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CS8421_10 Datasheet, PDF (1/36 Pages) Cirrus Logic – 32-bit, 192-kHz Asynchronous Sample Rate Converter | |||
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CS8421
32-bit, 192-kHz Asynchronous Sample Rate Converter
Features
ï´ 175 dB Dynamic Range
ï´ â140 dB THD+N
ï´ No Programming Required
ï´ No External Master Clock Required
ï´ Supports Sample Rates up to 211 kHz
ï´ Input/Output Sample Rate Ratios of 7.5:1 to 1:8
ï´ Master Clock Support for 128 x Fs, 256 x Fs,
384 x Fs, and 512 x Fs (Master Mode)
ï´ 16-, 20-, 24-, or 32-bit Data I/O
ï´ 32-bit Internal Signal Processing
ï´ Dither Automatically Applied and Scaled to
Output Resolution
ï´ Flexible 3-wire Serial Digital Audio Input and
Output Ports
ï´ Master and Slave Modes for Both Input and
Output
ï´ Bypass Mode
ï´ Time Division Multiplexing (TDM) Mode
ï´ Attenuates Clock Jitter
ï´ Multiple Device Outputs are Phase Matched
ï´ Linear Phase FIR Filter
ï´ Automatic Soft Mute/Unmute
ï´ +2.5 V Digital Supply (VD)
ï´ +3.3 V or 5.0 V Digital Interface (VL)
ï´ 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 âOrdering In-
formationâ 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 ï£ Cirrus Logic, Inc. 2010
(All Rights Reserved)
TDM_IN
SDOUT
OSCLK
OLRCK
SRC_UNLOCK
MCLK_OUT
May â10
DS641F4
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