User's Manual

MARK-IV BROADBAND AMPLIFIERS
User’s Manual
7 / 11
REV3 01/25/06
Section D. SPECIFICATIONS
ELECTRICAL SPECIFICATIONS @ VDD=+28VDC, T=25°C, 50Ω System
UHF Band
400 – 512 MHz
800 MHz Band
806 - 870 MHz
Model M4-BBDA-U M4-BBDA-8
Parameter Symbol F
L
F
M
F
H
F
L
F
M
F
H
Unit
Maximum Operating Output
Power, limited by ALC.
P
OP
5 15 Watt
P1dB G.C.P. P
1dB
25 50 Watt
Small Signal Gain SSG 38 45 46 40 45 45 dB
Small Signal Gain Flatness
∆G
±0.5 ±0.75 dB
Input/Output VSWR S11/S22 1.5:1 typ. 1.5:1 typ. -
Harmonics H < -13 < -13 dBm
Noise Figure NF 7 typ. 7 typ. dB
Spurious Signals Spur -60 -60 dBc
Supply Current
(UHF@4W, 7-800@12W composite
power)
IDD 2 4 Amps
Operating Voltage VDD +28 +28 Volts DC
ENVIRONMENTAL CHARACTERISTICS & PROTECTIONS
Parameter Symbol Min Typ Max Unit
Operating Case Temperature Tc 0 +50 °C
Storage Temperature Tstg -40 +85 °C
Input Overdrive +6dBm for -U model,
+10 dBm for -8 model
Load VSWR @ nominal output
power
Infinite @ all load phase & amplitude
Thermal Overload
85°C shutdown
Monitoring Functions
Parameter Typical Specifications
Forward Power Monitor
Continuous Analog voltage relative to forward power via RMS detector.
-U Model: FWDM: 13 - 43dBm @ 0 - 5V (200mV/dB). 28dBm output =
V
FWD
= 2.5VDC
-8 Model: FWDM: 17 - 47dBm @ 0 - 5V (200mV/dB)
Reverse Power Monitor
Continuous Analog voltage relative to reflected power via RMS detector.
-U Model: REVM: 6 - 36dBm @ 0 - 5V (150mV/dB)
-8 Model: REVM: 12 - 42dBm @ 0 - 5V (150mV/dB)
Mute Enable: TTL “Low”. Disable: TTL “High”