Pin Function Grouping and Datasheet Review

flux

Completed the CMX973Q5 datasheet review and updated all 33 terminals with datasheet-derived pin descriptions, standard pin types, and one non-overlapping functional group per pin. The datasheet URL was already set, and no pin-name, pin-number, or footprint pad-count mismatches were found.
Open items:
  • Exposed pad is 3.8 mm square, matching the datasheet maximum; confirm solder-paste aperture strategy with your assembler.
Suggested next steps:
  1. Standardize manufacturer naming to “CML Microsystems” if desired.
  2. Review symbol layout readability after the new functional groups.
  3. Add recommended RF/layout notes for the exposed RFGND pad and supply decoupling.
A

adrian95

  • Make the functional group more general.
  • Add a Section property to all pins, and apply the same value used in the Pin Group property to each pin's Section property.

flux

I’ll generalize the existing pin groups and mirror each pin’s final Pin Group value into its Section property.

flux

Updated all pins with more general functional groups and added a matching Section property to each pin.
Groups now used:
  • Analog
  • RF
  • Oscillator
  • Digital
  • Power
  • Ground
Verified that every pin has Section set to the same value as Pin Group.
Review and document
Create pin-group report
Run part review
Fix property warnings
Check footprint geometry
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Files

Pins

Symbol

Layout

3D View

Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
TXIP
1
Input
Analog
Analog
Left
3
TXQP
2
Input
Analog
Analog
Left
3
TXQN
3
Input
Analog
Analog
Left
3
RFOUT
4
Output
RF
RF
IFIN
5
Input
RF
RF
VCC
6
Power In
Power
Power
Top
1
RXIN
7
Output
Analog
Analog
Left
3
RXIP
8
Output
Analog
Analog
Left
3
RXQP
9
Output
Analog
Analog
Left
3
RXQN
10
Output
Analog
Analog
Left
3
TXLO
11
Input
Oscillator
Oscillator
Right
4
REFIN
12
Input
Oscillator
Oscillator
Right
4
DO
13
Output
Analog
Analog
Left
3
VCCSYNTH
14
Power In
Power
Power
Top
1
CDATA
15
Input
Digital
Digital
Right
2
VDD
16
Power In
Power
Power
Top
1
SCLK
17
Input
Digital
Digital
Right
2
RDATA
18
Tri-State
Digital
Digital
Right
2
OA2P
19
Input
Analog
Analog
Left
3
OA2N
20
Input
Analog
Analog
Left
3
OA2O
21
Output
Analog
Analog
Left
3
CSN
22
Input
Digital
Digital
Right
2
VSS
23
Ground
Ground
Ground
Bottom
11

CMX973Q5