The SQGB3040R is a wind bandwidth return path gain block. It provides high gain, low noise, and excellent linearity from 5 to 300 MHz. It is optimized for exceptionally low distortion and low noise figure in a 75 Ω GaAs amplifier circuit. It provides excellent input and output return loss over the CATV return path HFC infrastructure.
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. It typically provides 3 dB noise figure, 64 dBm OIP2 and 43 dBm OIP3 while drawing 190 mA DC current at 12 V bias.
The device package is complied with standard SOT-115J.
Features
l 40 dB Gain
l 12 V DC Bias
l 50 dBmV/CH Output Power Level @ 30dB MER
l Wide Bandwidth for DOCSIS 3.1
l Excellent Linearity
l Superior Return Loss Performance
l Extremely Low Distortion and Low Noise
l Optimal Reliability
l Unconditionally Stable Under All Terminations
l 210 mA Max. at 12 VDC
Applications
l 5 to 300 MHz CATV Return Path Amplifier Systems
Electrical Specifications: T = +25 °C, V = 12 V, Zin = Zout = 75 Ω
Parameter | Units | Min. | Typ. | Max. | Test Conditions |
Gain | dB | - | 40 | - | 5 - 300 MHz |
Flatness | dB | - | - | ±0.25 | 5 - 300 MHz |
Noise Figure | dB | - | 3.0 | - | 5 - 300 MHz |
Reverse Isolation | dB | - | 40 | - | 5 - 300 MHz |
Input Return Loss | dB | - | 26 | - | 5 - 300 MHz |
Output Return Loss | dB | - | 23 | - | 5 - 300 MHz |
Total Current Consumption (DC) | mA | - | 190 | 210 | + 12 V |
OIP3* | dBm | - | 43 | - | PIN = - 41 dBm |
OIP2* | dBm | - | 64 | - | PIN = - 41 dBm |
Output Power at 30 dB MER** | dBmV/ch | - | 50 | - | 16 Channels, 5 - 205 MHz |
* f1 is the frequency of the lower of the two input tones. f1 = 5 to 205 MHz. Higher tone f2 = f1 + 3 MHz.
OIP2 is measured at intermodulation frequency f1 + f2.
** Modulation Error Ratio, 64 QAM 5.12 MS/s.
Handling Procedures
Please observe the following precautions to avoid damage:
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 |
RF Input Level | dBmV | 60 |
DC Supply Over-Voltage (5 minutes) | V | 15 |
Storage Temperature | °C | - 40 to +100 |
Operating Mounting Base Temperature | °C | - 30 to +100 |
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)
Ordering information
Description | Part Number |
SQGB3040R Return Path Gain Block | 9940000038 |
苏公网安备32050902102581号