CS4351 192 kHz Stereo DAC with 2 Vrms Line Out Features Description Multi-Bit Delta-Sigma Modulator The CS4351 is a complete stereo digital-to-analog sys- tem including digital interpolation, fifth-order multi-bit 24-Bit Conversion delta-sigma digital-to-analog conversion, digital de-em- Up to 192 kHz Sample Rates phasis, volume control, channel mixing, analog filtering, and on-chip 2 Vrms line-level driver. The advantages of 112 dB Dynamic Range this architecture include ideal differential linearity, no -100 dB THD+N distortion mechanisms due to resistor matching errors, no linearity drift over time and temperature, high toler- +3.3 V, +9 to 12 V, and VL Power Supplies ance to clock jitter, and a minimal set of external 2 Vrms Output into 5 k AC Load components. Digital Volume Control with Soft Ramp The CS4351 is available in a 20-pin TSSOP package in 119 dB Attenuation both Commercial (-10C - +70C) and Automotive grades (-40C to +85C). The CDB4351 Customer 1/2 dB Step Size Demonstration board is also available for device evalu- Zero Crossing Click-Free Transitions ation and implementation suggestions. Please see Ordering Information on page 37 for complete details. ATAPI Mixing These features are ideal for cost-sensitive, 2-channel Low Clock Jitter Sensitivity audio systems including DVD players, A/V receivers, Popguard Technology for Control of Clicks set-top boxes, digital TVs and VCRs, mini-component and Pops systems, and mixing consoles. 9 V to 12 V 8 V to 3.3V 3.3 V 2 dware or I C/SPI Control Data Register/Hardware Configuration Reset Interpolation Multibit Amp 2 Vrms Line Level Filter with Modulator DAC + Left Channel Outpu Volume Control Filter PCM erial Audio Input Serial Interface Interpolation 2 Vrms Line Level Amp Multibit Filter with Right Channel Modulator DAC + Volume Control Filter Output Auto Speed Mode External Detect Left and Right Mute Mute Controls Internal Voltage Control Reference Copyright Cirrus Logic, Inc. 2005 DECEMBER 05 (All Rights Reserved) CS4351 TABLE OF CONTENTS 1. PIN DESCRIPTION ............................................................................................................................... 5 2. CHARACTERISTICS AND SPECIFICATIONS ..................................................................................... 6 SPECIFIED OPERATING CONDITIONS.............................................................................................. 6 ABSOLUTE MAXIMUM RATINGS ........................................................................................................6 DAC ANALOG CHARACTERISTICS .................................................................................................... 7 COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ....................................... 8 COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE ....................................... 9 SWITCHING SPECIFICATIONS - SERIAL AUDIO INTERFACE ...................................................... 10 SWITCHING CHARACTERISTICS - CONTROL PORT - IC FORMAT ........................................... 11 SWITCHING CHARACTERISTICS - CONTROL PORT - SPI FORMAT......................................... 12 DIGITAL CHARACTERISTICS............................................................................................................ 13 POWER AND THERMAL CHARACTERISTICS ................................................................................. 13 3. TYPICAL CONNECTION DIAGRAM .................................................................................................. 14 4. APPLICATIONS .................................................................................................................................. 15 4.1 Sample Rate Range/Operational Mode Detect ............................................................................ 15 4.1.1 Auto-Detect Enabled ........................................................................................................ 15 4.1.2 Auto-Detect Disabled ....................................................................................................... 15 4.2 System Clocking ........................................................................................................................... 15 4.3 Digital Interface Format ................................................................................................................ 16 4.3.1 Stand-Alone Mode ........................................................................................................... 16 4.3.2 Control Port Mode ........................................................................................................... 16 4.4 De-Emphasis Control ................................................................................................................... 17 4.4.1 Stand-Alone Mode ........................................................................................................... 18 4.4.2 Control Port Mode ............................................................................................................ 18 4.5 Recommended Power-Up Sequence ........................................................................................... 18 4.5.1 Stand-Alone Mode ........................................................................................................... 18 4.5.2 Control Port Mode ............................................................................................................ 18 4.6 Popguard Transient Control ....................................................................................................... 18 4.6.1 Power-Up ......................................................................................................................... 18 4.6.2 Power-Down .................................................................................................................... 19 4.6.3 Discharge Time ................................................................................................................ 19 4.7 Mute Control ................................................................................................................................. 19 4.8 Grounding and Power Supply Arrangements ...............................................................................19 4.8.1 Capacitor Placement ........................................................................................................ 19 4.9 Control Port Interface ................................................................................................................... 20 4.9.1 MAP Auto Increment ........................................................................................................ 20 4.9.2 IC Mode .......................................................................................................................... 20 4.9.3 SPI Mode ......................................................................................................................... 21 4.10 Memory Address Pointer (MAP) ................................................................................................. 22 4.10.1 INCR (Auto Map Increment Enable) .............................................................................. 22 4.10.2 MAP (Memory Address Pointer) ....................................................................................22 5. REGISTER QUICK REFERENCE ....................................................................................................... 23 6. REGISTER DESCRIPTION ................................................................................................................. 24 6.1 Chip ID - Register 01h .................................................................................................................. 24 6.2 Mode Control 1 - Register 02h ..................................................................................................... 24 6.2.1 Digital Interface Format (DIF2:0) Bits 6-4 ........................................................................24 6.2.2 De-Emphasis Control (DEM1:0) Bits 3-2....................................................................... 24 6.2.3 Functional Mode (FM) Bits 1-0 ......................................................................................... 25 6.3 Volume Mixing and Inversion Control - Register 03h ................................................................... 25 6.3.1 Channel A Volume = Channel B Volume (VOLB=A) Bit 7 ............................................... 25 6.3.2 Invert Signal Polarity (Invert A) Bit 6 ............................................................................... 25 6.3.3 Invert Signal Polarity (Invert B) Bit 5 ............................................................................... 25 2 DS566F1