108/114 dB Stereo Codec
The CS4271 is a highly integrated audio codec that utilizes a single-ended input and differential output architecture to deliver high analog performance and to maximize system flexibility with an on-chip oscillator, output volume control with soft ramp and zero crossing, selectable digital filter response, and integrated level shifters for direct interface to logic levels from 2.5 V to 5 V. The on-chip oscillator eliminates the need for an external crystal oscillator circuit, thereby reducing overall design cost and conserving circuit board space. The CS4271 automatically uses the on-chip oscillator in the absence of an applied main clock, simplifying system design.
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Technology
Features
- Complete stereo codec
- 24-bit conversion
- System sampling rates up to 192 kHz
- 108 dB A/D converter dynamic range
- 114 dB D/A converter dynamic range
- -98 dB A/D converter/-105 dB D/A converter THD+N
- Output digital volume control with soft ramp
- Low-latency digital filter
- Selectable digital filter response
- High-pass filter or DC offset calibration
- Single-ended input architecture
- Differential output architecture
- On-chip oscillator
- Supports main or secondary mode operations
- 5 V analog power supply
- 3.3 V or 5 V digital power supply
- Supports direct interface to logic levels from 2.5 V to 5.0 V
- Footprint-compatible with the CS4272
- Package: 28-pin TSSOP; lead-free assembly
- Consumer and automotive D-grade availability
Parametric Specifications
| Channels In | 2 |
| Channels Out | 2 |
| DAC THD+N (dB) | -100 |
| ADC THD+N (dB) | -98 |
| Analog Power Supply (V) | 5 |
| Digital Power Supply (V) | 3.3-5 |
| Logic Power Supply (V) | 2.5-5 |
| Operational Power Consumption (mW) | 738 |
| Package | 28 TSSOP |
