Quad Channel 100Gb/s Modulator Driver

Part # TGA4947-MOD


Key Features

  • 100 Gb/s performance
  • Quad channel
  • Integrated broadband bias tees, blocking caps and necessary bypass capacitors
  • Adjustable output amplitude, 3 Vpp – 9 Vpp
  • Channel / Channel isolation > 30 dB to 40 GHz
  • Low additive RMS jitter, 700 fsec
  • High output drive, 8 Vpp with 0.4 Vpp input
  • Gain, 27 dB at 18 GHz


The TriQuint TGA4947-MOD is a 4-channel optical modulator driver amplifier designed to operate at frequencies that target the 100 Gb/s optical market using a 45.0 x 33.4 x 7.0 mm surface mount module.

The TGA4947-MOD consists of four channels of high performance wideband amplifiers and integrated broadband bias tees, DC blocking caps, and necessary bypass caps assembled in a metal surface mount housing. A single TGA4947-MOD placed between the MUX and OIF compliant Optical Modulator provides OEMs with a modulator driver solution.

The TGA4947-MOD provides Metro and Long Haul designers with system critical features such as: low power dissipation, high signal to noise (SNR) ratio, high voltage drive capability (3 Vpp amplitude adjustable up to 9 Vpp), low output jitter, and low input drive sensitivity (0.4 Vpp – 1 Vpp at Vout = 8 Vpp).

The TGA4947-MOD finish is lead-free. RoHS compliant. Evaluation boards and bias boards are available upon request.


Frequency (GHz) DC to 35
Vpp (V) 3 to 9
Gain (dB) 27
3 dB Bandwidth (GHz) 32
Voltage (V) 5 to 6
Current (mA) 1,100
Package Style  45 x 33.4 mm
RoHS  Yes
Lead Free  Yes
Halogen Free  Yes

Product Documents

Typical Applications

Additional Information

Status Production