CS8421-CNZ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
'CS8421-CNZ' PDF : 36 Pages View PDF
CS8421
32-bit, 192-kHz Asynchronous Sample Rate Converter
Features
175 dB Dynamic Range
–140 dB THD+N
No Programming Required
No External Master Clock Required
Supports Sample Rates up to 211 kHz
Input/Output Sample Rate Ratios of 7.5:1 to 1:8
Master Clock Support for 128 x Fs, 256 x Fs,
384 x Fs, and 512 x Fs (Master Mode)
16-, 20-, 24-, or 32-bit Data I/O
32-bit Internal Signal Processing
Dither Automatically Applied and Scaled to
Output Resolution
Flexible 3-wire Serial Digital Audio Input and
Output Ports
Master and Slave Modes for Both Input and
Output
Bypass Mode
Time Division Multiplexing (TDM) Mode
Attenuates Clock Jitter
Multiple Device Outputs are Phase Matched
Linear Phase FIR Filter
Automatic Soft Mute/Unmute
+2.5 V Digital Supply (VD)
+3.3 V or 5.0 V Digital Interface (VL)
Space-saving 20-pin TSSOP and QFN
Packages
The CS8421 supports sample rates up to 211 kHz and
is available in 20-pin TSSOP and QFN packages in both
Commercial (-10° to +70° C) a nd Automo tive ( -40° to
+85°C) g rades. Th e CDB842 1 Cu stomer Demonstra-
tion b oard is a lso availa ble for d evice evalu ation and
implementation suggestions. Please see “Ordering In-
formation” on page 36 for complete details.
RST
Level Translators
BYPASS
SDIN
ISCLK
ILRCK
Serial
Audio
Data
Input
Sync Info
Time
Varying
Digital
Filters
Data
Sync Info
MS_SEL
SAIF
SAOF
Serial
Port
Mode
Decoder
Digital
PLL
3.3 V or 5.0 V (VL)
2.5 V (VD) GND
Serial
Data Audio
Output
Clock
Generator
XTI XTO
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2010
(All Rights Reserved)
TDM_IN
SDOUT
OSCLK
OLRCK
SRC_UNLOCK
MCLK_OUT
May ‘10
DS641F4
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