AD1833

5 V Stereo Audio System with 3.3 V Tolerant Digital Interface Supports 96 kHz Sample Rates on Six Channels and 192 kHz on 2 Channels Supports 16-/20-/24-Bit Word Lengths Multibit Sigma-Delta Modulators with "Perfect Differential Linearity Restoration" for Reduced Idle Tones and Noise Floor Data Directed Scrambling DACs-Least Sensitive to Jitter Differential Output for Optimum Performance DACs Signal-to-Noise and Dynamic Range: 110 dB 94 dB THD + N-6-Channel Mode 95 dB THD + N-2-Channel Mode On-Chip Volume Control Per Channel with 1024-Step Linear Scale Software Controllable Clickless Mute Digital De-Emphasis Processing Supports 256* fS, 512*fS, and 768*fS Master Clock Modes Power-Down Mode Plus Soft Power-Down Mode Flexible Serial Data Port with Right-Justified, Left- Justified, I²S-Compatible and DSP Serial Port Modes Supports Packed Data Mode (TDM) for DACs 48-Lead LQFP Plastic Package

(TA = 25°C unless otherwise noted)
AVDD, DVDDx to AGND, DGND . . . . . . . ............................ 0.3 V to +6.5 V
AGND to DGND . . . . . . . . . . . . . . . . . . . ........................... 0.3 V to +0.3 V
Digital I/O Voltage to DGND . . . . . .......................0.3 V to DVDD2 + 0.3 V
Analog I/O Voltage to AGND . . . . . . ......................0.3 V to AVDD + 0.3 V
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . .......................40°C to +85°C
Storage Temperature Range . . . . . . . . . . . ................. 65°C to +150°C
Maximum Junction Temperature . . . . . . . . . . . . . . . ........................ 150°C
LQFP, JA Thermal Impedance . . . . . . . . . . . . . . . ...................... . 91°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . ........................ . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . ........................ . 220°C

*Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Only one absolute maximum rating may be applied at any one time.

The AD1833 is a complete, high-performance, single-chip, multichannel, digital audio playback system. It features six audio playback channels each comprising a high-performance digital
interpolation filter, a multibit sigma-delta modulator featuring Analog Devices patented technology and a continuous-time voltage-out analog DAC section. Other features include an on-chip
clickless attenuator and mute capability, per channel, programmed through an SPI-compatible serial control port.

The AD1833 is fully compatible with all known DVD formats, catering for up to 24-bit word lengths at sample rates of 48 kHz and 96 kHz on all six channels while supporting a 192 kHz sample rate on two channels. It also provides the "Redbook" standard 50 s/15 s digital de-emphasis filters at sample rates of 32 kHz, 44.1 kHz, and 48 kHz.

The AD1833 has a very flexible serial data input port that allows for glueless interconnection to a variety of ADCs, DSP chips, AES/EBU receivers, and sample rate converters. The AD1833
can be configured in left-justified, I2S, right-justified, or DSP serial port compatible modes. The AD1833 accepts serial audio data in MSB first, two's complement format. While the AD1833
can be operated from a single 5 V power supply, it also features a separate supply pin for its digital interface which allows the device to be interfaced to devices using 3.3 V power supplies.

It is fabricated on a single monolithic integrated circuit and is housed in a 48-lead LQFP package for operation over the temperature range 40 to +85.