component
PCM2705CDBR
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SSOP-28. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPCM2705CDBR
Texas Instruments · ADCs/DACs - Special Purpose · SSOP-28
PCM2705CDBR from Texas Instruments, in a SSOP-28. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | XTO | output | 12 MHz crystal oscillator output. |
| 2 | CK | output | Must be left open for PCM2705C (clock output for external ROM not applicable). |
| 3 | DT | bidirectional | Must be left open with pull-up resistor for PCM2705C (data input/output for external ROM not applicable). |
| 4 | PSEL | input | Power mode select; low = self-powered, high = bus-powered; LV-TTL level. |
| 5 | DOUT | output | S/PDIF digital audio output. |
| 6 | DGND | power_in | Digital ground reference. |
| 7 | VDD | power_in | Digital power supply, 3.0-3.6 V for self-powered operation. |
| 8 | D- | bidirectional | USB differential input/output minus; LV-TTL level. |
| 9 | D+ | bidirectional | USB differential input/output plus; LV-TTL level; requires 1.5 kΩ pull-up resistor to 3.3 V. |
| 10 | VBUS | power_in | USB power input 4.35-5.25 V for bus-powered operation or connection to VDD for self-powered operation. |
| 11 | ZGND | power_in | Ground reference for internal voltage regulator. |
| 12 | AGNDL | power_in | Analog ground reference for left-channel headphone amplifier. |
| 13 | VCCL | power_in | Analog power supply input for left-channel headphone amplifier, 3.0-3.6 V; requires decoupling capacitor to GND. |
| 14 | VOUTL | output | DAC analog output for left-channel delivering 1.8 VPP into 10 kΩ load or 12 mW into 32 Ω headphone load. |
| 15 | VOUTR | output | DAC analog output for right-channel delivering 1.8 VPP into 10 kΩ load or 12 mW into 32 Ω headphone load. |
| 16 | VCCR | power_in | Analog power supply input for right-channel headphone amplifier, 3.0-3.6 V; requires decoupling capacitor to GND. |
| 17 | AGNDR | power_in | Analog ground reference for right-channel headphone amplifier. |
| 18 | VCOM | output | DAC common mode voltage output, nominally VCCP/2; requires decoupling capacitor to PGND. |
| 19 | PGND | power_in | Analog ground reference for DAC, oscillator, and PLL. |
| 20 | VCCP | power_in | Analog power supply input for DAC, oscillator, and PLL, 3.0-3.6 V; requires decoupling capacitor to GND. |
| 21 | HOST | input | Host detection during self-powered operation (connect to VBUS) or maximum power selection during bus-powered operation (low: 100 mA, high: 500 mA); LV-TTL level, 5-V tolerant. |
| 22 | HID0/MS | input | MS input for PCM2705C; internally pulled down; active high; LV-TTL level. |
| 23 | HID1/MC | input | MC input for PCM2705C; internally pulled down; active high; LV-TTL level. |
| 24 | HID2/MD | input | MD input for PCM2705C; internally pulled down; active high; LV-TTL level. |
| 25 | TEST1 | input | Test pin; must be set high; LV-TTL level. |
| 26 | TEST0 | input | Test pin; must be set high; LV-TTL level. |
| 27 | SSPND | output | Suspend flag output, active low (low: USB suspended, high: operational). |
| 28 | XTI | input | 12 MHz crystal oscillator input or external clock input at 11.994-12.006 MHz; LV-TTL level. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-28 |
| Category | Data Acquisition |
| Pins | 28 |
CAD (KiCad official)
- Symbol:
PCM2705CDBR - Footprint:
Package_SO:SSOP-28_5.3x10.2mm_P0.65mm - 3D model: SSOP-28 (KiCad packages3D, STEP)
- 3D model files:
pcm2705cdbr-etched.step/pcm2705cdbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pcm2705cdbr.step/pcm2705cdbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (53 pp, sha256
36480dfb52585877, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).