參數(shù)資料
型號： NRF9E5-EVKIT433
廠商： Electronic Theatre Controls, Inc.
英文描述： 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
中文描述： 433/868/915MHz RF收發(fā)器與8051兼容的嵌入式微控制器和4輸入，10位ADC
文件頁數(shù)： 17/104頁
文件大?。?/td> 1436K
代理商： NRF9E5-EVKIT433
PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989
Revision: 1.1
Page 17 of 104
June 2004
7
ANALOG INTERFACE
7.1
Crystal Specification
Tolerance includes initially accuracy and tolerance over temperature and aging.
Frequency
C
L
ESR
C
0max
Tolerance @
868/915 MHz
±
30ppm
±
30ppm
±
30ppm
±
30ppm
±
30ppm
Tolerance @
433 MHz
±
60ppm
±
60ppm
±
60ppm
±
60ppm
±
60ppm
4MHz
8MHz
12MHz
16MHz
20MHz
12pF
12pF
12pF
12pF
12pF
150
100
100
100
100
7.0pF
7.0pF
7.0pF
7.0pF
7.0pF
Table 13 Crystal specification of nRF9E5.
To achieve a crystal oscillator solution with low power consumption and fast start-up
time, it is recommended to specify the crystal with a low value of crystal load
capacitance. Specifying C
L
=12pF is acceptable, but it is possible to use up to 16pF.
Specifying a lower value of crystal parallel equivalent capacitance, Co=1.5pF is also
good, but this can increase the price of the crystal itself. Typically Co=1.5pF at a crystal
specified for Co_max=7.0pF.
7.2
Antenna Output
The “ANT1 & ANT2” output pins provide a balanced RF output to the antenna. The
pins must have a DC path to VDD_PA, either via a RF choke or via the center point in a
dipole antenna. The load impedance seen between the ANT1/ANT2 outputs should be in
the range 200-700
. The optimum differential load impedance at the antenna ports is
given as:
900MHz
430MHz
225
+j210
300
+j100
A low load impedance (for instance 50
) can be obtained by fitting a simple matching
network or a RF transformer (balun). Further information regarding balun structures and
matching networks may be found in the Application Examples chapter.
7.3
ADC Inputs
The Analog to digital converter has four analog input channels and one reference
voltage input. Analog input is selected with CHSEL in the ADC_CONFIG_REG.
7.4
Current Reference
To get accurate internal biasing, an external low tolerance resistor is used. A resistor of
22k
and 1% accuracy should be connected between the pin IREF and ground for
proper operation of nRF9E5.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
nRF9E5-EVKIT-433 功能描述:射頻模塊 NRF9E5 EVAL KIT 433MHZ RoHS:否 制造商:Linx Technologies 產(chǎn)品:Transceiver Modules 頻帶:902 MHz to 928 MHz 輸出功率:- 15.5 dBm to + 12.5 dBm 接口類型:UART 工作電源電壓:- 0.3 VDC to + 5.5 VDC 傳輸供電電流:38.1 mA 接收供電電流:22.7 mA 天線連接器類型:U.FL 最大工作溫度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
NRF9E5-EVKIT868 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
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NRF9E5-EVKIT915 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
NRF9E5IC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
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