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CS5345 Dataheets PDF



Part Number CS5345
Manufacturers Cirrus Logic
Logo Cirrus Logic
Description 105 DB 24BIT 192 KHZ STEREO AUDIO ADC
Datasheet CS5345 DatasheetCS5345 Datasheet (PDF)

CS5345 104 dB, 24-Bit, 192 kHz Stereo Audio ADC A/D Features  Multi-Bit Delta Sigma Modulator  104 dB Dynamic Range  -95 dB THD+N  Stereo 6:1 Input Multiplexer  Programmable Gain Amplifier (PGA) – ± 12 dB Gain, 0.5 dB Step Size – Zero Crossing, Click-Free Transitions  Stereo Microphone Inputs – +32 dB Gain Stage – Low-Noise Bias Supply  Up to 192 kHz Sampling Rates  Selectable Serial Audio Interface Formats – Left-Justified up to 24-bit – I²S up to 24-bit  High-Pass Filter or DC Offse.

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CS5345 104 dB, 24-Bit, 192 kHz Stereo Audio ADC A/D Features  Multi-Bit Delta Sigma Modulator  104 dB Dynamic Range  -95 dB THD+N  Stereo 6:1 Input Multiplexer  Programmable Gain Amplifier (PGA) – ± 12 dB Gain, 0.5 dB Step Size – Zero Crossing, Click-Free Transitions  Stereo Microphone Inputs – +32 dB Gain Stage – Low-Noise Bias Supply  Up to 192 kHz Sampling Rates  Selectable Serial Audio Interface Formats – Left-Justified up to 24-bit – I²S up to 24-bit  High-Pass Filter or DC Offset Calibration System Features  Power-Down Mode  +3.3 V to +5 V Analog Power Supply, Nominal  +3.3 V to +5 V Digital Power Supply, Nominal  Direct Interface with 1.8 V to 5 V Logic Levels  Pin-Compatible with CS4245 General Description The CS5345 integrates an analog multiplexer, programmable gain amplifier, and stereo audio analog-to-digital converter. The CS5345 performs stereo analog-to-digital (A/D) conversion of up to 24-bit serial values at sample rates up to 192 kHz. A 6:1 stereo input multiplexer is included for selecting between line-level and microphone-level inputs. The microphone input path includes a +32 dB gain stage and a low-noise bias voltage supply. The PGA is available for line or microphone inputs and provides gain/attenuation of ± 12 dB in 0.5 dB steps. The output of the PGA is followed by an advanced 5thorder, multi-bit delta sigma modulator and digital filtering/decimation. Sampled data is transmitted by the serial audio interface at rates from 4 kHz to 192 kHz in either Slave or Master Mode. Integrated level translators allow easy interfacing between the CS5345 and other devices operating over a wide range of logic levels. The CS5345 is available in a 48-pin LQFP package in Commercial (-10° to +70° C) grade. The CDB5345 Customer Demonstration board is also available for device evaluation and implementation suggestions. Please refer to “Ordering Information” on page 42 for complete details. 1.8 V to 5 V I²C/SPI Control Data Interrupt Overflow Reset Serial Audio Output Level Translator Level Translator PCM Serial Interface 3.3 V to 5 V 3.3 V to 5 V Register Configuration High Pass Filter Low-Latency Anti-Alias Filter High Pass Filter Low-Latency Anti-Alias Filter Internal Voltage Reference Multibit Oversampling ADC Multibit Oversampling ADC PGA MUX PGA +32 dB +32 dB Left PGA Output Right PGA Output Stereo Input 1 Stereo Input 2 Stereo Input 3 Stereo Input 4 / Mic Input 1 & 2 Stereo Input 5 Stereo Input 6 http://www.cirrus.com Copyright  Cirrus Logic, Inc. 2012 (All Rights Reserved) AUG '12 DS658F4 CS5345 TABLE OF CONTENTS 1. PIN DESCRIPTIONS ......................................................................................................................... 5 2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 7 SPECIFIED OPERATING CONDITIONS ............................................................................................


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