SSI34P3211 [TI]
SSI34P3211;
TEXAS INSTRUMENTS 
SSI 34P3211
Read Channel for
Tape Storage
November 1998
DESCRIPTION
FEATURES
The SSI 34P3211 is a high performance BiCMOS
single chip read channel IC that contains all the
functions needed to implement zoned recording for
high density tape storage applications. Functional
blocks include the pulse detector, programmable filter,
time base generator, and data synchronizer. VCO
range of 0.6 MHz to 13 MHz is selectable through the
serial port.
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Complete zoned recording application support
VCO range: 0.6 MHz to 13 MHz selectable
through the serial port
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Supports 1,7 RLL, MFM, FM, and GCR
Encoding Format
Fast attack/decay modes for rapid AGC
recovery
Dual rate charge pump for fast transient
recovery
Programmable functions of the SSI 34P3211 device
are controlled through a bi-directional serial port and
banks of internal registers. This allows zoned recording
applications to be supported without changing external
component values from zone to zone.
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Programmable cutoff frequency of 0.4 to 4 MHz
Tracking Threshold for rapid LEVEL discharge
Time base generator with better than 1%
frequency resolution
The SSI 34P3211 utilizes an advanced BiCMOS
process technology along with advanced circuit design
techniques which result in a high performance device
with low power consumption. The SSI 34P3211
supports a sleep mode for minimal power dissipation
in non-operational periods.
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Fast acquisition phase lock loop with zero
phase restart technique
Fully integrated data synchronizer with
programmable window shift control
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Programmable write precompensation
Write equalization
The SSI 34P3211 is available in a 64-Lead TQFP
package.
Write current DAC
Bi-directional serial port for register access
Register programmable power management
(sleep mode < 5 mW)
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Low Operating Power (500 mW typical @ 5 V)
11/16/98 - rev.
1
SSI 34P3211
Read Channel for
Tape Storage
BLOCK DIAGRAM
RTN4
EWDI
RTH
EWDO
SDEN
SCLK
SDATA
RRC
DFLT
DFLT0
DFLT1
RDIO
SDO
CP
CN
DN
DP
FNN
FNP
TFLT
FDN
FDP
TFLT0
TFLT1
FIP
FIN
AON
AOP
FREF
RR
2
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