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Sony Semiconductor Electronic Components Datasheet

CXA3092N Datasheet

4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

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CXA3092N pdf
CXA3092N
4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive
For the availability of this product, please contact the sales office.
Description
The CXA3092N is a Read/Write Amplifier for the
thin film head of hard disk drive and designed to
handle up to 4 channel heads.
20 pin SSOP (Plastic)
Features
Operate on single +5 V power supply
Low power consumption
Read : 85 mW
Write : 115 mW + IW ×5
Idle : 8 mW
Designed for two terminal thin-film or MIG heads
Read amplifier emitter follower output featuring
325 times gain (typ).
Differential input capacitance for Read : 6pF (typ)
Input noise : 0.47 nV / Hz (typ)
Write current range : 5 to 15 mA
Differential Head voltage swing : 6.8 Vp-p (typ)
Differential P-ECL write data input
Built-in write unsafe detection circuit.
Built-in Servo write function (2/4 ch).
Built-in IC protection circuit for short of head to
GND.
Read data outputs are high impedance in write
mode.
Unselected head voltage is GND potential.
Built-in supply voltage monitor circuit prohibits
incorrect write during power on or abnormal
voltage.
Self switching damping resistance (RD = 350 ).
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC 6 V
Write current
IW 20 mAo-p
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °C
Allowable power dissipation
PD 800 mW
WUS/SE pin input current
ISEH 15 mA
Recommended Operating Conditions
Supply voltage
VCC 5.0 V±10 %
Write current
IW 5 to 15 mAo-p
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—
E96713-TE


Sony Semiconductor Electronic Components Datasheet

CXA3092N Datasheet

4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

No Preview Available !

CXA3092N pdf
Block Diagram and Pin Configuration
GND 1
H0X 2
H0Y 3
DRIVER
AMP
H1X 4
H1Y 5
DRIVER
AMP
H2X 6
H2Y 7
DRIVER
AMP
H3X 8
H3Y 9
DRIVER
AMP
VCC 10
POWER
ON/OFF
DETECTOR
CXA3092N
MODE
CONTROL
20 XCS
19 R/W
WRITE
CURRENT
SOURCE
AMP
18 WC
17 RDY
16 RDX
HEAD
SELECT
15 HS0
14 HS1
IC
PROTECTOR
13 WDX
12 WDY
WRITE
UNSAFE
DETECTOR
11 WUS/SE
—2—


Part Number CXA3092N
Description 4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive
Maker Sony Corporation
Total Page 18 Pages
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CXA3092N pdf
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