AD1936 Datasheet | Analog Devices

Features PLL generated (32-192k Hz) or direct master clock Low EMI design 109 d B DAC/ 107d B ADC Dynamic Range and SNR -94d B THD+N Single 3.3V Supply Tolerance for 5V logic inputs Supports 24-bits and 8 k Hz - 192 k Hz sample rates Differential ADC input Single-ended or Differential DAC output versions Log volume control with "auto-ramp" function Hardware and software controllable clickless mute Software and hardware power-down Right justified, left justified, I2S and TDM Modes Master and slave modes up to 16 channel in/out 48-lead LQFP or 64-lead LQFP plastic package AD1935/AD1936/AD1937/AD1938/AD1939 Applications Automotive audio systems Home theater systems Set-top boxes Digital audio effects processors GENERAL DESCRIPTION The AD193X family are high performance, single-chip codecs that provide 4 ADCs with differential input and 8 DACs with either single-ended or differential output using ADI’s patented multibit sigma-delta architecture. An SPI® or I2C® port is included, allowing a microcontroller to adjust volume and many other parameters. The AD193X family operates from 3.3V digital and analog supplies. The AD193X is available in a 48-lead (SE output) or 64-lead (differential output) LQFP package. The AD193X is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive master clock from L-R clock, the AD193X eliminates the need for a separate high frequency master clock. It can also be used with a suppressed bit clock. The D-A and A-D converters are designed using the latest ADI continuous time architectures to further minimize EMI. By using 3.3V supplies, power consumption is minimized, further reducing emissions. Functional Block Diagram Digital Audio Input/Output AD193X Serial Data Port DAC DAC ADC SDATAOUT SDATAIN Analog Audio Inputs ADC ADC ADC Digital Filter CLOCKS Digital Filter & Volume Control DAC DAC DAC DAC DAC DAC Analog Audio Outputs Timing Management &...