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Sony Semiconductor Electronic Components Datasheet

CXA3239TN Datasheet

6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive

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CXA3238TN/CXA3239TN
6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive
For the availability of this product, please contact the sales office.
Description
The CXA3238TN/CXA3239TN is a Read/Write
38 pin TSSOP (Plastic)
amplifier for GMR-Ind (Giant Magneto Resistive-
Inductive) heads used in hard disk drives, and is
capable of supporting up to six channels.
Features
+5 V and –3 V power supply.
Current bias voltage sense type.
Drives up to six heads (CXA3238TN)
Drives up to four heads (CXA3239TN)
Low power 180 mW at Read
Differential read amplifier gain ; ×140/190
(RMR=50 )
Input noise of 0.77 nV/ Hz (typ.),
RMR=50 , IB=6.0 mA.
Recovery time write to read ; 300 nsec. (typ.)
Write data is triggered by differential P-ECL signal.
Servo bank write. (All channels)
Write unsafe detection circuit.
Serial port
Head selection
MR bias
Write current
Applications
Hard disk drives with GMR-Ind heads.
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC –0.3 to +6 V
Supply voltage
VEE –4.5 to +0.3 V
Digital input voltage
Vdi –0.3 to VCC+0.3 V
Operating temperature Topr –20 to +70 °C
Storage temperature Tstg –55 to +150 °C
Allowable power dissipation
TSSOP38
PD
1000 mW
Operating Conditions
Supply voltage
MR bias voltage
Bias current
Write current
VCC +4.4 to +5.5 V
VEE –4.0 to –2.6 V
VMR –300 to +300 mV
IB 3 to 8 mA
IW 15 to 45 mA
Structure
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E98346C8Y


Sony Semiconductor Electronic Components Datasheet

CXA3239TN Datasheet

6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive

No Preview Available !

Block Diagram and Pin Configuration
CXA3238TN
RS 1
SCLK 2
SDATA 3
WDX 4
WDY 5
VCC 6
GND 7
RDY 8
RDX 9
FLT/SE/BHV 10
R/XW 11
SDEN 12
CAP 13
VEE 14
W0X 15
W0Y 16
R0X 17
R0Y 18
W1X 19
Serial Interface
WD BUF
Bias
current
source
Write
current
source
AMP
DRIVER
AMP
CXA3238TN/CXA3239TN
AMP
DRIVER
DRIVER
AMP
AMP
DRIVER
DRIVER
AMP
AMP
DRIVER
38 R5Y
37 R5X
36 W5Y
35 W5X
34 W4X
33 W4Y
32 R4X
31 R4Y
30 R3Y
29 R3X
28 W3Y
27 W3X
26 W2X
25 W2Y
24 R2X
23 R2Y
22 R1Y
21 R1X
20 W1Y
—2—


Part Number CXA3239TN
Description 6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive
Maker Sony Corporation
Total Page 27 Pages
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Sony Corporation





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