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Typical Applications
Figures 11 and 12 show two circuits using the CDI.
Circuit A shows the transceiver set up for transparent
data operation. The TRPT/PKT line is pulled high,
GND
GND
1
2
3
4
5
GND
NC
GND
NC
NC
GND
ANTENNA
GND
NC
NC
44
43
42
41
40
GND
GND
GND
GND
1
2
3
4
5
GND
NC
GND
NC
NC
placing the module into Transparent Mode.
The microcontroller monitors the READY line for flow
control and to monitor the status of the module.
It controls POWER_DOWN and STANDBY for power
conservation, though these could be hardwired if power
conservation is not necessary for the application.
GND
VCC
6
7
8
9
10
11
12
13
GND
NC
NC
TRPT/PKT
CHN_SEL 0
GND
CHN_SEL 1
CHN_SEL 2
GND
DATA_IN
DATA_OUT
NC
NC
GND
NC
NC
39
38
37
36
35
34
33
32
GND
GND
GPIO
GPIO
RX
TX
GPIO
GPIO
GPIO
μ
GND
GND
6
7
8
9
10
11
12
13
GND
NC
NC
TRPT/P
CHN_S
GND
CHN_S
CHN_S
CMD_DATA_IN and CMD_DATA_OUT are connected to
14
LVL_ADJ
CMD_DATA _BAUD
31
GND
14
LVL_AD
the TX and RX lines of the UART in the microcontroller.
CMD_DATA_TYPE is hardwired low for command data.
CMD_DATA_BAUD is hardwired to the low data rate
GND
15
16
17
18
READY
NC
GND
T/R_SEL
CMD_DATA _TYPE
CMD_DATA _OUT
GND
CMD_DATA _IN
30
29
28
27
GND
GND
GND
15
16
17
18
READY
NC
GND
T/R_SE
(9,600bps). DATA_IN and DATA_OUT are connected to
GPIOs on a microcontroller that generates and decodes
the over-the-air data.
GND
19
20
21
22
BAUD0
BAUD1
RSSI
GND
STANDBY
VCC
POWER_DOWN
GND
26
25
24
23
VCC
GND
GND
GND
GND
19
20
21
22
BAUD0
BAUD1
RSSI
GND
The channel, power level, transmit / receive state
and baud band are controlled by the microcontroller
through the CDI rather than by the hardware lines.
Figure 11: NT Series Transceiver Typical Application Circuits
The microcontroller also reads the 44 RSSI level through
GND
GND
GND
1
GND
1
GND
GND
44
GND
the CDI.
GND
2
3
NC
GND
ANTENNA
GND
43
42
GND
GND
2
3
NC
GND
ANTENNA
GND
43
42
GND
NC
NC
Circuit B shows NC the transceiver NC set 40 up for packet
4 41
5
4
5
NC
NC
NC
NC
41
40
operation. The TRPT/PKT line GND pulled low, placing the
GND
module into Packet Mode. CMD_DATA_IN and GPIO
NC
DATA_IN
GPIO
NC
DATA_OUT
μ
of the UART in CHN_SEL microcontroller. The microcontroller
TX
NC
controls the 12 CMD_DATA_TYPE GND line 33 to GND toggle between
GND
GPIO
Command Data CHN_SEL changing the module’s settings and
for 2
NC
GPIO
Packet Data for transmission _BAUD reception. It also
GND
6
7 38
8 37
9 36VCC TRPT/PKT NC
CMD_DATA_OUT are connected to the TX and RX lines
10 35
11 34
CHN_SEL 1 NC GPIO
13 32
14 31
GND
GND
6
7
8
9
10
11
12
13
14
GND
NC
NC
TRPT/PKT
CHN_SEL 0
GND
CHN_SEL 1
CHN_SEL 2
LVL_ADJ
GND
DATA_IN
DATA_OUT
NC
NC
GND
NC
NC
CMD_DATA _BAUD
39
38
37
36
35
34
33
32
31
GND
GND
VCC
controls POWER_DOWN and STANDBY for power
CMD_DATA
READY
conservation. 17 The microcontroller 28 monitors the READY
CMD_DATA _OUT
NC
line for flow control and to monitor 27 the status of the
CMD_DATA _IN
T/R_SEL
module. CMD_DATA_BAUD STANDBY hardwired to the high
BAUD0
GND GND GND GND
15
16 29
18
19 26
GND
GND
15
16
17
18
19
READY
NC
GND
T/R_SEL
BAUD0
CMD_DATA _TYPE
CMD_DATA _OUT
GND
CMD_DATA _IN
STANDBY
30
29
28
27
26
GND
GPIO
RX
TX
GPIO
GPIO
μ
data rate (57,600bps).
BAUD1
RSSI
20
21
VCC
POWER_DOWN
25
24
VCC
GND
20
21
BAUD1
RSSI
VCC
POWER_DOWN
25
24
VCC
GPIO
GND
GND
GND
GND
22 23
The channel, power level and baud band are controlled
GND
22
GND
GND
23
GND
by the microcontroller through the CDI rather than by
the hardware lines. The microcontroller also reads the
RSSI level through the CDI.
Please see the Packet Generator Reference Guide for
more information on Packet Mode.
– 7 –
Figure12:NTSeriesTransceiverTypicalApplicationCircuits(2)
NT Series Command Data Interface
Reference Guide RG-00101
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相关代理商/技术参数
TRM-900-TT
制造商:Linx Technologies Inc 功能描述:M2M ACCESSORY
TRM-900-TT-250
制造商:Linx Technologies Inc 功能描述:M2M ACCESSORY
TRM-915-DP1203
功能描述:射频模块 915 MHz Wireless Module DP1203
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
TRM-915-DP1205
功能描述:射频模块 915 MHz Wireless Module DP1205
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
TRM-915-DTS
功能描述:射频模块 915 MHz Wireless Module DTS North Am
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
TRM-915-DTS-BRZ
功能描述:射频模块 Module DTS Brazil
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
TRM-915-DTS-FCC
功能描述:射频模块 915 MHz Wireless Mod DTS FCC ST conn
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
TRM-915-DTS-FCC-RA
功能描述:射频模块 915 MHz Wireless Mod DTS FCC RA conn
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