поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Si4438 датащи(PDF) 11 Page - Silicon Laboratories

номер детали Si4438
подробное описание детали  Low active power consumption
Download  44 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  SILABS [Silicon Laboratories]
домашняя страница  http://www.silabs.com
Logo SILABS - Silicon Laboratories

Si4438 датащи(HTML) 11 Page - Silicon Laboratories

Back Button Si4438 Datasheet HTML 7Page - Silicon Laboratories Si4438 Datasheet HTML 8Page - Silicon Laboratories Si4438 Datasheet HTML 9Page - Silicon Laboratories Si4438 Datasheet HTML 10Page - Silicon Laboratories Si4438 Datasheet HTML 11Page - Silicon Laboratories Si4438 Datasheet HTML 12Page - Silicon Laboratories Si4438 Datasheet HTML 13Page - Silicon Laboratories Si4438 Datasheet HTML 14Page - Silicon Laboratories Si4438 Datasheet HTML 15Page - Silicon Laboratories Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 44 page
background image
Si4438-C
Rev 1.0
11
2. Functional Description
The Si4438 devices are high-performance, low-current, wireless ISM transceivers that cover the sub-GHz bands.
The wide operating voltage range of 1.8–3.8 V and low current consumption make the Si4438 an ideal solution for
battery powered applications. The Si4438 operates as a time division duplexing (TDD) transceiver where the
device alternately transmits and receives data packets. The device uses a single-conversion mixer to downconvert
the 2-level FSK/GFSK or OOK modulated receive signal to a low IF frequency. Following a programmable gain
amplifier (PGA) the signal is converted to the digital domain by a high performance
 ADC allowing filtering,
demodulation, slicing, and packet handling to be performed in the built-in DSP increasing the receiver’s
performance and flexibility versus analog based architectures. The demodulated signal is output to the system
MCU through a programmable GPIO or via the standard SPI bus by reading the 64-byte RX FIFO.
A single high precision local oscillator (LO) is used for both transmit and receive modes since the transmitter and
receiver do not operate at the same time. The LO is generated by an integrated VCO and
 Fractional-N PLL
synthesizer. The synthesizer is designed to support configurable data rates from 100 bps to 500 kbps. The transmit
FSK data is modulated directly into the
 data stream and can be shaped by a Gaussian low-pass filter to reduce
unwanted spectral content.
The Si4438 contains a power amplifier (PA) that supports output power up to +20 dBm with very high efficiency,
consuming only 75 mA. The integrated +20 dBm power amplifier can also be used to compensate for the reduced
performance of a lower cost, lower performance antenna or antenna with size constraints due to a small
form-factor. Competing solutions require large and expensive external PAs to achieve comparable performance.
The PA is single-ended to allow for easy antenna matching and low BOM cost. The PA incorporates automatic
ramp-up and ramp-down control to reduce unwanted spectral spreading. The Si4438 family supports TX/RX switch
control, and antenna diversity switch control to extend the link range and improve performance. Built-in antenna
diversity can be used to further extend range and enhance performance. Antenna diversity is completely integrated
into the Si4438 and can improve the system link budget by 8–10 dB, resulting in substantial range increases under
adverse environmental conditions. A highly configurable packet handler allows for autonomous encoding/decoding
of nearly any packet structure. Additional system features, such as an automatic wake-up timer, low battery
detector, 64 byte TX/RX FIFOs, and preamble detection, reduce overall current consumption and allows for the
use of lower-cost system MCUs. An integrated temperature sensor, power-on-reset (POR), and GPIOs further
reduce overall system cost and size. The Si4438 is designed to work with an MCU, crystal, and a few passive
components to create a very low-cost system.


Аналогичный номер детали - Si4438

производительномер деталидатащиподробное описание детали
logo
Silicon Laboratories
SI4438 SILABS-SI4438 Datasheet
1Mb / 44P
   Low active power consumption
SI4438-C2A SILABS-SI4438-C2A Datasheet
1Mb / 44P
   GH-PERFORMANCE, LOW-CURRENT TRANSCEIVER
Rev 1.0
SI4438-C2A-GM SILABS-SI4438-C2A-GM Datasheet
1Mb / 44P
   GH-PERFORMANCE, LOW-CURRENT TRANSCEIVER
Rev 1.0
logo
Vishay Siliconix
SI4438DY VISHAY-SI4438DY Datasheet
101Kb / 7P
   N-Channel 30-V (D-S) MOSFET
Rev. B, 09-Feb-09
More results

Аналогичное описание - Si4438

производительномер деталидатащиподробное описание детали
logo
Silicon Laboratories
SI4438 SILABS-SI4438 Datasheet
1Mb / 44P
   Low active power consumption
logo
ATMEL Corporation
ATAR080 ATMEL-ATAR080_14 Datasheet
883Kb / 68P
   Very Low Power Consumption in Active, Power-down and Sleep Mode
ATAR080-D ATMEL-ATAR080-D_14 Datasheet
913Kb / 68P
   Very Low Power Consumption in Active, Power-down and Sleep Mode
logo
SHANGHAI BELLING CO., L...
BL8070CA5TR BELLING-BL8070CA5TR Datasheet
447Kb / 6P
   Low Power Consumption
logo
Unisonic Technologies
LR9203XG-XX-AF5-R UTC-LR9203XG-XX-AF5-R Datasheet
236Kb / 9P
   LOW POWER CONSUMPTION
logo
SunLED Corporation
XDMYK14A2 SUNLED-XDMYK14A2 Datasheet
224Kb / 3P
   Low power consumption
XEMR21D SUNLED-XEMR21D Datasheet
220Kb / 3P
   Low power consumption
XEUR21D SUNLED-XEUR21D Datasheet
231Kb / 3P
   Low power consumption
XLUR34D SUNLED-XLUR34D Datasheet
235Kb / 3P
   Low power consumption
XLUY11D SUNLED-XLUY11D Datasheet
234Kb / 3P
   Low power consumption
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com