參數(shù)資料
型號(hào)： EM2420
廠商： Electronic Theatre Controls, Inc.
英文描述： 2.4 GHz IEEE 802.15.4 / ZigBee RF Transceiver
中文描述： 2.4 GHz IEEE 802.15.4標(biāo)準(zhǔn)/ ZigBee的射頻收發(fā)器
文件頁數(shù)： 30/89頁
文件大?。?/td> 1758K
代理商： EM2420
EM2420
Ember Part Number: 120-0049-000
C
EM2420 Datasheet
Page 30 of 89
illustrated in Figure 10. The only exception
is that FIFO and RAM access must be
terminated by setting
CSn
high.
CSn
SI
ADDR
ADDR
DATA
8MSB
DATA
8LSB
DATA
ADDR+1
SO
ADDR
TXFIFO
DATA
ADDR
DATA
ADDR+2
Status
Status
-
-
Status
Status
Status
Status
Command
Strobe
Register
Read
TXFIFO
Write
Figure 10. Multiple SPI Access Example
Microcontroller Interface and Pin Description
When used in a typical system, the
EM2420
will interface to a microcontroller. This
microcontroller must be able to:
Program the
EM2420
into different
modes, read and write buffered data,
and read back status information via
the
4-wire
SPI-bus
interface (
SI
,
SO
,
SCLK
and
CSn
).
configuration
Interface to the receive and transmit
FIFOs using the
FIFO
and
FIFOP
status pins.
Interface to the
CCA
pin for clear
channel assessment.
Interface to the
SFD
pin for timing
information (particularly for beaconing
networks).
Configuration interface
An
example is shown in Figure 11. The
microcontroller uses 4 I/O pins for the SPI
configuration interface (
SI
,
SO
,
SCLK
and
EM2420
-to-microcontroller
interface
CSn
).
SO
should be connected to an input
at the microcontroller.
SI
,
SCLK
and
CSn
must
be
microcontroller
Preferably the microcontroller should have
a hardware SPI interface.
outputs.
The microcontroller pins connected to
SI
,
SO
and
SCLK
can be shared with other
SPI-interface devices.
SO
is a high
impedance output as long as
CSn
is not
activated (active low). An internal pull-up
on the
SO
pin may be enabled in the
IOCFG0.SO_PULLUP
configuration bit.
CSn
should have an external pull-up
resistor or be set to a high level during
power down mode in order to prevent the
input from floating.
SI
and
SCLK
should be
set to a defined level to prevent the inputs
from floating.
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EM2420-RTB 功能描述:IC RF TXRX ZIGBEE 2.4GHZ 48-QLP RoHS:是 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件
EM2420-RTR 功能描述:IC RF TXRX ZIGBEE 2.4GHZ 48-QLP RoHS:是 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件
EM2420-STB 功能描述:IC RF TXRX ZIGBEE 2.4GHZ 48-QLP RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應(yīng)用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB，表面貼裝 存儲(chǔ)容量:- 天線連接器:PCB，表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件
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