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參數(shù)資料
| 型號(hào)： | 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)： | 14/20頁 |
| 文件大?。?/td> | 191K |
| 代理商： | HC5520CM |
14
FIGURE 15. TRANSMIT OVER LOAD LEVEL AT 2W AND 4W TEST CIRCUIT - NORMAL AND REVERSE MODES
INPUT AT V
AC
AT 1kHz
SLIC OUTPUT
IMPEDANCE
SLIC TRANSMIT
GAIN
MEASUREMENT
SPECIFICATION AT 600
V
AC
= 2x(2.15V
PEAK
)
600
0dB
V
TR
and V
TX
at
2nd to 5th Harmonics
20log[V
TR
/(V
AC
/2)]
and 20log[V
TX
/(V
AC
/2)]
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
V
TR
I
L
V
AC
2.16
μ
F
368
368
I
LONG
I
LONG
FIGURE 16. LONGITUDINAL IMPEDANCE TEST CIRCUIT - NORMAL AND REVERSE MODES
PARAMETER
INPUT
MEASUREMENT
SPECIFICATIONS
Longitudinal Impedance, Tip Side
V
AC
= 0dBm0 at Freq
V
AC
= 0dBm0 at Freq
I
LONG
(rms) and V
T
(rms)
I
LONG
(rms) and V
R
(rms)
Z
LONG
= V
T
/I
LONG
Z
LONG
= V
R
/I
LONG
Longitudinal Impedance, Ring Side
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
T
V
R
SHDO
TRIANGULAR
WAVEFORM
V
AC
2.16
μ
F
I
LONG
I
LONG
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
FIGURE 17. ON-HOOK LONGITUDINAL CURRENT LIMIT TEST CIRCUIT - NORMAL AND REVERSE MODES
PARAMETER
INPUT
MEASUREMENT
SPECIFICATIONS
Longitudinal Current Limit
V
AC
at Freq, I
LONG
= 15mA
PEAK
SHDO
SHDO = Hi
20
μ
F
20
μ
F
HC5520
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