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| 型号： | MAX7044EVKIT-315 |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT MAX7044 |
| 标准包装： | 1 |
| 系列： | * |
19-3221; Rev 4; 2/11
ATION
EVALU
AVAILA
KIT
BLE
300MHz to 450MHz High-Efficiency,
Crystal-Based +13dBm ASK Transmitter
General Description
The MAX7044 crystal-referenced phase-locked-loop
(PLL) VHF/UHF transmitter is designed to transmit
OOK/ASK data in the 300MHz to 450MHz frequency
range. The MAX7044 supports data rates up to 100kbps,
and provides output power up to +13dBm into a 50 Ω
load while only drawing 7.7mA at 2.7V.
The crystal-based architecture of the MAX7044 elimi-
nates many of the common problems with SAW-based
transmitters by providing greater modulation depth,
faster frequency settling, higher tolerance of the trans-
mit frequency, and reduced temperature dependence.
The MAX7044 also features a low supply voltage of
+2.1V to +3.6V. These improvements enable better
overall receiver performance when using the MAX7044
together with a superheterodyne receiver such as the
MAX1470 or MAX1473.
A simple, single-input data interface and a buffered
clock-out signal at 1/16th the crystal frequency make
the MAX7044 compatible with almost any microcon-
troller or code-hopping generator.
The MAX7044 is available in an 8-pin SOT23 package
and is specified over the -40°C to +125°C automotive
Features
o +2.1V to +3.6V Single-Supply Operation
o OOK/ASK Transmit Data Format
o Up to 100kbps Data Rate
o +13dBm Output Power into 50Ω Load
o Low 7.7mA (typ) Operating Supply Current*
o Uses Small, Low-Cost Crystal
o Small 3mm x 3mm 8-Pin SOT23 Package
o Fast-On Oscillator: 250μs Startup Time
* At 50% duty cycle (315MHz, 2.7V supply, +13dBm output
power)
Ordering Information
temperature range.
Remote Keyless Entry (RKE)
Applications
PART
MAX7044AKA+T
TEMP RANGE
-40°C to +125°C
PIN-
PACKAGE
8 SOT23
TOP MARK
AEJW
Tire-Pressure Monitoring (TPM)
Security Systems
Garage Door Openers
RF Remote Controls
Wireless Game Consoles
Wireless Computer Peripherals
Wireless Sensors
Typical Application Circuit
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Pin Configuration
3.0V
1
XTAL1
f XTAL
XTAL2
8
3.0V
TOP VIEW
+
100nF 220pF
ANTENNA
680pF
2
3
GND V DD
MAX7044
PAGND DATA
7
6
100nF
DATA INPUT
XTAL1 1
GND 2
PAGND 3
MAX7044
8
7
6
XTAL2
V DD
DATA
4
PAOUT CLKOUT
5
CLOCK
OUTPUT
(f CLKOUT =
PAOUT 4
5
CLKOUT
f XTAL /16)
SOT23
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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| MAX7044EVKIT-433 | 功能描述:射频开发工具 MAX7044 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 |
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| MAX7048ATL+T | 制造商:Maxim Integrated Products 功能描述:288-945 MHZ TRANSCEIVER - Tape and Reel |
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