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Sony Semiconductor Electronic Components Datasheet

CXA3188N Datasheet

2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

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CXA3188N
2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive
For the availability of this product, please contact the sales office.
Description
The CXA3188N is a Read/Write Amplifier for the
thin film head of hard disk drive and designed to
handle up to 2 channel heads.
16 pin SSOP (Plastic)
Features
Operate on single +5 V power supply
Low power consumption
Read : 90 mW
Write : 115 mW + IW × 5
Idle : 8 mW
Designed for two terminal thin-film or MIG heads.
Read amplifier emitter follower output featuring
200 times gain(typ).
Differential input capacitance for Read : 6pF (typ)
Input noise : 0.47 nV / Hz (typ)
Write current range : 10 to 20 mA
Differential Head voltage swing : 9 Vp-p (typ)
Differential P-ECL write data input.
Built-in write unsafe detection circuit.
Built-in Servo write function.
Read data outputs are high impedance in write
mode.
Unselected head voltage is high impedance.
Self switching damping resistor 380 .
Built-in supply voltage monitor circuit prohibits
incorrect write during power on or abnormal
voltage.
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC 6 V
Operating temperature Topr –20 to +70 °C
Storage temperature Tstg –55 to +150 °C
Allowable power dissipation (on board)
PD 760 mW
Write current
IW 22 mA
WUS/SE pin input current
ISEH 15 mA
Operating Conditions
Supply voltage
VCC
5±0.5
V
Function
Read, Write and Write unsafe detection for HDD,
power supply ON/OFF detection.
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—
E98128-TE


Sony Semiconductor Electronic Components Datasheet

CXA3188N Datasheet

2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

No Preview Available !

Block Diagram and Pin Configuration
GND 1
H0X 2
H0Y 3
DRIVER
AMP
H1X 4
H1Y 5
DRIVER
AMP
VCC 6
NC 7
WUS/SE 8
POWER
ON/OFF
DETECTOR
WRITE
UNSAFE
DETECTOR
CXA3188N
MODE
CONTROL
16 XCS
15 R/W
WRITE
CURRENT
SOURCE
14 WC
AMP
HEAD
SELECT
13 RDY
12 RDX
11 HS
WD BUF
10 WDX
9 WDY
—2—


Part Number CXA3188N
Description 2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive
Maker Sony Corporation
Total Page 16 Pages
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