PBL3852 查看數據表（PDF） - Ericsson

零件编号

产品描述 (功能)

比赛名单

PBL3852

Universal Transmission Circuit

Ericsson  

PBL 3852

Mute

R21 DC-control

R20

(+Line)

R24

6

5

1

C13

13

17

+

12

C12

R25

_

+

+

R22

Ref. DC

supply

DC

supply

PBL 3852

Ref.

18

9

8 11 3

2

7

10

15

16

14 4 +

C5

C8

R23

R10

D1

R3 R4

C4

DC1 DC2

R9

R11

R18

Power C2

C3

R12

down

+

+

R5 R6

R7

R8

R13

R17

C6 C7 +

R19

+

C9

C10

(-Line)

DTMF input

R14 R15

R16

Component list for application with standard line length regulation, 2x400Ω line feed and soft clipping.

R1 = -

R2 = -

R3 = 100Ω

R4 = 9.1k

R5 = 33k

R6 = DTMF level adj.

R7 = 75Ω

R8 = 6.8k

R9 = 620Ω

R10 = 6.2k

R11 = 6.2k

R12 = 130Ω

R13 = 2.4k

R14 = 470k

R15 =330k

R16 =2.4M

R17 =13k

R18 = 62k

R19 = 910Ω

R20 = -

R21 = -

R22 = 150Ω

R23 = 17k

R24 = 200Ω

R25 = 200Ω

C1 = -

C2 = 47µF

C3 = 47µF

C4 = 150nF

C5 = 47nF

C6 = 100nF

C7 = 2.2µF

C8 = 47nF

C9 = 47µF

C10 = 15nF

C11 = -

C12 = 1µF

C13 = 1µF

Without softclipping: Remove following components C5, C7, R8 and R10

17k

Sweden: Alter following values R14 = 33k, R15 = 20k, R16 = 90k, R21= 130k

Figure 32. Application with standard line length regulation, 2x400Ω line feed and soft clipping.

20

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