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參數(shù)資料
| 型號： | LG1600KXH2666 |
| 英文描述： | LG1600KXH Clock and Data Regenerator |
| 中文描述： | LG1600KXH時鐘和數(shù)據(jù)再生 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 492K |
| 代理商： | LG1600KXH2666 |
Data Sheet
August 1999
LG1600FXH Clock and Data Regenerator
7
Lucent Technologies Inc.
Pin Information
(continued)
The pin descriptions for the LG1600FXH are given in Table 1.
Table 1. Pin Descriptions
Pin
Symbol
Name/Description
1, 4, 17
7
DNC
V
REF
Do Not Connect.
Internal test point or reserved for future use.
Reference Voltage.
Nominally –3.2 V. Can be used to bias LG1605DXB
(see data sheet). Load
≥
10 k
.
Terminal for optional external capacitor to increase PLL damping (normally
not connected).
Terminal for external resistor to set PLL bandwidth (Required).
Loss of Signal Indicator.
Provides approximately 1 mA sink current with
data signal present, can interface to CMOS, TTL when connected to logic
V
DD
through a 10 k
resistor. Normally grounded when not used.
Recovered Clock Out.
ac couple or terminate into 50
to GND.
Recovered Clock Out.
ac couple or terminate into 50
to GND.
Supply Voltage.
–5.2 Vdc nominal.
9
C
EXT
11
14
R
EXT
LOS
26
31
35
V
–CLKO
V
+CLKO
V
SS
Warning: Connecting a positive voltage to this pin will permanently
damage the device.
Regenerated Data Out.
ac couple or terminate into 50
to GND.
Regenerated Data Out.
ac couple or terminate into 50
to GND.
dc Feedback Voltage.
Connect to V
–TH
.
Input Threshold Voltage.
Connect to V
–FB
.
Negative Data Input.
Internally ac coupled.
Positive Data Input.
Internally ac coupled.
dc Feedback Voltage.
Internally connected; not normally used.
No Internal Connection.
May be grounded.
Ground.
Connect to top ground plane of coplanar/microstrip circuit board.
38
43
48
51
55
60
65
V
–OUT
V
+OUT
V
–FB
V
–TH
V
–IN
V
+IN
V
+FB
NIC
GND
18, 68
2, 3, 5, 6,
8, 10, 12,
13, 15, 16,
19, 20, 21,
22, 23, 24,
25, 27, 28,
29, 30, 32,
33, 34, 36,
37, 39, 40,
41, 42, 44,
45, 46, 47,
49, 50, 52,
53, 54, 56,
57, 58, 59,
61, 62, 63,
64, 66, 67
Body
GND
Ground.
Does not need to be connected. GND pins provide all necessary
ground connections.
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