SSI34R3436-CV [TI]
SSI34R3436-CV;
| 型号： | SSI34R3436-CV |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | SSI34R3436-CV |
| 文件： | 总1页 (文件大小：29K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SSI 34R3436
+5/+12 V 1-Channel
TFH/MR Tape Drive Read/Write IC
February 1998
DESCRIPTION
FEATURES
The SSi 34R3436 is a BiCMOS monolithic integrated
circuit designed for use with one 2-terminal thin film
recording head and one MR sensing element. It
provides a low noise read amplifier and write driver
for the thin film head, a low noise read amplifier and
bias current for the MR element, and data protection
circuitry. Power supply fault protection is provided by
disabling the write current generator during power
sequencing. System write-to-read recovery time is
significantly improved by controlling the read channel
common mode output voltage shift in the write mode.
The SSI34R3436 provides the user with a serial port
controllable write-current and MR bias adjustment
feature. Fault conditions are indicated through the serial
port.
•
•
•
+5 V ±10% supply and +12 V ±10% supply
Low power 3 mA ICC (idle mode)
High Performance
- MR read mode gain = 100 V/V
- TFH read mode gain = 300 V/V
- Input noise = 1.1 nV√Hz max
- Input capacitance = 5 pF nom
- Write current range = 5.4-55 mA
•
•
•
•
Write unsafe detection
Power supply fault protection
Head short to ground protection
Increased write-mode head swing 8 Vp-p
diff (typical)
•
•
24-Pin SOL, VSOP package
The SSI 34R3436 requires both a +5 V and +12 V
power supply.
Serial port controllable write current and read
bias
•
•
Serial port controllable flip-flop
Head open or shorted detection
BLOCK DIAGRAM
PIN DIAGRAM
1
24
23
22
21
20
WDI
VCC2
DGND
HWX
HWY
HRX
N/C
HWX
READ
2
SDEN
SCLK
SDATA
R/W
HWY
PREAMP
3
WRITE
DRIVER
WDI
FLIP-FLOP
4
5
SSI 34R3436-CV
CS
6
19
18
17
16
15
14
13
RHS
CTRL
R/W
RHS
MRS
HRY
7
RDX
8
RDY
RDX
RDY
HRX
HRY
READ
PREAMP
READ
BUFFER
9
IMR
RBIAS
/VFAULT
/CS
10
11
12
AGND
VDD
MRS
IMR
WUS
VFAULT
VCC1
AGND
VDD
24-Lead VSOP
SCLK
DAC
DAC
SERIAL
PORT
SDEN
SDATA
CAUTION: Use handling procedures necessary
for a static sensitive component.
02/02/98 - rev.
1
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