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參數(shù)資料
| 型號： | HC5520CM |
| 廠商： | Harris Corporation |
| 英文描述： | CO/PABX Polarity Reversal Subscriber Line Interface Circuit |
| 中文描述： | 二氧化碳/極性反轉(zhuǎn)交換機(jī)用戶線接口電路 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大小： | 191K |
| 代理商： | HC5520CM |
13
FIGURE 12. 2W RETURN LOSS TEST CIRCUIT - NORMAL AND REVERSE MODES
DEFINITION : 2W Return Loss = 20 log[(Z
S
+ Z
L
) / Abs(Z
S
- Z
L
)]. Where Z
S
is the source impedance and Z
L
is the load impedance.
PARAMETER
INPUT AT V
AC
0dBm0 at Freq
MEASUREMENT
SPECIFICATIONS FOR 600
2W Return Loss
V
TR
at Freq
20log[V
AC
/Abs(2xV
TR
- V
AC
)]
600
R
X
T
X
T
X4W
R
PT
R
PR
50
R
RGS
R
TPS
100k
50
100k
TIP
TIPSEN
RING
RINGSEN
HC5520
TIP
RING
R
X
100k
C
VRX
0.47
μ
F
C
VTX
0.47
μ
F
V
RX
V
TX
100k
R
4W
V
AC
Z
S
V
TR
Z
L
V
THB
FIGURE 13. 4W TO 4W INSERTION LOSS AND TRANSHYBRID BALANCE - NORMAL AND REVERSE MODES
PARAMETER
INPUT AT V
RX
0dBm0 at Freq
MEASUREMENT
SPECIFICATIONS FOR 600
4W to 4W Insertion Loss
V
TX
at Freq
V
THB
at Freq
20log[V
RX
/V
TX
]
20log[V
RX
/V
THB
] + 20dB
Transhybrid Balance
0dBm0 at Freq
600
R
X
T
X
T
X4W
R
PT
R
PR
50
R
RGS
R
TPS
100k
50
100k
TIP
TIPSEN
RING
RINGSE
N
HC5520
TIP
RING
R
X
100k
C
VRX
0.47
μ
F
C
VTX
0.47
μ
F
V
RX
V
TX
100k
R
4W
-
+
100k
100k
1M
5
FIGURE 14. RECEIVE OVER LOAD LEVEL AT 4W AND 2W TEST CIRCUIT - NORMAL AND REVERSE MODES
INPUT AT VRX
AT 1kHz
SLIC OUTPUT
IMPEDANCE
SLIC
VOLTAGE GAIN
MEASUREMENT
SPECIFICATION
AT 600
V
RX
= 2.50V
PEAK
600
0dB
V
TR
at 2nd to 5th Harmonics
20log(V
TR
/V
RX
)
600
R
X
T
X
T
X4W
R
PT
R
PR
R
RGS
R
TPS
100k
50
100k
50
TIP
TIPSEN
RING
RINGSEN
HC5520
TIP
RING
R
X
100k
C
VRX
0.47
μ
F
C
VTX
0.47
μ
F
V
RX
V
TX
100k
R
4W
V
TR
HC5520
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