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CS5351

Product catalog summary

Overview: The CS5351 is a high-performance analog-to-digital converter (ADC) designed for digital audio systems. It features a multi-bit delta-sigma architecture, providing 24-bit conversion with a dynamic range of 108 dB and a total harmonic distortion plus noise (THD+N) of -98 dB. The device supports system sampling rates up to 192 kHz and consumes 135 mW of power.

Key Features:

Advanced multi-bit delta-sigma architecture
24-bit conversion with 108 dB dynamic range
-98 dB THD+N
Supports sampling rates up to 192 kHz
135 mW power consumption
High-pass filter and DC offset calibration
Logic level support between 5 and 2.5 V
Single-ended analog inputs and overflow detection
Pin compatible with CS5361

Applications: The CS5351 is suitable for audio systems requiring wide dynamic range and low noise, such as A/V receivers, DVD-R, CD-R, digital mixing consoles, and effects processors.

Specifications:

Operating temperature range: -10°C to 70°C for commercial use, -40°C to 85°C for automotive use
Analog characteristics include dynamic range and THD+N across different modes (single, double, and quad-speed)
Digital filter characteristics include passband, stopband, and group delay specifications

Operational Modes:

Slave and master modes for system clocking
Power-up sequence and analog connections guidelines
High-pass filter and DC offset calibration procedures
Overflow detection and synchronization of multiple devices

Figures and Tables: The document includes figures illustrating stopband rejection, transition bands, and passband ripple for different speed modes, as well as tables detailing mode control and clock ratios.

DC Electrical Characteristics: The document outlines the power supply current and power consumption for both normal and power-down modes. It specifies the power supply rejection ratio and nominal voltages for VQ and FILT+.

Digital Characteristics: It details the input and output voltage levels, current sink capabilities, and input leakage currents for various pins.

Thermal Characteristics: The document provides allowable junction temperatures and thermal impedance values for different PCB configurations.

Switching Characteristics: The document describes the output sample rates for single, double, and quad-speed modes, along with timing specifications for master and slave modes.

Pin Descriptions: Each pin's function is described, including reset, master/slave mode selection, clock inputs/outputs, power supply inputs, and audio data outputs.

Typical Connection Diagram: A schematic is provided showing the recommended connections for the CS5351, including power supply, clock, and audio data lines.

Applications: The document discusses operational modes, system clocking, power-up sequences, analog connections, high-pass filter usage, overflow detection, grounding, and power supply decoupling. It also covers synchronization of multiple devices.

Parameter Definitions: Definitions for dynamic range and other performance metrics are provided, emphasizing the importance of signal-to-noise ratio measurements.

Specifications: Total Harmonic Distortion + Noise is measured as the ratio of the rms value of the signal to the rms sum of all other spectral components over a specified bandwidth (10 Hz to 20 kHz), expressed in decibels. Frequency Response measures amplitude response variation from 10 Hz to 20 kHz relative to 1 kHz. Interchannel Isolation and Gain Mismatch are measured in decibels, indicating crosstalk and gain differences between channels. Gain Error and Gain Drift are deviations in output and changes with temperature, respectively. Offset Error is the deviation of mid-scale transition from the ideal, measured in mV.

Package Dimensions: Dimensions for the 24L SOIC and 24L TSSOP packages are provided in both inches and millimeters, with specific notes on measurement conditions and allowances for mold flash and dambar protrusion.

Revision History: Updates include improvements in Gain Error specification, changes in power consumption and input buffer topology, and extensions of maximum Fs in various speed modes. Timing specifications have been replaced with duty cycle specifications.

Important Notice: Cirrus Logic provides this information "AS IS" without warranty and advises verification of current information before use. The document outlines the risks associated with using Cirrus products in critical applications and disclaims liability for such uses.

Catalog excerpts

CS5351 108 dB, 192 kHz, Multi-bit Audio A/D Converter Features General Description Advanced Multi-bit Delta-Sigma Architecture 24-bit Conversion 108 dB Dynamic Range The CS5351 is a complete analog-to-digital converter for digital audio systems. It performs sampling, analogto-digital conversion, and anti-alias filtering. The device generates 24-bit values for both left and right inputs in serial form at sample rates up to 192 kHz per channel. The CS5351 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. The ADC uses a differential architecture which provides excellent noise rejection. -98 dB THD+N System Sampling Rates up to 192 kHz 135 mW Power Consumption The CS5351 is ideal for audio systems requiring wide dynamic range, negligible distortion, and low noise. Such applications include A/V receivers, DVD-R, CD-R, digital mixing consoles, and effects processors. High-Pass Filter and DC Offset Calibration Supports Logic Levels Between 5 and 2.5 V ORDERING INFORMATION Single-Ended Analog Inputs CS5351-KZZ, Lead Free -10° to 70°C 24-pin TSSOP Overflow Detection Evaluation Board LRCK SDOUT Serial Output Interface Voltage Reference Digital Decimation Filter High Pass Filter Digital Decimation Filter High Pass Filter Copyright © Cirrus Logic, Inc. 2007 (All Rights Reserved)

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CS5351 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 Positive Analog Positive Digital Positive Logic Commercial (-KSZ/-KZZ) Automotive (-DZZ) Ambient Operating Temperature ABSOLUTE MAXIMUM RATINGS (GND = 0 V, All voltages with respect to ground.) (Note 1) Parameter Analog Logic Digital...

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CS5351 ANALOG CHARACTERISTICS (CS5351-KSZ/KZZ) (Test conditions (unless otherwise specified): Input test signal is a 1 kHz sine wave; measurement bandwidth is 10 Hz to 20 kHz.) Parameter Single-Speed Mode Dynamic Range A-weighted unweighted Total Harmonic Distortion + Noise (Note 4) -1 dB -20 dB -60 dB Double-Speed Mode Fs = 96 kHz Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted Total Harmonic Distortion + Noise (Note 4) -1 dB -20 dB -60 dB 40 kHz bandwidth -1 dB Quad-Speed Mode Fs = 192 kHz Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted Total Harmonic Distortion...

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CS5351 ANALOG CHARACTERISTICS (CS5351-DZZ) (Test conditions (unless otherwise specified): Input test signal is a 1 kHz sine wave; measurement bandwidth is 10 Hz to 20 kHz.) Parameter Single-Speed Mode Dynamic Range A-weighted unweighted (Note 4) -1 dB -20 dB -60 dB Total Harmonic Distortion + Noise Double-Speed Mode Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted Total Harmonic Distortion + Noise (Note 4) -1 dB -20 dB -60 dB 40 kHz bandwidth -1 dB Quad-Speed Mode Fs = 192 kHz Dynamic Range A-weighted unweighted 40 kHz bandwidth unweighted Total Harmonic Distortion + Noise (Note...

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CS5351 DIGITAL FILTER CHARACTERISTICS Parameter Single-Speed Mode (2 kHz to 51 kHz sample rates) Passband Passband Ripple Stopband Stopband Attenuation Total Group Delay (Fs = Output Sample Rate) Interchannel Phase Deviation Double-Speed Mode (50 kHz to 102 kHz sample rates) Passband Passband Ripple Stopband Total Group Delay (Fs = Output Sample Rate) Stopband Attenuation Interchannel Phase Deviation Quad-Speed Mode (100 kHz to 204 kHz sample rates) Passband Passband Ripple Stopband Total Group Delay (Fs = Output Sample Rate) Stopband Attenuation Interchannel Phase Deviation High Pass Filter...

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

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

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CS5351 DC ELECTRICAL CHARACTERISTICS (GND = 0 V, all voltages with respect to ground. MCLK=12.288 MHz; Master Mode) Parameter Power Supply Current (Normal Operation) Power Supply Current (Power-Down Mode) (Note 7) Power Consumption (Normal Operation) Power Supply Rejection Ratio (1 kHz) Filt+ Nominal Voltage Output Impedance Maximum allowable DC current source/sink Output Impedance Maximum allowable DC current source/sink Notes: 7. Power Down Mode is defined as RST = Low with all clocks and data lines held static. 8. Valid with the recommended capacitor values on FILT+ and VQ as shown in the...

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CS5351 SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT (Logic "0" = GND = 0 V; Logic "1" = VL, CL = 20 pF) Parameter OVFL to LRCK edge setup time OVFL to LRCK edge hold time Output Sample Rate Single-Speed Mode Double-Speed Mode Quad-Speed Mode OVFL time-out on overrange condition Fs = 44.1, 88.2, 176.4 kHz Fs = 48, 96, 192 kHz MCLK Specifications MCLK Period MCLK Pulse Duty Cycle Master Mode SCLK falling to LRCK SCLK falling to SDOUT valid SCLK Duty Cycle Slave Mode Single-Speed Output Sample Rate SCLK Period LRCK Duty Cycle SCLK Duty Cycle SCLK falling to SDOUT valid SCLK falling to LRCK edge...

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SCLK output tmslr LRCK input LRCK output Figure 13. Master Mode, Left-Justified SAI Figure 14. Slave Mode, Left-Justified SAI SCLK input SCLK input tsclkw t slrd LRCK input t slrd LRCK input Figure 15. Master Mode, I²S SAI Figure 16. Slave Mode, I²S SAI Figure 17. OVFL Output Timing

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Left Channel Right Channel SCLK SDATA Figure 18. Left-Justified Serial Audio Interface Left Channel Right Channel SCLK SDATA Figure 19. I²S Serial Audio Interface Figure 20. OVFL Output Timing, I²S Format Figure 21. OVFL Output Timing, Left-Justified Format

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CS5351

CS5351

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