QPB8858 75 34dB CATV Amplifier 47 1218MHz Product Overview The QPB8858 is a GaAs pHEMT/MESFET 75-ohm push-pull RF amplifier IC featuring over 34dB of flat gain and low noise. This IC is designed to support DOCSIS 3.1 applications up to 1218MHz using a single 24V supply. The QPB8858 offers low noise and low distortion at high efficiency consuming only 7W in a 5x7 QFN package. Its compact size and low jc enable integration that is ideally suited for hybrid module applications. 40 pin 5x7 QFN Package Functional Block Diagram Key Features High Gain: 34dB 1218MHz Adjustable Bias RF +24V RC Filter V I LIN DD CTRL 47 - 1218 MHz BW I I DD DD 47dBmv/ch flat RF IN RF OUT 75 75 Low Noise: 4dB QPB8858 Excellent Composite Distortion pHEMT / MESFET device technologies I DD IDD EP Compact Size: 40P 5x7 QFN RC Filter +24V RF Power Consumption (24V, 290mA - 7W) Applications DOCSIS 3.1 Broadband CATV hybrid modules Head End CMTS Equipment 75-ohm amplifiers Ordering Information Part No. Description QPB8858SB Sample bag with 5 pieces QPB8858SR 7 Reel with 100 pieces QPB8858TR13 13 Reel with 2500 pieces QPB8858EVB 471218MHz PCBA Data Sheet Rev. I, July 29, 2021 - 1 of 13 - www.qorvo.com Subject to change without notice All rights reserved QPB8858 75 34dB CATV Amplifier 47 1218MHz Absolute Maximum Ratings Parameter Rating Supply Voltage (VDD) +30V (5min) Supply Current (IDD) 350mA Maximum Input Level (single tone) +70dBmV Operating Temperature Range -40 to +100C Storage Temperature Range 65 to +150C Maximum Junction Temperature +165C 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 24V (1) Parameter Condition Min Typ Max Unit Supply Voltage (V ) 24 V DD Supply Current (I ) V total current 290 mA DD DD Frequency Range 47 1218 MHz 2 Gain 1218MHz 34 dB Gain Flatness Max. deviation from line using least squares fit from 47 0.5 dB to 1218 MHz Gain Slope Gain(1218MHz) - Gain(50MHz) 1.0 dB Reverse Isolation -45 dB Input Return Loss 18 dB Output Return Loss 18 dB Noise Figure 4 dB CSO 80 NTSC + 111 QAM (-6dB offset), 47dBmV/ch out, 0dB -70 dBc tilt CTB -75 dBc CCN 65 dB OIP2 Low band: 225MHz, 275.5MHz, 15dBm/tone 85 dBm High band: 1100MHz, 1150.5MHz, 15dBm/tone 85 dBm OIP3 Low band: 225MHz, 275.5MHz, 15dBm/tone 52 dBm High band: 1100MHz, 1150.5MHz, 15dBm/tone 48 dBm Output P1dB 1218 MHz 28 dBm Thermal Resistance 7.5 C/W JB (Junction to backside of QFN) Notes: 1. Typical performance at these conditions: Temp = +25C, V = +24V, 75 system, Full band unless otherwise noted DD 2. Gain (or Tilt) can be modified between stages by approximately -4dB (S21 = 30dB). Data Sheet Rev. I, July 29, 2021 - 2 of 13 - www.qorvo.com Subject to change without notice All rights reserved