104 dB, 192 kHz Stereo Audio A/D Converter With Mux And PGA
The highly integrated CS5345 stereo audio analog-to-digital (A/D) converter provides designers with a solution that streamlines product development, reduces overall design complexity and cost, and delivers premium audio performance. The CS5345 features an integrated analog front-end with 6:1 stereo input mux. Also included is a programmable gain amplifier (PGA) capable of ±12 dB of analog gain in 0.5 dB step sizes with zero-crossing, click-free transitions to maintain superior audio quality. One pair of inputs has a dedicated microphone pre-amplifier in its path that provides 32 dB of gain and a low-noise microphone bias supply is also available. The stereo A/D conversion is based on multibit Delta-Sigma architecture. The CS5345 supports 24-bit conversion and sample rates up to 192 kHz. A high-pass filter is included for DC offset removal and a dedicated pin is available for detecting overflow conditions. The CS5345 operates from either a 3.3 V or 5 V power supply. It has 1.8 V to 5 V logic power supplies for the control and serial port, which allows a direct interface to external processors or microcontrollers without level shifting. The CS5345 delivers professional quality at a break-through price point for applications such as DVD recorders and receivers, digital video recorders/personal video recorders, digital TVs, set-top boxes, home media centers, automotive entertainment systems, musical instruments and PC sound cards.
Due to circumstances outside of our direct influence, our vendor has given us minimal time to plan within our normal EOL notification period. We ask for your immediate attention to place LTB orders, within the timeline, to allow processing of material and build FG ahead of closure. We have given an extended period for LTS on this occasion due to the difficult circumstances we face. There could be limits to total available material due to time constraints and yields.
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Technology
Features
- System sampling rates up to 192 kHz
- 104 dB dynamic range
- -95 dB THD+N
- 6:1 stereo input mux
- Programmable gain amplifier: ±12 dB gain, 0.5 dB step sizes with zero crossing
- Microphone pre-amp with 32 dB gain and low-noise bias supply
- Single-ended inputs
- 3.3 V or 5.0 V power supply
- Support for direct interface to logic levels from 1.8 V to 5 V
Parametric Specifications
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