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參數(shù)資料
| 型號(hào)： | HC5520CQ |
| 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)： | 12/20頁 |
| 文件大小： | 191K |
| 代理商： | HC5520CQ |
12
FIGURE 10. 4W TO 2W TRANSMISSION TEST CIRCUIT - NORMAL AND REVERSE MODES
PARAMETER
INPUT AT VRX
MEASUREMENT
SPECIFICATIONS AT 600
Absolute Receive Gain, AGR
0dBm0 at 1020Hz
V
TR
at 1020Hz
AGR = 20log(V
TR
/V
RX
)
Receive Frequency Response
0dBm0 at Freq
V
TR
at Freq
20log(V
TR
/V
RX
) - AGR
Receive Gain Tracking
Level at 1020Hz
V
TR
at 1020Hz
20log(V
TR
/Level) - AGR
Receive Signal to Distortion
Level at 1020Hz
V
TR
at 2nd to 5th Harmonics
20log(Level/V
TR
)
Receive Idle Channel Noise
0V
RMS
V
TR
20log(V
TR
/0.7746V
RMS
)
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
TR
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
FIGURE 11. 2W TO 4W TRANSMISSION TEST CIRCUIT - NORMAL AND REVERSE MODES
PARAMETER
INPUT AT V
AC
MEASUREMENT
SPECIFICATIONS AT 600
Absolute Transmit Gain, AGT
2x(0dBm0) at 1020Hz
V
TX
at 1020Hz
AGT = 20log(V
TX
/0.7746V
RMS
)
Transmit Frequency Response
2x(0dBm0) at Freq
V
TX
at Freq
20log(V
TX
/0.7746V
RMS
) - AGT
Transmit Gain Tracking
2x(Level) at 1020Hz
V
TX
at 1020Hz
20log(V
TX
/Level) - AGT
Transmit Signal to Distortion
2x(Level) at 1020Hz
V
TX
at 2nd to 5th Harmonics
20log(Level/V
TX
)
Transmit Idle Channel Noise
0V
RMS
V
TX
20log(V
TX
/0.7746V
RMS
)
V
AC
HC5520
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