參數(shù)資料
型號： NRF9E5-EVKIT915
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)： 32/104頁
文件大?。?/td> 1436K
代理商： NRF9E5-EVKIT915
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 32 of 104
June 2004
ADCCLK
SBCSN
EOC
ADCDATA
t
CONV
analog
sampled
Figure 8 Timing diagram single step conversion.
When ADCRUN is high the ADC is running continuously. Cycle time t
cycle
is the time
between each conversion. EOC indicates every time a new conversion value is stored in
ADC_DATA_REG.
cycles
ADCCLK
N
2
+
t
cycle
1
=
where N is number of resolution bits. Figure 9 shows 10-bit conversion where
ADCRUN is set high.
ADCCLK
EOC
ADCDATA
t
Conv
analog sample
t
Cycle
n
sample n-1
sample n
n+1
n+2
Figure 9 Timing diagram continuous mode conversion.
A 500 kHz clock (ADCCLK) clocks the ADC converter. Table 20 shows t
cycles
as
function of resolution.
Resolution
[Number of bits]
6
8
10
12
t
cycles
[
m
s]
8
10
12
14
Sampling rate
[kspls]
125
100
83.3
71.4
Table 20 ADC resolution and maximum sampling rate.
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參數(shù)描述
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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