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SA636 PDF даташит

Спецификация SA636 изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «Low voltage high performance mixer FM IF system».

Детали детали

Номер произв SA636
Описание Low voltage high performance mixer FM IF system
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

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SA636 Даташит, Описание, Даташиты
SA636
Low voltage high performance mixer FM IF system
with high-speed RSSI
Rev. 6 — 5 December 2012
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.
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
Excellent sensitivity: 0.54 V into 50 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 )
Power-down mode (ICC = 200 A)









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SA636 Даташит, Описание, Даташиты
NXP Semiconductors
SA636
Low voltage high performance mixer FM IF system
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per
JESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 Class II, Level B
3. 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
4. Ordering information
Table 1. Ordering information
Type number Topside
mark
Package
Name
Description
SA636BS
636B
HVQFN20 plastic thermal enhanced very thin quad flat package; no leads;
20 terminals; body 4 4 0.85 mm
SA636DK/01 SA636DK SSOP20 plastic shrink small outline package; 20 leads; body width 4.4 mm
Version
SOT917-1
SOT266-1
SA636
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 5 December 2012
© NXP B.V. 2012. All rights reserved.
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SA636 Даташит, Описание, Даташиты
NXP Semiconductors
5. Block diagram
SA636
Low voltage high performance mixer FM IF system
mixer
IF amp
OSC
FAST
RSSI
limiter
quad
VCC
EB
RSSI
POWER
DOWN
audio
Fig 1. Block diagram of SA636
002aaf661
SA636
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 5 December 2012
© NXP B.V. 2012. All rights reserved.
3 of 31










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