- 您现在的位置：买卖IC网 > Datasheet目录409 > DR-TRC105-450-EV (RFM)BOARD EVALUATION 450MHZ RFM RFIC Datasheet资料下载
参数资料
| 型号： | DR-TRC105-450-EV |
| 厂商： | RFM |
| 文件页数： | 56/67页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION 450MHZ RFM RFIC |
| 标准包装： | 1 |
| 类型： | 收发器 |
| 频率： | 447MHz ~ 451MHz |
| 适用于相关产品： | TRC105 |
| 已供物品： | 2 个板，天线，电池 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页当前第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页
Received bits are valid (clocked out) on Pin 20 on low-to-high clock transitions on Pin 22. The clock signal is con-
trolled by RXCFG12 bit 6. Setting this bit to 0 enables bit clocking and setting this bit to 1 disables bit clocking.
Clocking must be used for FSK transmissions. It is optional for OOK transmissions.
While clocking is optional for FSK and OOK reception, enabling clocking provides additional bit stream filtering
and regeneration, even if the clock signal is not used by the microcontroller. To effectively use the data and clock
recovery feature, data must be transmitted with a bit rate accuracy of better than ±2%, and a 1-0-1- 0… training
preamble of at least 24 bits must be sent at the beginning of a transmission. When clocking is enabled, continu-
ous mode will optionally support the detection of a start-of-packet (start) pattern when receiving. The start pattern
must be generated by the host microcontroller when transmitting. Start pattern detection is enabled by setting
RXCFG12 bit 5 to 1. The length of the start pattern is set by RXCFG12 bits 4..3 as follows:
RXCFG12 bits 4..3
00
01
10
11
Pattern Length
8 bits
16 bits
24 bits
32 bits
Table 75
The number of allowed bit errors in the start pattern is configured by RXCFG12 bits 2..1 as follows:
RXCFG12 bits 2..1
00
01
10
11
Error Tolerance
none
1 bit
2 bits
3 bits
Table 76
For most applications, a start pattern length of 24 to 32 bits is recommended with the error tolerance set to none.
The start pattern is stored in registers SYNCFG16 through SYNCFG19 . Received bits flow through a shift register
for pattern comparison with the most significant bit of SYNCFG16 compared to the earliest received bit and the
least significant bit of the last register (selected by the pattern length) compared to the last received bit. Pattern
detection is usually output on IRQ0, as discussed below. Refer to Figure 9 for pattern detection output timing. A
well designed pattern should contain approximately the same number of 1 and 0 bits to achieve DC-balance, it
should include frequent bit transitions, and it should be a pattern that is unlikely to occur in the encoded data fol-
lowing it.
As shown in Figure 19, two interrupt (control) outputs, IRQ0 and IRQ1, are provided by the TRC105 to coordinate
data flow to and from the host microcontroller. In Continuous data mode, one of two signals can be mapped to
IRQ0. This mapping is configured in register IRQCFG0D . Bits 7..6 select the signal for IRQ0 in the receive mode.
The mapping options for Continuous data mode are summarized in Table 77 , where X denotes a don’t care bit
value. Note that IRQ1 always outputs DCLK in Continuous data mode when clocking is enabled.
www.RFM.com E-mail: info@rfm.com
? 2009-2013 by RF Monolithics, Inc.
Technical support +1.800.704.6079
Page 56 of 67
TRC105 - 05/29/13
相关PDF资料 |
PDF描述 |
|---|---|
| DR-TXC100-433 | BOARD EVALUATION 433MHZ TXC100 |
| DR-WLS1273L-EV | KIT EVAL FOR WLS1273L |
| DR7000-DK | 3G DEVELOPMENT KIT 433.92MHZ |
| DR7001-DK | 3G DEVELOPMENT KIT 315 MHZ |
| DR7003-DK | 3G DEVELOPMENT KIT 303.825 MHZ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DRTU06D06 | 功能描述:时间延迟和计时继电器 180-240VAC/DC 1-60VDC 6A RoHS:否 制造商:Crydom 显示器类型:Hand Dial 电源电压:280 VAC 定时范围: 触点形式: 触点额定值:6 A 端接类型:DIN Rail |
| DRTU24A06 | 功能描述:时间延迟和计时继电器 180-240VAC/DC 24-280VAC 6A RoHS:否 制造商:Crydom 显示器类型:Hand Dial 电源电压:280 VAC 定时范围: 触点形式: 触点额定值:6 A 端接类型:DIN Rail |
| DRTU24A06R | 功能描述:时间延迟和计时继电器 90-140VAC/DC 24-280VAC 6A RoHS:否 制造商:Crydom 显示器类型:Hand Dial 电源电压:280 VAC 定时范围: 触点形式: 触点额定值:6 A 端接类型:DIN Rail |
| DRTU24B06 | 功能描述:时间延迟和计时继电器 90-140VAC/DC 24-280VAC 6A RoHS:否 制造商:Crydom 显示器类型:Hand Dial 电源电压:280 VAC 定时范围: 触点形式: 触点额定值:6 A 端接类型:DIN Rail |
| DRTU24B06R | 功能描述:时间延迟和计时继电器 2-24VAC/DC 24-280VAC 6A RoHS:否 制造商:Crydom 显示器类型:Hand Dial 电源电压:280 VAC 定时范围: 触点形式: 触点额定值:6 A 端接类型:DIN Rail |
发布紧急采购，3分钟左右您将得到回复。