4 Channel 28 Gb/s QSFP28 Modulator Driver

Part # TGA4851-SL


Key Features

  • QSFP28, CFP4, CFP2 100G quad driver
  • Adjustable output amplitude, 1 to 3 Vpp
  • Low additive RMS jitter, 600 fsec
  • Gain, 11 dB at 15 GHz
  • Channel-to-channel isolation, 30 dB
  • Low DC power dissipation, 150 mW @ 1.5 Vpp at Vd = 3 V, per channel
  • Rise and fall times, 12.5 psec
  • Package size: 3.75 x 7.52 x 0.70 mm


The Qorvo TGA4851-SL is a 4 channel optical modulator driver amplifier designed for the QSFP28 100 Gb/s optical markets. The TGA4851-SL is a compact SMT package with 11 dB of gain and 1.5 Vpp output power and 3 dB BW of 30 GHz.

The TGA4851-SL includes four wideband MMIC amplifiers and bypass capacitors inside the package and provides Client side designers with system critical features such as: low power dissipation, high signal to noise ratio (SNR), fast rise and fall times, and low output jitter.

The TGA4851-SL is RoHS compliant.

Evaluation boards are available upon request.


Frequency (GHz) DC to 30
Vpp (V) 1.5 to 3
Gain (dB) 11
3 dB Bandwidth (GHz) 30
Voltage (V) 2.5 to 3.3
Current (mA) 50
Package Style  3.7 x 7.5 x 0.7 mm SMT
RoHS  Yes
Lead Free  Yes
Halogen Free  Yes

Product Documents

Typical Applications

Additional Information

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