component
PCM2704CDBR
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, 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
markdownPCM2704CDBR
Texas Instruments · ADCs/DACs - Special Purpose · SSOP-28-208mil
PCM2704CDBR from Texas Instruments, in a SSOP-28-208mil. 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 | XTO | output | Crystal oscillator output. |
| 2 | CK | output | Clock output for external ROM (PCM2704C); must be left open (PCM2705C). |
| 3 | DT | bidirectional | Data input/output for external ROM (PCM2704C); must be left open with pullup resistor (PCM2705C), LV-TTL level. |
| 4 | PSEL | input | Power source select (low: self-powered, high: bus-powered), LV-TTL level. |
| 5 | DOUT | output | S/PDIF digital output. |
| 6 | DGND | power_in | Digital ground. |
| 7 | VDD | power_in | Digital power supply, 3.0 to 3.6 V (self-powered) or 4.35 to 5.25 V (bus-powered). |
| 8 | D- | bidirectional | USB differential input/output minus, LV-TTL level. |
| 9 | D+ | bidirectional | USB differential input/output plus, LV-TTL level. |
| 10 | VBUS | power_in | Connect to USB power for bus-powered operation or to VDD for self-powered operation. |
| 11 | ZGND | power_in | Ground for internal regulator. |
| 12 | AGNDL | power_in | Analog ground for headphone amplifier of L-channel. |
| 13 | VCCL | power_in | Analog power supply for headphone amplifier of L-channel, 3.0 to 3.6 V. |
| 14 | VOUTL | output | DAC analog output for L-channel, 0.55 VCCL peak-to-peak output voltage. |
| 15 | VOUTR | output | DAC analog output for R-channel, 0.55 VCCR peak-to-peak output voltage. |
| 16 | VCCR | power_in | Analog power supply for headphone amplifier of R-channel, 3.0 to 3.6 V. |
| 17 | AGNDR | power_in | Analog ground for headphone amplifier of R-channel. |
| 18 | VCOM | power_out | Common voltage for DAC at VCCP/2; connect decoupling capacitor to PGND. |
| 19 | PGND | power_in | Analog ground for DAC, oscillator, and PLL. |
| 20 | VCCP | power_in | Analog power supply for DAC, oscillator, and PLL, 3.0 to 3.6 V. |
| 21 | HOST | input | Host detection during self-powered operation (connect to VBUS) or max power select during bus-powered operation (low: 100 mA, high: 500 mA), LV-TTL level 5-V tolerant. |
| 22 | HID0/MS | input | HID key state input (mute) active high (PCM2704C) or MS input (PCM2705C), LV-TTL level with internal pulldown. |
| 23 | HID1/MC | input | HID key state input (volume up) active high (PCM2704C) or MC input (PCM2705C), LV-TTL level with internal pulldown. |
| 24 | HID2/MD | input | HID key state input (volume down) active high (PCM2704C) or MD input (PCM2705C), LV-TTL level with internal pulldown. |
| 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, active low (low: suspend, high: operational). |
| 28 | XTI | input | Crystal oscillator input, accepts 12 MHz ±6 ppm external clock, LV-TTL level. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-28-208mil |
| Category | Data Acquisition |
| Pins | 28 |
CAD (KiCad official)
- Symbol:
PCM2704CDBR - Footprint:
Package_SO:SSOP-28_5.3x10.2mm_P0.65mm - 3D model: SSOP-28-208mil (KiCad packages3D, STEP)
- 3D model files:
pcm2704cdbr-etched.step/pcm2704cdbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pcm2704cdbr.step/pcm2704cdbr.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 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).