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PCM2706PJTR
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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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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pcm2706pjtr.step/pcm2706pjtr.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).
# 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](https://www.ti.com/cn/lit/gpn/pcm2706) (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](docs/pcm2706pjtr-datasheet.pdf)