MITSUMI
3-Input 2-Output 3-Circuit Video Switch MM1238
*4 Crosstalk (VIN-ROUT, LOUT)
Input a 1Vp-p, 100kHz sine wave to SG2.
Obtain CTRV (CTLV) using the following formula given output amplitude for combinations other than those
below for SW control pin as VO7, and for the combinations below as VO8.
CTRV (CTLV)=20 log (VO8/VO7) dB
1. CTRV
2. CTLV
Switch status
Measuring pin
S2 V1 V2 V3 V4
ALHLH
TP5
BHLHL
CHHHH
ALHLH
TP1
BHLHL
CHHHH
Switch status
Measuring pin
S2 V1 V2 V3 V4
ALHLH
TP6
BHLHL
CHHHH
ALHLH
TP4
BHLHL
CHHHH
Measuring Circuit