SQGB3040R Reverse Gain Block

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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

*   fis the frequency of the lower of the two input tones. f1 = 5 to 205 MHzHigher tone f2 = f+ 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-Voltag(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)   











Description

Part Number

SQGB3040R Return Path Gain Block

SQGB3040R-M-011184

SQGB2535R Return Path Gain Block

SQGB2535R-M-011184


About Us

Shanghai Qianjin Electronic equipment Co., LTD was founded in 1991. It is a scale and specialized CATV equipment manufacturer with research, development and production. Our company has been identified as high-tech enterprises, strict compliance with international standards and pass GB / T 9001 quality management system certification.

Our good reputation and perfect product service system has won praise from customers. Products are sold to Europe, America, Asia and other countries and regions, as OEM / ODM supplier.



Contact

   Address: 4/F,Budliding No.2,401 Caobao Road Shanghai China

   Phone: 021-54973555

   Email: sales@sq-cabledevice.com