LC508 Просмотр технического описания (PDF) - Gennum -> Semtech

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производитель

LC508

Class A Amplifier with 3 Independent Gain Blocks

Gennum -> Semtech 

5 RMIC

6

7

2

10

33K

4

3

9

All external resistors in ohms, all capacitors in µF unless otherwise stated

Fig. 2 Functional Schematic

8

RE

1

VB=1.3 VDC

5 RMIC

10

6

RL = 1K

R S ≈ 3.9k

CS

0.22

4

-A

-B

-C

7

RE

0.015

2

3

10 9

18

50K

2.7K

50K

R GT

R1

R VC

All resistors in ohms, all capacitors in µF unless otherwise stated

Gain of Stage A

=

20 Log10

( RGT )

RS

Gain of Stage B = 20 Log10 (

RVC )

R1

47

0.033

Gain of Stage C

=

20 Log10

( RL )

RE //47

Fig. 3 Typical Hearing Aid Application

3

500 - 61 - 12

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