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Contents

README

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PCM2912APJTR

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

PCM2912APJTR from Texas Instruments, in a TQFP-32(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 BGND power_in Reference ground for internal band-gap circuit.
2 VBUS power_in USB power supply input, 4.35 to 5.25 V.
3 D- bidirectional USB D- differential signal, LV-TTL level.
4 D+ bidirectional USB D+ differential signal, LV-TTL level.
5 VDD power_out Digital power supply output, 3.3 V typical from internal regulator.
6 DGND power_in Digital ground.
7 XTO output Crystal oscillator output.
8 XTI input Crystal oscillator input, 6 MHz ±0.5% with 3.3-V CMOS level.
9 FL passive External low-pass filter pin for L-channel output, optional.
10 FR passive External low-pass filter pin for R-channel output, optional.
11 VCOM1 power_out Common mode voltage (VCCA/2) for ADC and DAC, requires capacitor decoupling to AGND.
12 VCOM2 power_out Common mode voltage (VCCA/2) for headphone amplifier, requires capacitor decoupling to AGND.
13 AGND power_in Analog ground.
14 NC unconnected Not connected.
15 VCCA power_out Analog power supply output, 3.3 V typical from internal regulator.
16 VIN power_in Microphone analog input, 0.43 to VCCA VPP centered at 0.5 VCCA.
17 MBIAS output Microphone bias output, 0.75 VCCA with 2 mA source current.
18 VOUTL output Left headphone output, 0.6 VCCA VPP at >10 kΩ or 0.55 VCCA VPP at 32 Ω load.
19 VCCL power_out Headphone L-channel power supply, 3.3 V typical from internal regulator.
20 HGND power_in Headphone amplifier ground.
21 VCCR power_out Headphone R-channel power supply, 3.3 V typical from internal regulator.
22 VOUTR output Right headphone output, 0.6 VCCA VPP at >10 kΩ or 0.55 VCCA VPP at 32 Ω load.
23 MAMP input Microphone amplifier gain select, 3.3-V CMOS (LOW = off, HIGH = +20 dB).
24 POWER input Power consumption declaration, 3.3-V CMOS (LOW = 100 mA, HIGH = 500 mA).
25 PGND power_in Microphone amplifier and PGA ground.
26 VCCP power_out PLL power supply, 3.3 V typical from internal regulator.
27 TEST1 input Test pin, 3.3-V CMOS level, must be set to HIGH.
28 TEST0 input Test pin, 3.3-V CMOS level, must be set to LOW.
29 SSPND output USB suspend status, 5-V tolerant open-drain (LOW = suspend, HIGH = operational).
30 MMUTE input Microphone mute control, 3.3-V CMOS with internal pulldown, active HIGH.
31 REC output Record status, 5-V tolerant open-drain (LOW = recording, FLASH = muted, HIGH = stopped).
32 PLAY output Playback status, 5-V tolerant open-drain (LOW = playing, FLASH = muted, HIGH = stopped).

Key specifications

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

CAD (KiCad official)

  • Symbol: PCM2912APJTR
  • Footprint: Package_QFP:TQFP-32_7x7mm_P0.8mm
  • 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: pcm2912apjtr-etched.step / pcm2912apjtr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm2912apjtr.step / pcm2912apjtr.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 2026-09-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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