Part Information Review and Update
2:45
Reviewing project details.
Planning schematic and layout.
Reviewing the bill of materials.
Analyzing the PCB layout.
Analyzing the schematic.
Looking for "Exact manufacturer part number, manufacturer name, package, pin count, description, supply voltage range, operating temperature range, interface type, and key optical specifications for TCS3448." in TCS3448-14-Channel-multi-spectral-sensor.pdf
Looking for "Complete pin table for TCS3448 with pin numbers, pin names, and pin descriptions/functions." in TCS3448-14-Channel-multi-spectral-sensor.pdf
Looking for "Package information for TCS3448 including package name, body/package code, dimensions, and whether the package has 8 pins." in TCS3448-14-Channel-multi-spectral-sensor.pdf
Looking for "Summarize the TCS3448 datasheet first-page description and the key implementation notes relevant to creating a library part symbol and footprint." in TCS3448-14-Channel-multi-spectral-sensor.pdf
Looking for "Recommended PCB pad layout dimensions and package drawing details for the TCS3448 OLGA-8 package, including pad count, orientation, and pin 1 indication." in TCS3448-14-Channel-multi-spectral-sensor.pdf
Looking for "Top-view pin assignment diagram details for TCS3448: list pin numbers around the package in physical order if available." in TCS3448-14-Channel-multi-spectral-sensor.pdf
Addressing part number mismatches.
Evaluating land pattern data.
Creating a summary table.
I reviewed the part against the official datasheet already linked in the project. Since a
Summary
Datasheet URL property is already present and points to the ams OSRAM PDF, no web search or property update was needed. I used the datasheet as the source of truth for exact pin/name/package checks, which is the right audit method for part projectsPart info audit
| Field | In project | In datasheet | Status |
|---|---|---|---|
| Manufacturer Part Number | TCS3448 | Base device name is TCS3448; orderable package codes listed as TCS34488 and TCS34488M | - Minor ambiguity |
| Manufacturer Name | OSRAM | ams OSRAM / OSRAM branding | - Acceptable |
| Part Type | Sensors | 14-channel multi-spectral light sensor | - OK |
| Package or Case Code | TO | OLGA-8 | - Mismatch |
| Datasheet URL | Present | Official PDF | - OK |
| Designator Prefix | IC | Not datasheet-driven, but U is the normal IC prefix convention | - Convention issue |
| Description | "14-Channel Multi-Spectral Color Sensor..." | 14-channel multi-spectral light sensor, 380 nm to 1000 nm, I2C 1.2 V/1.8 V, 3.1 mm x 2.0 mm x 1.0 mm package | - Mostly OK, could be tightened |
Key specs from datasheet
| Spec | Value |
|---|---|
| Device | TCS3448 14-channel multi-spectral light sensor |
| Spectral range | ~380 nm to 1000 nm |
| Visible channels | 11 VIS channels |
| Extra channels | NIR, clear, and integrated flicker detection |
| Supply voltage | 1.7 V to 1.98 V |
| Nominal supply | 1.8 V |
| I2C bus voltage | 1.2 V / 1.8 V |
| Operating temperature | -30 C to +85 C |
| Package | OLGA-8 |
| Package size | 3.1 mm x 2.0 mm x 1.0 mm |
The symbol has 8 terminals, which matches the datasheet’s 8-pin OLGA-8 package. Pin names and pin numbers all match.
Symbol pin mapping
| Project terminal | Datasheet pin | Datasheet function | Result |
|---|---|---|---|
| VDD | 1 | Positive supply voltage | - Match |
| SCL | 2 | I2C clock input | - Match |
| GND | 3 | Ground | - Match |
| LDR | 4 | LED current sink input | - Match |
| PGND | 5 | Power ground | - Match |
| GPIO | 6 | General-purpose digital I/O / VBUS select role | - Match |
| INT | 7 | Open-drain interrupt output, active low | - Match |
| SDA | 8 | I2C data I/O | - Match |
This is where most of the issues are.
Current mismatches
- All 8 terminals currently have
Pin Type = Unspecified. - No terminal appears to have a
Pin Descriptionproperty populated. - No
Section,Pin Group, orPin Orientationproperties are present. - For part projects, exact pin properties should be checked against the datasheet and not guessed
Recommended pin types
Recommended short pin descriptions
- The layout contains 8 pads, consistent with the OLGA-8 package.
- Pad naming aligns with the 8 symbol terminals.
- Exact land-pattern dimensions
- Pad sizes / spacing
- Package body outline accuracy
- Pin 1 marker fidelity relative to the datasheet’s recommended PCB pad layout
So, at a minimum:
- Pad count matches
- Package property does not match
- Detailed footprint geometry remains unverified from the current layout tool output alone
Package or Case Codeis TO, but datasheet says OLGA-8- All terminal
Pin Typeproperties are still Unspecified - Terminal
Pin Descriptionproperties appear to be missing
Manufacturer Part Numbercould be made more specific if you want an orderable MPN, e.g. TCS34488 or TCS34488MDesignator Prefixshould probably be U rather thanIC- Project description could be updated to better reflect the datasheet wording:
14-channel multi-spectral light sensor, 380 nm to 1000 nm, 1.7 V to 1.98 V supply, OLGA-8
If you want, I can make the obvious fixes next:
- set
Package or Case Codeto OLGA-8 - update all 8 terminal pin types
- add short pin descriptions
- optionally normalize the MPN and description
Fix pin metadata
Normalize part details
Verify footprint geometry
4 days
Ready.
Reviews
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TCS3448
The ams OSRAM TCS3448 is a highly versatile, multi-purpose spectral light sensor designed to sense the spectral components of ambient light in the visible range. This 14-channel sensor is optimized for applications requiring precise color sensing and ambient light classification, making it ideal for enhancing camera performance through improved color temperature (CCT), automatic white balance (AWB), and exposure time adjustments. The TCS3448 features individual channels covering approximately 380 nm to 1000 nm, including 11 channels centered in the visible spectrum, one near-infrared (NIR) channel, and a clear channel. Additionally, it integrates a flicker detection channel that can automatically flag ambient light flicker at 50/60 Hz and buffer data for calculating other flicker frequencies. The sensor's high-precision optical interference filters are directly deposited on photodiodes embedded in CMOS silicon, ensuring accurate spectral data. With a built-in aperture, programmable digital GPIO, and LED driver, the TCS3448 offers robust control and synchronization capabilities. The device is available in an ultra-low profile package, making it suitable for a wide range of applications, from industrial automation to mobile and wearable devices.
Features:
14-channel spectral sensing
Visible range coverage (380 nm to 1000 nm)
11 visible spectrum channels
Near-infrared (NIR) channel
Clear channel
Flicker detection up to 1 kHz
Integrated aperture for increased accuracy
High-precision optical interference filters
Programmable digital GPIO
LED driver for light source control
Serial I²C interface (1.2 V/1.8 V)
Ultra-low profile package (3.1 mm x 2 mm x 1 mm)
Field of view (FOV) ±40°
0.18 µ process technology
Compatible with AS7343 software
#CommonPartsLibrary #IntegratedCircuit #Sensor #Transducers
#Optical-Sensor
#Ambient-Light
#IR
#UV-Sensor
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