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参数资料
| 型号： | MAX7034AUI/V+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/14页 |
| 文件大小： | 0K |
| 描述： | IC RCVR 315/433MHZ ASK 28TSSOP |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 频率： | 300MHz ~ 450MHz |
| 灵敏度： | -114dBm |
| 数据传输率 - 最大： | 66 kbps |
| 调制或协议： | ASK |
| 应用： | RKE，遥测，安全技术 |
| 电流 - 接收： | 7.2mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 特点： | 配有 RSSI |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 带卷 (TR) |
315MHz/434MHz ASK Superheterodyne
Receiver
Peak Detector
The peak-detector output (PDOUT), in conjunction with
an external RC filter, creates a DC output voltage equal
to the peak value of the data signal. The resistor pro-
vides a path for the capacitor to discharge, allowing the
peak detector to dynamically follow peak changes of
the data-filter output voltage. For faster data slicer
response, use the circuit shown in Figure 4. For more
DATA
SLICER
MAX7034
details on hysteresis and peak-detector applications,
refer to Maxim Application Note 3671, Data Slicing
Techniques for UHF ASK Receivers.
Layout Considerations
A properly designed PCB is an essential part of any
25
DATAOUT
C8
20
DSN
R1
23
DSP
19
DFO
RF/microwave circuit. On high-frequency inputs and
outputs, use controlled-impedance lines and keep them
as short as possible to minimize losses and radiation.
At high frequencies, trace lengths that are on the order
of λ /10 or longer act as antennas.
Keeping the traces short also reduces parasitic induc-
tance. Generally, 1 inch of a PCB trace adds about
20nH of parasitic inductance. The parasitic inductance
can have a dramatic effect on the effective inductance
of a passive component. For example, a 0.5 inch trace
connecting a 100nH inductor adds an extra 10nH of
Figure 2. Generating Data Slicer Threshold
MAX7034
DATA
SLICER
inductance or 10%.
25
23
20
19
To reduce the parasitic inductance, use wider traces
DATAOUT
DSP
DSN
R1
DFO
and a solid ground or power plane below the signal
traces. Also, use low-inductance connections to ground
on all GND pins, and place decoupling capacitors
R2
R3
close to all power-supply pins.
R*
*OPTIONAL
C8
Control Interface Considerations
When operating the MAX7034 with a +4.5V to +5.5V
supply voltage, the SHDN pin can be driven by a
microcontroller with either +3.0V or +5V interface logic
levels. When operating the MAX7034 with a +3.0V to
+3.6V supply, only +3.0V logic from the microcontroller
is allowed.
Figure 3. Generating Data Slicer Hysteresis
MAX7034
DATA
SLICER
25
DATAOUT
20
DSN
23
DSP
19
DFO
26
PDOUT
25k Ω
47nF
Figure 4. Using PDOUT for Faster Startup
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7034EVKIT-315+ | 功能描述:射频开发工具 MAX7034 Eval Kit 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 |
| MAX7034EVKIT-433+ | 功能描述:射频开发工具 MAX7034 Eval Kit 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 |
| MAX7036 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:300MHz to 450MHz ASK Receiver with Internal IF Filter |
| MAX7036_10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:300MHz to 450MHz ASK Receiver with Internal IF Filter |
| MAX7036EVKIT | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:MAX7036 Evaluation Kit |
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