PBL38813 Просмотр технического описания (PDF) - Ericsson

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PBL38813

Voice-switched Speakerphone Circuit with built in loudspeaker amplifier

Ericsson  

PBL 388 13

Maximum Ratings

Parameter

Speech switch supply current

Speaker amplifier supply current

Voltage pin 1-14

Operating temperature

Storage temperature

Symbol

ID

I+L

TAmb

TStg

Min

-0,5

-20

-55

Max

Unit

10

mA

130

mA

Vpin15+0.5 V

+70

°C

+125

°C

ID

+

15 V +

V+

RxDetin 10

PBL 388 13

RxDetout 9

GND

16

100nF

V Ref

+

V Txout

R Txout

V+

ID

10 µF

+

+

100µF/16V

15 V+

4 Txout

F2out

R F2 out

10 µF C Tx

+

I Txin

4.7 µF

+

V Txin

1 µF +

5 TxDetin PBL 388 13

3 F2out

+Tx

2

in

-Tx

1

in

7

N Det

TxDetout

6

CMP

8

Rx Detout

9

C TxDet +

0,1µF

CRxDet +

GND 16

Rxout 11

Rx Detin 10

F5out 12

+Rx in

13

-Rx in

CTR 14

24

R CTR

10 µF

+

VRxout

R Rxout

C Rx

10 µF

+

1 µF

+

I Rxin

F5out

R F5 out

+ 1 µF

VRxin

NDet

VNDet

I TxDet

V TxDet

I RxDet

VCMP

VRxDet

I CTR

VCTR

Input

Vin 1 µF

0.015µ used only

with inductive load

23 LSPin

PBL 388 13

RE

R DC

22

21

LSP 18

VOL 19

+ L 20

– C 17

GND

16

IVOL

50Ω

Load

V out

100 µF

I+L + 16 V

+ 1000 µF

16 V

+ VA

Power

amplifier

supply

-

2

Figure 2. Isolation and

measurement of VRef.

Ref fig No.2.

Figure 3. Test circuit.

Reference figure No. 3.

Figure 4. Test circuit.

Reference figure No. 4.

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