Cirrus Logic CS4354 - 101dB Stereo DAC with 2Vrms Line Output from 5V
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The CS4354 is a 24-bit, 192kHz stereo audio D/A converter with an on-chip 2Vrms line driver working from a single 5 V power supply. This new DAC is a more integrated version of the CS4352, which required a 9 to 12V power supply, and also a low cost version of the CS4353.
Based on a charge pump architecture, the CS4354 outputs a 2VRMS voltage without the need for high voltage regulator. The CS4354 also features a ground-centered output architecture, removing the need for external DC blocking capacitors and any pop prevention circuit. Therefore, this new generation DAC greatly reduces the amount of external component count while making the design simpler.
The CS4354 is ideal for any application that requires a line-level output and is cost-sensitive. Target applications are mainstream consumer products such as DTV, Blu-ray players, set-top boxes, video game consoles, DVD players and recorders, personal video recorders (PVRs), DVD receivers, etc.
Key Specifications
- Multi-bit delta-sigma modulator
- 101 dB A-wt dynamic range
- -86 dB THD+N
- Single-ended ground centered analog architecture
- No DC-blocking capacitors required
- Integrated step-up/Inverting charge pump
- Filtered line-level outputs
- Low clock-jitter sensitivity
- Low-latency digital filtering
- Low out-of-band noise
- Supports sample rates up to 192 kHz
- 24-Bit resolution
- Power supplies
- +5V analog
- +1.5 to 5 V interface
- 50mW power consumption
- 14-pin SOIC, Lead-free assembly, commercial grade only
Features and Benefits
Single-ended ground-centered output | No DC-blocking cap required No mute circuit required |
Delivers 2Vrms line output from a single 5V supply | No high voltage required |
Integrated level shifters for serial audio port | Dedicated VL supply supports direct interface to logic levels from 1.5V to 5V |
Integrated Line Driver | 2Vrms output enables direct drive of system output Reduces external component count and PCB space requirements Simplifies design |
Multi-bit Delta-Sigma architecture | Further improves out-of-band noise performance |
Stand-alone mode operation | Does not require micro-controller Simplifies design |
14-SOIC | conventional package, easy to solder down on cost efficient PCBs |