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PCM2912APJT

Public Made by Adom

by adom

Texas Instruments Audio Interface ICs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

markdown

PCM2912APJT

Texas Instruments · Audio Interface ICs · TQFP-32(7x7)

PCM2912APJT from Texas Instruments, in a TQFP-32(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BGND power_in Reference for internal regulator, analog ground.
2 VBUS power_in Connect to USB power (VBUS).
3 D- bidirectional USB differential input/output minus (LV-TTL level).
4 D+ bidirectional USB differential input/output plus (LV-TTL level).
5 VDD power_in Digital power supply; connect decoupling capacitor to corresponding ground.
6 DGND power_in Digital ground.
7 XTO output Crystal oscillator output.
8 XTI input Crystal oscillator input (3.3-V CMOS level).
9 FL passive External filter pin of L-channel (optional).
10 FR passive External filter pin of R-channel (optional).
11 VCOM1 passive Common voltage for ADC, DAC, and analog front-end (VCCA/2); decoupling capacitor must be connected to AGND.
12 VCOM2 passive Common voltage for headphone (VCCA/2); decoupling capacitor must be connected to AGND.
13 AGND power_in Analog ground.
14 NC unconnected Not connected.
15 VCCA power_in Analog power supply; connect decoupling capacitor to corresponding ground.
16 VIN power_in ADC microphone input.
17 MBIAS output Microphone bias output (0.75 VCCA).
18 VOUTL output Headphone output for L-channel.
19 VCCL power_in Analog power supply for headphone amplifier of L-channel; connect decoupling capacitor to corresponding ground.
20 HGND power_in Analog ground for headphone amplifier.
21 VCCR power_in Analog power supply for headphone amplifier of R-channel; connect decoupling capacitor to corresponding ground.
22 VOUTR output Headphone output for R-channel.
23 MAMP input Microphone preamplifier gain control (LOW: Preamplifier off, HIGH: Preamplifier on = +20 dB); 3.3-V CMOS level.
24 POWER input Power consumption declaration select pin (LOW: 100 mA, HIGH: 500 mA); 3.3-V CMOS level.
25 PGND power_in Analog ground for microphone bias, microphone amplifier, and PGA.
26 VCCP power_in Analog power supply for PLL; connect decoupling capacitor to corresponding ground.
27 TEST1 input Test pin; must be set to HIGH (3.3-V CMOS level).
28 TEST0 input Test pin; must be set to LOW (3.3-V CMOS level).
29 SSPND output Suspend flag (LOW: Suspend, HIGH: Operational state).
30 MMUTE input Microphone mute control, active HIGH (LOW: Mute off, HIGH: Mute on); 3.3-V CMOS level with internal pulldown resistor.
31 REC output Status output for record (LOW: Record, FLASH: Mute on record, HIGH: Stop); 5-V tolerant, open-drain.
32 PLAY output Status output for playback (LOW: Playback, FLASH: Mute on playback, HIGH: Stop); 5-V tolerant, open-drain.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TQFP-32(7x7)
Category Interface
Pins 32

CAD (KiCad official)

  • Symbol: PCM2912APJT
  • Footprint: Package_QFP:TQFP-32_7x7mm_P0.8mm
  • 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: pcm2912apjt-etched.step / pcm2912apjt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm2912apjt.step / pcm2912apjt.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 61d048c255190975, retrieved 2026-10-01, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF