Crescend C5 Series Manuel - Sayfa 10
Amplifikatör Crescend C5 Series için çevrimiçi göz atın veya pdf Manuel indirin. Crescend C5 Series 17 sayfaları. Continuous duty power amplifier
Sayfayı YazdırFigure 2-2. C5 Series Amplifier, Rear View Right
2.5.
AMPLIFIER SUMMARY ALARM AND POWER CUTBACK CONTROL
The summary alarm and cutback control connections are made through separate filtered
feedthrough connectors on the back of the amplifier.
Table 2-1. Summary Alarm and Cutback Control Connections
PIN
FUNCTION
Summary
ALARM
Alarm
Partial
CTRL
Power
Cutback
External
SH/D
Power
Control
Copyright Crescend Technologies
DESCRIPTION
Indicates when:
1. The output power is low,
or
2. VSWR cutback is
activated, or
3. Thermal cutback is
activated
Used as a simple means of
cutting back output power
by a fixed amount (1-1.5
dB).
It is possible to reduce the
output power continuously
by up to 4 dB by connecting
a resistor between this pin
and ground.
10
CONDITION
Alarm: < 1 VDC
Normal Operation: > 8 VDC
(up to Vcc)
Alarm: < 1 VDC
Normal Operation: 4 - 5
VDC
Normal Operation – pin not
connected.
Cutback Mode – pin pulled
to ground. The output
power reduces by
approximately 1dB-1.5 dB.
Normal Operation – pin not
connected.
Power Control Mode – pin
pulled to ground through
resistor.
040003A001 Rev C
APPROPRIATE
LOAD
> 10 kOhm,
< 100pF
1.8 kOhm
between pin and
ground,
<500 pF
(TTL
compatible)
<10 Ohm,
< 100pF
Resistor value
0-50 kOhm,
<100 pF