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参数资料
| 型号： | RI-RFM-006A |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | TIRIS RF-Module IC for Automotive |
| 中文描述： | 提里斯射频集成电路模块汽车 |
| 文件页数： | 9/20页 |
| 文件大小： | 148K |
| 代理商： | RI-RFM-006A |
Rev. 3.5
RI-RFM-006A
TIRIS
RF-Module IC for Automotive
Page 8 of 19
terminal in bit strings (“1” or “0”). To delimit these continuous bit strings, clock signals are output from
the “RXCK” terminal in synchronization with each bit data.
In normal operating conditions (when data communication can be properly performed between the RI-
RFM-006A and a
TIRIS
transponder), each bit data group sent from the remote transponder is composed
of sixteen consecutive signal waves belonging to the same frequency band (consisting of two wave
groups, 134.2-kHz high and 123.2-kHz low in terms of normal values). Therefore, clock signals at a
frequency resulting from a simple division of the “A3OP” terminal signal frequency by 16, are output
from the “RXCK” terminal. Then, each “RXCK” clock signal is controlled for output so that its first
transition falls after four consecutive “A3OP” signal waves from the “RXDT-“ signal change point. This
enables an external controller to obtain the relevant bit data without fail provided that each “RXDT-“
signal is fetched well timed with the first transition of each “RXCK” signal. (See the diagram below.)
Sometimes at starting or during data receiving, some bit data group (composed of sixteen consecutive
signal waves belonging to the same frequency band) may be affected by interference noise, this causing
the number of its waves to vary and the consequent synchronous discrepancy between “RXDT-“ and
“RXCK” signals. To correct this discrepancy, the sixteenth dividing counter of frequency incorporated in
this RF-module IC for “RXCK” clock signal generation are always reset at the moment at which any
internal demodulated bit data changes from “0” to “1” so that “RXCK” terminal signals are forcibly
output at L-level with the timing shown below. This correction is made automatically regardless of
whether or not receiving signals are properly input. (The frequency dividing counter is not reset at bit
data change from “1” to “0”.)
Note:
For details about timing among these signals, refer to the section describing “Input-
Output Specifications”.
A3OP terminal signal
RXCK terminal output
DATA VALID
RXDT- terminal output
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
One bit data group (16 waves)
4 waves
4 waves
8 waves
A3OP terminal signal
RXCK terminal output
RXDT- terminal output
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
DATA="0"
16
DATA="1"
15
13
(each duration is equivalent to four A3OP terminal
Timing is controlled so that these durations are uniform
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RI-RFM-006A-00 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TIRIS RF-Module IC for Automotive |
| RI-RFM-006A-30 | 制造商:Rochester Electronics LLC 功能描述: |
| RI-RFM-007 | 制造商:TI 制造商全称:Texas Instruments 功能描述:HIGH PERFORMANCE LF RADIO FREQUENCY MODULE |
| RI-RFM-007B-00 | 功能描述:射频模块 LF Radio Frequency Module RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm |
| RI-RFM-007B-30 | 功能描述:射频模块 RFM Module High Perf RoHS:否 制造商:Linx Technologies 产品:Transceiver Modules 频带:902 MHz to 928 MHz 输出功率:- 15.5 dBm to + 12.5 dBm 接口类型:UART 工作电源电压:- 0.3 VDC to + 5.5 VDC 传输供电电流:38.1 mA 接收供电电流:22.7 mA 天线连接器类型:U.FL 最大工作温度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm |
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