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PCM1802 Stereo ADC
PCM1802
Texas Instrumentsic data converter
The PCM1802 is a 24-bit delta-sigma stereo ADC with single-ended analog voltage input, designed for high-performance audio applications.
In stock
Specifications
8- Operating Voltage
- 5.0 - 5.5 V (VCC), 3.6 V (VDD)
- Supply Current
- 24 - 30 mA (VCC = 5 V, VDD = 3.3 V)
- Interface
- SPI (SCKI), GPIO (BCK, FSYNC, LRCK, MODE0, MODE1, OSR, PDWN, SCKI, FMT0, FMT1)
- Resolution
- 24 bits
- Range
- -3 VP-P (VINL, VINR)
- Accuracy
- ±1% gain mismatch, ±2% gain error (FSR)
- Temperature Range
- -40°C to 85°C (TA)
- Package
- 20-Pin SSOP
Pinout
20| Pin | Name | Functions | Notes |
|---|---|---|---|
| 6 | AGND | GND | Analog GND |
| 11 | BCK | GPIO | Bit clock input and output |
| 8 | BYPAS | GPIO | HPF bypass control. Low: normal mode (DC cut); High: bypass mode (through) |
| 13 | DGND | GND | Digital GND |
| 12 | DOUT | GPIO | Audio data output |
| 17 | FMT0 | GPIO | Audio data format select 0 (see Data Format) |
| 18 | FMT1 | GPIO | Audio data format select 1 (see Data Format) |
| 9 | FSYNC | GPIO | Frame synchronous clock input and output |
| 10 | LRCK | GPIO | Sampling clock input and output |
| 19 | MODE0 | GPIO | Mode select 0 (see Interface Mode) |
| 20 | MODE1 | GPIO | Mode select 1 (see Interface Mode) |
| 16 | OSR | GPIO | Oversampling ratio select. Low: ×64 fS; High: ×128 fS |
| 7 | PDWN | GPIO | Power-down control, active-low |
| 15 | SCKI | SPI | System clock input; 256 fS, 384 fS, 512 fS, or 768 fS |
| 5 | VCC | POWER | Analog power supply, 5 V |
| 14 | VDD | POWER | Digital power supply, 3.3 V |
| 1 | VINL | ADC | Analog input, L-channel |
| 2 | VINR | ADC | Analog input, R-channel |
| 3 | VREF1 | — | Reference-1 decoupling capacitor |
| 4 | VREF2 | ADC | Reference-2 voltage input, normally connected to VCC |
Interactive pinout
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PCM1802
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