CS5342 105 dB, 192 kHz, Multi-bit Audio A/D Converter Features General Description Advanced Multi-bit Delta-Sigma Architecture The CS5342 is a complete analog-to-digital converter for digital audio systems. It performs sampling, analog- 24-bit Conversion to-digital conversion and anti-alias filtering, generating 24-bit values for both left and right inputs in serial form Supports All Audio Sample Rates Including at sample rates up to 200 kHz per channel. 192 kHz The CS5342 uses a 5th-order, multi-bit Delta-Sigma 105 dB Dynamic Range at 5 V modulator followed by digital filtering and decimation, which removes the need for an external anti-alias filter. -98 dB THD+N The CS5342 is available in a 16-pin TSSOP package in 90 mW Power Consumption Commercial grade (-10 to 70 C). The CDB5342 Cus- High-Pass Filter to Remove DC Offsets tomer Demonstration board is also available for device evaluation and implementation suggestions. Please re- Analog/Digital Core Supplies from 3.3 V to 5 V fer to Ordering Information on page 21 for complete ordering information. Supports Logic Levels between 2.5 V and 5 V The CS5342 is ideal for audio systems requiring wide Low-Latency Digital Filter dynamic range, negligible distortion and low noise, such as set-top boxes, DVD-karaoke players, DVD record- Auto-detect Mode Selection in Slave Mode ers, A/V receivers, and automotive applications. Auto-Detect MCLK Divider Supports 384x MCLK/LRCK Ratios VA VD VL 3.3 V to 5 V 3.3 V to 5 V 2.5 V to 5 V Auto-detect 1.5 Master Clock Single-Ended Switch-Cap Low-Latency MCLK Divider AINL Analog Input ADC Digital Filters High-Pass Filter SCLK FILT+ Slave Mode Internal Auto-detect Reference LRCK VQ Voltages SDOUT M0 Mode M1 Configuration Single-Ended AINR Switch-Cap Low-Latency High-Pass Analog Input ADC Digital Filters Filter Reset Copyright Cirrus Logic, Inc. 2006 APRIL 06 (All Rights Reserved) CS5342 TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 4 SPECIFIED OPERATING CONDITIONS ............................................................................................... 4 ABSOLUTE MAXIMUM RATINGS ......................................................................................................... 4 ANALOG CHARACTERISTICS (CS5342-CZZ) ..................................................................................... 5 DIGITAL FILTER CHARACTERISTICS .................................................................................................6 DC ELECTRICAL CHARACTERISTICS ................................................................................................ 9 DIGITAL CHARACTERISTICS ............................................................................................................... 9 SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT ............................................................... 10 2. PIN DESCRIPTION .............................................................................................................................. 12 3. TYPICAL CONNECTION DIAGRAM ................................................................................................... 13 4. APPLICATIONS ................................................................................................................................... 14 4.1 Single-, Double-, and Quad-Speed Modes .....................................................................................14 4.2 Operation as Either a Clock Master or Slave ................................................................................. 14 4.2.1 Operation as a Clock Master ................................................................................................. 15 4.2.2 Operation as a Clock Slave ................................................................................................... 15 4.2.3 Master Clock ......................................................................................................................... 16 4.3 Serial Audio Interface ..................................................................................................................... 16 4.4 Power-Up Sequence ...................................................................................................................... 17 4.5 Analog Connections ....................................................................................................................... 17 4.6 Grounding and Power Supply Decoupling ......................................................................................17 4.7 Synchronization of Multiple Devices ............................................................................................... 17 4.8 Capacitor Size on the Reference Pin (FILT+) ................................................................................17 5. PARAMETER DEFINITIONS ................................................................................................................ 19 6. PACKAGE DIMENSIONS ................................................................................................................... 20 THERMAL CHARACTERISTICS .......................................................................................................... 20 7. ORDERING INFORMATION ................................................................................................................ 21 8. REVISION HISTORY ............................................................................................................................ 21 LIST OF FIGURES Figure 1.Single-Speed Stopband Rejection ................................................................................................ 7 Figure 2.Single-Speed Stopband Rejection (detail) .................................................................................... 7 Figure 3.Single-Speed Transition Band (detail) .......................................................................................... 7 Figure 4.Single-Speed Passband Ripple .................................................................................................... 7 Figure 5.Double-Speed Stopband Rejection ............................................................................................... 7 Figure 6.Double-Speed Stopband Rejection (detail) ................................................................................... 7 Figure 7.Double-Speed Transition Band (detail) ......................................................................................... 8 Figure 8.Double-Speed Passband Ripple ................................................................................................... 8 Figure 9.Quad-Speed Stopband Rejection ................................................................................................. 8 Figure 10.Quad-Speed Stopband Rejection (detail) ................................................................................... 8 Figure 11.Quad-Speed Transition Band (detail) ......................................................................................... 8 Figure 12.Quad-Speed Passband Ripple ................................................................................................... 8 Figure 13.Master Mode, Left-Justified SAI ................................................................................................ 11 Figure 14.Slave Mode, Left-Justified SAI .................................................................................................. 11 Figure 15.Master Mode, IS SAI ................................................................................................................ 11 Figure 16.Slave Mode, IS SAI .................................................................................................................. 11 Figure 17.Typical Connection Diagram ..................................................................................................... 13 Figure 18.CS5342 Master Mode Clocking ................................................................................................ 15 Figure 19.Left-Justified Serial Audio Interface .......................................................................................... 16 Figure 20.IS Serial Audio Interface .......................................................................................................... 16 Figure 21.CS5342 Recommended Analog Input Buffer ............................................................................ 17 Figure 22.CS5342 THD+N versus Frequency .......................................................................................... 18 2 DS608F1