CS4351
192 kHz Stereo DAC with 2 Vrms Line Out
Features
Description
! Multi-Bit Delta-Sigma Modulator
! 24-Bit Conversion
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.
! 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
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
“Ordering Information” on page 37 for complete details.
–
–
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119 dB Attenuation
1/2 dB Step Size
Zero Crossing Click-Free Transitions
! ATAPI Mixing
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.
! Low Clock Jitter Sensitivity
! Popguard® Technology for Control of Clicks
and Pops
9 V to 12 V
8V to 3.3V
3.3 V
dware or I2C/ SPI
Cont r ol Dat a
Register/Hardware
Configuration
Reset
Multibit
∆Σ Modulator
Amp
+
Interpolation
Fi l t er wi t h
Volume Control
2 Vrms Line Level
DAC
Left Channel Outpu
Filter
PCM
Serial
erial Audio Input
Interface
Interpolation
Fi l t er wi t h
Volume Control
2 Vrms Line Level
Right Channel
Output
Amp
+
Filter
Multibit
∆Σ Modulator
DAC
Auto Speed Mode
Detect
Ext er nal
Mute
Cont r ol
Left and Right
Mute Controls
Internal Voltage
Reference
Copyright © Cirrus Logic, Inc. 2005
DECEMBER '05
DS566F1
(All Rights Reserved)
http://www.cirrus.com
CIRRUS [ CIRRUS LOGIC ]
