CS4234
4 In/5 Out CODEC with Programmable Class H Controller
DAC Features
System Features
2
Advanced multibit Delta–Sigma modulator
24-bit resolution
TDM, left justified, and I S serial inputs and outputs
Nondelayed low-latency path
Differential or single-ended outputs
-109 dB dynamic range (A-weighted)
-90 dB THD+N
Supports sample rates up to 96 kHz
Class H Controller Features
Can be used with any integrated Class AB amplifier
2 Vrms full-scale output into 3-k AC load
Rail-to-rail operation
IC or discrete amplifier solution.
Increases efficiency of Class AB amplifiers
Programmable group delay in 4-channel audio
Creates audio tracking reference signal for external
output path
switch-mode power supply
Internal envelope tracking of up to 32 channels
Input path for externally generated tracking signal
ADC Features
Advanced multibit Delta–Sigma modulator
24-bit resolution
Common Applications
Differential inputs
Discrete Class H automotive audio amplifiers
-105 dB dynamic range (A-weighted)
-88 dB THD+N
Automotive head units with internal Class H
amplifiers
2 Vrms full-scale input
Audio mixing consoles
Audio effects processors
VD
2.5 VDC
VA
5.0 VDC
-1 -2
2.5 V
LDO
Analog Supply
Gain
Select
Mode
Select
DC Offset
Gain / Volume
X
Tracking
SMPS
Enable
Full Scale Code
Master
Vol . Cntrl
Max
Detect
Envelope
Tracking
TPS
GAIN
X
X
Master Volume
Select
0 dB
Filter
Mute, Invert,
Noise Gate
DAC
Volume
Select
DAC &
Analog
Filters
Interpolation Filter
Sample & Hold
Multi-bit
Modulators
AOUT 5 (±)
(SMPS Control )
5th DAC
Input Advisory
AIN1 (±)
AIN2 (±)
AIN3 (±)
AIN4 (±)
AOUT1 (±)
AOUT2 (±)
AOUT3 (±)
AOUT4 (±)
Group
Delay
Master
Volume
Control
Channel Volume ,
Mute, Invert,
Noise Gate
DAC &
Analog
Filters
Multi-bit
ADC
Interpolation
Filter
Multi-bit
Modulators
0-500uS
Digital Filters
Low -Latency
Demux
Mute, Invert,
Noise Gate
Sample
& Hold
Serial Audio Interface
Control Port
Level Translator
Frame Sync
Clock / LRCK
Serial Clock
In / Out
I2C Control
Data
SDOUTx
SDIN 2
SDIN1
Master Clock In
INT
RST
VL
1.8 to 5.0 VDC
Copyright Cirrus Logic, Inc. 2014
OCT ‘14
DS899F2
(All Rights Reserved)
http://www.cirrus.com