AMMC-6650 Datasheet, PDF (1/10 Pages) AVAGO TECHNOLOGIES LIMITED – DC–40 GHz Variable Attenuator

AMMC-6650
DC–40 GHz Variable Attenuator
Data Sheet
Chip Size: 1530 μm x 660 µm (61.2 x 26.4 mils)
Chip Size Tolerance: ±10 µm (±0.4 mils)
Chip Thickness: 100 ± 10 µm (4 ±0.4 mils)
Pad Dimensions: 80 x 120 µm (3.2 x 4.8 mils)
Description
The AMMC-6650 is a voltage controlled variable attenua-
tor designed to operate from DC-40 GHz. It is fabricated
using Avago Technologies enhancement mode pHEMT
MMIC process with backside ground vias, and gate lengths
of approximately 0.25um. The distributed topology of the
AMMC-6650 facilitates broadband operation by absorbing
parasitic effects of its series and shunt FETs. An on-chip DC
reference circuit may be used to maintain optimum VSWR
for any attenuation setting or to provide more linear
attenuation versus voltage response.
Simplified Schematic
DC
reference circuit
RFin
variable
RFout
attenuator
DCin V1 DCout V2
Features
• Wide Frequency Range DC-40 GHz
• Attenuation Range 20dB
• Single Positive Bias Supply
• Unconditionally Stable
Applications
• Microwave Radio Systems
• Satellite VSAT, DBS Up / Down Link
• LMDS & Pt – Pt mmW Long Haul
• Broadband Wireless Access (including 802.16 and
802.20 WiMax)
• WLL and MMDS loops
Attention: Observe precautions for
handling electrostatic sensitive devices.
ESD Machine Model = 80 V
ESD Human Body Model = 400 V
Refer to Avago Application Note A004R:
Electrostatic Discharge, Damage and Control.