DOCSIS® 3.1 Upstream Amplifier IC

The DMA2318 is a general purpose, low-cost, high-linearity RF amplifier IC.  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 better than ±0.25 dB from 5 MHz to 210 MHz combined with an OIP3 at 100 MHz of >+44 dBm, make this part ideal for cable TV and infrastructure IF 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)
  • Compliant to DOCSIS® 3.1 PHY to >200 MHz upstream (US)
  • Full Duplex (FD) DOCSIS® 3.1 operation with >100 MHz signal carrying bandwidth with no SIC required
  • Typical Gain = 14.5 dB ± 0.25 dB (5 to 204 MHz)
  • OIP3 > +44 dBm (100-MHz)
  • >40 dB MER (DOCSIS® 3.1 OFDM)
  • Single Power Supply Input (+5 or +8 Vdc)
  • Operating Current = 180 mA Typical (Pdiss = 1.5 Wdc) @ +8 Vdc
  • Advanced GaAs Amplifier Technology
  • Industry Standard SOIC-8 with Exposed Paddle (EP) SMT Package
  • DOCSIS® 3.0/3.1 HFC/FTTx/RFoG Network House/Drop Amplifiers
  • DOCSIS® 3.0/3.1 HFC/FTTx/RFoG Network Downstream to 210 MHz
  • DOCSIS® 3.1 (D3.1) Full Duplex (FD) Applications to >100 MHz
  • DOCSIS® Set-Top-Gateway (DSG), Home/SOHO Wireless Gateway Router
  • Return Path Optical Receivers (RPORs)

Want to learn more about this product or need an RFIC designed to your specifications?

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