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PGA2311U
Public Made by Adomby adom
Texas Instruments Audio Amplifiers, SOIC-16-300mil. 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
markdownPGA2311U
Texas Instruments · Audio Amplifiers · SOIC-16-300mil
PGA2311U from Texas Instruments, in a SOIC-16-300mil. 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 | ZCEN | input | Zero-crossing enable input (active high); enables gain transitions at zero-crossings with 16 ms timeout |
| 2 | CS | input | Chip-select input (active low); data written when CS is LOW for 16-bit transfer |
| 3 | SDI | input | Serial data input; 16-bit control word (8 bits per channel, MSB first, 0.5 dB step resolution) |
| 4 | VD+ | power_in | Digital power supply +5 V nominal (4.75 V to 5.25 V operating range) |
| 5 | DGND | power_in | Digital ground reference |
| 6 | SCLK | input | Serial clock input; data latched on rising edge (0 to 6.25 MHz maximum) |
| 7 | SDO | tri_state | Serial data output; tri-state when CS HIGH, used for daisy-chaining multiple devices |
| 8 | MUTE | input | Mute control input (active low); disconnects output amplifier with 10 kΩ to ground termination |
| 9 | VINR | input | Analog input right channel; referenced to AGNDR with 2.5 Vrms maximum without clipping |
| 10 | AGNDR | power_in | Analog ground right channel |
| 11 | VOUTR | output | Analog output right channel; maximum swing within ±1.25 V of analog supply rails |
| 12 | VA+ | power_in | Analog power supply +5 V nominal (4.75 V to 5.25 V operating range) |
| 13 | VA- | power_in | Analog power supply -5 V nominal (-4.75 V to -5.25 V operating range) |
| 14 | VOUTL | output | Analog output left channel; maximum swing within ±1.25 V of analog supply rails |
| 15 | AGNDL | power_in | Analog ground left channel |
| 16 | VINL | input | Analog input left channel; referenced to AGNDL with 2.5 Vrms maximum without clipping |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Amplifiers/Comparators |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
PGA2311U - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
pga2311u-etched.step/pga2311u-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pga2311u.step/pga2311u.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
17b42f9e9b169986, retrieved 2026-10-03, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).