1. Product profile

1.1 General description

A 600 W LDMOS RF power transistor for broadcast Doherty transmitter applications. The

excellent ruggedness of this device makes it ideal for digital and analog transmitter

applications.

[1]

Depending on selected channel.

[2]

Depending on exciter used.

[3]

PAR (of output signal) at 0.01 % probability on CCDF; PAR of input signal = 9.5 dB at 0.01 % probability on

CCDF.

1.2 Features and benefits



High efficiency



High power gain



Excellent ruggedness (VSWR

 40 : 1 through all phases)



Excellent thermal stability



Integrated ESD protection



One Doherty design covers the full bandwidth from 470 MHz to 860 MHz



Internal input matching for ease of use



Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances

(RoHS)

1.3 Applications



Broadcast transmitter applications in the UHF band



Digital broadcasting

BLF888D; BLF888DS

UHF power LDMOS transistor

Rev. 4 — 18 February 2016

Product data sheet

Table 1.

Application information

Test signal

f

PAR

(MHz)

(W)

(dB)

(%)

(dBc)

(dB)

DVB-T (8k OFDM)

470 to 860

115 to 134 [1]

17

40 to 48 [1]

38 to 44 [2]

8 [3]