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DSD1791DBR

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Texas Instruments ADCs/DACs - Special Purpose, SSOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DSD1791DBR

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

DSD1791DBR 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 PLRCK input Left/right clock (fS) input for PCM mode; Schmitt-trigger input, 5-V tolerant.
2 PBCK input Bit clock input for PCM mode; Schmitt-trigger input, 5-V tolerant.
3 PDATA input Serial audio data input for PCM mode; Schmitt-trigger input, 5-V tolerant.
4 DBCK input Bit clock input for DSD mode; Schmitt-trigger input, 5-V tolerant.
5 SCK input System clock input (128, 192, 256, 384, 512, or 768 fS); Schmitt-trigger input, 5-V tolerant.
6 RST input Reset input; Schmitt-trigger input, 5-V tolerant.
7 VDD power_in Digital power supply, 3.3 V nominal (3.0 V to 3.6 V).
8 DGND power_in Digital ground.
9 AGNDF power_in Analog ground for DACFF.
10 VCCR power_in Analog power supply for R-channel I/V, 5 V nominal (4.5 V to 5.5 V).
11 AGNDR power_in Analog ground for R-channel I/V.
12 VOUTR- output R-channel analog voltage output (negative); differential full scale is 3.2 Vp-p across VOUTR+ and VOUTR-.
13 VOUTR+ output R-channel analog voltage output (positive); differential full scale is 3.2 Vp-p across VOUTR+ and VOUTR-.
14 VCOM passive Internal bias decoupling pin.
15 VCCC power_in Analog power supply for internal bias and current DAC, 5 V nominal (4.5 V to 5.5 V).
16 AGNDC power_in Analog ground for internal bias and current DAC.
17 VOUTL+ output L-channel analog voltage output (positive); differential full scale is 3.2 Vp-p across VOUTL+ and VOUTL-.
18 VOUTL- output L-channel analog voltage output (negative); differential full scale is 3.2 Vp-p across VOUTL+ and VOUTL-.
19 AGNDL power_in Analog ground for L-channel I/V.
20 VCCL power_in Analog power supply for L-channel I/V, 5 V nominal (4.5 V to 5.5 V).
21 VCCF power_in Analog power supply for DACFF, 5 V nominal (4.5 V to 5.5 V).
22 ZEROR output Zero flag output for R-channel.
23 ZEROL output Zero flag output for L-channel.
24 DSDR input R-channel audio data input for DSD mode; Schmitt-trigger input, 5-V tolerant.
25 DSDL input L-channel audio data input for DSD mode; Schmitt-trigger input, 5-V tolerant.
26 MDI bidirectional Mode control data input/output for the SPI control port; Schmitt-trigger input with CMOS output, 5-V tolerant input.
27 MC input Mode control clock input; Schmitt-trigger input, 5-V tolerant.
28 MS bidirectional Mode control chip select input/output; Schmitt-trigger input with CMOS output, 5-V tolerant input.

Key specifications

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

CAD (KiCad official)

  • Symbol: DSD1791DBR
  • Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
  • 3D model: SSOP-28 (KiCad packages3D, STEP)
  • 3D model files: dsd1791dbr-etched.step / dsd1791dbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dsd1791dbr.step / dsd1791dbr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (57 pp, sha256 8d7f67fecf6bfb0c, 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