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Contents

README

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PCM1804S1IDBRQ1

Texas Instruments · ADCs/DACs - Special Purpose · SSOP-28

PCM1804S1IDBRQ1 from Texas Instruments, in a SSOP-28. 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 VREFL power_out Left-channel voltage reference output, requires capacitors for decoupling to AGND
2 AGNDL power_in Analog ground for VREFL
3 VCOML power_in Left-channel analog common-mode voltage (2.5 V)
4 VINL+ input Left-channel analog input, positive pin
5 VINL- input Left-channel analog input, negative pin
6 FMT0 input Audio data format 0, Schmitt-trigger input with internal pulldown
7 FMT1 input Audio data format 1, Schmitt-trigger input with internal pulldown
8 S/M input Slave or master mode selection, Schmitt-trigger input with internal pulldown
9 OSR0 input Oversampling ratio 0, Schmitt-trigger input with internal pulldown
10 OSR1 input Oversampling ratio 1, Schmitt-trigger input with internal pulldown
11 OSR2 input Oversampling ratio 2, Schmitt-trigger input with internal pulldown
12 BYPAS input HPF bypass control, High: HPF disabled, Low: HPF enabled, Schmitt-trigger input
13 DGND power_in Digital ground
14 VDD power_in Digital power supply
15 DATA/DSDR output Left-channel and right-channel audio data output in PCM mode, right-channel audio data output in DSD mode
16 BCK/DSDL bidirectional Bit clock input/output in PCM mode, left-channel audio data output in DSD mode, Schmitt-trigger input
17 LRCK/DSDBCK bidirectional Sampling clock input/output in PCM and DSD modes, Schmitt-trigger input
18 SCKI input System clock input (128 fS, 256 fS, 384 fS, 512 fS, or 768 fS), Schmitt-trigger input 5-V tolerant
19 RST input Reset, power-down input, active-low, Schmitt-trigger input with internal pulldown
20 OVFR output Overflow signal of right-channel in PCM mode
21 OVFL output Overflow signal of left-channel in PCM mode
22 VCC power_in Analog power supply
23 AGND power_in Analog ground
24 VINR- input Right-channel analog input, negative pin
25 VINR+ input Right-channel analog input, positive pin
26 VCOMR power_in Right-channel analog common-mode voltage (2.5 V)
27 AGNDR power_in Analog ground for VREFR
28 VREFR power_out Right-channel voltage reference output, requires capacitors for decoupling to AGND

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-28
Category Data Acquisition
Pins 28

CAD (KiCad official)

  • Symbol: PCM1804S1IDBRQ1
  • Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
  • 3D model: SSOP-28 (KiCad packages3D, STEP)
  • 3D model files: pcm1804s1idbrq1-etched.step / pcm1804s1idbrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm1804s1idbrq1.step / pcm1804s1idbrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 c46d2d038a145fa0, 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