Model VHFTV-25-H
25 Watts Gold-MOSFET VHF TV Pallet Amplifier The VHF TV-25-H is a linear Class AB Pallet
Amplifier featuring a Gold Metalized LDMOS
Transistor with 50-ohm input impedance. The
VHF TV-25-H provides 34 dB typical Gain with
NTSC Full-Field Red Power output in excess
of 25 Watts at -54 dBc IMD operating at +28
VDC. The VHF TV-25-H offers No-Compromise
performance for Band III VHF TV Transmitters
integrators. •
•
•
•
Freq.=170-230 MHz, Vsup.=+28Vdc, ID=2.77A
Min.
Power Out, P1dB
Typ.
Max.
Unit
50
Watt
Watt
Power Out, Pk-Sync
( @-54dBc IMD )
25
40
Power In,Pk-Sync
8
10
Power Gain @30W Pk-Sync
33
34
dB
-54
-58
dBc
3
Amp
IMD,Full Field Red,NTSCNA
Drain Current
13
34 dB Gain
Temperature Compensated Bias
•
OPERATING SPECIFICATIONS
Parameter
40 Watts Pk-sync @28 Vdc
dBm
Modular Construction for ease of Integretion!
Absolute Maximum Ratings
Parameter
Value
Unit
Input Valtagemax
+32
Vdc
Bias Current Max Q504
0.25
Amp
Bias Current Max Q503
3.0
Amp
Drain CurrentMax(total)
5.0
Amp
+41.0
DBm
Input VSWR
1.1:1
Insertion Phase
unit to unit
±5.0
o
Gain Variation
Unit to unit
±1.0
dB
Load Mismatch
F2 Second Harmonic
-15
dBc
All Phase angles,
Baseplate <40oC
F3Third Harmonic
-25
dBc
Storage Temperature
Baseplate Temp.
Baseplate Dimensions
0
1.4:1
Combined Video and Aural at full rate power!
Input PowerMax
+60
2”(5cm) x5”(13cm) x1.5”(4cm)
o
-40 to +105
o
+60
o
C
C
Baseplate TempMax
3:1
C
(VHFTV-25-H-a-3D2.1)
AEROCOMM Co.,Ltd • 89 & 89/1 Intamara41, Sutthisarn Road, Dindaeng, Bangkok 10400 THAILAND
Email : aerocomm@aerocommthailand.com • Web : www.aerocommthailand.com
Tel : (662) 6938300-2, (662) 6937880-1 • Fax : (662) 6938304
Specifications contained herein are subject to change without notice. Aerocomm Co., Ltd. assumes no liability for the use of this information.
Products manufactured in Thailand
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