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參數資料
型號: MC33121FN
廠商: MOTOROLA INC
元件分類: 模擬傳輸電路
英文描述: LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT
中文描述: TELECOM-SLIC, PQCC28
封裝: PLASTIC, LCC-28
文件頁數: 9/32頁
文件大小: 570K
代理商: MC33121FN
MC33121
MOTOROLA
9
R
,
Figure 11. Fault Threshold (On–Hook) versus RS
Figure 12. Fault Threshold (Off–Hook)
versus Loop Resistance
Figure 13. Fault Threshold (Off–Hook)
versus Loop Resistance
Figure 14. Fault Threshold (Off–Hook)
versus Loop Resistance
Figure 15. Fault Threshold (Off–Hook) versus RS
Figure 16. VDD Ripple Rejection versus Frequency
4.0
5.0
3.5
3.0
2.5
1.0
7.0
9.0
11
RS, SENSE RESISTANCE (k
)
3.0
0
2.4
1.8
1.2
0
500
1000
1500
2000
RL, LOOP RESISTANCE (
)
3.0
0
2.4
1.8
1.2
0
200
400
600
800
RL, LOOP RESISTANCE (
)
3.0
2.4
1.8
1.2
0
1.0
5.0
0.8
0.6
0.4
0
7.0
9.0
RS, SENSE RESISTANCE (k
)
80
0.02
40
20
0.1
10
20
f, FREQUENCY (kHz)
0.6
11
R
TIP–TO–VEE
VEE = –24 V
TA = 25
°
C
RL = OPEN
VEE = –42 V
TA = 25
°
C
RING–TO–GROUND
AND/OR TIP–TO–VEE
RS = 11 k
TA = 25
°
C
200
< RL < 800
(SEE TEXT)
RING–TO–VEE
VEE = –24 V
2.0
1.5
R
,
TIP–TO–VEE
VEE = –42 V
RING–TO–GROUND
VEE = –24 V
RING–TO–GROUND
VEE = –42 V
0.6
9.1 k
7.5 k
5.1 k
0.6
VEE = –28 V
TA = 25
°
C
RING–TO–GROUND
AND/OR TIP–TO–VEE
RS = 11 k
9.1 k
7.5 k
5.1 k
0
200
400
600
800
RL, LOOP RESISTANCE (
)
VEE = –24 V
TA = 25
°
C
RING–TO–GROUND
AND/OR TIP–TO–VEE
RS = 11 k
9.1 k
7.5 k
5.1 k
0.2
RING–TO–VEE
VEE = –42 V
TIP–TO–GROUND
–24 V
VEE
–42 V
60
1.0
VEE = –24 V
TA = 25
°
C
20 mA
IL
40 mA
4–WIRE
2–WIRE
R
,
R
,
R
,
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