參數(shù)資料
型號: SA1630
廠商: NXP Semiconductors N.V.
英文描述: IF Quadrature Transceiver(IF正交收發(fā)器)
中文描述: 中頻正交收發(fā)器(中頻正交收發(fā)器)
文件頁數(shù): 8/36頁
文件大?。?/td> 477K
代理商: SA1630
Philips Semiconductors
Application note
AN2003
SA1630 IF transceiver demonstration board
1999 Jan 05
8
Rx harmonic distortion measurement
Figure 5 shows the necessary connections required for measuring
the receiver harmonic distortion. They are the same as those for the
receive path measurements, only the Rx output is now measured
using an active high-impedance FET probe connected to the test
point posts. This test should be measured with the part programmed
for maximum receiver gain.
Figures 6 through 9 show the measured values for the fundamental,
second, third, and fourth harmonics. The HD2,3,4 parameter is
calculated as follows:
HD2,3,4
(H1
2
)
(H2
2
)
H1
(H3
2
)
* * 100
(2)
HD2,3,4
(2.369
2
)
(0.840
2
)
276
(0.446
2
)
* 100
0.925%
TECKTRONIX 754C
4-CHANNEL SCOPE
TP1 / TP2
KEITHLEY
DC CURRENT METER
KEITHLEY
DC VOLT METER
PLL JUMPER
POWER SUPPLY
+3V
32.3/41.5 mA DC
3.000000000 VDC
POWER
SUPPLY
SWITCHES
1: ON
2, 3: OFF
4–10: ON
353.0000 MHz
–77.00 dBm
SIGNAL GENERATOR
353 MHz @ –77 dBm
22.0000 MHz
–10.00 dBm
SIGNAL GENERATOR
22 MHz @ –10 dBm
SR01874
HP SPECTRUM
ANALYZER 8563E
h
8
Figure 5. The set-up for measuring Rx harmonic distortion
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