CS4245_07 Datasheet, PDF (1/57 Pages) Cirrus Logic – 104 dB, 24-Bit, 192 kHz Stereo Audio CODEC

CS4245
104 dB, 24-Bit, 192 kHz Stereo Audio CODEC
D/A Features
 Multi-bit Delta Sigma Modulator
 104 dB Dynamic Range
 -90 dB THD+N
 Up to 192 kHz Sampling Rates
 Single-Ended Analog Architecture
 Volume Control with Soft Ramp
– 0.5 dB Step Size
– Zero Crossing, Click-Free Transitions
 Popguard^® Technology
– Minimizes the Effects of Output Transients
 Filtered Line-Level Outputs
 Selectable Serial Audio Interface Formats
– Left-Justified up to 24-bit
– I²S up to 24-bit
– Right-Justified 16-, 18-, 20-, and 24-bit
 Selectable 50/15 µs De-Emphasis
 Control Output for External Muting
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
1.8 V to 5 V
Serial
Audio
Input
I²C/SPI
Control Data
Interrupt
ADC Overflow
Reset
Serial
Audio
Output
3.3 V to 5 V
3.3 V to 5 V
Volume
Control
Interpolation
Filter
Multibit
ΔΣ Modulator
Volume
Control
Interpolation
Filter
Multibit
ΔΣ Modulator
Switched Capacitor
DAC and Filter
Switched Capacitor
DAC and Filter
Register Configuration
Internal Voltage
Reference
Mute
Control
MUX
High Pass
Filter
Low-Latency
Anti-Alias Filter
High Pass
Filter
Low-Latency
Anti-Alias Filter
Multibit
Oversampling
ADC
Multibit
Oversampling
ADC
PGA
MUX
PGA
+32 dB
+32 dB
Left DAC Output
Mute Control
Right DAC Output
Left Aux Output
Right Aux Output
Stereo Input 1
Stereo Input 2
Stereo Input 3
Stereo Input 4 /
Mic Input 1 & 2
Stereo Input 5
Stereo Input 6
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Copyright © Cirrus Logic, Inc. 2007
(All Rights Reserved)
AUGUST '07
DS656F2