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FOA1252A1
Electrical Characteristics
Preliminary Data Sheet
5
1998-07
2.3
AC/DC Characteristics
Conditions:
T
amb
= +25
°
C,
V
CC
= +5.0 V,
C
external
= 0.85 pF
Parameter
Symbol
Limit Values
min.
typ.
–
47
–
+1.65
–
–
–
–
30
Unit
Remarks
max.
57
Supply current
Input voltage
Input current
Input current before
clipping
Input resistance
Input sensitivity
Overload
Transimpedance
Output voltage swing
(Q
+
- Q
-
)
Bandwidth (-3 dB)
Output resistance
I
VCC
V
IN
I
IN
I
IN,CL
mA
V
–
–
2200
μ
App
1)
–
μ
App
–
1)
Data rate: 2.5 Gbit/s; data sequence: PRBS 2
23
- 1, overload measured electrically, 0 dBm = 1 mA average
2)
Generated noise on power supply: sine curve, 100 mVpp (see application note b)
R
IN
P
IN
P
OVL
R
T
V
OUT
–
–
–
–
0.6
40
-23.5
–
0
26
0.78
–
dBm BER < 10
-9 1)
dBm BER < 10
-9 1)
k
differential
into 2
×
50
Vpp
–
–
–
1.1
f
3db
R
OUT
–
48
1600
60
–
72
MHz
internally connected to
V
CC
(Q
+
+ Q
-
)/2
Output voltage
VCM
OUT
–
V
CC
-
0.6
15
45
35
–
V
Output pattern jitter
1)
t
j,p
–
–
–
–
–
–
ps
50
μ
App <
I
IN
< 500
μ
App
500
μ
App <
I
IN
< 2 mApp
f
< 10 MHz
2)
Power supply
rejection ratio
Bias resistance
Bias voltage
Low frequency cutoff
f
3db,low
PSSR
dB
R
BIAS
V
BIAS
400
–
–
500
+4.2
65
600
–
–
V
kHz
–
–
AC-coupled outputs
(via 22 nF)
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