MM1234 Ver la hoja de datos (PDF) - Mitsumi
Número de pieza
componentes Descripción
Lista de partido
MM1234 Datasheet PDF : 7 Pages
| |||
MITSUMI
2-Input 1-Output 3-Circuit Video Switch MM1231~1234
Measuring Procedures (Except where noted otherwise, VCC=5.0V, VC1=VCC, VC2=0V)
Item
Switch state
Symbol
S1 S2 S3 S4 S5 S6 S7 S8
Measuring Procedure
Consumption
current
2 2 2 2 2 2 2 1 Connect a DC ammeter to the VCC pin and measure. The
Id
ammeter is shorted for use in subsequent measurements.
Voltage gain
1 2 2 2 2 2 2 1 Input a 2.0VP-P, 100kHz sine wave to SG, and
21222211
obtain Gv from the following formula given TP1
22122222
GV
voltage as V1 and TP3 voltage as V2.
22212212
22221223
22222113
GV=20LOG (V2/V1) dB
Frequency
characteristic
12222221
For the above GV measurement, given TP3
2 1 2 2 2 2 1 1 voltage for 10MHz as V3, FC is obtained from
22122222
Fc
the following formula.
22212212
22221223
22222113
FC=20LOG (V3/V2) dB
12222221
2 1 2 2 2 2 1 1 Input a 2.0VP-P staircase wave to SG, and
2 2 1 2 2 2 2 2 measure differential gain at TP3.
Differential gain DG
22212212
22221223
APL=10~90%
22222113
12222221
21222211
2 2 1 2 2 2 2 2 Proceed as for DG, and measure differential
Differential phase DP 2 2 2 1 2 2 1 2 phase.
22221223
22222113
22222221
22222211
Output offset
2 2 2 2 2 2 2 2 Measure the DC voltage difference at TP2 for
voltage
Voff
2
2
2
2
2
2
1
2
each switch for VC1 and VC2.
22222223
22222213
1 2 2 2 2 2 1 1 Assume VC1=2.1V, VC2=0.7V. Input a 2.0VP-P,
2 1 2 2 2 2 2 1 4.43MHz sine wave to SG, and given TP1
Crosstalk
2 2 1 2 2 2 1 2 voltage as V4 and TP3 voltage as V5, CT is
CT 2 2 2 1 2 2 2 2 obtained from the following formula.
22221213
22222123
CT=20LOG (V5/V4) dB
Switch input
voltage H
2 2 2 2 2 2 1 1 Impress an optional DC voltage on TP5 7, 9 and
VIH 2 2 2 2 2 2 1 2 TP6, 8 and 10. Gradually raise from VC1=0V.
2 2 2 2 2 2 1 3 TP4 voltage when TP6, 8, 10 voltage is output
Switch input
voltage L
2 2 2 2 2 2 1 1 on TP2 is VIH. Gradually lower from VC1=VCC.
VIL 2 2 2 2 2 2 1 2 TP4 voltage when TP5, 7, 9 voltage is output on
2 2 2 2 2 2 1 3 TP2 is VIL.
Share Link: 