MH88632 Ver la hoja de datos (PDF) - Mitel Networks

Número de pieza

componentes Descripción

Fabricante

MH88632

Central Office Interface Circuit

Mitel Networks 

MH88632

Preliminary Information

MH88632

Z

10kΩ

Z

-

TX 25

+

GTX1 28

RTX

GTX0 27

10kΩ

Z

-

Z

+ 10kΩ

RX 26

GRX1 30

RRX

GRX0 29

10kΩ

TRANSMIT GAIN:

(Tip-Ring to Tx)

AV= -20log (0.5+5kΩ)

RTX

RTX =

5kΩ

10(-AV/20)-0.5

Example

RTX = 38kΩ; AV = +4dB

RECEIVE GAIN:

(RX to Tip-Ring)

AV= -20log (0.5 + 5kΩ)

RRX

RRX =

5kΩ

10 (-AV/20) -0.5

Example:

RRX = 4.6kΩ; AV = -4dB

Figure 3 - Gain Programming with External Components

2-244

Share Link: