Cirrus Logic CS4351 - Manual

Copyright
© Cirrus Logic, Inc. 2005
(All Rights Reserved) http://www.cirrus.com
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 k
Ω AC Load
! Digital Volume Control with Soft Ramp
– 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
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
“Ordering Information” on page 37 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.
PCM
Serial
Interface
Interpolation
Filter with
Volume Control
Internal Voltage
Reference
External
Mute
Control
DAC
erial Audio Input
Left and Right
Mute Controls
2 Vrms Line Level
Right Channel
Output
2 Vrms Line Level
Left Channel Outpu
Reset
8 V to 3.3V
DAC
Register/Hardware
Configuration
Le
ve
l T
ra
n
sl
a
to
r
dware or I 2 C/SPI
Control Data
Multibit
∆Σ Modulator
3.3 V
9 V to 12 V
Interpolation
Filter with
Volume Control
Amp
+
Filter
Amp
+
Filter
Auto Speed Mode
Detect
Multibit
∆Σ Modulator
DECEMBER '05
DS566F1
CS4351