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PDF ( 数据手册 , 数据表 ) TF1003C

零件编号 TF1003C
描述 LG1605DXB Limiting Amplifier
制造商 Agere Systems
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TF1003C 数据手册, 描述, 功能
Data Sheet
February 1999
LG1605DXB Limiting Amplifier
Features
s 28 dB gain, 34 dB differential
s Large dynamic range: >60 dB
s Wideband response: 8 kHz to 3 GHz
s Extremely low ±4 ps delay skew across input range
s Complementary 50 I/Os
s Surface-mount package
s Standard ECL supply (400 mW)
Applications
s Data/clock main amplifier SONET/SDH OC-48/
STM-16 transmission systems, DWDM systems
s Digital video transmission
s Interface between 1319 receiver and LG1600
clock and data regenerator
s High-speed comparator
Functional Description
The LG1605DXB is a GaAs wideband limiting ampli-
fier with differential inputs and outputs that provides
28 dB of gain (34 dB differential) and 3 GHz of band-
width in a 50 environment (Figure 1 shows the
block diagram). At low input levels, below 10 mV to
20 mV, the circuit behaves as a linear amplifier. At
higher levels, the device goes smoothly into limiting.
The device matches the performance of an AGC
amplifier but shows none of the AGC bouncing and
attack characteristics.
VBR
8
VSS GND
7 1, 4, 5, 6, 15, 16
110 pF
110 pF
9
V–REF
10
V–IN
11
V+IN
12
V+REF
50
50
110 pF
25 kCHIP BOUNDARY
+–
–+
+–
–+
3
V–OUT
2
V+OUT
25 k
–+
13
VBF
14
VBS
Figure 1. LG1605DXB Block Diagram
12-3214(F).r3







TF1003C pdf, 数据表
LG1605DXB Limiting Amplifier
Typical Performance Characteristics (at TA = 25 °C) (continued)
Data Sheet
February 1999
6 mVp-p
VERTICAL: 200 mV/div
12 mVp-p
VERTICAL: 200 mV/div
50 mVp-p
VERTICAL: 200 mV/div
400 mVp-p
VERTICAL: 200 mV/div
800 mVp-p
HORIZONTAL: 100 ps/div
A. Input Voltage
VERTICAL: 200 mV/div
HORIZONTAL: 100 ps/div
B. Output Voltage
1000
100
10
1
10 100
INPUT VOLTAGE (mVp-p)
C. Output vs. Input
1000
12-3221(F)
10
8
6
4
2
0
–2
–4
–6
–8
–10
1
10 100
INPUT VOLTAGE (mVp-p)
1000
12-3222(F)
D. Input-to-Output Relative Delay
Figure 10. Limiting Characteristics
8 Lucent Technologies Inc.














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