Olson Technology OTPN-3850-SA - Manual (Page 4)

025-000641 REV X5 Page 4 Olson Technology, Inc.
BLOCK DIAGRAM
Olson Technology OTPN-3850-SA
3.85GHz Wideband FTTH PON Receiver
Notes:
1) Bandwidth = 50MHz to 3,850MHz
2) Flatness 50-870MHz = ±1.5dB
950-3,850MHz = ±2.5dB
Any 20MHz = ±0.5dB
3) CATV Output Level is +23dBmV/Ch Typical at 3% OMI/Ch
4) L-Band Output Level is +13dBmV/Ch or Less (L-Band signals
require much lower CNR than CATV signals, thus can operate
at lower RF levels.)
5) AGC Range ±2dB for Opt. In from 0 dBm to -6dBm
6) At -4dBm Optical Input, Min. CATV performance is;
CNR = 47dB CSO = -55dBc CTB = -55dBc
7) Loss of Light Threshold = -10dBm ±1dB (1550nm power only)
Power
Filtering
+12 to +16
Volts DC
DC-DC
Converter
+5V Output
+12 to +16V
+5V
-5V
FWDM
1310, 1490, 1550nm
1310 & 1490nm
1550nm Optical In
Optical Out
Optical
Level
Detect
PIN Diode
A ttenuator
50-3,850 MHZ
RF Output
50-3,850 MHz
“F” Connector
Attenuator Control Voltage
Light Level
Optical Level
Control
Circuitry
Alarm
Out
C
E
Optical
Alarm
(-10dBm)
Photodiode
Amplifier
Amplifier