µPC8002

21

Test Circuit Example 4. (IF amplifier phase fluctuation)

Caution

The 10 pF capacitor value for RSSI OUT includes all the capacitances (board, pattern, etc) applied

to the pin.

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)

330 pF

IF1 IN

17

IF1 OUT

10

RSSI OUT

10 pF

For IF2 input

Storage

oscilloscope 2

15

IF2 IN

For IF1 input

50

Ω

SG

10.7 MHz, _14 dBm

Storage

oscilloscope 1

330 pF

50

Ω

SG

10.7 MHz, _14 dBm

Input signal from SG

1 SEC

50

SEC

19

µ

19

IF1 IN

50

Ω

330 pF

Network

analyzer

11

IF2 OUT

10 pF

10 k

Ω

Attenuator

1000 pF