參數(shù)資料
型號: LH1465AB
廠商: Lineage Power
英文描述: ISDN dc Termination IC(ISDN 終端芯片)
中文描述: 綜合業(yè)務(wù)數(shù)字網(wǎng)直流終止集成電路(綜合業(yè)務(wù)數(shù)字網(wǎng)終端芯片)
文件頁數(shù): 11/14頁
文件大?。?/td> 375K
代理商: LH1465AB
Lucent Technologies Inc.
9
Data Sheet
February 1998
LH1465AB/AAE ISDN dc Termination IC
Test Circuits
(continued)
12-1943
Figure 8. Applied Waveform for Deactivation Test
12-1944
Notes:
For series test, open SHUNT rotary dial.
For shunt test, short SERIES rotary dial.
For MLT test, short SERIES rotary dial and open SHUNT rotary dial.
Figure 9. Test Circuit for LED Operation
2.0 mA
1.5 mA
1.0 mA
0.5 mA
0
500 ms
t2
MEASURE
CURRENT SOURCE LIMITED TO 30 V
1
2
3
4
5
6
7
8
+
1
2
3
4
5
6
7
8
ROTARY DIAL
ROTARY DIAL
SERIES
SHUNT
R
LOOP
200
—4 k
900
—4.5 k
(MLT)
V
BAT
+
–43.5 V TO –56 V
60 V PEAK, 2 Hz—3 Hz
(MLT)
RING
TIP
R1 68
R2
2.2 k
4 W, 5%
C1
1
μ
F
LH1465AB
PD1
6N139
R3
10 k
1/4 W, 1%
V
OUT
+
V
5 V
85
85 mH
25
25
1
μ
F
1/4 W, 1%
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