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PCM1870RHFR

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Texas Instruments ADCs/DACs - Special Purpose, VQFN-24(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PCM1870RHFR

Texas Instruments · ADCs/DACs - Special Purpose · VQFN-24(4x5)

PCM1870RHFR from Texas Instruments, in a VQFN-24(4x5). 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 VCOM passive Common voltage for analog, used as the ADC common-mode reference and recommended to have a 1 µF to 4.7 µF capacitor to AGND.
2 AIN2R input Analog input 2 for the R channel, a single-ended input with integrated anti-aliasing low-pass filter.
3 AIN2L input Analog input 2 for the L channel, a single-ended input with integrated anti-aliasing low-pass filter.
4 MODE input Two- or three-wire serial interface selection: LOW selects SPI and HIGH selects I2C.
5 MS/ADR input Mode control select for the 3-wire / 2-wire interface (sets the I2C address).
6 MD/SDA bidirectional Mode control data for the 3-wire interface or serial data for the 2-wire (I2C) interface.
7 MC/SCL input Mode control clock for the 3-wire interface or serial clock for the 2-wire (I2C) interface.
8 DOUT output Serial audio data output.
9 VIO power_in Power supply for digital I/O, 1.71 V to 3.6 V (typ 3.3 V).
10 VDD power_in Power supply for digital core, 1.71 V to 3.6 V (typ 3.3 V).
11 DGND power_in Ground for digital; should be connected directly to AGND under the part to keep digital noise out of the analog ground.
12 SCKI input System clock input (common audio clock, 256 fS/384 fS, and other listed rates).
13 BCK bidirectional Serial bit clock, an input in slave mode and an output in master mode.
14 LRCK bidirectional Left- and right-channel clock, an input in slave mode and an output in master mode.
15 TEST input Test pin that should be connected to ground.
16 AOR output Microphone amplifier output for the R channel.
17 PGINR input Analog input to the gain amplifier for the R channel.
18 AOL output Microphone amplifier output for the L channel.
19 PGINL input Analog input to the gain amplifier for the L channel.
20 AIN1R input Analog input 1 for the R channel, single-ended, or the R side of the monaural differential input pair with AIN1L.
21 AIN1L input Analog input 1 for the L channel, single-ended, or the L side of the monaural differential input pair with AIN1R.
22 MICB output Microphone bias source output.
23 VCC power_in Power supply for analog, 2.4 V to 3.6 V (typ 3.3 V).
24 AGND power_in Ground for analog.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-24(4x5)
Category Data Acquisition
Pins 25

CAD (KiCad official)

  • Symbol: PCM1870RHFR
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x5mm_P0.5mm_EP2.65x3.65mm
  • 3D model: VQFN-24(4x5) (KiCad packages3D, STEP)
  • 3D model files: pcm1870rhfr-etched.step / pcm1870rhfr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm1870rhfr.step / pcm1870rhfr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (53 pp, sha256 afc0c099c6b2bac3, 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