CS4245 データシートの表示（PDF） - Cirrus Logic
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CS4245 Datasheet PDF : 57 Pages
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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
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