DOCSIS®3.1 Full Duplex Amplifier IC

The DMA2319E is a high-linearity RF amplifier IC designed for exceptionally wide bandwidth (BW), flat gain over BW, and artifact-fee amplification of multi-carrier modulated signals. Employing an amplifier die manufactured on an advanced GaAs process, this linear CATV amplifier is a single-ended, ultra-linear amplifier ideal for high data rate broadband systems. Designed for use as an easily cascadable 75 Ω gain block, its gain flatness of ±1dB from 108 MHz to 684 MHz combined with an OIP2 at 100 MHz of >+70 dBm, make this part ideal for D3.1 full-duplex FDX applications. No baluns are required and the part is available in a small outline, low profile SMT package.

Key Features
  • Provides push-pull amplifier performance as a 75 Ohm Single-Ended I/O amplifier IC (no baluns required)
  • DOCSIS® 3.1 Full Duplex (FDX) operation from 108 to 684 MHz
  • Extended Spectrum DOCSIS® Downstream PHY Compliance from 750 to 1794 MHz
  • Typical Gain = 14.0 dB ±1.0 dB (108 to 684 MHz) and 14.0 dB ± 1.5 dB (750 to 1794 MHz)
  • OIP3 >+40 dBm (108 MHz); OIP2 >+70 dBm (108 MHz)
  • ≥45 dB MER (DOCSIS® 3.1 OFDM), 108 to 684-MHz, FLAT, uncorrected
  • RF Output to +30 dBmV (108 to 684 MHz); Total Composite Power ≈ +46 dBmV
  • Single Power Supply Input (+8.5 to +12 Vdc)
  • Operating Current = 180 mA Typical (Pdiss ≈ 1.5 Wdc)
  • Advanced GaAs Amplifier Technology
  • SOIC-8 with Exposed Paddle (EP) SMT Package
  • DOCSIS® 3.1 Full Duplex (FDX) Consumer Premises Equipment (CPE) from 108 to 684 MHz
  • DOCSIS® 3.1FDX Capable Gateways, Routers, Servers, Computing Devices, Displays
  • DOCSIS® 4.0 HFC/FTTx/RFoG Network Downstream 750 to 1794 MHz
  • DOCSIS® Set-Top-Gateway (DSG), Home/SOHO Wireless Gateway Router
  • Extended Spectrum DOCSIS® Downstream from 750 to 1794 MHz

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