Cirrus Logic CS4398 - Manual

Copyright © Cirrus Logic, Inc. 2005
(All Rights Reserved) http://www.cirrus.com
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
 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
PCM
Serial
Interface
Multibit
∆Σ Modulator
Interpolation
Filter with
Volume Control
Internal Voltage
Reference
External
Mute
Control
Switched
Capacitor
DAC and
Filter
DSD
Interface
PCM Input
Left and Right
Mute Controls
Right
Differential
Output
Left
Differential
Output
DSD Input
DSD Processor
1.8 V to 5V
1.8 V to 5 V
-Volume control
-50kHz filter
Switched
Capacitor
DAC and
Filter
MU
X
Direct DSD
Lev
el
T
rans
lat
or
Le
v
e
l
Tr
a
n
s
la
to
r
Hardware or I 2 C/SPI
Control Data
MUX
Multibit
∆Σ Modulator
Interpolation
Filter with
Volume Control
MUX
MUX
3.3 V to 5 V 5 V
Register/Hardware
Configuration
JULY '05
DS568F1
CS4398