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PCM2706PJTR

Public Made by Adom

by adom

Texas Instruments ADCs/DACs - Special Purpose, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Datasheet

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Contents

README

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PCM2706PJTR

Texas Instruments · ADCs/DACs - Special Purpose · TQFP-32(7x7)

PCM2706PJTR from Texas Instruments, in a TQFP-32(7x7). 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 PGND power_in Analog ground for the DAC, oscillator, and PLL.
2 VCCP power_in Analog power supply for the DAC, oscillator, and PLL; connect a decoupling capacitor to GND and supply 3.3 V for self-powered applications.
3 HOST input Host detection during self-powered operation (connect to VBUS), and max power select during bus-powered operation (LOW: 100 mA, HIGH: 500 mA); LV-TTL level, 5-V tolerant.
4 FUNC3 input HID key state input for play/pause, active HIGH when FSEL = 1, or I2S data input when FSEL = 0; LV-TTL level with internal pulldown.
5 FUNC0 bidirectional HID key state input for next track, active HIGH when FSEL = 1, or I2S LR clock output when FSEL = 0; LV-TTL level with internal pulldown.
6 HID0/MS input HID key state input for mute, active HIGH (PCM2706); MS input on PCM2707; LV-TTL level with internal pulldown.
7 HID1/MC input HID key state input for volume up, active HIGH (PCM2706); MC input on PCM2707; LV-TTL level with internal pulldown.
8 HID2/MD input HID key state input for volume down, active HIGH (PCM2706); MD input on PCM2707; LV-TTL level with internal pulldown.
9 FSEL input Function select: LOW selects I2S DATA output, HIGH selects S/PDIF output; LV-TTL level.
10 TEST input Test pin that must be set HIGH; LV-TTL level.
11 SSPND output Suspend flag, active LOW (LOW: suspend, HIGH: operational).
12 XTI input Crystal oscillator input; LV-TTL level.
13 XTO output Crystal oscillator output.
14 CK output Clock output for external ROM (PCM2706); must be left open on PCM2707.
15 DT bidirectional Data input/output for external ROM (PCM2706); must be left open with a pullup resistor on PCM2707; LV-TTL level.
16 PSEL input Power source select: LOW for self-power, HIGH for bus-power; LV-TTL level.
17 DOUT output S/PDIF output or I2S data output (selected by FSEL).
18 FUNC2 bidirectional HID key state input for stop, active HIGH when FSEL = 1, or I2S system clock output when FSEL = 0; LV-TTL level with internal pulldown.
19 FUNC1 bidirectional HID key state input for previous track, active HIGH when FSEL = 1, or I2S bit clock output when FSEL = 0; LV-TTL level with internal pulldown.
20 DGND power_in Digital ground.
21 VDD power_in Digital power supply; connect a decoupling capacitor to GND and supply 3.3 V for self-powered applications.
22 D- bidirectional USB differential input/output minus (full-speed USB 1.1).
23 D+ bidirectional USB differential input/output plus (full-speed USB 1.1).
24 VBUS power_in Connect to USB power (VBUS) for bus-powered operation, or to VDD for self-powered operation.
25 ZGND power_in Ground for the internal regulator.
26 AGNDL power_in Analog ground for the L-channel headphone amplifier.
27 VCCL power_in Analog power supply for the L-channel headphone amplifier; connect a decoupling capacitor to GND and supply 3.3 V for self-powered applications.
28 VOUTL output DAC analog output for the L channel.
29 VOUTR output DAC analog output for the R channel.
30 VCCR power_in Analog power supply for the R-channel headphone amplifier; connect a decoupling capacitor to GND and supply 3.3 V for self-powered applications.
31 AGNDR power_in Analog ground for the R-channel headphone amplifier.
32 VCOM passive Common voltage for the DAC (VCCP/2); connect a decoupling capacitor to PGND.

Key specifications

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

CAD (KiCad official)

  • Symbol: PCM2706PJTR
  • Footprint: Package_QFP:TQFP-32_7x7mm_P0.8mm
  • 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: pcm2706pjtr-etched.step / pcm2706pjtr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm2706pjtr.step / pcm2706pjtr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (45 pp, sha256 b79526de65e54bcf, 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