Cirrus Logic CS4349 - Manual

Copyright  Cirrus Logic, Inc. 2013
(All Rights Reserved)
http://www.cirrus.com
192-kHz DAC with Volume Control and 1 Vrms @ 3.3 V
Features
 Advanced multibit delta–sigma architecture
 101 dB dynamic range
 -91 dB THD+N at 5.0 V
 -84 dB THD+N at 3.3 V
 24-bit conversion
 Supports audio sample rates up to 192 kHz
 Low-latency digital filtering
 Single-ended analog output architecture
 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)
 +3.3 V or +5.0 V analog supply
 +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
PCM
Serial
Interface
Serial Audio Input
Right
Channel
Output
Left
Channel
Output
Reset
3.3 V to 5 V
Register/
Hardware
Configuration Hardware or I 2 C/
SPI Control Data
1.5 V to 5 V
Internal Voltage
Reference
and Regulation
Interpolation
Filter with
Volume
Control
Interpolation
Filter with
Volume
Control
Multibit 
Modulator
Multibit

Modulator
Le
ve
l T
ransla
tor
Lev
el Trans
la
to
r
Amp
+
Filter
Amp
+
Filter
Left and
Right Mute
Controls External
Mute
Control
DAC
DAC
3.3 V to 5 V
APR ‘13
DS782F2
CS4349