SAN3021

4/5

sames

sames

sames

sames

7 Application schematic:

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

A

B

C

D

A

B

C

D

The information furnished here by SAMES is believed to be correct and accurate. However, SAMES shall not

be held liable to any party for any damages including but not limited to personal injury, property damage, loss of

profits, loss of use, interuption of business or indirect, special, incidental or consequential damages, of any kind,

in connection with or arising out of the furnishing, performance or use of the technical data. No obligation or

liability to any third party shall arise or flow out of SAMES rendering technical or other services.

OSC

R4

R3

R2

R1

C4

C3

C2

C1

HS/DP

MO

MODE

LLC

CS

CI

RR

AGND

RO2

STB

RO1

RI

LI

FCI

LS

M2

M1

IC1

SAMES Telecom

3rd March 1997

Date :

of

Single Chip Telephone Application Circuit

Rev :

Sch.

Sh

Pn#

SAN3021

01

01

off

5

6

8

SW1_b

Q6

BC549

Q5

BC549

Q4

BC 547B

D4

15V

D11

5V6

+

CC17

10U

+

CC18

10U

+

CC14

100u/25V

+

C8

10u/25V

+

C10

10u/16V

+

C9

470u/16V

+

C14

220u/25V

C12

X

C17

10n

RR23A

1K

RR23B

2K

RR25

12K

RR24

27K

RR21

3K

R25

110K

R24

360K

R21

6..10K

R23

2K

R26

1K1

R17

100K

R15

330K

R7

220K

M2

M1

LI

Applications Using Dynamic Handset Microphone

in one-piece telephones.

applications.

B. Amplifier for general

23

24

27

microphone as ringer

A. Using dynamic handset

27

3

2

23

24

5

16

15

14

13

20

19

18

17

12

11

26

4

9

22

8

10

7

25

6

28

1

21

1.1