Title :
A novel GaAs Multi-Chip MMIC Video Amplifier for optical receiver in cable communication systems
Author :
Zhang, Diana ; Bisby, Ian ; Freeston, Andrew ; Noll, Alan
Author_Institution :
M/A-COM Technol. Solutions, Lowell, MA, USA
Abstract :
In this paper a novel GaAs Multi-Chip MMIC Video Amplifier is presented for gigabit passive optical network (GPON) fiber-to-the-home and fiber-to-the-building (FTTx) downstream cable communication systems. The video amplifier is composed of three dice: the first one is an input transimpedance amplifier (TIA), the second is an analog variable voltage controlled attenuator (VVA), and the last is comprised of a first stage main amplifier, a non-reflective dual resonant tilting circuit and an output stage main amplifier. The three-die video amplifier is implemented in M/A-COM Technology Solutions´s Fab1 processes: 0.5 μm low access resistance pHEMT process, and 1.0μm high linearity MESFET switch process. The video amplifier combines complex multifunction MMICs and exhibits unmatched performance: 42dB receiver gain, 34dB attenuation range, 3.5pA/rtHz input-referred noise current density (Ein), 18dB output return loss, 65dBc composite triple beat (CTB) and 70dBc composite second order (CSO) (CATV standard 79 analog channels over -8 to +2dBm optical input power), achieving 26dBmV/CH output power level with typical 335mA DC current consumption at +5V power supply. The amplifier is packaged in a 4×6mm 32-lead PQFN package.
Keywords :
III-V semiconductors; MMIC amplifiers; Schottky gate field effect transistors; cable television; electronics packaging; gallium arsenide; high electron mobility transistors; integrated optoelectronics; optical receivers; passive optical networks; video amplifiers; CATV standard analog channels; GaAs; M/A-COM Technology Solutions Fab1 processes; PQFN package; analog variable voltage controlled attenuator; composite second order; composite triple beat; current 335 mA; downstream cable communication systems; fiber-to-the-building; fiber-to-the-home; gain 42 dB; gigabit passive optical network; high linearity MESFET switch process; input transimpedance amplifier; input-referred noise current density; loss 18 dB; low access resistance pHEMT process; multichip MMIC video amplifier; nonreflective dual resonant tilting circuit; optical receiver; receiver gain; size 0.5 mum; size 1.0 mum; three-die video amplifier; voltage 5 V; Gain; Impedance; MESFETs; Optical attenuators; Optical fiber amplifiers; Optical receivers; Passive optical networks; Automatic Gain Control Amplifier (AGC Amplifier); Composite Second Order (CSO); Composite Triple Beat (CTB); Fiber-to-the-Building (FTTx); Fiber-to-the-Home; Gigabit Passive Optical Network (GPON); Input-Referred Noise Current Density (Ein); Monolithic Microwave Integrated Circuit (MMIC); Transimpedance Amplifier (TIA); Variable Gain Amplifier (VGA); Variable Voltage Controlled Attenuator (VVA);
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
