The SQGB1228/30/32P is a Hybrid Push Pull gain block. It is optimized for exceptionally low distortion and low noise figure in a 75 Ω push pull amplifier circuit. It provides excellent input and output return loss over the 45 to 1200 MHz CATV HFC infrastructure.
The device is ideally suited for use in CATV applications where low distortion and low noise figure are required.
The device package is complied with standard SOT-115J.
Features
l 28/30/32 dB Gain
l 24 V DC Bias
l 44 dBmV/CH Output Power Level @ 1200 MHz
l Excellent Linearity
l Superior Return Loss Performance
l Extremely Low Distortion
l Optimal Reliability
l Extremely Low Noise
l Unconditionally Stable Under All Terminations
l 380 mA Max. at 24 VDC
Applications
l 45 to 1200 MHz CATV Amplifier Systems
Electrical Specifications: T = +25 °C, V = 24 V, Zin = Zout = 75 Ω
Parameter | Units | Min. | Typ. | Max. | Test Conditions |
Gain | dB | - | 28 | - | 45 - 1200 MHz |
30 | |||||
32 | |||||
Slope | dB | - | 1.0 | - | 45 - 1200 MHz |
Flatness | dB | - | 0.75 | - | 45 - 1200 MHz |
Noise Figure | dB | - | 6.0 | - | 45 - 1200 MHz |
Reverse Isolation | dB | - | 48 | - | - |
Input Return Loss | dB | - | 16 | - | 45 - 1200 MHz |
Output Return Loss | dB | - | 16 | - | 45 - 1200 MHz |
Total Current Consumption (DC) | mA | - | 350 | 380 | + 24 V |
CTB* | dB | - | 70 | - | 44 dBmV @ 1200 MHz |
CSO* | dB | - | 68 | - | 44 dBmV @ 1200 MHz |
XMOD* | dB | - | 68 | - | 44 dBmV @ 1200 MHz |
* 112 NTSC channels, flat.
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 | 75 |
DC Supply Over-Voltage (5 minutes) | V | 30 |
Storage Temperature | °C | - 40 to +100 |
Operating Mounting Base Temperature | °C | - 30 to +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)
Ordering information
Description | Part Number |
SQGB1228P GaAs Push Pull Gain Block 1.2GHz 28dB | 9940000027 |
SQGB1230P GaAs Push Pull Gain Block 1.2GHz 30dB | 9940000028 |
SQGB1232P GaAs Push Pull Gain Block 1.2GHz 32dB | 9940000029 |
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