8-Pin, Stereo A/D Converters

The CS5330A/31A is a complete, stereo, analog-to-digital converter which performs anti-alias filtering, sampling, and analog-to-digital conversion generating 18-bit values for both left and right inputs in serial form. The output sample rate can be infinitely adjusted between 2 and 50 kHz.

The CS5330A/31A operates from a single 5V supply and requires only 150 mW for normal operation, making it ideal for battery-powered applications.

The A/D converter uses Delta-Sigma modulation with 128X oversampling followed by digital filtering and decimation, which removes the need for an external anti-alias filter. The linear-phase digital filter has a passband to 21.7 kHz, 0.05 dB passband ripple and >80 dB stopband rejection. The device also contains a high-pass filter to remove DC offsets.

• 18-bit resolution
• 94 dB dynamic range
• Linear phase digital anti-alias filtering
  • 0.05 dB passband ripple
  • 80 dB stopband rejection
• Complete CMOS stereo A/D system
  • Delta-Sigma A/D converters
  • Digital anti-alias filtering
  • S/H circuitry and voltage reference
• Adjustable system sampling rates
  • Including 32 kHz, 44.1 kHz, and 48 kHz
• Low power dissipation: 150 mW
  • Power-down mode for portable applications
• Single 5V power supply
• Package: 8-pin SOIC 90.298" wide)