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PCM1774RGPR

Public Made by Adom

by adom

Texas Instruments ADCs/DACs - Special Purpose, QFN-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PCM1774RGPR

Texas Instruments · ADCs/DACs - Special Purpose · QFN-20(4x4)

PCM1774RGPR from Texas Instruments, in a QFN-20(4x4). 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 MODE input Two- or three-wire interface selection: LOW selects SPI, HIGH selects I2C.
2 MS/ADR input Mode control select for the three-wire/two-wire interface.
3 MD/SDA bidirectional Mode control data for the three-wire/two-wire interface (SDA in I2C mode).
4 MC/SCL input Mode control clock for the three-wire/two-wire interface (SCL in I2C mode).
5 DIN input Serial audio data input.
6 VIO power_in Power supply for digital I/O, 1.71 V to 3.6 V.
7 VDD power_in Power supply for digital core, 1.71 V to 3.6 V.
8 DGND power_in Digital ground.
9 SCKI input System clock input; supports common-audio clock frequencies from 12 MHz to 39.36 MHz (256 fS/384 fS).
10 BCK bidirectional Serial bit clock.
11 LRCK bidirectional Left and right channel clock.
12 PGND power_in Ground for the speaker power amplifier.
13 VPA power_in Power supply for the power amplifier, 2.4 V to 3.6 V.
14 HPOR/LOR output Headphone/line output for the L-channel, as labeled in Table 1.
15 HPOL/LOL output Headphone/line output for the R-channel, as labeled in Table 1.
16 VCOM passive Analog common voltage.
17 AGND power_in Ground for analog circuitry.
18 VCC power_in Analog power supply, 2.4 V to 3.6 V.
19 AIN1R input Analog input 1 for the R-channel.
20 AIN1L input Analog input 1 for the L-channel.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package QFN-20(4x4)
Category Data Acquisition
Pins 21

CAD (KiCad official)

  • Symbol: PCM1774RGPR
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: QFN-20(4x4) (KiCad packages3D, STEP)
  • 3D model files: pcm1774rgpr-etched.step / pcm1774rgpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm1774rgpr.step / pcm1774rgpr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (50 pp, sha256 89cd3f8c7b01041e, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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