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PCM2706CPJTR

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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Contents

README

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PCM2706CPJTR

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

PCM2706CPJTR 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 DAC, oscillator, and PLL.
2 VCCP power_in Analog power supply for DAC, oscillator, and PLL; 3.3 V for self-powered applications with decoupling capacitor required.
3 HOST input Host detection during self-powered operation (connect to VBUS) or maximum power select during bus-powered operation (low: 100 mA, high: 500 mA); 5-V tolerant LV-TTL.
4 FUNC3 input HID play/pause key state input when FSEL = 1 (active high) or I2S data input when FSEL = 0; LV-TTL with internal pulldown.
5 FUNC0 bidirectional HID next-track key state input when FSEL = 1 (active high) or I2S LR clock output when FSEL = 0; LV-TTL with internal pulldown.
6 HID0/MS input Mute key state input for PCM2706C (active high) or MS input for PCM2707C; LV-TTL with internal pulldown.
7 HID1/MC input Volume-up key state input for PCM2706C (active high) or MC input for PCM2707C; LV-TTL with internal pulldown.
8 HID2/MD input Volume-down key state input for PCM2706C (active high) or MD input for PCM2707C; LV-TTL with internal pulldown.
9 FSEL input Function select (low: I2S data output, high: S/PDIF output); LV-TTL level.
10 TEST input Test pin; must be set high for proper operation; LV-TTL level.
11 SSPND output Suspend flag indicating USB suspended state (active low: low when suspended, high when operational).
12 XTI input Crystal oscillator input for 12 MHz ±500 ppm external clock or internal resonator; LV-TTL level.
13 XTO output Crystal oscillator output for external crystal connection; must be left open if external clock is supplied to XTI.
14 CK output Clock output for external ROM I2C interface (PCM2706C); must be left open for PCM2707C.
15 DT bidirectional Data input/output for external ROM I2C interface (PCM2706C); must be left open with pullup resistor for PCM2707C; LV-TTL level.
16 PSEL input Power source select (low: self-powered from 3.3 V, high: bus-powered from 5 V USB); LV-TTL level.
17 DOUT output S/PDIF output when FSEL = 1 or I2S data output when FSEL = 0.
18 FUNC2 bidirectional HID stop key state input when FSEL = 1 (active high) or I2S system clock output when FSEL = 0; LV-TTL with internal pulldown.
19 FUNC1 bidirectional HID previous-track key state input when FSEL = 1 (active high) or I2S bit clock output when FSEL = 0; LV-TTL with internal pulldown.
20 DGND power_in Digital ground.
21 VDD power_in Digital power supply; 3.3 V for self-powered applications with decoupling capacitor required.
22 D- bidirectional USB D- differential signal line (negative); LV-TTL level.
23 D+ bidirectional USB D+ differential signal line (positive) with 1.5 kΩ ±5% pullup resistor to 3.3 V required; LV-TTL level.
24 VBUS power_in Connect to USB bus power (5 V) for bus-powered operation or connect to VDD for self-powered operation.
25 ZGND power_in Ground connection for internal voltage regulator.
26 AGNDL power_in Analog ground for left-channel headphone amplifier.
27 VCCL power_in Analog power supply for left-channel headphone amplifier; 3.3 V for self-powered applications with decoupling capacitor required.
28 VOUTL output DAC analog output for left-channel audio with output impedance 26 kΩ ±20% in powered-off state.
29 VOUTR output DAC analog output for right-channel audio with output impedance 26 kΩ ±20% in powered-off state.
30 VCCR power_in Analog power supply for right-channel headphone amplifier; 3.3 V for self-powered applications with decoupling capacitor required.
31 AGNDR power_in Analog ground for right-channel headphone amplifier.
32 VCOM output Common voltage for DAC output biasing (nominal VCCP/2); connect 100 μF decoupling capacitor to PGND.

Key specifications

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

CAD (KiCad official)

  • Symbol: PCM2706CPJTR
  • Footprint: Package_QFP:TQFP-32_7x7mm_P0.8mm
  • 3D model: TQFP-32(7x7) (KiCad packages3D, STEP)
  • 3D model files: pcm2706cpjtr-etched.step / pcm2706cpjtr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcm2706cpjtr.step / pcm2706cpjtr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (53 pp, sha256 36480dfb52585877, retrieved 2026-09-26, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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