Zhejiang BC&TV Technology Co., Ltd.Zhejiang BC&TV Technology Co., Ltd.Description
The CATV Optical Receiver is designed for FTTB networks ONU side to receive the 1550nm video signal.
The receiver integrates a WDM and PD, it can fit together with xPON (Passive Optical Net) SFF transceiver or PtoP optical transceiver to fulfill triplay function for FTTB networks.
The receiver contains an Automatic Gain Control(AGC) circuit to maintain the output level over an input optical power of -6dBm~+2dBm.
The receiver contains an Amplitude Equilibrium circuit to offer 3dB tilt over the frequency band of 45Mhz~1000Mhz to offset the high frequency' attenuation of cable.
Features：
● Integrated WDM and analog PD
● -20 ℃~+70 ℃ operating ambient temperature
● High performance InGaAs PIN
● High responsivity, High linearity, High Isolation
● Input optical power monitoring
● RF output level monitoring
● Low power consumption
● Low receiving optical power
● Temperature monitoring
● Built in AGC function of receiver enables RF output tolerance in 2dB even when optical input power various from -6dBm to +2dBm
● -6dBm~+2dBm AGC dynamic Range
● 6dB tilt from 45Mhz~1000Mhz
● The I2C interface
● RoHS Compliant
Absolute Maximum Ratings
|
parameter |
Symbol |
Unit |
Min |
Typ |
Max |
Note |
|
Storage Temperature Range |
Ts |
oC |
-40 |
|
+85 |
|
|
Operating Temperature Range |
To |
oC |
-20 |
|
+70 |
|
|
Relative Humidity |
RH |
% |
5 |
|
95 |
|
|
Fiber yield strength |
- |
kgf |
|
1 |
|
|
|
Fiber bend radius |
- |
mm |
|
30 |
|
|
Recommended Operating Conditions
|
parameter |
Symbol |
Unit |
Min |
Typ |
Max |
Note |
|
DC Voltage |
Vcc |
V |
+4.8 |
+5 |
+5.2 |
|
|
Total Current |
Icc |
mA |
|
|
450 |
|
|
Power Consumption |
Pcon |
W |
|
|
3.3 |
|
Specifications
|
parameter |
Symbol |
Unit |
Min |
Typ |
Max |
Test condition |
|
Electrical Characteristics |
||||||
|
Frequency Range |
Fop |
MHz |
45 |
|
1000 |
|
|
RF Output Level |
Lo |
dBuv |
|
102 |
|
Note 1 |
|
Flatness In Band |
|
dB |
|
±1 |
±1.5 |
|
|
Tilt In Band |
|
dB |
|
6 |
7 |
|
|
Output Return Loss |
Rl |
dB |
14 |
|
|
|
|
Output Impedance |
Zo |
Ω |
|
75 |
|
|
|
CNR |
CNR |
dB |
51 |
|
|
Note 2 |
|
CSO |
CSO |
dB |
60 |
|
|
Note 3 |
|
CTB |
CTB |
dB |
60 |
|
|
Note 3 |
|
Optical receive Characteristics |
||||||
|
AGC Dynamic Range |
PAGC |
dBm |
-6 |
|
+2 |
Note 4 |
|
Input Optical Power |
Popt |
dBm |
-8 |
|
+2 |
|
|
Optical Return Loss |
|
dB |
50 |
|
|
|
|
wavelength Reflect |
l1 |
nm |
1260 |
1310 |
1360 |
|
|
wavelength Reflect |
l2 |
nm |
1480 |
1490 |
1500 |
|
|
wavelength pass |
l3 |
nm |
1540 |
1550 |
1560 |
|
|
Isolation Com-Pass |
l1 |
dB |
30 |
|
|
|
|
Isolation Ref-Pass |
l1 |
dB |
50 |
|
|
|
|
Isolation Com-Pass |
l2 |
dB |
30 |
|
|
|
|
Isolation Com-Ref |
l3 |
dB |
20 |
|
|
|
|
Insertion Loss Reflect |
l1 |
dB |
|
|
1 |
|
|
Insertion Loss Reflect |
l2 |
dB |
|
|
1 |
|
|
Insertion Loss pass |
l3 |
dB |
|
|
1 |
|
Note1: Optical Input Power:-6dBm,855.25 MHz, OMI=3.3%
Note2: Optical Input Power:-1dBm, 98 PAL-D channels A test standard, OMI=3.3%
Note3: Optical Input Power: -1dBm, 98 PAL-D channels A test standard, OMI=3.3%
Note4: Optical Input Power:-6dBm~+2dBm,855.25Mhz,OMI=3.3%,Output level is 102dBuV±2dB
Connector Type
|
Connector |
Style |
Note |
|
RF Output |
Imperial F Type Female or Metric F Type Female |
Optional |
|
Optical Input |
SC/APC |
Optional |
|
Optical output |
SC/PC |
Optional |
Pin Description
|
Pin |
Name |
Description |
Note |
|
|
1 |
VDD |
+5v |
≤600mA |
|
|
2 |
GND |
Ground |
|
|
|
3 |
SCL |
Serial Clock（fSCL＜20kHz） |
|
|
|
4 |
SDA |
Serial Data Address Input/Output |
|
|
I2C Description
|
parameter |
Description |
Note |
|
RF Offset |
RF Output Level Control |
|
|
TEMP |
Module internal temperature monitor |
-55℃~+125℃ |
|
VPDMON |
1550 photo-diode monitor voltage |
-10 dBm ~+3 dBm |
|
RFMON |
RF power voltage monitor |
90dBuV~110dBuV |