收藏本站
AS3932
Datasheet - D e t a i l e d D e s c r i p t i o n
ON/OFF mode (Low Power mode 2). All active channels are on at the same time but not for the whole time (time slot T is defined as 1ms).
An on-off duty-ratio is defined. This duty ratio is programmable see R4<7:6> .
Figure 12. ON/OFF Mode
Channel 1
Channel 2
time
Channel 3
time
Presence
of carrier
time
t0
t0+T
2 *t 0
2 *t 0 + T
3 *t 0
time
For each of these sub modes it is possible to enable a further feature called Artificial Wake-up. The Artificial Wake-up is a counter based on the
used RTC. Three bits define a time window see R8<2:0> . If no activity is seen within this time window the chip will produce an interrupt on the
WAKE pin that lasts 128 μs. With this interrupt the microcontroller (μC) can get feedback on the surrounding environment (e.g. read the false
wake-up register R13<7:0> ) and/or take actions in order to change the setup.
8.1.3
Preamble Detection / Pattern Correlation
The preamble detection and pattern correlation are only considered for the wake-up when the data correlator function is enabled (see R1<1> ).
The correlator searches first for preamble frequency (constant frequency of Manchester clock defined according to bit-rate transmission, see
Table 19 ) and then for data pattern.
If the pattern is matched the wake-up interrupt is displayed on the WAKE output and the chip goes in Data receiving mode. If the pattern fails the
internal wake-up (on all active channels) is terminated and no IRQ is produced.
8.1.4
Data Receiving
After a successful wake-up the chip enters the data receiving mode. In this mode the chip can be retained a normal OOK receiver. The received
data are streamed out on the pin DAT. It is possible to put the chip back to listening mode either with a direct command (CLEAR_WAKE (see
Table 12) ) or by using the timeout feature. This feature automatically sets the chip back to listening mode after a certain time R7<7:5> .
www.ams.com/LF-Receiver/AS3932
Revision 1.7
13 - 34
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
AS500106 TLAPS MAGNET CARRIER
AS5263-HQFT-500 IC ENCODER ROTARY 12BIT 32-QFN
AT 150 B420L SENSOR CURRENT 150A 30V MOD
AT 150 B5 SENSOR CURRENT 150A MOD
AT 20 B10 SENSOR CURRENT 20A MOD
AT-7666A SENSOR AMORPHOUS 146X167.5X0.3
AT094 PCB ADAPTER FOR DSA01
AT86RF212-ZUR TXRX AVR LOW PWR/VOLTAGE 32PQFN
相关代理商/技术参数
AS3932-DB 制造商:ams 功能描述:AS3932 Demo Board Rx & Tx
AS3932-DK 制造商:ams 功能描述:AS3932 Development System
AS3933 DB 制造商:AMS 功能描述:BOARD DEMO FOR AS3933
AS3933 DEV SYSTEM 功能描述:BOARD DEMO FOR AS3933 制造商:ams 系列:- 零件状态:有效 类型:接收器，ASK 频率:125kHz 配套使用产品/相关产品:AS3933 所含物品:2 板，电源，软件 标准包装:1
AS3933BQFT 制造商:ams 功能描述:T&R / QFN 16 (4x4)
AS3933-BQFT 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel
AS3933-BQFT-CUT TAPE 制造商:AMS 功能描述:AS3933 Series 3.6 V 150 KHz 3D Low Frequency Wakeup Receiver - QFN-16
AS3933BTST 制造商:ams 功能描述:T&R / TSSOP 16