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參數(shù)資料
| 型號： | AMIS-53050 |
| 英文描述： | Frequency Agile Transceiver |
| 中文描述： | 捷變頻收發(fā)器 |
| 文件頁數(shù)： | 7/107頁 |
| 文件大?。?/td> | 2576K |
| 代理商： | AMIS-53050 |
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AMIS-53050
Frequency Agile Transceiver
Data Sheet
1.4.2.5.
Manchester Data Encoding
The AMIS-53050 can encode the data as NRZ or Manchester. Manchester encoding can improve the communication link as the
encoding removes long time periods with the same level of multiple bits, without a data edge transition. Manchester encoding will
require that the data rate be half of the NRZ data rate.
1.4.2.6.
Oscillators
The AMIS-53050 requires a single external crystal working with the internal VCO and PLL to generate frequencies from 300MHz to
960MHz. The AMIS-53050 has internal capacitors, which eliminate the need for external load capacitors when using a typical 24MHz
external crystal. The VCO requires an external inductor and capacitor (in conjunction with the internal capacitance) and user
programming of the device in order to produce the desired transmit or receive RF frequency. Due to parasitics associated with an
external capacitor, it is recommended that only a coil be used with the VCO unless the circuit cannot achieve the desired frequency
without a capacitor. A patented Quick Start circuit is used to force the crystal oscillator to the desired frequency in microseconds rather
than in milliseconds.
A low power internal 10kHz oscillator provides the timing for sniff, burst and housekeeping modes of operation. In this case, based on
integrated self-calibration circuitry, a frequency tolerance of +/- 2% can be achieved.
Crystal frequencies other than 24MHz may be used; however, this option is not recommended because:
The Quick Start feature will not function
The algorithm for determining the frequency register values will change
The algorithm for determining the data rate register values will change
The algorithm for determining the FSK modulation deviation register values will change
The RF frequency operational range of the device will change
1.4.2.7.
Interface Serial Bus
The AMIS-53050 has separate interfaces for data and control. The transfer of TX/RX data between the transceiver and an external host
controller is performed using a 3-wire serial interface or a 4-wire SPI compatible serial interface, respectively. Control information is
either written to or read from the appropriate register using either a 3-wire serial interface (only available with the AMIS-53050-002
version) or a 2-wire I
C compatible serial interface.
Once the data pertaining to the configuration of various modes of operation, such as transmit, receive, sniff, etc., is written to the
configuration register, placing the device into one of these specific modes is accomplished via a single write command.
TX/RX Data Interface
The transmit or receive data interface can be programmed to be either a proprietary 3-wire serial interface or a 4-wire SPI compatible
serial interface, respectively. The data interface can be set up for data transfer to a buffer or alternatively, for streaming data. In the
buffered data mode, the device can be configured as a master or a slave. However, it must be configured as a master in order to
process streaming data.
Control Interface
When the transceiver is first powered on, an external host controller can be used to configure the type of interface (3-wire or I
2
C) by
simply writing the desired protocol to the AMIS-53050. As long as power is not removed from the device, this configuration is
maintained. The AMIS-53050 is always a slave device for the control interface. The AMIS-53050-002 version does not bond the SSN
signal to an external pin of the AMIS-53050 pin. This version must use the I
C interface bus and the SSN line defaults to the correct
level to enable the I
C interface bus with the first write operation.
7
AMI Semiconductor
– Jan. 07, M-20639-002
www.amis.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMIS-53050-I/A | 制造商:AMI 制造商全稱:AMI 功能描述:Frequency Agile Transceiver |
| AMIS-53050-XTD | 功能描述:射頻收發(fā)器 AMIS-53050 WLESS TRNSCVR RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| AMIS-70020 | 制造商:ON Semiconductor 功能描述:POWER FAILURE ELAPSED TIME COUNTER, SOIC - Rail/Tube 制造商:ON Semiconductor 功能描述:POWER FAILURE ELAPSED TIME COUNTER, SOIC - Tape and Reel |
| AMIS-710200 | 制造商:AMI 制造商全稱:AMI 功能描述:200dpi CIS Module |
| AMIS-710201 | 制造商:AMI 制造商全稱:AMI 功能描述:200dpi CIS Module |
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