LMP2003 prelim. 4/99 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk absolute maximum supply voltage maximum heatsink temperature 1 absolute load vswr storage temperature 10v 100c :1 C65 to 150c vhf silicon mosfet power amplifier module features ? high output power (5.5w min.) ? high efficiency (> 38%) ? low intermodulation distortion (< -25dbc) ? operation from 7.2v supply ? integral enable / disable control ? unconditionally stable for all loads up to 5:1 vswr ?50 w w input/output impedance ? rugged construction ? copper heatsink for excellent thermal dissipation absolute maximum ratings (t case = 25c unless otherwise stated) applications ? pmr / pamr / lmr systems. 5.5w , 7.2v 220mhz 222mhz notes 1. output power may be reduced if the temperature rises above this figure.
LMP2003 prelim. 4/99 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk parameter min. typ. max. unit 6 7.2 8.4 20 75 100 -30 +80 v % c c operating conditions all performance characteristics that are quoted in this specification are for the following conditions. supply voltage humidity heatsink temperature ambient temperature 44.0 45.0 56.0 17.0 19.50 3.71 34.19 36.73 39.27 6.25 8.79 11.33 16.41 13.87 1.6 1.0 3.0 2.3 v supply enable rf in ground ground ground v supply ground rf out mechanical data (dimensions in mm)
LMP2003 prelim. 4/99 semelab plc. telephone +44(0)1455 556565. fax +44(0)1455 552612. e-mail: sales@semelab.co.uk website: http://www.semelab.co.uk parameter test conditions min. typ. max. unit 220 222 4.4 5.5 7 -3 0 -25 0.1 -10 -39 -33 25 35 80 1.0 2.0 0.8 2 1 5:1 mhz w dbm dbc w db dbm dbm dbc dbc db ms v v a ma electrical characteristics (t amb = -30c to +80c) frequency range rated output power (cw) input power for rated output cw power imd products at rated output power minimum output power input return loss low frequency conducted emissions high frequency conducted emissions rejection of 2nd harmonic (440 - 444mhz) rejection of 3rd and higher order harmonics disabled output power reduction time to reach disabled output power reduction state pa enable vih pa enable vil supply current at rated cw output power standby supply current vswr load mismatch tolerance the typical rated power of 5.5w is quoted for a supply voltage of 7.2v. minimum rated power is for a supply voltage of 6v (see note 1) see note 2 see note 3 conducted emissions below 1ghz not including harmonics of the input frequency and intermodulation distortion products. conducted emissions between 1 - 4 ghz not including harmonics of the input frequency and intermodulation distortion products. the harmonic level is measured relative to the power at the fundamental frequency. the harmonic level is measured relative to the power at the fundamental frequency. with pa disabled, relative to rated output power. time to switch once the control signal has come within 100mv of its final logic state. module enabled module disabled no rf drive unconditionally stable under all phases notes 1. output power at 6v measured with maximum input power for rated output cw power. 2. all intermodulation (imd) specifications are quoted for a two-tone test. the tones are of equal amplitude with 600hz frequenc y spacing. the amplitude of each tone is 6db below the rated pep to give a composite output power of 5.5w pep. the level of imd is measured in dbc relative to one of the two fundamental tones at the output of the power module. 3. the power delivered by the power amplifier module is controlled by varying the input drive level. the output power is contin uously variable over the quoted power range, i.e. the rated output power to the specified minimum power.
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