GL6965 Просмотр технического описания (PDF) - Hyundai Micro Electronics

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GL6965

Telephone Speech Network with Dialer Interface

Hyundai Micro Electronics 

4. Side Tone Gain Control.

(1) Alternative application for side tone gin control

~

L1

+

~

VL

B/L

Circuit

0.47µF

2.2kΩ 330pF

0.47µF

220µF

620Ω

2.2kΩ

20

16

15

10

GL6965

-

L2

150Ω

1

2

3

7

18

19

43 Ω

2.2kΩ

15Ω

0.47µF

V

TIN

VRD

- The side tone gain is externally controlled by the resistor RSD (RS1+RS2)

- The maximum available control range of side tone gain is 0dB to 14 dB.

GL6965

RS2 5.6kΩ

RSD

RS1 1 kΩ

(2) Side tone gain, GSD to Resistor, RSD

RSD (RS1+RS2)

1k§ Ù

2k§ Ù

3k§ Ù

3.5k§ Ù

4k§ Ù

5k§ Ù

6k§ Ù

GSD

14.2dB

11.1dB

2.5dB

0.2dB

1.6 dB

5.4 dB

7.5 dB

(3) The side tone gain is

VRO

GSD=

20log( )

VL

(dB)

16

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