CS4398
120 dB, 192 kHz Multi-Bit DAC with Volume Control
Features
Advanced Multi-bit Delta-Sigma Architecture
– 120 dB Dynamic Range
– -107 dB THD+N
– Low Clock Jitter Sensitivity
– Differential Analog Outputs
PCM input
– 102 dB of Stopband Attenuation
– Supports Sample Rates up to 192 kHz
– Accepts up to 24 bit Audio Data
– Supports All Industry Standard Audio
Interface Formats
– Selectable Digital Filter Response
– Volume Control with 1/2 dB Step Size and
Soft Ramp
– Flexible Channel Routing and Mixing
– Selectable De-Emphasis
Supports Stand-Alone or I²C/SPI
™
Configuration
Embedded Level Translators
– 1.8 V to 5 V Serial Audio Input
– 1.8 V to 5 V Control Data Input
3.3 V to 5 V
Direct Stream Digital (DSD)
– Dedicated DSD Input Pins
– On-Chip 50 kHz Filter to Meet Scarlet Book
SACD Recommendations
– Matched PCM and DSD Analog Output
Levels
– Non-Decimating Volume Control with
1/2 dB Step Size and Soft Ramp
– DSD Mute Detection
– Supports Phase-Modulated Inputs
– Optional Direct DSD Path to On-Chip
Switched Capacitor Filter
Control Output for External Muting
– Independent Left and Right Mute Controls
– Supports Auto Detection of Mute Output
Polarity
Typical Applications
– DVD Players
– SACD Players
– A/V Receivers
– Professional Audio Products
5V
1.8 V to 5 V
1.8 V to 5V
MUX
Hardware or I
2
C/SPI
Control Data
MUX
Register/Hardware
Configuration
Interpolation
Filter with
Volume Control
Multibit
∆Σ
Modulator
Switched
Capacitor
DAC and
Filter
Switched
Capacitor
DAC and
Filter
Level
Translator
Left
Differential
Output
Level Translator
PCM Input
PCM
Serial
Interface
Interpolation
Filter with
Volume Control
MUX
Multibit
∆Σ
Modulator
Right
Differential
Output
MUX
DSD Input
DSD
Interface
DSD Processor
-Volume control
-50kHz filter
Direct DSD
External
Mute
Control
Internal Voltage
Reference
Left and Right
Mute Controls
Copyright
©
Cirrus Logic, Inc. 2005
(All Rights Reserved)
JULY '05
DS568F1
CIRRUS [ CIRRUS LOGIC ]
