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, analogto-digital conversion and anti-alias filtering, generating 24-bit values for both left and right inputs in serial form at sample rates up to 200 kHz per channel. 24-bit Conversion Supports All Audio Sample Rates Including 192 kHz The CS5342 uses a 5th-order, multi-bit Delta-Sigma modulator followed by digital filtering and decimation, which removes the need for an external anti-alias filter. 105 dB Dynamic Range at 5 V -98 dB THD+N 90 mW Power Consumption High-Pass Filter to Remove DC Offsets Analog/Digital Core Supplies from 3.3 V to 5 V Supports Logic Levels between 2.5 V and 5 V The CS5342 is available in a 16-pin TSSOP package in Commercial grade (-10° to 70° C). The CDB5342 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please refer to “Ordering Information” on page 21 for complete ordering information. The CS5342 is ideal for audio systems requiring wide dynamic range, negligible distortion and low noise, such as set-top boxes, DVD-karaoke players, DVD recorders, A/V receivers, and automotive applications. Low-Latency Digital Filter Auto-detect Mode Selection in Slave Mode Auto-Detect MCLK Divider Supports 384x MCLK/LRCK Ratios Single-Ended Analog Input Auto-detect MCLK Divider Low-Latency Digital Filters Master Clock Serial Port High-Pass Filter Internal Reference Voltages Slave Mode Auto-detect Single-Ended Analog Input High-Pass Filter Low-Latency Digital Filters Copyright © Cirrus Logic, Inc. 2006 (All Rights Reserved) Mode Configuration Reset

CS5342 1. CHARACTERISTICS AND SPECIFICATIONS (All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical performance characteristics and specifications are derived from measurements taken at typical supply voltages and TA = 25°C.) SPECIFIED OPERATING CONDITIONS (GND = 0 V, all voltages with respect to 0 V.) Parameter Analog Digital Logic Power Supplies (Note 2, 3) Ambient Operating Temperature Notes: 1. This part is specified at typical analog voltages of 3.3 V and 5.0 V. See “Analog Characteristics (CS5342-CZZ)” on page 5 for details. 2. In...

CS5342 ANALOG CHARACTERISTICS (CS5342-CZZ) Test conditions (unless otherwise specified): Input test signal is a 1 kHz sine wave; measurement bandwidth is 10 Hz to 20 kHz. Dynamic Performance for Commercial Grade Single-Speed Mode Dynamic Range Double-Speed Mode Quad-Speed Mode Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted Total Harmonic Distortion + Noise A-weighted unweighted 40 kHz bandwidth unweighted Total Harmonic Distortion + Noise A-weighted unweighted Total Harmonic Distortion + Noise Dynamic Range Interchannel Gain Mismatch Gain Error Gain Drift Dynamic Performance...

CS5342 DIGITAL FILTER CHARACTERISTICS Parameter (Note 7) Single-Speed Mode Passband Passband Ripple Stopband Stopband Attenuation Total Group Delay (Fs = Output Sample Rate) Double-Speed Mode Passband Passband Ripple Stopband Total Group Delay (Fs = Output Sample Rate) Stopband Attenuation Quad-Speed Mode (Note 2) Passband Passband Ripple Stopband Total Group Delay (Fs = Output Sample Rate) Stopband Attenuation High-Pass Filter Characteristics Frequency Response Phase Deviation Passband Ripple Filter Settling Time 7. Response is clock dependent and will scale with Fs. Note that the response plots...

Figure 2. Single-Speed Stopband Rejection (detail) Figure 1. Single-Speed Stopband Rejection Figure 3. Single-Speed Transition Band (detail) Figure 5. Double-Speed Stopband Rejection Figure 4. Single-Speed Passband Ripple Figure 6. Double-Speed Stopband Rejection (detail)

Figure 7. Double-Speed Transition Band (detail) Figure 8. Double-Speed Passband Ripple Figure 9. Quad-Speed Stopband Rejection Figure 10. Quad-Speed Stopband Rejection (detail) Figure 11. Quad-Speed Transition Band (detail) Figure 12. Quad-Speed Passband Ripple

CS5342 DC ELECTRICAL CHARACTERISTICS (GND = 0 V, all voltages with respect to 0 V. MCLK=18.432 MHz; Master Mode; refer to Note 2) Parameter Positive Analog Positive Digital Positive Logic Power Supply Current (Power-down Mode) (Note 8) Power Consumption (Normal Operation) (Normal Operation) (Power-Down Mode)(Note 8) Output Impedance Output Impedance Maximum allowable DC current source/sink Power Supply Current (Normal Operation) Power Supply Rejection Ratio (1 kHz) VQ Nominal Voltage Filt+ Nominal Voltage 8. Power-Down Mode is defined as RST = Low with all clocks and data lines held static. 9....

CS5342 SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT (Logic "0" = GND = 0 V; Logic "1" = VL, CL = 20 pF) Parameter MCLK Specifications MCLK Period MCLK Pulse Duty Cycle Master Mode SCLK falling to LRCK SCLK falling to SDOUT valid SCLK Duty Cycle Single-Speed Double-Speed Quad-Speed Slave Mode Single-Speed (Note 10) LRCK Duty Cycle SCLK Period SCLK Duty Cycle SDOUT valid before SCLK rising SDOUT valid after SCLK rising SCLK falling to LRCK edge Double-Speed (Note 10) LRCK Duty Cycle SCLK Period (Note 11) SCLK Duty Cycle SDOUT valid before SCLK rising SDOUT valid after SCLK rising SCLK falling...

LRCK input LRCK output SCLK input SCLK output Figure 13. Master Mode, Left-Justified SAI Figure 14. Slave Mode, Left-Justified SAI LRCK input LRCK output SCLK input SCLK output Figure 15. Master Mode, I²S SAI Figure 16. Slave Mode, I²S SAI

CS5342 2. PIN DESCRIPTION M0 MCLK VL SDOUT GND VD SCLK LRCK M0 M1 MCLK VL SDOUT GND VD SCLK RST AINL AINR VQ VA REFGND M1 FILT+ REFGND VA AINR VQ AINL RST Pin Description Mode Selection (Input) - Determines the operational mode of the device. Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters. Logic Power (Input) - Positive power for the digital input/output. Serial Audio Data Output (Output) - Output for two’s complement serial audio data. Ground (Input) - Ground reference. Must be connected to analog ground. Digital Power (Input) - Positive power supply for...