component
PCM1801U
Public Made by Adomby adom
Texas Instruments ADCs/DACs - Special Purpose, SOIC-14. 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
markdownPCM1801U
Texas Instruments · ADCs/DACs - Special Purpose · SOIC-14
PCM1801U from Texas Instruments, in a SOIC-14. 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 | VINL | input | Left-channel analog input with a full-scale input of 2.828 Vp-p, a 2.1 V center voltage and 30 kΩ input impedance. |
| 2 | VINR | input | Right-channel analog input with a full-scale input of 2.828 Vp-p, a 2.1 V center voltage and 30 kΩ input impedance. |
| 3 | DGND | power_in | Digital ground, not internally connected to AGND, and should be connected directly to AGND under the package with low impedance. |
| 4 | VDD | power_in | Digital power supply, 4.5 V to 5.5 V (5 V nominal). |
| 5 | SCKI | input | System clock input (Schmitt-trigger, TTL family) that must be 256 fS, 384 fS, or 512 fS, with an 8.192 MHz to 24.576 MHz range. |
| 6 | BCK | input | Bit clock input (Schmitt-trigger) for the audio data interface, with a minimum BCK period of 300 ns. |
| 7 | LRCK | input | Sampling clock (word clock) input (Schmitt-trigger), which must be synchronized to SCKI, over a 4 kHz to 48 kHz sampling range. |
| 8 | DOUT | output | Audio data output, forced to zero during power-on reset, with a recommended load capacitance of 10 pF maximum. |
| 9 | BYPAS | input | HPF bypass control with a 100-kΩ typical internal pulldown; LOW enables the high-pass (dc cut) filter and HIGH bypasses it. |
| 10 | FMT | input | Audio data format select with a 100-kΩ typical internal pulldown; LOW selects 16-bit left-justified and HIGH selects 16-bit I2S. |
| 11 | VCC | power_in | Analog power supply, 4.5 V to 5.5 V (5 V nominal). |
| 12 | AGND | power_in | Analog ground, not internally connected to DGND. |
| 13 | VREF2 | passive | Reference 2 decoupling pin; a 4.7 µF tantalum capacitor is recommended from VREF2 to AGND, placed as close as possible to the pin. |
| 14 | VREF1 | passive | Reference 1 decoupling pin; a 4.7 µF tantalum capacitor is recommended from VREF1 to AGND, placed as close as possible to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Data Acquisition |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
PCM1801U - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
pcm1801u-etched.step/pcm1801u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pcm1801u.step/pcm1801u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
cddeda6b088aefa3, 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).