Datasheet > SA636DK02

SA636DK02

更新时间： 2024-11-04 01:19:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
32页	2181K
描述
Low voltage high performance mixer FM IF system with high-speed RSSI

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SA636DK02 数据手册

SA636

Low voltage high performance mixer FM IF system

with high-speed RSSI

Rev. 8 — 8 October 2019

Product data sheet

1. General description

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.

SA636DK/02 is identical to SA636DK/01 except that V_o(RSSI)RSSI output voltage where

IF level = -118 dBm is screened 0.15 V to 0.45 V for applications that work best within this

range of operation.

2. Features and benefits

 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

12 3 4 5 6 7...32

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