BGY284 데이터 시트보기 (PDF) - Philips Electronics

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BGY284

power amplifier with integrated control loop for GSM850, EGSM900, DCS1800 & PCS1900

Philips Electronics 

Philips Semiconductors

power amplifier with integrated control loop for

GSM850, EGSM900, DCS1800 & PCS1900

INTERNAL CIRCUIT

RFin,LB

850/900 MHz PA

output

match

biasing

power

sense

Preliminary specification

BGY284

RFout,LB

VDAC

+

-

VSTAB

vTXon

vband

Power

controller

*

Logic

control

*

biasing

power

sense

RFin,HB

output

match

1800/1900 MHz PA

BGY284

2003 Aug 20

Fig.2 Internal circuit

4

RFout,HB

* = pull down resistor

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