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| 型号： | DP1283C915 |
| 厂商： | Semtech |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | MODULE DROP IN FOR XE1283 915MHZ |
| 标准包装： | 200 |
| 频率： | 915MHz |
| 数据传输率 - 最大： | 153.2kbps |
| 应用： | ISM |
| 功率 - 输出： | 11dBm |
| 灵敏度： | -111dBm |
| 电源电压： | 2.4 V ~ 3.6 V |
| 电流 - 接收： | 14mA |
| 电流 - 传输： | 40mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 模块 |
| 包装： | 散装 |
DP1283
3.1 TRANSCEIVER DESCRIPTION
The transceiver includes a receiver, a transmitter and a frequency synthesizer. The module operates in three frequency
bands (433MHz, 868MHz and 915MHz) and uses 2-level FSK modulation. In a typical application, the transceiver’s
registers are programmed by the embedded microcontroller through the 3-wire serial bus: SI, SO and SCK. The serial
bus is also used to read back the transceiver configuration.
On the receiver side, the bandwidth of the base-band filters, the frequency deviation of the expected incoming FSK
signal and the bit rate of the bit stream are programmable. On the transmitter side, the output power can be
programmed, choosing between 4 possible values. The frequency deviation and the bit rate for the transmit signal are
the same as those programmed in the receiver section. The frequency synthesizer frequencies, the frequency band and
the center frequency (with a step of 500Hz) are also programmable.
Fore more information please refer to the XE1283 Datasheet or XE1203F Datasheet:
3.2 MICROCONTROLLER DESCRIPTION
The microcontroller core is based on a CoolRISC? 816 CPU (Central Processing Unit). For more information about the
microcontroller please refer to the XE1283 Datasheet or XE88LC06/7A Datasheet.
Port A is an 8-bit parallel input port. It can also generate interrupts, events or a reset. It can be used to input external
clocks for the timer/counter/ PWM block.
Port B is an 8-bit parallel Input/Output port with analog capabilities. On the DP1283, only PB4 and PB5 are internally
pre-routed and used to control the antenna switch embedded in the module. For more information about the antenna
switch, please refer to the chapter 4.2: Antenna Switch Sequence.
Port D is not available on the DP1283; it is used to interconnect the RF transceiver to the 8-bit microcontroller, the Bit
Jockey? peripheral.
3.3 INTERNAL CONNECTIONS
The core of the DP1283 is the XE1283. The XE1283 consists of two Semtech circuits; the XE88LC06/7A and the
XE1203F which are connected together. Pre-routed internal connections and available API (Application Program
Interface) greatly simplifies the development while the Bit Jockey? leaves the microcontroller resources quasi
completely available to implement the application layer.
The connection is described below and is compatible with the Semtech API.
XE88LC06/7A
XE1203F
BITJOCKEY TM
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
DATA
DCLK
PATTERN
DATAIN
EN
SCK
SI
SO
The internal connections enable the user to send and receive data from the RF through the Bit Jockey? and also to
write and read the transceiver configuration registers.
? Semtech 2005
7
www.semtech.com
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