SA636DK
Low voltage high performance mixer FM IF system with high-speed RSSI
APPLICATIONS
DECT (Digital European Cordless Telephone)
Digital cordless telephones
Digital cellular telephones
Portable high performance communications receivers
Single conversion VHF/UHF receivers
FSK and ASK data receivers
Wireless LANs
FEATURES
Wideband data output (600kHz min.)
Fast RSSI rise and fall times
Low power consumption: 6.5mA typ at 3V
Mixer input to >500MHz
Mixer conversion power gain of 11dB at 240MHz
Mixer noise figure of 12dB at 240MHz
XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz local
oscillator can be injected)
92dB of IF Amp/Limiter gain
25MHz limiter small signal bandwidth
Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 90dB
RSSI output internal op amp
Internal op amps with rail-to-rail outputs
Low external component count; suitable for crystal/ceramic/LC
filters
Excellent sensitivity: 0.54µV into 50? matching network for 12dB
SINAD (Signal to Noise and Distortion ratio) for 1kHz tone with RF
at 240MHz and IF at 10.7MHz
ESD hardened
10.7MHz filter matching (330?)
Power down mode (ICC = 200µA)
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