The SQOB300R Optical Receive Receiver Block is is a high dynamic range optical reverse receiver block with amplifier circuits. It has a single-mode optical input suitable for 1260 to 1620 nm wavelengths, a terminal to monitor the photo diode current and an electrical output having a characteristic impedance of 75 Ω.
The device is ideally suited for use in CATV return path applications, including DOCSIS 3.1 systems where low distortions and low noise figure are required.
Features
l 5 - 300 MHz Bandwidth Supports the return Path application, wide bandwidth for DOCSIS 3.1
l +5 V Amp Bias, +12 V PD Bias
l Extremely Low noise
l Excellent flatness
l Standard CATV outline
l Rugged construction
l RoHS Compliant
Applications
l Cable TV optical transmission systems operating in the 5 to 300 MHz reverse path.
Specifications: T = +25 °C, Vamp = +5 V, VPD = +12 V, Z = 75 Ω
Table 1. Electrical/Optical Characteristics
Parameter | Unit | Min | Typ | Max | Symbol |
Optical Power | dBm | -- | -- | +1 | PIN |
Optical Return Loss | dB | 40 | -- | -- | RLOPT |
DC Power +5V Amp Bias, (Pin 2) +12V PD Bias, (Pin 6) |
mA mA |
-- -- |
-- -- |
160 3 |
ICCA ICCP |
Wavelength | nm | 1260 | 1310/1550 | 1620 | λ |
Responsivity | mA/mW mA/mW | -- -- | >0.8 at 1310 nm >0.9 at 1550 nm | -- -- |
-- |
PDI Monitor Voltage | V/mA | -- | 1.0 | -- | VMON |
Dissipation | W | -- | -- | 0.85 | PDISS |
Table 2. RF Characteristic
Parameter | Unit | Min | Typ | Max | Symbol |
Frequency Range | MHz | 5 | - | 300 | BW |
Gain (Ref @ 40 MHz) | dB | 28 | - | 30 | G |
Gain Stability (- 30 to + 85°C) | dB | -0.5 | - | +0.5 | GST |
Ripple (5 - 300 MHz) | dBpk - pk | - | 1 | 1.2 | - |
Tilt | dB | - | 0 | 1.5 | - |
RF Output Level 2 | dBmV / ch | 47 | 49 | RFOUT | |
Output Return Loss (5 - 200 MHz) (201 - 300 MHz) |
dB | - - | -22 - |
- -18 |
RL |
Equivalent Input Noise | pA/√Hz | - | - | 2 | EIN |
Discrete Second-Order 1 | dBc | - | -65 | -55 | DSO |
Discrete Third Order1,2 | dBc | - | -70 | -80 | DTO |
2. Optical Input = 0 dBm, OMI = 20%
Handling Procedures
Please observe the following precautions to avoid damage:
Fiberglass optical coupling
Maximum tensile strength = 5 N. Minimum bending radius = 35 mm.
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices.
Absolute Maximum Ratings
Parameter | Unit | Rating |
Storage Temperature | °C | - 40 to +85 |
Operating Mounting Base Temperature | °C | - 30 to +85 |
Humidity at 85 °C | % | 85 |
Caution! ESD sensitive device. 
RoHS
Alarm: Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied.
Package Drawing (Dimensions in millimeters)
Outline Drawing (dimensions are in inches & mm)
Pinning:
PIN | Description |
1 | GND |
2 | +5V |
3 | GND |
4 | RF OUT |
5 | GND |
7 | +12V |
8 | PD MONITOR |
9 | GND |
Description | Part Number |
SQOB300R Optical Receiver Block, with SC/APC Connector | 9945000009 |
SQOB300R Optical Receiver Block, with FC/APC Connector | 9945000010 |
苏公网安备32050902102581号