SA636 - Low voltage high performance mixer FM IF system with high-speed RSSI

SA636是NXP恩智浦公司的一款RF-IF building blocks产品，SA636是Low voltage high performance mixer FM IF system with high-speed RSSI，本站介绍了SA636的封装应用图解、特点和优点、功能等，并给出了与SA636相关的NXP元器件型号供参考。

SA636 - Low voltage high performance mixer FM IF system with high-speed RSSI - RF-IF building blocks - RF - 恩智浦

产品描述

The SA636 is a low-voltage high performance monolithic FM IF system with high-speed RSSI incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic Received Signal Strength Indicator (RSSI), voltage regulator, wideband data output and fast RSSI op amps. The SA636 is available in 20-lead SSOP (Shrink Small Outline Package) and HVQFN20 (quad flat package).

The SA636 was designed for high bandwidth portable communication applications and will function down to 2.7 V. The RF section is similar to the famous SA605. The data output has a minimum bandwidth of 600 kHz. This is designed to demodulate wideband data. The RSSI output is amplified. The RSSI output has access to the feedback pin. This enables the designer to adjust the level of the outputs or add filtering.

SA636 incorporates a power-down mode which powers down the device when POWER_DOWN_CTRL pin is LOW. Power-down logic levels are CMOS and TTL compatible with high input impedance.

产品特性和优势

Wideband data output (600 kHz minimum)
Fast RSSI rise and fall times
Low power consumption: 6.5 mA typical at 3 V
Mixer input to >500 MHz
Mixer conversion power gain of 11 dB at 240 MHz
Mixer noise figure of 12 dB at 240 MHz
XTAL oscillator effective to 150 MHz (LC oscillator to 1 GHz local oscillator can be injected)
92 dB of IF amp/limiter gain
25 MHz limiter small signal bandwidth
Temperature compensated logarithmic Received Signal Strength Indicator (RSSI) with a dynamic range in excess of 90 dB
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: 0.54 μV into 50 Ω matching network for 12 dB SINAD (Signal-to-Noise And Distortion ratio) for 1 kHz tone with RF at 240 MHz and IF at 10.7 MHz
10.7 MHz filter matching (330 Ω)
Power-down mode (ICC = 200 μA)
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM perJESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 Class II, Level B

产品应用

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

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