參數(shù)資料
型號: TF1003C
元件分類: 運動控制電子
英文描述: LG1605DXB Limiting Amplifier
中文描述: LG1605DXB限幅放大器
文件頁數(shù): 6/12頁
文件大?。?/td> 733K
代理商: TF1003C
Data Sheet
February 1999
LG1605DXB Limiting Amplifier
6
Lucent Technologies Inc.
Test Circuit
12-3215(F)r.6
1. Depending on the desired supply rejection, V
BR
can be biased with a simple resistive divider, or resistor/zener diode network.
Alternatively, when the LG1605DXB is followed by the LG1600 clock and data regenerator, a resistive divider with bypassing capacitor may
be connected to pin 7 (V
REF
) of the LG1600 (V
REF
–3.2 V). This arrangement provides excellent temperature stability and power supply
rejection.
2. The outputs may be either ac coupled, as indicated, or dc terminated into 50
. In the first case, good output return loss (see Figure 8) can be
obtained. The latter configuration provides a 0 mV to –600 mV output swing (when limiting) for easy interface to dc-coupled circuits. No input
coupling capacitors are needed when interfacing with the LG1600 or the 1319 receiver.
Figure 3. LG1605DXB Test Circuit (with TF1003C Test Fixture)
12-3216(F)r.3
1. Depending on the desired supply rejection, V
BR
can be biased with a simple resistive divider, or resistor/zener diode network.
Alternatively, when the LG1605DXB is followed by the LG1600 clock and data regenerator, a resistive divider with bypassing capacitor may
be connected to pin 7 (V
REF
) of the LG1600 (V
REF
–3.2 V). This arrangement provides excellent temperature stability and power supply
rejection.
Figure 4. Bias Options
110 pF
25 k
110 pF
+
13
14
2
3
V
–OUT
CHIP BOUNDARY
GND
1, 4, 5, 6, 15, 16
7
V
BR
8
+
+
9
10
11
12
110 pF
50
V
SS
V
+OUT
V
BS
V
BF
V
+REF
V
+IN
V
–IN
V
–REF
25 k
+
+
50
50
50
5
5
LG1605DXB
SOURCE
0.047
μ
F
0.047
μ
F
50
50
LOAD
(SEE NOTE 2)
TF1003C FIXTURE BOUNDARY
0.047
μ
F
+
1.5 V
R
INT
10 k
(SEE NOTE 1)
+
5.2 V
5
0.047
μ
F
0.047
μ
F
0.047
μ
F
0.047
μ
F
0.047
μ
F
(SEE NOTE 1)
12 k
–3.2 V
(PIN 7 LG1600)
13.6 k
–1.5 V
A.
Using LG1600 Reference Voltage
B.
Using Supply Voltage
V
REF
V
BR
0.047
μ
F
(SEE NOTE 1)
8.2 k
–5.2 V
20 k
–1.5 V
V
SS
V
BR
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