cxa1720q Sony Electronics, cxa1720q Datasheet - Page 8

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

Read System
Pre-amplifier output offset voltage
(vs. VREF)
Pre-amplifier output voltage
amplitude
Filter differential output offset
voltage
Filter differential output voltage
amplitude
Time domain filter monostable
multivibrator No. 1 pulse width
precision
Time domain filter monostable
multivibrator No. 2 pulse width
(fixed)
Read data output low voltage
Read data output high voltage
Read data output
Read data output
Peak shift
When SW4 = a: Vi = 60 mVp-p
When SW4 = b: Vi = 30 mVp-p
Read data output between 0.5 V to 2.4 V
For Vi = 0.25 mVp-p to 5m Vp-p: SW4 = b (pre-amplifier voltage gain: 46 dB)
For Vi = 0.5 mVp-p to 10 mVp-p: SW4 = a (pre-amplifier voltage gain: 40 dB)
Item
rise time
fall time
Symbol
VOFSP SW4=a, b,
VOFSF Vi=0
ETM1’
ETM1
VOH
VOP
VOF
VOL
TR
TF
PS
T2
Vi=0
SW1, 5=a, b
f=100 kHz
SW4=a, b,
SW1, 5=a, b
f=100 kHz
Vi=60 mVp-p
R
Refer to Fig. 1
R
Refer to Fig. 1
I
I
R
C
R
C
Vi=0.25 mVp-p to
f=62.5 kHz
Refer to Fig. 1
OL
OH
A
A
L
L
L
L
10 mVp-p
=2 k
=20 pF
=2 k
=20 pF
=27 k
=27 k
=2 mA
=–0.4 mA
Conditions
—8—
Measure- Measure-
circuit
ment
1
1
1
1
1
1
1
1
1
1
1
ment
point
F, G
D, E
D, E
B, C
G
A
A
A
A
A
A
A
–500
–100
Min.
–10
260
1.8
2.8
2.8
Typ.
(Ta=25 °C, V
400
+500
+100
Max.
+10
540
100
100
0.5
1
CXA1720Q
CC
Vp-p
Vp-p
Unit
=5 V)
mV
mV
ns
ns
ns
%
%
V
V