CS4350
192 kHz Stereo DAC with Integrated PLL
Features
Advanced Multi-bit Delta-Sigma Architecture
109 dB Dynamic Range
-91 dB THD+N
24-Bit Conversion
Supports Audio Sample Rates Up to 192 kHz
Low-Latency Digital Filtering
Single-Ended or Differential Analog Output
Architecture
Integrated PLL Locks to Incoming Left-Right
Clock
– Eliminates the Need for External Master-
clock Routing
– Reduces Interference and Jitter Sensitivity
– No External Loop Filter Components
Required
Automatic Sample-Rate Range Detection
Popguard® Technology for Control of Clicks
and Pops
– Hardware Popguard Disable for Fast
Startups
Supports All Standard Serial Audio Formats
Including Time-Division Multiplexed (TDM)
+1.5 V to 5.0 V Logic Supplies for Serial Port
+3.3 V to 5.0 V Control Port Interface
Control Port Mode Features
SPI™ and I²C® Modes
ATAPI Mixing
Mute Control for Individual Channels
Digital Volume Control with Soft Ramp
– 127.5 dB Attenuation
– 1/2 dB Step Size
– Zero Crossing Click-Free Transitions
3.3 V to 5.0 V
Hardware or I2C/
SPI Control Data
Reset
1.5 V to 5.0 V
Serial Audio Input
LRCK
Recovered MCLK
3.3 V to 5.0 V
Register/
Hardware
Configuration
Interpolation
Filter with
Volume
Control
Multibit ΔΣ
Modulator
DAC
Amp
+
Filter
Left
Channel
Output
PCM
Serial
Interface
Interpolation
Filter with
Volume
Control
Multibit ΔΣ
Modulator
DAC
Amp
+
Filter
Right
Channel
Output
RMCK Phase Locked Loop
Internal Voltage
Reference
and Regulation
External
Mute
Control
Left and
Right Mute
Controls
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 2007
(All Rights Reserved)
JULY '07
DS691F1