參數(shù)資料
型號(hào)： SA5225
廠商： NXP Semiconductors N.V.
英文描述： Fiber optic postamplifier
中文描述： 光纖后置
文件頁(yè)數(shù)： 4/10頁(yè)
文件大?。?/td> 81K
代理商： SA5225
Philips Semiconductors
Product specification
SA5225
Fiber optic postamplifier
1998 Oct 07
4
DC ELECTRICAL CHARACTERISTICS
Min and Max limits apply over operating temperature at V
CC
= 5V
±
10%, unless otherwise specified.
Typical data apply at T
A
= 25
°
C and V
CC
= +5V.
SYMBOL
PARAMETER
TEST CONDITIONS
SA5225
UNIT
Min
Typ
Max
V
IN
Input signal voltage
single-ended
differential
0.002
0.004
1.5
3.0
V
P-P
V
OS
V
N
Input offset voltage
2
Input RMS noise
2
50
μ
V
μ
V
60
V
TH
Input level-detect programmability single-en-
ded
Level-detect hysteresis
3
V
IN
= 200kHz square wave
2
12
mV
P-P
V
HYS
2
3
4
dB
I
CC
V
CCA
+ V
CCE
supply current
No ECL loading
27
35
mA
I
INL
JAM input current
Pin 8 = 0V
–10
10
μ
A
V
IH
Minimum input for JAM = high
1
–1.165
V
DC
V
DC
V
DC
V
DC
V
IL
V
OH4
V
OL4
Maximum input for JAM = low
1
–1.490
Status pins
–1.0
–0.81
Status pins
–1.95
–1.63
NOTES:
1. These ECL specifications are referenced to the V
CCE
rail and apply for T
A
= 0
°
C to 85
°
C.
2. Guaranteed by design.
3. Also see the SA5224 which has 5dB
±
1dB hysteresis for FDDI compatibility.
4. Valid for Status pins only (#9, 10).
Table 1.
10K ECL Voltage Levels (referenced to V
CCE
) (Pins 12 & 13 only)
PARAMETER
–30
°
C
0
°
C
25
°
C
75
°
C
85
°
C
UNIT
V
OHMAX
V
OHMIN
V
OLMAX
V
OLMIN
–0.890
–0.840
–0.810
–0.735
–0.700
V
DC
V
DC
V
DC
V
DC
–1.060
–1.020
–0.980
–0.920
–0.890
–1.650
–1.630
–1.630
–1.600
–1.615
–1.890
–1.950
–1.950
–1.950
–1.920
AC ELECTRICAL CHARACTERISTICS
Min and Max limits apply for 4.5
≤
V
CC
≤
5.5V.
Typical data apply at T
A
= 25
°
C and V
CC
= +5V.
SYMBOL
PARAMETER
TEST CONDITIONS
SA5225
UNIT
Min
Typ
Max
BW
1
BW
2
R
IN
C
IN
Lower –3dB bandwidth
C
AZ
= 0.1
μ
F
0.5
1.0
1.5
kHz
Upper –3dB bandwidth
90
120
150
MHz
Input resistance
Pin 4 or 5
2.9
4.5
7.6
k
Input capacitance
Pin 4 or 5
2.5
pF
t
r
, t
f
ECL output
1
risetime,
falltime
R
L
= 50
To V
– 2V
20–80%
1.2
2.2
ns
t
PWD
Pulsewidth distortion
0.3
ns
P-P
R
AZ
Auto zero output resistance
Pin 1 or 2
155
250
423
k
R
F
t
LD
Level-detect filter resistance
Pin 7
14
24
41
k
μ
s
Level-detect time constant
C
F
= 0
0.5
1.0
2.0
NOTE:
1. Both outputs should be terminated identically to minimize differential feedback to the device inputs on a PC board or substrate.
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