BLF881_BLF881S_2

© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 02 — 10 February 2010

7 of 18

NXP Semiconductors

BLF881; BLF881S

UHF power LDMOS transistor

7.2 Broadband RF figures

7.2.1 DVB-T

7.3 Ruggedness in class-AB operation

The BLF881 and BLF881S are capable of withstanding a load mismatch corresponding to

f = 860 MHz at rated power. Ruggedness is measured in the application circuit as

described in Section 8.

common-source broadband test circuit as described in

Section 8.

common-source broadband test circuit as described in

Section 8.

Fig 7.

DVB-T PAR at 0.01 % probability on the CCDF

and drain efficiency as function of frequency;

typical values

Fig 8.

DVB-T power gain and shoulder distance as

function of frequency; typical values

f (MHz)

400

900

800

600

700

500

001aal080

7.0

8.0

9.0

PAR

(dB)

6.0

30

40

50

(%)

20

PAR

f (MHz)

400

900

800

600

700

500

001aal081

19

21

17

23

25

(dB)

15

−30

−20

−40

−10

0

(dBc)

−50