2001 Nov 21

18

Philips Semiconductors

Product specification

Dual-band power amplifier controller for

GSM, PCN and DCS

PCF5079

12.3

Detected voltage measurement

RF GMSK

MODULATED

SIGNAL

MGU223

GSM: 39 pF

DCS: 8.2 pF

1 k

Ω

VDD

PCF5079

PROBE

Fig.16 Set-up for measuring detected voltage for 900 MHz and 1800 MHz working.

handbook, full pagewidth

−20

−15

−10

−5

5

10

15

Pin (dBm)

VVS1, VVS2

0

(2)

(1)

10

1

MGU224

Fig.17 Detected voltage as a function of incident power for 1PS79SB62 detector diodes.

(1) DCS.

(2) GSM.