SQ Cable Device

The SQGB12XXD is a series of Hybrid Power Doubler gain block. They are optimized for exceptionally low distortion and low noise figure in a 75 Ω power doubler amplifier circuit. They 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 high output power are required.

The device package is complied with standard SOT-115J.

Features

l 32/30/28/25/22/20/18 dB Gain

l 24 V DC Bias

l 57 dBmV/CH Output Power Level @ 1200 MHz (22dB tilt)

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 440 mA Max. at 24 VDC

Applications

l 45 to 1200 MHz CATV Amplifier Systems

Electrical Specifications: T = +25 °C, V = 24 V, Z_in = Z_out = 75 Ω

Parameter	Units	Min.	Typ.	Max.	Test Conditions
Gain	dB	-	32	-	45 - 1200 MHz
			30
			28
			25
			22
			20
			18
Slope	dB	-	1.0	-	45 - 1200 MHz
Flatness	dB	-	±0.25	-	45 - 1200 MHz
Noise Figure	dB	-	5.5	-	45 - 1200 MHz
Reverse Isolation	dB	-	45	-	-
Input Return Loss	dB	-	16	-	45 - 1200 MHz
Output Return Loss	dB	-	16	-	45 - 1200 MHz
Total Current Consumption (DC)	mA	-	440	-	+ 24 V
Distortion Data 40MHz to 550MHz
CTB*	dB	-	75	-	45dBmV @ 40-550 MHz
CSO*	dB	-	71	-	45dBmV @ 40-550 MHz
XMOD*	dB	-	72	-	45dBmV @ 40-550 MHz

* 45dBmV @ 59 PAL D/K (analog) channels, flat. Or 57dBmV @ 1200 MHz, tilt extrapolated to 22.0 dB(79 NTSC (analog) channels + 111 digital channels (- 6 dB offset))

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
SQGB1218D GaAs Power Doubler Gain Block 1.2GHz 18dB	9940000030
SQGB1220D GaAs Power Doubler Gain Block 1.2GHz 20dB	9940000031
SQGB1222D GaAs Power Doubler Gain Block 1.2GHz 22dB	9940000032
SQGB1225D GaAs Power Doubler Gain Block 1.2GHz 25dB	9940000033
SQGB1228D GaAs Power Doubler Gain Block 1.2GHz 28dB	9940000034
SQGB1230D GaAs Power Doubler Gain Block 1.2GHz 30dB	9940000035
SQGB1232D GaAs Power Doubler Gain Block 1.2GHz 32dB	9940000036

1.2G PD SQGB12XXD series 1.2GHz GaAs Power Doubler Gain Block

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