CS4391A 24-Bit, 192 kHz Stereo DAC with Volume Control Features Description The CS4391A is a complete stereo digital-to-analog sys- Complete Stereo DAC System: Interpolation, tem including digital interpolation, fourth-order delta- D/A, Output Analog Filtering sigma digital-to-analog conversion, digital de-emphasis, 108 dB Dynamic Range volume control, channel mixing and analog filtering. The 94 dB THD+N advantages of this architecture include: ideal differential linearity, no distortion mechanisms due to resistor Direct Stream Digital Mode matching errors, no linearity drift over time and tempera- Low Clock Jitter Sensitivity ture and a high tolerance to clock jitter. +5 V Power Supply The CS4391A accepts PCM data at sample rates from ATAPI Mixing 4 kHz to 192 kHz, DSD audio data, consumes very little On-Chip Digital De-emphasis for 32, 44.1, power and operates over a wide power supply range. and 48 kHz These features are ideal for DVD, A/V receivers, CD and set-top box systems. Volume Control with Soft Ramp 119 dB Attenuation ORDERING INFORMATION 1 dB Step Size CS4391A-KS 20-pin SOIC -10 to 70 C CS4391A-KZ 20-pin TSSOP -10 to 70 C Zero Crossing Click-Free Transitions CS4391A-KZZ 20-pin TSSOP, Lead Free -10 to 70 C Direct Interface with 5 V to 1.8 V Logic CDB4391A Evaluation Board I M1 M2 M0 (SDA/CDIN) M3 (SCL/CCLK) (AD0/CS) AMUTEC BMUTEC CMOUT FILT+ 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 INTERPOLATOR 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. 2004 JUL 04 (All Rights Reserved) www.cirrus.com DS600PP3 1CS4391A TABLE OF CONTENTS 1. CHARACTERISTICS/SPECIFICATIONS ................................................................................. 5 2. TYPICAL CONNECTION DIAGRAMS ................................................................................... 13 3. REGISTER QUICK REFERENCE .......................................................................................... 15 3.1 Mode Control 1 (address 01h) .......................................................................................... 15 3.2 Volume and Mixing Control (address 02h)........................................................................ 16 3.3 Channel A Volume Control (address 03h) ........................................................................ 16 3.4 Channel B Volume Control (address 04h) ........................................................................ 16 3.5 Mode Control 2 (address 05h) .......................................................................................... 17 4. REGISTER DESCRIPTION .................................................................................................... 18 4.1 Mode Control 1 - Address 01h.......................................................................................... 18 4.1.1 Auto-Mute (Bit 7) ................................................................................................. 18 4.1.2 Digital Interface Formats (Bits 6:4) ...................................................................... 18 4.1.3 De-Emphasis Control (Bits 3:2) ........................................................................... 18 4.1.4 Functional Mode (Bits 1:0) .................................................................................. 18 4.2 Volume and Mixing Control (Address 02h) ....................................................................... 19 4.2.1 Channel A Volume = Channel B Volume (Bit 7) ................................................. 19 4.2.2 Soft Ramp or Zero Cross Enable (Bits 6:5) ......................................................... 19 4.2.3 ATAPI Channel Mixing and Muting (Bits 4:0) ...................................................... 19 4.3 Channel A Volume Control - Address 03h........................................................................ 19 4.4 Channel B Volume Control - Address 04h ....................................................................... 20 4.4.1 Mute (Bit 7) .......................................................................................................... 20 4.4.2 Volume Control (Bits 6:0) .................................................................................... 20 4.5 Mode Control 2 - Address 05h.......................................................................................... 20 4.5.1 Invert Signal Polarity (Bits 7:6) ............................................................................ 20 4.5.2 Control Port Enable (Bit 5) .................................................................................. 20 4.5.3 Power Down (Bit 4) ............................................................................................. 20 4.5.4 AMUTEC = BMUTEC (Bit 3) ............................................................................... 20 4.5.5 Freeze (Bit 2) ...................................................................................................... 21 4.5.6 Master Clock Divide (Bit 1) .................................................................................. 21 Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. 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