Part Metadata Review and Update

Thought for 1 min 53 sec

I reviewed the part definition for MA2304PNSXUMA1 against the official Infineon PDF already linked in the project, so no Datasheet property update was needed.

Overall result

MPN: MA2304PNSXUMA1
Manufacturer: Infineon
Description in project: Amplifier IC 2-Channel (Stereo) Class D PG-VQFN-40
Datasheet source used: Official Infineon datasheet
Project package property: VQFN
Datasheet package naming: QFN pad-down 40-pin, 6.0 mm x 6.0 mm, 0.5 mm pitch, exposed pad present
Symbol/footprint structure found in project: 41 terminals / 41 pads total
- Interprets as 40 perimeter pins + 1 exposed pad
- Footprint identifier found: QFN50P600X600X90-41N-D.kicad_mod

Key specs Datasheet-verified key specs

Table

Item	Value
Function	Multilevel switching Class-D audio amplifier
Channels	2-channel
Main supply PVDD	10 V to 20 V
Logic supply VDD	1.62 V to 3.64 V
I/O supply VDD_IO	1.62 V to 3.64 V
Audio interface	I2S / TDM
Control interface	I2C
Package	6 x 6 mm QFN, 40-pin, exposed pad
Typical rated output	2 x 24 W BTL at 18 V, 4 ohm, 10% THD
PBTL mode	1 x 65 W at 18 V, 2 ohm, 10% THD

Cross-check summary What matches

Table

Area	Status	Notes
Manufacturer	Good	Project says Infineon
MPN	Good	Project MPN matches datasheet orderable part
Basic function	Good	Stereo/Class-D description is consistent
Pin names 1-40	Good	The symbol terminal names and numbering align with the datasheet pin list
Exposed pad presence	Good	Project appears to include the exposed pad in the footprint
Footprint pin count	Good	41 total pads is consistent with 40 pins + EPAD

Items to flag

Table

Area	Severity	Finding
Package naming	Low	Project says VQFN / PG-VQFN-40 style naming, while datasheet text uses QFN pad-down 40-pin. Likely equivalent family naming, but not an exact text match.
Exposed pad naming/numbering	Medium	Datasheet treats the center pad as EPAD = VSS rather than a numbered signal pin. In the project it is modeled as pin 41 / VSS. This is workable, but it is not the same naming convention as the datasheet.
Pin type metadata	Medium	All terminals are currently Pin Type: Unspecified. The datasheet clearly implies power, ground, input, output, bidirectional/open-drain categories.
Pin descriptions	Medium	The project terminals currently show pin numbers, but I did not find datasheet-derived per-pin description properties stored on the symbol terminals.
Package property specificity	Low	`Package or Case Code = VQFN` is generic. The footprint identifier is much more specific than the project property.

Symbol and footprint assessment Symbol

The symbol terminal names and numbers appear to match the datasheet well for the main 40 pins.
The main issue is metadata completeness, not pin-name correctness:
- pin types are unspecified
- terminal descriptions are missing or incomplete

Footprint

The footprint appears structurally correct for this device class:
- 0.5 mm pitch
- 6 x 6 mm body class
- 41-pad implementation
The footprint identifier QFN50P600X600X90-41N-D is consistent with the datasheet package dimensions.
I did not find an obvious footprint-count mismatch.

Recommended cleanup

Change the package/project wording to match the datasheet more closely:
- from generic VQFN
- to something like QFN pad-down 40-pin, 6 x 6 mm, EPAD
Rename or annotate the exposed pad so it is clearly understood as:
- EPAD / VSS
- rather than only pin 41
Fill in terminal metadata from the datasheet:
- pin type
- pin description
- power/ground classification where applicable

Bottom line

No hard pinout mismatch found
No datasheet URL update needed
Footprint and symbol are broadly consistent with the datasheet
The main issues are metadata quality and the EPAD being represented as numbered pin 41 instead of an explicitly named exposed pad

If you want, I can next update the part project metadata and terminal properties to make the symbol/package info fully datasheet-aligned.

Fix pin metadata

Add pin descriptions

Review footprint dimensions

Run ERC after cleanup

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