Serially Controlled, Clickless

Audio/Video Switches

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13

SCLK

DIN

DOUT

D7

D6

D1

D0

CS

20%

20%

20%

20% 20%

20%

20%

70%

70%

70%

70%

Figure 5. 3-Wire Serial-Interface Timing Diagram

D7

D6

D5 D4

MSB

LSB

D3 D2 D1 D0

DATA BITS FROM PREVIOUS DATA INPUT

DOUT POWER-UP DEFAULT: D7–D0 = 0

D6 D5 D4 D3 D2 D1 D0

D7

DOUT

DIN

SCLK

SWITCHES UPDATED

DATA CLOCKED IN

DATA CLOCKED OUT

CS

D7

INPUT DATA BITS

Figure 6. A Complete 3-Wire Serial-Interface Transmission

-20

-40

-120

0.1

10

100

-100

-60

-80

FREQUENCY (MHz)

1

T-SWITCH

SPST

SWITCH

Figure 8. Off-Isolation vs. Frequency

SIGNAL OUT

SIGNAL IN

COM3

NO3

NO2B

NO2A

COM2

Figure 7. T-Switch Configuration

TRANSISTOR COUNT: 3518

___________________Chip Information