PCF5077T Просмотр технического описания (PDF) - Philips Electronics

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производитель

PCF5077T

Power amplifier controller for GSM and PCN systems

Philips Electronics 

Philips Semiconductors

Power amplifier controller for GSM and

PCN systems

Preliminary specification

PCF5077T

Application in mobile stations

Using a directional coupler with 16.5 dB attenuation

produces a sensor signal between 100 mV and 3 V below

the diode forward voltage at pin VS for the PA output

power range of 8 to 36 dBm.

The sensor voltage of 3 V at pin VS corresponds to the

maximum DAC output voltage. The power range that can

be controlled is therefore not limited by the sensor voltage

input VS and higher power levels can be controlled with

the control loop switched on.

handbook, full pagewidth

antenna

sensor

C2

8.2 to 39 pF

RF POWER

AMPLIFIER

RF

D1

R1

1 kΩ

VS 1

2

3

4

TRIG 5

6

PD 7

C3 CLK13 8

33 pF

16

15 VINT(N)

C1

14 VINT(O) 120 pF

13 VSSA

PCF5077T 12 VSSD

DATA

11

CLK

10

STROBE

9

3-wire

serial

bus

MGK911

Fig.10 Application diagram for mobile stations.

1997 Nov 19

18

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