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SA625

Features: • Fast RSSI rise and fall times• Low power consumption: 5.8mA typical at 6V• Mixer input to >500MHz• Mixer conversion power gain of 13dB at 45MHz• Mixer noise figure of 4.6dB at 45MHz• XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz loc...

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SA625: Features: • Fast RSSI rise and fall times• Low power consumption: 5.8mA typical at 6V• Mixer input to >500MHz• Mixer conversion power gain of 13dB at 45MHz• Mixer no...

SA625 Data Sheet

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Part Number:
SA625
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Fast RSSI rise and fall times
• Low power consumption: 5.8mA typical at 6V
• Mixer input to >500MHz
• Mixer conversion power gain of 13dB at 45MHz
• Mixer noise figure of 4.6dB at 45MHz
• XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz local oscillator can be injected)
• 102dB 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
• Two audio outputs - muted and unmuted
• Low external component count; suitable for crystal/ceramic/LC filters
• Excellent sensitivity: 0.22V into 50 matching network for 12dB SINAD (Signal to Noise and Distortion ratio) for 1kHz tone with RF at 45MHz and IF at 455kHz
• SA625 meets cellular radio specifications
• ESD hardened


Application

• Digital cellular base stations
• High performance communications receivers
• Single conversion VHF/UHF receivers
• SCA receivers
• RF level meter
• Spectrum analyzer
• Instrumentation
• FSK and ASK data receivers
• Log amps
• Wideband low current amplification
• Digital cordless telephones


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER RATING UNITS
VCC Single supply voltage 9 V
TSTG Storage temperature range -65 to +150 °C
TA Operating ambient temperature range SA625 -40 to +85 °C
JA Thermal impedance          DK package 117 °C/W



Description

The SA625 is pin-to-pin compatible with the SA605, but has faster RSSI rise and fall times. The SA625 is a high performance monolithic low-power FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator (RSSI) with fast rise and fall time, and voltage regulator. The SA625 combines the functions of Signetics' SA602A and SA624. The SA625 is available in 20-lead SSOP (shrink small outline package).

For additional technical information about SA625 please refer to application notes AN1994, 1995 and 1996, which include example application diagrams, a complete overview of the product and artwork for reference.




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