8507

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

6 of 5

www.unisonic.com.tw

QW-R123-006.C



APPLICATION CIRCUIT (HAND SET)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

33K

TO TX

Modulation

104

5.6K

132

101

120K

39K

473

33K

22µF

2.2µF

1µF

8.2K

223

103

2.2K

MIC

REG

+

+

+

3.3K

51K

Comp

Filter

Amp

Exp

REG

LOGIC

Compressor

Mute

Expander

Mute

Expander

input

104

47K

+

10K

33K

390K

473

Speaker

Vcc

+

47µF

2.2µF

473

Data output

0.47µF

10µF

+

+

-

-

-

-

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.