CS4392 24-Bit, 192 kHz Stereo DAC with Volume Control Features Description The CS4392 is a complete stereo digital-to-analog sys- z Complete Stereo DAC System: Interpolation, tem including digital interpolation, fifth-order delta-sigma D/A, Output Analog Filtering digital-to-analog conversion, digital de-emphasis, vol- z 114 dB Dynamic Range ume control, channel mixing and analog filtering. The z 100 dB THD+N advantages of this architecture include: ideal differential linearity, no distortion mechanisms due to resistor z Up to 192kHz Sample Rates matching errors, no linearity drift over time and tempera- z Direct Stream Digital Mode ture, and a high tolerance to clock jitter. z Low Clock Jitter Sensitivity The CS4392 accepts PCM data at sample rates from z Single +5 V Power Supply 4 kHz to 192 kHz, DSD audio data, has selectable digital z Selectable Digital Filters filters, and consumes very little power. These features Fast and Slow roll-off are ideal for DVD, SACD players, A/V receivers, CD and set-top box systems. The CS4392 is pin and register z Volume Control with Soft Ramp compatible with the CS4391, making easy performance 1 dB Step Size upgrades possible. Zero Crossing Click-Free Transitions ORDERING INFORMATION z Direct Interface with 5 V to 1.8 V Logic CS4392-KS -10 to 70 C 20-pin SOIC z ATAPI Mixing Functions CS4392-KZ -10 to 70 C 20-pin TSSOP z Pin Compatible with the CS4391 CS4392-KZZ, Lead Free -10 to 70 C 20-pin TSSOP CDB4392 Evaluation Board I M1 M2 M0 AMUTEC BMUTEC CMOUT FILT+ (SDA/CDIN) M3 (SCL/CCLK) (AD0/CS) MODE SELECT EXTERNAL REFERENCE (CONTROL PORT) MUTE CONTROL RST VOLUME AOUTA+ ANALOG CONTROL INTERPOLATION FILTER DAC FILTER AOUTA- SCLK SERIAL MIXER PORT LRCK AOUTB+ ANALOG INTERPOLATION FILTER VOLUME DAC FILTER AOUTB- CONTROL SDATA MCLK This document contains information for a new product. Preliminary Product Information Cirrus Logic reserves the right to modify this product without notice. Copyright Cirrus Logic, Inc. 2002 SEP 04 CS4392 TABLE OF CONTENTS 1. PIN DESCRIPTION - PCM DATA MODE .................................................................... 5 1.1 PIN DESCRIPTION - DSD mode ..................................................................... 6 2. TYPICAL CONNECTION DIAGRAMS ........................................................................ 7 3. APPLICATIONS ........................................................................................................... 9 3.1 Recommended Power-up Sequence for Hardware Mode ................................ 9 3.2 Recommended Power-up Sequence and Access to Control Port Mode ............................................................................................. 9 3.3 Analog Output and Filtering .............................................................................. 9 3.4 Interpolation Filter ........................................................................................... 10 3.5 System Clocking ............................................................................................. 10 3.6 Digital Interface Format ..................................................................................11 3.7 De-Emphasis .................................................................................................. 12 3.8 Oversampling Modes ...................................................................................... 12 3.9 Using DSD mode ............................................................................................ 13 3.10 Mute Control ................................................................................................. 13 4. CONTROL PORT INTERFACE ................................................................................. 14 4.0.1 MAP Auto Increment ............................................................................. 14 4.0.2 I2C Mode ............................................................................................... 14 I2C Write.................................................................................................... 14 I2C Read ................................................................................................... 15 4.0.3 SPI Mode ............................................................................................... 16 SPI Write.................................................................................................... 16 4.1 Memory Address Pointer (MAP)...................................................................... 16 5. REGISTER QUICK REFERENCE ............................................................................. 17 6. REGISTER DESCRIPTION ........................................................................................ 18 6.1 Mode Control 1 - Address 01h ........................................................................ 18 6.1.1 Auto-Mute (Bit 7) ................................................................................... 18 6.1.2 Digital Interface Formats (Bits 6:4) ........................................................ 18 6.1.3 De-Emphasis Control (Bits 3:2) ............................................................. 19 6.1.4 Functional Mode (Bits 1:0) .................................................................... 19 6.2 Volume and Mixing Control (Address 02h) ..................................................... 20 6.2.1 Channel A Volume = Channel B Volume (Bit 7) .................................... 20 Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one nearest you go to