BA7632AF 查看數據表（PDF） - ROHM Semiconductor

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BA7632AF

Video switch for CANAL-Plus decoder

ROHM Semiconductor 

Multimedia ICs

•Input / output circuits

VCC

1

50

1.8mA

VCC

13

25

16

1.8mA

BA7632AF

VCC

2

8

14k

12

14

10k

15

36k

30k

3, 5, 7, 9, 11

VCC

6.0V

100

140k

125µA

30µA

•Electrical characteristics (unless otherwise noted, Ta = 25°C and VCC = 12V)

Parameter

Symbol Min. Typ. Max. Unit

Recommended operating voltage

VCC

4.5

12.0 13.0

V

Supply current

ICC

—

14.9 24.0

mA

Maximum output level

Vom

3.1

3.6

—

Vrms

Voltage gain

GV

– 0.5

0

0.5

dB

Total harmonic distortion

THD

—

0.005 0.1

%

Interchannel crosstalk

CTM

— – 75 – 60

dB

Input conversion noise voltage

VMin.

—

20.0

40.0

µ Vrms

CTL switch level

VTH

1.0

2.0

3.0

V

Input impedance

ZIN

110

140

165

kΩ

᭺Not designed for radiation resistance.

Conditions

—

—

f = 1MHz, THD = 0.5%

f = 1kHz, VIN = 3.0dBm

f = 1kHz, VIN = 3.0dBm

f = 10kHz, VIN = 3.0dBm

30kHz LPF, Rg = 2.2kΩ

—

—

•Ciruit operation

The BA7632AF makes it easy to construct a decoder

for the scrambled pay channels. They have been

designed specifically for audio signal decoding. As

shown in the application examples in Figs. 1 and 2,

there are inputs for TV, VCR, decoder, and AUX, to

cover a wide range of applications. When the AUX

input is not used, by setting CTL5 to “L”, the system

construction becomes the same as that of the

BA7630S, and the BA7630S switching logic can be

used as is.

3

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