AK4526A Datasheet | Asahi Kasei Microdevices

DESCRIPTION The AK4526A is a single chip CODEC that includes two channels of ADC and six channels of DAC. The ADC outputs 20bit data and the DAC accepts up to 24bit input data. The ADC has an enhanced dual bit architecture with wide dynamic range. The DAC achieves low outband noise and high jitter tolerance by use of SCF(switched capacitor filter) techniques. An auxiliary digital audio input interface maybe used instead of the ADC for passing audio data to the primary audio output port. Control may be set directly by pins or programmed through a separate serial interface. The AK4526A has a dynamic range of 100d B and is well suited for digital surround for home theater and car audio. An AC-3 system can be built with a IEC958(SPDIF) receiver such as the AK4110. The AK4526A is available in a small 44pin LQFP package which will reduce system space. - AC-3 is a trademark of Dolby Laboratories. FEATURES - 2ch ADC with 20bit data output capability - 64x Oversampling - Sampling Rate up to 48k Hz - Differential Inputs with single-ended use capability - S/(N+D): 92d B - Dynamic Range, S/N: 100d B - Digital HPF for offset cancellation - I/F format: MSB justified or I2S - 6ch DAC with 24bit data input capability - 128x Oversampling - Sampling Rate up to 96k Hz - Single-Ended Outputs - 2nd order SCF - S/(N+D): 90d B - Dynamic Range: 100d B - S/N: 100d B, 108d B(Mute) - I/F format: MSB justified, LSB justified or I2S - Individual attenuation control with 21 levels and 1d B step - De-emphasis for 32k Hz, 44.1k Hz, 48k Hz and 96k Hz - High Jitter Tolerance - TTL Level Digital I/F - Serial u P I/F for mode setting - Master clock: 256fs, 384fs or 512fs for fs=32k Hz to 48k Hz 128fs, 192fs or 256fs for fs=96k Hz - Power Supply: 4.5 to 5.5V - Small 44pin LQFP M0037-E-02 -1- 1999/6 ASAHI KASEI [AK4526A] n Block Diagram .. MCKO OCKS LIN+ LINRIN+ RIN- ADC ADC HPF HPF Audio...