CS4351
192 kHz Stereo DAC with 2 Vrms Line Out
Features
!
Multi-Bit Delta-Sigma Modulator
!
24-Bit Conversion
!
Up to 192 kHz Sample Rates
!
112 dB Dynamic Range
!
-100 dB THD+N
!
+3.3 V, +9 to 12 V, and VL Power Supplies
!
2 Vrms Output into 5 kΩ AC Load
!
Digital Volume Control with Soft Ramp
Description
The CS4351 is a complete stereo digital-to-analog sys-
tem including digital interpolation, fifth-order multi-bit
delta-sigma digital-to-analog conversion, digital de-em-
phasis, volume control, channel mixing, analog filtering,
and on-chip 2 Vrms line-level driver. The advantages of
this architecture include ideal differential linearity, no
distortion mechanisms due to resistor matching errors,
no linearity drift over time and temperature, high toler-
ance to clock jitter, and a minimal set of external
components.
The CS4351 is available in a 20-pin TSSOP package in
both Commercial (-10°C - +70°C) and Automotive
grades (-40°C to +85°C). The CDB4351 Customer
Demonstration board is also available for device evalu-
ation and implementation suggestions. Please see
for complete details.
These features are ideal for cost-sensitive, 2-channel
audio systems including DVD players, A/V receivers,
set-top boxes, digital TVs and VCRs, mini-component
systems, and mixing consoles.
–
–
–
119 dB Attenuation
1/2 dB Step Size
Zero Crossing Click-Free Transitions
!
ATAPI Mixing
!
Low Clock Jitter Sensitivity
!
Popguard
®
Technology for Control of Clicks
and Pops
8 V to 3.3V
3.3 V
9 V to 12 V
dware or I
2
C/SPI
Control Data
Register/Hardware
Configuration
Reset
Interpolation
Filter with
Volume Control
Multibit
∆Σ
Modulator
DAC
Level Translator
Amp
+
Filter
2 Vrms Line Level
Left C
hannel O
utpu
erial Audio Input
PCM
Serial
Interface
Interpolation
Filter with
Volume C
ontrol
Multibit
∆Σ
Modulator
DAC
Amp
+
Filter
2 Vrms Line Level
Right C
hannel
O
utput
Auto Speed Mode
Detect
Internal Voltage
Reference
E
xternal
Mute
C
ontrol
Left and Right
Mute C
ontrols
Copyright
©
Cirrus Logic, Inc. 2005
(All Rights Reserved)
DECEMBER '05
DS566F1
CIRRUS [ CIRRUS LOGIC ]
