CXA1720Q Datasheet, PDF (23/26 Pages) Sony Corporation – Read/Write Amplifier (with Built-in Filters) for FDDs

Write current vs. RW
10.0
5.0
1.0
1K
5K 10K
Rw (kΩ)
Vcc=5V
Ta=25˚C
IW=11.6/Rw (mA)
Rw (kΩ)
25
27
RW1
RW2
Vcc
Vcc
Normalized write compensation current vs.
Ambient temperature
1.05
1.00
Vcc=5V
NIWC=IWC/IWC (Ta=25˚C)
25 26
RWC1
27 28
RWC2
12k
RW1 4.3k
12k
RW2 _4.3k
Vcc
Vcc
0.95
–20
0
20
40
60
80
Ta-Ambient temperature (˚C)
Normalized Write compensation current vs.
Supply voltage
1.05
Ta=25˚C
NIWC=IWC/IWC (Vcc=5V)
1.00
25 26 27 28
RWC1
RWC2
12k
12k
RW1 4.3k RW2 4.3k
Vcc
Vcc
0.95
4.0
5.0
6.0
Vcc-Supply voltage (V)
—23—
CXA1720Q