BA7630S 查看數據表（PDF） - ROHM Semiconductor

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BA7630S

Video switch for CANAL-Plus decoder

ROHM Semiconductor 

Multimedia ICs

BA7630S / BA7630F

•Circuit operation

Digital block truth table

Reset

H

L

L

L

L

L

INPUT

Clock

×

L

H

↑

↑

↓

Data

×

×

×

H

L

L

L

↓

H

OUTPUT

SW1···························SW9

H····································H

SW1-O ·····················SW 9-O

SW1-O ·····················SW 9-O

SW1-O ·····················SW 9-O

SW1-O ·····················SW 9-O

SW1-O ·····················SW 9-O

SW1-N·····················SW 9-N

Note

—

—

—

Data "L" sent to internal shift register

Data "H" sent to internal shift register

Internal shift register data unchanged

Contents of internal shift register sent to

internal latch

Note 1: H: high level

Note 2: L: low level

Note 3: ×: either H or L

Note 4: ↑: L to H transition

Note 5: ↓: H to L transition

Note 6: SW1-O to SW9-O: SW1 to SW9 levels before establishing the input conditions shown in the table.

Note 7: SW1-N to SW9-N

nearest clock ↓ transition.

Analog truth table

(1) OUT1 switch

SW1

L

L

H

H

SW2

L

H

L

H

RESET

H

H

H

H

SELECT

IN1

IN2

IN3

IN3

(2) OUT2 switch

SW3

L

H

RESET

H

H

SELECT

IN1

IN3

(3) OUT3 switch

SW4

RESET

SELECT

L

H

IN2

H

H

IN4

Note: When using the switches independently

without the digital block, the RESET pin

must be set to "H".

8

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