M52749FP

REJ03F0194-0201 Rev.2.01 Mar 31, 2008

Page 13 of 26

First, SG3 to 1 MHz is as input signal. Input a resister that is about 2 k

Ω to offer the voltage at input pins (2, 6, 11) in

order that the bottom of input signal is 2.5 V.

By the same way, measure the output amplitude when SG3 to 50 MHz is as input signal.

equation below:

(dB)

∆F

Relative characteristics

∆F

∆F

Relative characteristics

∆F

By the same way, measure the output amplitude when SG3 to 150 MHz is as input signal.

The measured value is called VOUT (33, 38, 41).

(dB)

∆F

Relative characteristics

∆F

C.T.1 Crosstalk1 (f = 50 MHz)

Input SG3 (50 MHz) to pin 2 only, and then measure the waveform amplitude output at OUT (33, 38, 41).

The measured value is called VOUT (33, 38, 41). Crosstalk C.T.1 is calculated by the equation below:

C.T.1 = 20log

(dB)

VOUT (41)

VOUT (33, 38)

C.T.1' Crosstalk1 (f = 180 MHz)

Measuring condition and procedure are the same as described in C.T.1, expect SG3 to 180 MHz.

C.T.2 Crosstalk2 (f = 50 MHz)

Input SG3 (50 MHz) to pin 6 only, and then measure the waveform amplitude output at OUT (33, 38, 41).

The measured value is called VOUT (33, 38, 41). Crosstalk C.T.2 is calculated by the equation below:

C.T.2 = 20log

(dB)

VOUT (38)

VOUT (33, 41)

C.T.2' Crosstalk2 (f = 180 MHz)

Measuring condition and procedure are the same as described in C.T.2, expect SG3 to 180 MHz.