iT5061

iT5061 12.5-Gb/s 8-Vpp Modulator Driver (for use with bias choke) Description The iT5061 is a low-cost, high-out-voltage, plastic-packaged (QFP-N) broadband GaAs traveling-wave MMIC amplifier. In optical communication systems, it is well suited as a driver for EO/LiNo3 modulators by providing from 6 to 8 Vpp output for NRZ signals up to 12.5 Gb/s. The amplifier can also be used as an optical receiver amplifier gain stage for photodiodes or as a limiting amplifier after the transimpedance amplifier. It can operate from DC up to 11GHz with 14 dB linear gain, +21 dBm P1dB compression point, and +23 dBm Psat. The iT5061 employs GaAs pHEMT technology with silicon nitride as the dielectric of the on-chip MIM capacitors. The RF ports of the iT5061 must be AC coupled and the drain bias is provided by an external choke. Output voltage control is achieved by reducing the Vd power supply. An on-chip power detector allows user to provide external temperature compensation. The iT5061 requires a bias choke, external DC blocks, and control circuitry. ™ ™ ™ ™ ™ ™ ™ ™ ™ Bit rate: 9.95 Gb/s to 12.5 Gb/s Gain: 14 dB Output voltage: 8 Vpp Adjustable output voltage (3 Vpp to 8 Vpp) Return loss: Input: –10 dB Output: –10 dB Bias: 5 V at 210 mA , 8 Vpp 3.7V at 160 mA, 6Vpp Power dissipation: 1.1 W at Vout = 8 Vpp 600 mW at Vout = 6 Vpp On-chip power detector Low-cost JEDEC QFP-N (M02-200) package www.DataSheet4U.com Features Absolute Maximum Ratings Symbol Vd Vg Id Pin Tch Tstg Parameters/cond...