QPA3250 CATV Power Doubler Hybrid 1218MHz 23dB Product Description QPA3250 The QPA3250 is a Hybrid Power Doubler amplifier module. The part employs GaAs pHEMT die and GaN HEMT die and operates from 45MHz to 1218MHz. It provides extremely high output up to 76.8dBmV composite power or 67dBmV virtual level. DC current as well as supply voltage Package: SOT-115J of the device can be externally adjusted for optimum distortion performance versus power consumption over a wide range of output level. QPA3250 is optimized to work Product Features under DPD (Digital Pre-Distortion) in order to save power or to improve linearity. Extremely High Output Capability Excellent Linearity Superior Return Loss Performance Optimal Reliability Unconditionally Stable Under all Terminations 22.5dB Min. Gain at 1218MHz 550mA Max. Device works at V+ between 24V and 34V Functional Block Diagram DOCSIS 3.1 Compliant Optimized to work under DPD (Digital Pre-Distortion) Current setting V+ INPUT OUTPUT Applications 451218 MHz CATV Amplifier Systems Node+x and Deep Fiber Node Systems Ordering Information Part No. Description QPA3250 Box with 50 pcs Data Sheet Rev. B, October 29, 2018 Subject to change without notice 1 of 7 www.qorvo.com QPA3250 QPA3250 Absolute Maximum Ratings Parameter Value/Range RF Input Voltage (single tone) 75 dBmV DC Supply over-voltage (5 minutes) +38 V Vpin4 over-voltage (5 minutes) +38 V Storage Temperature 40 to 100C Operating Mounting Base Temperature 30 to 100C Operation of this device outside the parameter ranges given above may cause permanent damage. Electrical Specifications Test Conditions: V+=34V, Vpin4=2.5V, T =35C, Z =Z =75 Parameter MB S L Min Typ Max Unit IDC 530 550 mA Ipin4 (current setting pin) -1200 A Vpin4 Range (current setting pin) 02.5 V Operational Frequency Range 45 1218 MHz Gain f = 45 MHz 21.8 o Gain fo = 1218 MHz 22.5 23.0 24.0 dB 1 Gain Slope 45 to 1218 MHz 0.5 1.0 2.0 Gain Flatness 45 to 1218 MHz 0.8 fo= 45 to 320 MHz 20.0 f = 320 to 640 MHz 19.0 o Input Return Loss f = 640 to 870 MHz 17.0 dB o f = 870 to 1000 MHz 16.0 o fo= 1000 to 1218 MHz 15.0 fo= 45 to 320 MHz 20.0 fo= 320 to 640 MHz 19.0 Output Return Loss f = 640 to 870 MHz 18.0 dB o f = 870 to 1000 MHz 17.0 o f = 1000 to 1218 MHz 16.0 o Noise Figure fo= 50 to 1218 MHz 3.0 4.0 dB dBc CTB -80 -73 VO = 63 dBmV at 1218MHz, 22dB extrapolated tilt, dBc XMOD -75 -57 79 analog channels plus 111 digital channels dBc CSO -66 -64 2 3 (-6dB offset) dB CIN 58 55 Notes: 1. The slope is defined as the difference between the gain at the start frequency and the gain at the stop frequency. 2. 79 analog channels, NTSC frequency raster: 55.25MHz to 547.25MHz, +41 dBmV to +50.4 dBmV tilted output level, plus 111 digital channels, -6dB offset relative to the equivalent analog carrier. 3. Composite Second Order (CSO) - The CSO parameter (both sum and difference products) is defined by ANSI/SCTE 6. Composite Triple Beat (CTB) - The CTB parameter is defined by ANSI/SCTE 6. Cross Modulation (XMOD) - Cross modulation (XMOD) is measured at baseband (selective voltmeter method), referenced to 100% modulation of the carrier being tested. Carrier to Intermodulation Noise (CIN) - The CIN parameter is defined by ANSI/SCTE 17 (Test procedure for carrier to noise). Data Sheet Rev. B, October 29, 2018 Subject to change without notice 2 of 7 www.qorvo.com