TriQuint Semiconductor TGA4803
The TGA4803 is an excellent choice for 43Gb/s NRZ applications. The TGA4803 is capable of driving a single Electro-Absorptive optical Modulator (EAM) with electrical Non-Return to Zero (NRZ) data. In addition, the TGA4803 may also be used as a transmit predriver or a receive gain block.FEATURES
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● 0.15um pHEMT Technology DC to >50GHz Linear BW 8dB Gain, 14dBm @ P1dB Group Delay Ripple +/- 6ps to 50 GHz <10ps Edge Rates (20/80) 3.5Vpp 43Gb/s NRZ PRBS Bias: Vd=6.5V, 100mA Chip Size: 1.90 x 1.09 x 0.10 mm Test Equipment Ultra Wideband 43Gb/s OC768 EAM Driver 43Gb/s OC768 Gain Stage: 15 10 Primary
APPLICATIONS
DESCRIPTION
The TriQuint TGA4803 is a medium power wideband AGC amplifier that typically provides 8dB small signal gain with 3dB AGC range. Typical input and output return loss is >10dB. Typical Noise Figure is 5dB at 3GHz. Typical saturated output power is 17dBm. Small signal 3dB BW is >50GHz. RF ports are DC coupled enabling the user to customize system corner frequencies. Drain bias may be applied through the output port for best efficiency or through the on-chip drain termination. Three stages in cascade demonstrated 3.8Vpp output voltage swing with 350mV at the input when stimulated with 43Gb/s 2^31-1prbs NRZ data. The TGA4803 requires off-chip decoupling and blocking components.