LA8519M Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA8519M

I/O Switch/Voice Signal-Processing IC for Cordless Telephones

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

LA8519M

Notes

30

CE

• Chip enable input

31

DATA

• Data input

32

CLOCK

• Clock input

33

RESET

• Reset

Power on reset.

Equivalent circuit

VCC

100 kΩ

30

31

1 kΩ

32

33

1.5 V

Logic

4.7 kΩ

• Pad control. The gain control based on line

current and the BN switching operating current

34

PAD C

can be controlled by connecting this pin through a

34

resistor to either ground or S-VCC (pin 47).

22 kΩ

S-VCC

VSP

50 kΩ

REF

• Muting control. This pin switches the transmitted

audio and DTMF signals in the transmitter system

35

35

MUTE

and the KT and received signals in the receiver

1 kΩ

system. (Switches SW2 and SW3 in the block

diagram.) When low, the DTMF and KT signals

are enabled.

VSP

37

36

RV-NF

• Receiver amplifier noise figure connection

37

RV-OUT1

• Receiver amplifier 1 output

VSP

38

RV-OUT2

• Receiver amplifier 2 output

36

REF

38

10 kΩ

10 kΩ

Continued on next page.

No. 6471-13/29

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