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參數(shù)資料
| 型號： | LG1626DXC |
| 廠商： | Lineage Power |
| 英文描述： | Optical Modulator Driver(光調(diào)制驅(qū)動器) |
| 中文描述： | 光調(diào)制器驅(qū)動（光調(diào)制驅(qū)動器） |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 264K |
| 代理商： | LG1626DXC |
6
Lucent Technologies Inc.
Data Sheet
February 1999
LG1626DXC Modulator Driver
Electrical Characteristics
(continued)
5-6553(F).b
*A 2.5 k
resistor will set the eye crossing at 50%. A 5 k
potentiometer will allow the eye crossing to be varied.
Notes:
All bypass caps should be mounted close to the package.
I
SS3
can be measured and used to control V
MOD
.
I
SS2
can be measured and used to control V
OUT-DC
.
For optimal performance, the proximity of the two components should be minimized and the package bottom must be soldered to the circuit
board (GND).
For proper impedance matching, high-speed transmission lines should be 50
controlled impedance lines.
Figure 4. LG1626DXC Typical Electrical Evaluation (ac Coupled to Scope)
V
D
C
S
V
S
B
1
2
3
4
5
6
7
8
9 10 11 12
13
14
15
16
17
18
19
20
21
22
23
24
LG1626DXC
MODULATOR
DRIVER
50
50
+
DATA
GENERATOR
SCOPE
Zo = 50
DATA IN
V
S
V
S
V
M
2.5 k
*
V
SS
= –5.2 V
0.047
μ
F
1
1
MK MK
1
3 k
2 k
V
SS
0.1
μ
F
REQUIRED TO SET
V
MOD
AND V
DC-ADJ
TO ACHIEVE DESIRED
MODULATION, ONE EACH.
VOLTAGE
DIVIDER
V
SS
0.1
μ
F
TO USER-SUPPLIED
VOLTAGE MONITOR
(DVM).
TO NODE
V
SS2
AND V
SS3
ONE EACH.
CURRENT
SENSE
0.1
μ
F
V
SS
BYPASS
FOR V
SS1
V
SS1
V
TH
V
IN
V
OUT
V
S
V
OUT-DC
V
D
V
D
C
S
Zo = 50
0.1
μ
F
10
0.1
μ
F
BG2P5
LM4040
MOD_5
V
SS
= –5.2 V
10
0.047
μ
F
2.5 k
10
0.1
μ
F
50
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