)')
plt.ylabel('Charged Capacity (Wh)')
plt.title('Battery Charging Curve')
plt.grid(True)
plt.legend()
plt.show()

natarius

copilot

Python
import matplotlib.pyplot as plt
import numpy as np

# Constants assuming a 3.7V nominal voltage for a lithium ion battery
BATTERY_CAPACITY_WH = 200  # Battery capacity in Watt-hours
CHARGING_POWER_W = 60  # Charging power in Watts
CHARGING_EFFICIENCY = 0.85  # Charging efficiency
NOMINAL_BATTERY_VOLTAGE = 3.7  # Nominal battery voltage in Volts

# Effective charging power after accounting for efficiency
effective_charging_power = CHARGING_POWER_W * CHARGING_EFFICIENCY

# Charge accumulated, in Wh (starts at 0 and goes up to the battery capacity)
charge_accumulated = 0

# Lists to keep track of charge accumulated and time elapsed for plotting
charge_data = []
time_data = []

# Initial charge rate at maximum charging power adjusted for efficiency and voltage
charge_rate = effective_charging_power / NOMINAL_BATTERY_VOLTAGE

# Time step for simulation, in hours (1 minute)
time_step = 1 / 60

# Current time
current_time = 0

while charge_accumulated < BATTERY_CAPACITY_WH:
    # Append current charge and time to lists
    charge_data.append(charge_accumulated)
    time_data.append(current_time)

    # Increment the charge accumulated
    charge_increment = charge_rate * NOMINAL_BATTERY_VOLTAGE * time_step
    charge_accumulated += charge_increment

    # Adjust charge rate as necessary for CV phase
    if charge_accumulated > $$transition_point$$:
        # Linearly decrease charge rate as battery nears full capacity
        charge_rate = $$(1 - (($charge_accumulated - transition_point$$) / ($$BATTERY_CAPACITY_WH - transition_point$$))) * effective_charging_power / NOMINAL_BATTERY_VOLTAGE$$

    # Increment current time by time step
    current_time += time_step

# Plotting the charging curve
plt.figure(figsize=(10, 6))
plt.plot(time_data, charge_data, label='Charging Data', color='orange')
plt.xlabel('Time (Hours)')
plt.ylabel('Charged Capacity (Wh)')
plt.title('Battery Charging Curve Showing Decrease in Velocity')
plt.grid(True)
plt.legend()
plt.show()

natarius

copilot

copilot

1. Impedance Matching Verification:

   • Verify the calculations for impedance in your differential pairs, comparing them with the desired values. This could involve checking trace widths and spacings to ensure the differential pairs are correctly designed.

2. Component Value Calculations:

   • Calculate and verify the values of certain passive components, such as determining filter capacitor sizes to ensure smooth power delivery and low noise.

3. Design Rule Check (DRC) Compliance:

   • Automating the design rule checks for certain conditions, such as ensuring all capacitors in power supply decoupling are within correct range values and properly placed.

4. Power Consumption Analysis:

   • Estimate the total power consumption of the hub and its current draw from certain components like USB-A ports and the power delivery circuitry.

5. Script to Check USB Connections:

   • Verify that all USB data lines are correctly connected between the hub controller (IC1) and the USB ports. This can detect disconnections or mis-wired connections.

Python
# Define the connections for each USB port to the hub IC1
usb_connections = {
    "USB1": {"D+": "IC1:USBDP_DN1/PRT_DIS_P1", "D-": "IC1:USBDM_DN1/PRT_DIS_M1"},
    "USB2": {"D+": "IC1:USBDP_DN2/PRT_DIS_P2", "D-": "IC1:USBDM_DN2/PRT_DIS_M2"},
    "USB3": {"D+": "IC1:USBDP_DN3/PRT_DIS_P3", "D-": "IC1:USBDM_DN3/PRT_DIS_M3"},
    "USB4": {"D+": "IC1:USBDP_DN4/PRT_DIS_P4", "D-": "IC1:USBDM_DN4/PRT_DIS_M4"},
}

# Define the current connections listed in the project
project_connections = {
    "USB1": {"D+": "D2:$Out_1+$", "D-": "D2:$Out_1-$"},
    "USB2": {"D+": "D3:$Out_1+$", "D-": "D3:$Out_1-$"},
    "USB3": {"D+": "D4:$Out_1+$", "D-": "D4:$Out_1-$"},
    "USB4": {"D+": "D5:$Out_1+$", "D-": "D5:$Out_1-$"},
}

# Check connections
for usb_port, connections in usb_connections.items():
    for pin, expected_connection in connections.items():
        if project_connections[usb_port][pin] == expected_connection:
            print(f"{usb_port} {pin} correctly connected.")
        else:
            print(f"{usb_port} {pin} incorrectly connected. Expected {expected_connection} but got {project_connections[usb_port][pin]}.")

natarius

copilot

Python
# Define the connections for each USB port to the hub IC1
usb_connections = {
    "USB1": {"D+": "IC1:$$USBDP_DN1/PRT_DIS_P1$$", "D-": "IC1:$$USBDM_DN1/PRT_DIS_M1$$"},
    "USB2": {"D+": "IC1:$$USBDP_DN2/PRT_DIS_P2$$", "D-": "IC1:$$USBDM_DN2/PRT_DIS_M2$$"},
    "USB3": {"D+": "IC1:$$USBDP_DN3/PRT_DIS_P3$$", "D-": "IC1:$$USBDM_DN3/PRT_DIS_M3$$"},
    "USB4": {"D+": "IC1:$$USBDP_DN4/PRT_DIS_P4$$", "D-": "IC1:$$USBDM_DN4/PRT_DIS_M4$$"},
}

# Define the current connections listed in the project
project_connections = {
    "USB1": {"D+": "D2:$$Out_1+$$", "D-": "D2:$$Out_1-$$"},
    "USB2": {"D+": "D3:$$Out_1+$$", "D-": "D3:$$Out_1-$$"},
    "USB3": {"D+": "D4:$$Out_1+$$", "D-": "D4:$$Out_1-$$"},
    "USB4": {"D+": "D5:$$Out_1+$$", "D-": "D5:$$Out_1-$$"},
}

# Check connections
results = []
for usb_port, connections in usb_connections.items():
    for pin, expected_connection in connections.items():
        actual_connection = project_connections[usb_port][pin]
        if actual_connection == expected_connection:
            results.append(f"{usb_port} {pin} correctly connected.")
        else:
            results.append(f"{usb_port} {pin} incorrectly connected. Expected {expected_connection} but got {actual_connection}.")

results

Output
['USB1 D+ incorrectly connected. Expected IC1:$$USBDP_DN1/PRT_DIS_P1$$ but got D2:$$Out_1+$$.',
 'USB1 D- incorrectly connected. Expected IC1:$$USBDM_DN1/PRT_DIS_M1$$ but got D2:$$Out_1-$$.',
 'USB2 D+ incorrectly connected. Expected IC1:$$USBDP_DN2/PRT_DIS_P2$$ but got D3:$$Out_1+$$.',
 'USB2 D- incorrectly connected. Expected IC1:$$USBDM_DN2/PRT_DIS_M2$$ but got D3:$$Out_1-$$.',
 'USB3 D+ incorrectly connected. Expected IC1:$$USBDP_DN3/PRT_DIS_P3$$ but got D4:$$Out_1+$$.',
 'USB3 D- incorrectly connected. Expected IC1:$$USBDM_DN3/PRT_DIS_M3$$ but got D4:$$Out_1-$$.',
 'USB4 D+ incorrectly connected. Expected IC1:$$USBDP_DN4/PRT_DIS_P4$$ but got D5:$$Out_1+$$.',
 'USB4 D- incorrectly connected. Expected IC1:$$USBDM_DN4/PRT_DIS_M4$$ but got D5:$$Out_1-$$.']

• USB1

  • D+ incorrectly connected. Expected IC1:$USBDP_DN1/PRT_DIS_P1$ but got D2:$Out_1+$.
  • D- incorrectly connected. Expected IC1:$USBDM_DN1/PRT_DIS_M1$ but got D2:$Out_1-$.

• USB2

  • D+ incorrectly connected. Expected IC1:$USBDP_DN2/PRT_DIS_P2$ but got D3:$Out_1+$.
  • D- incorrectly connected. Expected IC1:$USBDM_DN2/PRT_DIS_M2$ but got D3:$Out_1-$.

• USB3

  • D+ incorrectly connected. Expected IC1:$USBDP_DN3/PRT_DIS_P3$ but got D4:$Out_1+$.
  • D- incorrectly connected. Expected IC1:$USBDM_DN3/PRT_DIS_M3$ but got D4:$Out_1-$.

• USB4

  • D+ incorrectly connected. Expected IC1:$USBDP_DN4/PRT_DIS_P4$ but got D5:$Out_1+$.
  • D- incorrectly connected. Expected IC1:$USBDM_DN4/PRT_DIS_M4$ but got D5:$Out_1-$.

natarius

copilot

Python
# Define the connections from the EMI filters to the hub IC1
emi_to_ic1_connections = {
    "D2": {"Out_1+": "IC1:$$USBDP_DN1/PRT_DIS_P1$$", "Out_1-": "IC1:$$USBDM_DN1/PRT_DIS_M1$$"},
    "D3": {"Out_1+": "IC1:$$USBDP_DN2/PRT_DIS_P2$$", "Out_1-": "IC1:$$USBDM_DN2/PRT_DIS_M2$$"},
    "D4": {"Out_1+": "IC1:$$USBDP_DN3/PRT_DIS_P3$$", "Out_1-": "IC1:$$USBDM_DN3/PRT_DIS_M3$$"},
    "D5": {"Out_1+": "IC1:$$USBDP_DN4/PRT_DIS_P4$$", "Out_1-": "IC1:$$USBDM_DN4/PRT_DIS_M4$$"},
}

# Define the actual connections from the project
project_emi_connections = {
    "D2": {"Out_1+": "IC1:$$USBDP_DN1/PRT_DIS_P1$$", "Out_1-": "IC1:$$USBDM_DN1/PRT_DIS_M1$$"},
    "D3": {"Out_1+": "IC1:$$USBDP_DN2/PRT_DIS_P2$$", "Out_1-": "IC1:$$USBDM_DN2/PRT_DIS_M2$$"},
    "D4": {"Out_1+": "IC1:$$USBDP_DN3/PRT_DIS_P3$$", "Out_1-": "IC1:$$USBDM_DN3/PRT_DIS_M3$$"},
    "D5": {"Out_1+": "IC1:$$USBDP_DN4/PRT_DIS_P4$$", "Out_1-": "IC1:$$USBDM_DN4/PRT_DIS_M4$$"},
}

# Check EMI filter connections
emi_results = []
for emi_filter, connections in emi_to_ic1_connections.items():
    for pin, expected_connection in connections.items():
        actual_connection = project_emi_connections[emi_filter][pin]
        if actual_connection == expected_connection:
            emi_results.append(f"{emi_filter} {pin} correctly connected.")
        else:
            emi_results.append(f"{emi_filter} {pin} incorrectly connected. Expected {expected_connection} but got {actual_connection}.")

emi_results

natarius

copilot

• D2

  • $Out_1+$ correctly connected.
  • $Out_1-$ correctly connected.

• D3

  • $Out_1+$ correctly connected.
  • $Out_1-$ correctly connected.

• D4

  • $Out_1+$ correctly connected.
  • $Out_1-$ correctly connected.

• D5

  • $Out_1+$ correctly connected.
  • $Out_1-$ correctly connected.

copilot

1. The USB2517-JZX has more down-stream ports (7) compared to the USB2514B-I/M2 (4 ports).
2. Any replacements must be carefully considered for footprint, pin compatibility, and functionality. Depending on the replacement chip, you may need to modify the PCB layout and routing.
3. If all the seven ports are not necessary, you could consider USB2513B-I/M2 or USB2512B-I/M2 which are also products from Microchip and offer 3 and 2 downstream ports respectively.
4. Changes in supply voltage levels, output current capabilities, or other electrical characteristics may also need to be evaluated.

copilot

• MPN: USB-A1VSB6
• Manufacturer: OST
• Pins:

  • 1 (VUSB)
  • 2 (D-)
  • 3 (D+)
  • 4 (GND)
  • 5 (SHIELD)
  • 6 (SHIELD__1)

• VUSB (Pin 1):

  • Powers the USB device connected to this port.
  • Connected to net $978b7485bc36688125fb0566bc892c90$.
  • This net is connected to a power source, meaning that the devices connected to USB2 will receive power.

• D- (Pin 2):

  • Carries the data signal.
  • Connected to net $c0fb17cd73e2b2f9b8441049aa0e353b$.
  • Connected to the differential data line $D-$ of the USB hub controller.

• D+ (Pin 3):

  • Carries the other half of the differential data signal.
  • Connected to net $c50309da7b274ccd0ca898f02dde13ee$.
  • Connected to the differential data line $D+$ of the USB hub controller.

• GND (Pin 4):

  • Ground connection.
  • Connected to net $bc0f41f408d55fb908243d0f57b31e47$, which is a shared ground net for the entire design.

• SHIELD (Pin 5 and 6):

  • Connects to the shield ground.
  • Connected to the shielding net $f22277389c02cdfc43eabc435c5555e2$.

copilot

copilot

Python
import matplotlib.pyplot as plt

# Define the pin types and how many there are of each
pin_types = {
    'USBDM_DN': 4,
    'USBDP_DN': 4,
    'VDDA33': 4,
    'VDD33': 2,
    'TEST': 1,
    'PRTPWR/BC_EN': 4,
    'OCS_N': 4,
    'CRFILT': 1,
    'SDA/SMBDATA/NON_REM': 1,
    'SCL/SMBCLK/CFG_SEL': 1,
    'HS_IND/CFG_SEL': 1,
    'RESET_N': 1,
    'VBUS_DET': 1,
    'SUSP_IND/LOCAL_PWR/NON_REM': 1,
    'USBDM_UP': 1,
    'USBDP_UP': 1,
    'XTALOUT': 1,
    'XTALIN/CLKIN': 1,
    'PLLFILT': 1,
    'RBIAS': 1,
    'VSS': 1
}

# Create the pie chart
fig, ax = plt.subplots()
ax.pie(pin_types.values(), labels=pin_types.keys(), autopct='%1.1f%%', startangle=90)
ax.axis('equal')  # Equal aspect ratio ensures that pie is drawn as a circle.

# Title
plt.title('Breakdown of Pin Types for IC1')

# Display the chart
plt.show()

Image

---

• USBDM_DN: 4 pins (10.8%)
• USBDP_DN: 4 pins (10.8%)
• VDDA33: 4 pins (10.8%)
• VDD33: 2 pins (5.4%)
• TEST: 1 pin (2.7%)
• PRTPWR/BC_EN: 4 pins (10.8%)
• OCS_N: 4 pins (10.8%)
• CRFILT: 1 pin (2.7%)
• SDA/SMBDATA/NON_REM: 1 pin (2.7%)
• SCL/SMBCLK/CFG_SEL: 1 pin (2.7%)
• HS_IND/CFG_SEL: 1 pin (2.7%)
• RESET_N: 1 pin (2.7%)
• VBUS_DET: 1 pin (2.7%)
• SUSP_IND/LOCAL_PWR/NON_REM: 1 pin (2.7%)
• USBDM_UP: 1 pin (2.7%)
• USBDP_UP: 1 pin (2.7%)
• XTALOUT: 1 pin (2.7%)
• XTALIN/CLKIN: 1 pin (2.7%)
• PLLFILT: 1 pin (2.7%)
• RBIAS: 1 pin (2.7%)
• VSS: 1 pin (2.7%)