MM1140 查看數據表（PDF） - Mitsumi

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MM1140

6-Input 1-Output Video Switch

Mitsumi 

MITSUMI

6-Input 1-Output Video Switch MM1140

Measuring Procedures (Except where noted otherwise, VCC=5.0V, VC1=VCC, VC2=0V)

Item

Switch

Symbol

state

Measuring Procedure

Consumption current Id

Connect a DC ammeter to the VCC pin and measure. VCC is 5V and

1

the ammeter is shorted for use in subsequent measurements.

Input a 2.0VP-P, 100kHz sine wave to SG, and obtain GV from the

Voltage gain

GV

2 following formula given TP12 voltage as V1 and TP14 voltage as V2.

GV=20LOG (V2/V1) dB

Frequency

characteristic

For the above GV measurement, given TP14 voltage for 10MHz as

FC

2 V3, FC is obtained from the following formula.

FC=20LOG (V3/V2) dB

Differential gain

Input a 2.0VP-P staircase wave to SG, and measure differential gain at TP14.

DG 2

APL=10~90%

Differential phase DP 2 Proceed as for DG, and measure differential phase.

Total harmonic

distortion

THD 2

Input a 2.5VP-P, 1kHz sine wave to SG, connect a distortion meter to

TP14 and measure.

Output offset voltage Voff 3 Measure the DC voltage difference of each switch status at TP13.

Assume VC1=2.1V, VC2=0.7V.

Crosstalk

Input a 2.0VP-P, 4.43MHz sine wave to SG, and given TP12 voltage as V4

CT

9

and TP14 voltage as V5, CT is obtained from the following formula.

CT=20LOG (V5/V4) dB

Impress different optional DC voltages on TP6 and TP7. Gradually

H VIH1

Switch 1

raise from VC3=0V. TP1 voltage when TP7 voltage is output on TP13

4

input voltage

is VIH1. Gradually lower from VC3=VCC. TP1 voltage when TP6

L VIL1

voltage is output on TP13 is VIL1.

Impress different optional DC voltages on TP6 and TP8. Gradually

H VIH2

Switch 2

raise from VC3=0V. TP2 voltage when TP8 voltage is output on TP13

5

input voltage

is VIH2. Gradually lower from VC3=VCC. TP2 voltage when TP6

L VIL2

voltage is output on TP13 is VIL2.

Impress different optional DC voltages on TP6 and TP9. Gradually

H VIH3

Switch 3

raise from VC3=0V. TP3 voltage when TP9 voltage is output on TP13

6

input voltage

is VIH3. Gradually lower from VC3=VCC. TP3 voltage when TP6

L VIL3

voltage is output on TP13 is VIL3.

Impress different optional DC voltages on TP9 and TP10. Gradually

H VIH4

Switch 4

raise from VC3=0V. TP4 voltage when TP10 voltage is output on

7

input voltage

TP13 is VIH4. Gradually lower from VC3=VCC. TP4 voltage when TP9

L VIL4

voltage is output on TP13 is VIL4.

Impress different optional DC voltages on TP6 and TP11. Gradually

H VIH5

Switch 5

raise from VC3=0V. TP5 voltage when TP11 voltage is output on

8

input voltage

TP13 is VIH5. Gradually lower from VC3=VCC. TP5 voltage when TP6

L VIL5

voltage is output on TP13 is VIL5.

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