cxa1720q Sony Electronics, cxa1720q Datasheet - Page 16

• Manufacturer Part Number: cxa1720q
• Description: Read/write Amplifier With Built-in Filters For Fdds
• Manufacturer: Sony Electronics

Application Circuit (for 1M/2M devices)
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
D.GND
R
R
W/C 1COMP
E0
E1
R
R
W1
W2
W/C 1SET
POWER
ERASE
ERASE
OUT 0
COMP
OUT 1
SAVE
W/C 2
W/C 2
SET
25
26
27
28
29
30
31
32
POWER
24
ON
1
HEAD
0A
WRITE
MONITOR
DATA
23
POWER
2
DRIVER
DRIVER
ERASE
HEAD
0B
WRITE
READ
DATA
22
3
HEAD
1A
CURRENT
WRITE
21
4
PREAMP
HEAD
1B
—16—
CONTROL
LOGIC
WRITE
GATE
20
5
HIGH
GAIN
PREAMP
ERASE
GATE
19
6
OUT
DIFF+LPF
SIDE 1
FILTER
18
(BPF)
7
VREF
C
0.1µ
REF
CONTROL
FILTER
17
8
FILTER
OUT A
16
15
14
13
12
11
10
9
FILTER
OUT B
COMP
IN B
COMP
IN A
A.GND
MMVA
FILTER
SET
HIGH
DENSITY
Vcc
3300P
C
B
27k
3.2k
R
R
A
F
C
3300P
A
CXA1720Q
5V