- 您现在的位置：买卖IC网 > Datasheet目录55 > MICRF405YML TR (Micrel Inc)TRANSMITTER ASK/FSK 24-MLF Datasheet资料下载
参数资料
| 型号： | MICRF405YML TR |
| 厂商： | Micrel Inc |
| 文件页数： | 9/46页 |
| 文件大小： | 649K |
| 描述： | TRANSMITTER ASK/FSK 24-MLF |
| 标准包装： | 1 |
| 频率： | 290MHz ~ 980MHz |
| 应用： | ISM |
| 调制或协议： | ASK，FSK |
| 数据传输率 - 最大： | 200 kbps |
| 功率 - 输出： | 10dBm |
| 电流 - 传输： | 18mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 2.2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 24-VFQFN 裸露焊盘，24-MLF? |
| 包装： | 标准包装 |
| 产品目录页面： | 571 (CN2011-ZH PDF) |
| 其它名称： | 576-1965-6 |
第1页第2页第3页第4页第5页第6页第7页第8页当前第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
Micrel
MICRF405
April 2006
9
M9999-041906
(408) 955-1690
Writing to the Control Registers in MICRF405
Writing: A number of octets are entered into
MICRF405 followed by a load-signal to activate the
new setting. Making these events is referred to as a
write sequence. It is possible to update all, 1, or n
control registers in a write sequence. The address to
write to (or the first address to write to) can be any
valid address (0-29). The SIO line is always an input
to the MICRF405 (output from user) when writing.
What to write:
" The address of the control register to write to (or
if more than 1 control register should be written
to, the address of the 1st control register to write
to).
" A bit to enable reading or writing of the control
registers. This bit is called the R/W bit.
" The values to write into the control register(s).
Field
Comments
Address:
A 7-bit field, ranging from 0 to 29. MSB is written first.
R/W bit:
A 1-bit field, = 0 for writing
Values:
A number of octets (1-30 octets). MSB in every octet is written first. The first octet is written to the control
register with the specified address (= Address ). The next octet (if there is one) is written to the control
register with address = Address + 1 and so on.
Table 3. Writing to the Control Registers.
How to write:
Bring SEN low to start a write sequence. The active
state of the SEN line is low . Use the SCK/SIO
serial interface to clock in Address and R/W bit
and Values into the MICRF405. MICRF405 will
sample the SIO line at negative edges of SCK. Make
sure to change the state of the SIO line before the
negative edge, for instance on positive edge. Refer
to Figure 2.
Bring SEN inactive to make an internal load-signal
and complete the write-sequence. Note: there is an
exception to this point. If the programming bit called
load_en (D0 in ControlRegister0) is 0 , then no
load pulse is generated.
The two different ways to program the chip
are:
" Write to a number of control registers (0-29)
when the registers have incremental addresses
(write to 1, all or n registers)
" Write to a number of control registers when the
registers have non-incremental addresses.
Writing to a Single Register
Writing to a control register with address A6, A5,
&A0 is described here. During operation, writing to
1 register is sufficient to change the way the
transmitter works. Typical example: Change from
transmit mode to power-down.
Field
Comments
Address:
7 bit = A6, A5, &A0 (A6 = MSB. A0 = LSB)
R/W bit:
0 for writing
Values:
8 bits = D7, D6, &D0 (D7 = MSB, D0 = LSB)
Table 4. When writing to a Single Register, totally 2 octets are clocked into the MICRF405.
How to write:
" Bring SEN low
" Use SCK and SIO to clock in the 2 octets
" Bring SEN high
相关PDF资料 |
PDF描述 |
|---|---|
| MTX-102-433DR-B | MODULE TRANSMITTER 433MHZ 18DIP |
| MTX-103-915DR-B | MODULE TRANSMITTER 915MHZ 18DIP |
| MTX-405-433DR-B | MODULE TRANSMITTER 433MHZ 24DIP |
| N50P105 | IC MODULE MINI JOYSTICK SMD |
| OCB350L187Z | BOARD CALIBR CIRCUIT OPB350L187 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MICRF500 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:700MHz to 1.1GHz RadioWire RF Transceiver |
| MICRF500BLQ | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:700MHz to 1.1GHz RadioWire RF Transceiver |
| MICRF500BLQ TR | 功能描述:射频接收器 700-1000MHz, 3.0V, FSK, FH Transceiver RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MICRF500BLQTR | 功能描述:TXRX UHF 700-1100MHZ 44-LQFP RoHS:否 类别:RF/IF 和 RFID >> RF 收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:30 系列:- 频率:4.9GHz ~ 5.9GHz 数据传输率 - 最大:54Mbps 调制或协议:* 应用:* 功率 - 输出:-3dBm 灵敏度:- 电源电压:2.7 V ~ 3.6 V 电流 - 接收:* 电流 - 传输:* 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 工作温度:-25°C ~ 85°C 封装/外壳:68-TQFN 裸露焊盘 包装:管件 |
| MICRF500EVAL1 | 功能描述:射频开发工具 MICRF500 Evaluation Kit - For experimental use only RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
发布紧急采购，3分钟左右您将得到回复。