CS4265
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
A/D Features
Multi-Bit Delta Sigma Modulator
104 dB Dynamic Range
-95 dB THD+N
Stereo 2:1 Input Multiplexer
Programmable Gain Amplifier (PGA)
– ± 12 dB Gain, 0.5 dB Step Size
– Zero Crossing, Click-Free Transitions
Pseudo-Differential Stereo Line Inputs
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
3.3 V to 5 V
3.3 V to 5 V
Level Translator
Serial
Audio
Input
Serial
Audio
Output
Volume
Control
Volume
Control
Interpolation
Filter
Interpolation
Filter
Multibit
ΔΣ
Modulator
Multibit
ΔΣ
Modulator
Switched Capacitor
DAC and Filter
Left DAC Output
Mute
Control
Mute Control
Right DAC Output
PCM Serial Interface / Loopback
Switched Capacitor
DAC and Filter
Register Configuration
IEC60958-3 Transmitter
Internal Voltage
Reference
High Pass
Filter
Low-Latency
Anti-Alias Filter
Multibit
Oversampling
ADC
Multibit
Oversampling
ADC
Mic Bias
Transmitter Output
Microphone Bias
I C Control
Data
Level Translator
2
PGA
MUX
+32 dB
Reset
Mic Input
1&2
Stereo
Line Input
+32 dB
High Pass
Filter
Low-Latency
Anti-Alias Filter
PGA
Copyright
©
Cirrus Logic, Inc. 2007
(All Rights Reserved)
AUGUST '07
DS657F2
CIRRUS [ CIRRUS LOGIC ]
