AK5351

ASAHI KASEI [AK5351] AK5351 Enhanced Dual bit ∆Σ 20bit ADC GENERAL DESCRIPTION The AK5351 is a 20-bit, 64x oversampling rate(64fs), 2-channel A/D converter for stereo digital systems. The ∆Σ modulator in the AK5351 uses the new developed Enhanced Dual bit architecture. This new architecture achieves the wider dynamic range, while keeping much the same superior distortion characteristics as the conventional Single bit way. The AK5351 is suitable for digital surround and Hi-Fi audio application such as Car-audio, MD, etc. Analog inputs of the AK5351 are normally Full-differential inputs, while they are also acceptable Single-ended inputs. The AK5351 is available in a small 24pin VSOP package which will reduce your system space. FEATURES † Full-differential / Single-ended inputs † S/(N+D): 97dB † DR, S/N: 103dB † Linear phase digital filter Pass band: 0~22kHz(@fs=48kHz) Pass band ripple: ±0.005dB Stop band attenuation: 80dB † Digital HPF for DC-offset cancel † Master clock: 256fs/384fs † Power supply: 5V±10% † Small package: 24pinVSOP 0166-E-00 -1- 1997/4 ASAHI KASEI „ Ordering Guide AK5351-VF AKD5351/2 „ Pin Layout -40~85°C Evaluation Board 24pin VSOP [AK5351] „ Replacement from AK5350 to AK5351 Package Analog Inputs Voltage fc of HPF(@fs=48kHz) SCLK AK5350 28VSOP ±3.47Vp-p 7Hz ~64fs AK5351 24VSOP *)Interchangeable with AK5350 ±2.10Vp-p *)Acceptable Single-ended 1Hz ~128fs 0166-E-00 -2- 1997/4 ASAHI KASEI [AK5351] PIN/FUNCTION No. 1 2 3 Pin Name AINR+ AINRVREF I...