QPL1821 75 19dB CATV Amplifier (50 1800MHz) Product Overview The QPL1821 is an ultra-linear, GaAs pHEMT, differential RF amplifier. The device features a cascode design which provides 19dB of flat gain along with very low distortion from 50MHz to 1.8GHz. This ultra-linear IC is designed to support Broadband CATV DOCSIS 4.0 applications, such as Nodes, Amplifiers, and Remote PHY Devices, as well as Fiber to The Home (FTTH), Home Gateways, and Cable Modems. The device is powered by a single 5V supply at 260mA which provides an output of 63dBmV TCP at an MER of 45dB. The QPL1821 is packaged in a 12-pin 5x5 2 mm Laminate Module. 5 x 5 12pin Laminate MCM Package Key Features Functional Block Diagram 50MHz to 1800MHz Operation 5V and 8V Operation Gain: 19dB Typical TCP: 63dBmV 5V TCP: 67dBmV 8V Noise Figure: 1.8/3.8dB 50/1800MHz Adjustable Bias Using External Resistors RoHS Compliant Applications DOCSIS 4.0 Amplifiers DOCSIS 4.0 Optical Nodes DOCSIS 4.0 Remote PHY Devices FTTH GPON and GEPON DOCSIS 4.0 Cable Modem and Home Gateways 5 x 5 12pin Laminate MCM Package Ordering Information Part Number Description QPL1821EVB-01 Evaluation Board QPL1821SB Sample bag with 5 pieces QPL1821SR 7 Reel with 100 pieces QPL1821TR13 13 Reel with 2500 pieces Data Sheet Rev B, April 20, 2022 Subject to change without notice - 1 of 14 - QPL1821 75 19dB CATV Amplifier (50 1800MHz) 0 Absolute Maximum Ratings Parameter Rating Supply Voltage (VDD) +10V Supply Current (IDD) 400mA Maximum Input Level +65 dBmV Operating Temperature Range -40 to +100C Storage Temperature Range 65 to +150C Maximum Junction Temperature +150C 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. Electrical Specifications (1) Parameter Condition Min Typ Max Unit Supply Voltage (VDD) 5/8 V Supply Current (I ) 260/350 mA DD Frequency Range 50 1800 MHz Gain 19 dB Gain Slope 1 dB Reverse Isolation 22 dB Input & Output Return Loss 50 1200MHz 20 dB Input & Output Return Loss 1200 1800MHz 18 dB At +63dBmV 5V and +67dBmV 8V Total Composite Output power. MER 45 dB 108MHz to 1791MHz, 280 Ch, SC-QAM, 10dB tilt, 0dB Offset Noise Figure 50/1800MHz 1.8 3.8 dB OIP2L +12dBm/tone output, f=53MHz, Full Band 90 dBm OIP2U +12dBm/tone output, f=53MHz, Full Band 65 dBm OIP3 +12dBm/tone output, f=6MHz, Full Band 40 dBm OP1dB 1800MHz 24.5 dBm Thermal Resistance JC 12 C/W Note: Typical performance at these conditions: Temp = +25C, VDD = +5V, 75 system, Full band unless otherwise noted Data Sheet Rev B, April 20, 2022 Subject to change without notice - 2 of 14 -