參數(shù)資料
型號: OL2381AHN
廠商: NXP Semiconductors N.V.
元件分類: 微波射頻器件
英文描述: Highly Integrated Single Chip Sub 1-GHz RF Transceiver
封裝: OL2381AHN<SOT617-3 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-3.html<1<Always Pb-free,;
文件頁數(shù): 7/43頁
文件大小: 2978K
代理商: OL2381AHN
AN11017
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Application note
Rev. 2 — 10 May 2011
7 of 43
NXP Semiconductors
AN11017
Transceiver OL2381 using wireless M-BUS
2.2 Wireless M-Bus mode S1-m
Table 2.
Title
Application
Sending rate
Center Frequency
FSK Deviation
Data Encoding
Chip Rate
Preamble
[1]
All values provided are typical values unless otherwise stated.
S1-m is same as S1, but transmit interval is shorter. So mobile receivers can await this
time.
2.3 Wireless M-Bus mode S2
Table 3.
Title
Application
Sending rate
Center Frequency
FSK Deviation
Data Encoding
Chip Rate
Preamble
[1]
All values provided are typical values unless otherwise stated.
The meter periodically sends data and its receiver is only enabled for a short period after
each transmission. A bidirectional communication is established only if the stationary
transceiver asks for a request within this short period.
Fig 3.
Mode S1-m
Mode S1-m
Description
[1]
Stationary mode - transmit only meter, for stationary or mobile receivers
30 times per hour - the receiver must be continuously enabled
868.30 MHz
±50 kHz
Manchester
32.768 kchip/s (data rate = 16,384 bps)
short header (48 chips)
019aab755
Collector
Stationary or Mobile
Receiver
Meter
Mode S1-m
S
link
Fig 4.
Mode S2
Mode S2
Description
[1]
Stationary mode - bidirectional communication in S1 or S1-m mode.
same as S1/S1-m, depending on the mode used
868.30 MHz (both directions)
±50 kHz
Manchester
32.768 kchip/s (data rate = 16,384 bps)
short header or optional long header (48 chips)
019aab756
Collector
Stationary Transceiver
Meter
Mode S2
S
link
S
link
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