vhfamp50 50 w vhf pallet amplifier

VHFAMP50
50 W VHF PALLET AMPLIFIER
FEATURES & APPLICATIONS
Des�gned for analog and d�g�tal TV transm�tters and transposers th�s RF ampl�f�er �ncorporates, s�mple des�gn
based on m�crostr�p technology, PTFE PCB, planar balun and push-pull LDMOS to enhance ruggedness and
rel�ab�l�ty.
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Motorola LDMOS Technology
Class AB operat�on
Analog TV Broadcast
DVB-T, DVB-H, ATSC 8VSB
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Broadband, no tun�ng requ�red �n VHF band
Output Power > 50W @ – 60 dBc m�n IMD / Three Tone Test
Input & Output Impedance= 50Ω - 50Ω
48/49 Volt, 48 Volt Nom�nal
Ga�n : 19 dB m�n
Dev�ces: MRFGV2150
Techn�cal Parameters
ABSOLUTE MAXIMUM RATINGS (Dev�ce Flange T = 70 °C)
Symbol
Vs
Is
Tstg
Tc
Ψ
Parameter
Value
50
4
-20 / +70
0 / +70
3:1 all phase angle
1
100
Voltage Supply
Current Supply
Storage Temperature Range
Operat�ng Case Temperature
VSWR max
Max Input Power
Max CW Output Power
Un�t
V DC
A DC
°C
°C
W pep
Watt
ELECTRICAL SPECIFICATIONS (Base Plate T. = 45 °C, 50 Ω loaded, Vd = 30 V)
Parameter (Symbol)
Bandw�th (BW)
Power Ga�n (Gp)
Power Output @1dB Compress�on
Pout Separate Ampl�f�cat�on (PV)
Pout Common Ampl�f�cat�on (PAV)
Intermodulat�on (IMD)
Pout 8VSB (P8VSB)
Pout DVB-T (PDVB)
Qu�escent Current (Idq)
@Pmax (Itot)
Input Return Loss (Irl)
M�n
175
18.75
75
70
50
Typ.
Max
230
19
80
80
60
-60
20
12.5
0.7
2
-20
-22
Un�t
MHz
dB
W
Wps
Wps
dB
Wrms
Wrms
A
A
dB
Pout = 50 W (CW)
Pref = 50 W (CW)
Referred to P�n= 0,8W (CW)
Sync. Compress�on 5% w�thout precorrect�on
Red f�eld IMD < -60 dBc w�thout precorrect�on
Three Tone -8,-10,-16 db @ 50W w�thout precorrect�on
Shoulder @ -36 dB w�thout precorrect�on
Pout = 10 W (CW)
Pout = 0 W – Total
50W P.sync. Black Level Aud�o + V�deo
Pout = 50 W CW
Pref = 50 W CW, f= 230MHz, load ,
Load M�smatch (Ψ)
Ga�n Flatness (FL)
Test Cond�t�ons
VSWR = 2:1 all phase angles
±0.25
dB
Pref = 50W CW, BW: 175-230MHz
VHFAMP50
50 W VHF PALLET AMPLIFIER
LAYOUT AND CONNECTIONS
D�mens�ons are �n mm.
Bostancı Yolu Cad. Keyap Çarşı S�tes� D-1 Blok No: 56 34775 Y.Dudullu - Ümran�ye - İSTANBUL / TURKEY • Tel: +90(216) 540 70 45 • Faks: +90(216) 540 70 46 • E-ma�l. �nfo@ona�r.com.tr