Test Circuit Example 4. (IF amplifier phase fluctuation)
IF1 IN
19
330 pF
50 Ω
Attenuator
Network
analyzer
µPC8002
IF2 OUT
11
1000 pF
10 pF
10 kΩ
Caution The 10 pF capacitor value for IF2 OUT includes all the capacitance (board, pattern, etc.) applied
to the pin. Ensure that the recommended load condition (10 pF) is not exceeded.
Test Circuit Example 5. (RSSI rise time, RSSI fall time)
... Time until RSSI output is within ±10 % of the final value)
IF1 IN
19
330 pF
50 Ω
IF1 OUT
17
IF2 IN
15
330 pF
50 Ω
RSSI OUT
10
10 pF
For IF1 input
For IF2 input
SG
10.7 MHz, _14 dBm
Input signal from SG
SG
10.7 MHz, _14 dBm
Storage
oscilloscope 1
Storage
oscilloscope 2
1 SEC
50 µSEC
Caution The 10 pF capacitor value for RSSI OUT includes all the capacitances (board, pattern, etc) applied
to the pin.
21