HC5520
R
TPS
C
VRX
0.47µF
R
X
100kΩ
TIPSEN
TIP
R
X
100kΩ
TIP
V
RX
50Ω
R
PT
600Ω
V
TR
HC5520
R
PR
C
VTX
0.47µF
50Ω
RING
RING
T
V
X
TX
RINGSEN
100kΩ
T
100kΩ
X4W
R
RGS
R
4W
FIGURE 10. 4W TO 2W TRANSMISSION TEST CIRCUIT - NORMAL AND REVERSE MODES
PARAMETER
INPUT AT VRX
0dBm0 at 1020Hz
0dBm0 at Freq
MEASUREMENT
SPECIFICATIONS AT 600Ω
Absolute Receive Gain, AGR
Receive Frequency Response
Receive Gain Tracking
V
at 1020Hz
AGR = 20log(V /V )
TR RX
TR
V
at Freq
20log(V /V ) - AGR
TR RX
TR
Level at 1020Hz
Level at 1020Hz
V
at 1020Hz
20log(V /Level) - AGR
TR
TR
Receive Signal to Distortion
Receive Idle Channel Noise
V
at 2nd to 5th Harmonics
20log(Level/V
TR
)
TR
0V
RMS
V
20log(V /0.7746V
TR
)
RMS
TR
R
TPS
C
VRX
0.47µF
R
X
100kΩ
TIPSEN
TIP
R
X
100kΩ
TIP
V
RX
50Ω
R
R
PT
600Ω
HC5520
V
PR
AC
C
VTX
0.47µF
50Ω
RING
RING
T
V
X
TX
RINGSEN
100kΩ
T
100kΩ
X4W
R
RGS
R
4W
FIGURE 11. 2W TO 4W TRANSMISSION TEST CIRCUIT - NORMAL AND REVERSE MODES
PARAMETER
INPUT AT V
MEASUREMENT
SPECIFICATIONS AT 600Ω
AC
Absolute Transmit Gain, AGT
Transmit Frequency Response
Transmit Gain Tracking
2x(0dBm0) at 1020Hz
2x(0dBm0) at Freq
2x(Level) at 1020Hz
2x(Level) at 1020Hz
V
at 1020Hz
AGT = 20log(V /0.7746V
TX
)
RMS
TX
V
at Freq
20log(V /0.7746V
TX
) - AGT
RMS
TX
V
at 1020Hz
20log(V /Level) - AGT
TX
TX
Transmit Signal to Distortion
Transmit Idle Channel Noise
V
at 2nd to 5th Harmonics
20log(Level/V
)
TX
TX
0V
RMS
V
20log(V /0.7746V
TX
)
RMS
TX
12
HARRIS [ HARRIS CORPORATION ]
