2.2. Functional Description
2.2.1. Forward Path Amplifier
The SignalOn Forward Path Amplifier is an electronically adjustable amplifier, and is intended for CATV and other providers
requiring low distortion/noise signal amplification in the forward path (50 to 1000 MHz). Figure 6 shows a circuit block diagram
for the Forward Path Amplifiers. Recessed push buttons located on the front panel are used to increment or decrement the
signal without signal interruptions.
2-2
SignalOn
®
Series – Forward Path Amplifier Products – Installation & Operation Manual
CHAPTER 2: PRODUCT DESCRIPTION
ADJUSTABLE
EQUALIZER
ADJUSTABLE
ATTENUATOR
CONTROL
VOLTAGES
SERIAL
DAC
MICROPROCESSOR
PUSH-PULL
AMPLIFIER
15 dB – 20 dB AMP.
22 dB – 30 dB AMP.
(APPROX.)
POWER-DOUBLER
AMPLIFIER
21.5 dB
(APPROX.)
TEST POINT
#1
TEST POINT
#2
RF
IN
RF
OUT
-20 dB
-20 dB
TILT INCREMENT
GAIN INCREMENT
GAIN DECREMENT
TILT DECREMENT
Figure #2: Adjustable Gain Amplifier Schematic
Figure #3: Forward Path Amplifier Schematic
Forward Path Amplifier
RF
OUTPUT
MON OUT
-20 dB
MON IN
-20 dB
AMP
AMP
RF
INPUT
EQ
ATTN
