| Number of ADC channels | 2 |
| Number of DAC channels (#) | 2 |
| Digital audio interface | R, L, I2S |
| Analog inputs | 2 |
| Sampling rate (Max) (kHz) | 48 |
| Rating | Catalog |
| ADC SNR (Typ) (dB) | 90 |
| DAC SNR (Typ) (dB) | 94 |
| | |
- Monolithic 20-Bit
ADC and DAC - 16/20-Bit Input/Output Data
- Software Control: PCM3002
- Hardware Control: PCM3003
- Stereo ADC:
- Single-Ended Voltage Input
- Antialiasing Filter
- 64× Oversampling
- High Performance
- THD+N: &3150;86 dB
- SNR: 90 dB
- Dynamic Range: 90 dB
- Stereo DAC:
- Single-Ended Voltage Output
- Analog Low-Pass Filter
- 64× Oversampling
- High Performance
- THD+N: –86 dB
- SNR: 94 dB
- Dynamic Range: 94 dB
- Special Features (PCM3002, PCM3003)
- Digital De-Emphasis: 32 kHz, 44.1 kHz, 48 kHz
- Power Down: ADC/DAC Independent
- Special Features (PCM3002)
- Digital Attenuation (256 Steps)
- Soft Mute
- Digital Loopback
- Four Alternative Audio Data Formats
- Sampling Rate: 4 kHz to 48 kHz
- Single 3-V Power Supply
- Small Package: SSOP-24
- APPLICATIONS
- DVC Applications
- DSC Applications
- Portable/Mobile Audio Applications
System Two, Audio Precision are trademarks of Audio Precision, Inc.
All other trademarks are the property of their respective owners.
The PCM3002 and PCM3003 are low-cost, single-chip stereo audio codecs (analog-to-digital and digital-to-analog converters) with single-ended analog voltage input and output.
The ADCs and DACs employ delta-sigma modulation with 64-times oversampling. The ADCs include a digital decimation filter, and the DACs include an 8-times oversampling digital interpolation filter. The DACs also include digital attenuation, de-emphasis, infinite zero detection, and soft mute to form a complete subsystem. The PCM3002 and PCM3003 operate with left-justified (ADC) and right-justified (DAC) formats, while the PCM3002 also supports other formats, including the I2S data format. The PCM3002 and PCM3003 provide a power-down mode that operates on the ADCs and DACs independently.
The PCM3002 and PCM3003 are fabricated using a highly advanced CMOS process, and are available in a 24-pin SSOP package. The PCM3002 and PCM3003 are suitable for a wide variety of cost-sensitive consumer applications where good performance is required.
The PCM3002 programmable functions are controlled by software. The PCM3003 functions, which are controlled by hardware, include de-emphasis, power-down, and audio data format selections.
