MM1238 查看數據表（PDF） - Mitsumi

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MM1238

3-Input 2-Output 3-Circuit Video Switch

Mitsumi 

MITSUMI

3-Input 2-Output 3-Circuit Video Switch MM1238

Input impedance

VIN

RIN

LIN

Output impedance

VOUT

ROUT

LOUT

Crosstalk

VIN VOUT

RIN ROUT

LIN LOUT

VIN ROUT

VIN LOUT

Switch input voltage

SW input voltage H

SW input voltage L

Input dynamic range

VIN VOUT

RIN ROUT

RIV

RIR

RIL

VOV

VOR

VOL

CTVV

CTRR

CTLL

CTRV

CTLV

VIH

VIL

D1

D2

LIN LOUT

D3

VIN1~VIN3

RIN1~RIN3

LIN1~LIN3

15

kΩ

68

kΩ

68

kΩ

VOUT2

ROUT1 and ROUT2

LOUT1 and LOUT2

50

Ω

50

Ω

50

Ω

* SG2 : 1VP-P, 4.43MHz 1

* SG3 : 2.5VP-P, 1kHz 2

* SG1 : 2.5VP-P, 1kHz 3

* SG2 : 1VP-P, 100kHz 4

* SG2 : 1VP-P, 100kHz 5

-60 -50 dB

-80 -70 dB

-80 -70 dB

-70 -60 dB

-70 -60 dB

Switching H level for each IC SW 2.1

Switching L level for each IC SW

V

0.7 V

VCC=12V, SG1 : sine wave, 1kHz 2.6

VCC=12V, SG2 : sine wave, 1kHz

Total higher harmonic

2.0

distortion=0.5%

VCC=12V, SG3 : sine wave, 1kHz

Total higher harmonic

2.0

distortion=0.5%

VP-P

Vrms

Vrms

*1 Crosstalk (VIN VOUT)

Input a 1VP-P, 4.43MHz sine wave to SG2.

Obtain CTVV using the following formula given output amplitude for combinations other than those below

for SW control pin as VO1, and for the combinations below as VO2.

CTVV=20 log (VO2/VO1) dB

1. CTVV1

2. CTVV2

Switch status

Measuring pin

S2 V1 V2 V3 V4

A L L LH

AHL LH

A HH L H

BL LHL

TP8

B LHHL

BHHH L

C L LHH

C LHHH

CH L HH

Switch status

Measuring pin

S2 V1 V2 V3 V4

A LHL L

A LHHL

A LHHH

BHL L L

TP3

BHL LH

BH L HH

CHHL L

CHH L H

CHHH L

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