Product specifications
The CS4245 is a highly integrated stereo audio codec an integrated analog input selector on the front end to accommodate up to six stereo audio sources. 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 sonic 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 D/A converter includes digital attenuation, single ended inputs and outputs, and Popguard® technology for control of clicks and pops.
Features
• Complete stereo codec
• 24-bit conversion
• System sampling rates up to 192 kHz
• Advanced multibit Delta Sigma architecture
• 104 dB dynamic range
• -95 dB ADC THD+N
• -90 dB DAC THD+N
• 6:1 input mux
o Up to six stereo input sources, pass-through mode
• 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
• Digital volume control
• Popguard technology for control of clicks and pops
• Single-ended inputs and outputs
• 3.3 V or 5.0 V power supply
• Support for direct interface to logic levels from 1.8 V to 5 V
• Overflow detection
• Support for asynchronous A/D and D/A converter sample rates
• Pin-compatible with the CS5345
• Package: 48-pin LQFP, lead-free assembly
