FTTx Optical Receiver Module (ORM)

The DTA0003 is a self-contained optical receiver module (ORM) that provides a constant output voltage and constant RF output when optical input power is received from -18 to 0 dBm. No feedback loop or voltage variable attenuator (VVA) is required saving the user landed product cost and size.  When installed and operating the module is fully autonomous with no external attenuation required. The part is available in a small outline, low profile SMT package.

Key Features
  • Provides Fully Autonomous Current-to-Voltage Transimpedance for FTTx Optical Receivers
  • Transimpedance Gain of 500 to >10k Ω from 0 to -18 dBm Optical Input Power
  • Constant Vout and RF Pout as Photo Diode Current Varies (Duet Patents Pending)
  • No Feedback Loop or Voltage Variable Attenuator (VVA) Required
  • EINC ≤ 2.0 pA/Square-Root-Hertz (@ 87 to 1000 MHz, -15 dBm Optical Input Power)
  • Constant Cascadable RF Output of +15 dBmV/channel, maximum 87 to 1000 MHz (Differential)
  • 75-Ohm Differential RF Output (Single-Ended Optional)
  • +5 Vdc Single Supply at 85 mA (MER > 37 dB) and +12 Vdc Single Supply at 75 mA OPTIONAL
  • User Adjustable Current versus Linearity (+5 Vdc @ 135 mA improves MER to > 40 dB)
  • Output Return Loss is 20 dB minimum, 87 to 1000 MHz (with 1:1 balun on RF output)
  • Unconditionally Stable
  • Compliant to State Administration of Radio and Television (SART) and CableLabs DOCSIS® 3.1 (D3.1) FTTH and HFC Optical Link Standards
  • SMT Package
  • SART and D3.1 Optical Link Standard Compliant FTTH and HFC System Receivers, ONUs, and Nodes
  • 75-Ohm Direct-to-Display Optical-to-RF Conversion
  • Long Reach FTTx Networks Operating with -18 to 0 dBm Optical Input Power
  • Shorter Reach FTTx Networks Requiring Lowest Bit Error Rate (using Current Adjust Option)
  • Return Path Optical Receivers (RPORs)

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

Call 1.908.854.DUET (3838), email info@duetmicro.com or fill out our contact form to start the discussion.