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EVAL-ADF7012EB4 PDF预览

EVAL-ADF7012EB4

更新时间: 2022-11-24 21:43:16
品牌 Logo 应用领域
亚德诺 - ADI ISM频段
页数 文件大小 规格书
28页 893K
描述
Multichannel ISM Band FSK/GFSK/OOK/GOOK/ASK Transmitter

EVAL-ADF7012EB4 数据手册

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Multichannel ISM Band  
FSK/GFSK/OOK/GOOK/ASK Transmitter  
ADF7012  
FEATURES  
GENERAL DESCRIPTION  
Single-chip, low power UHF transmitter  
75 MHz to 1 GHz frequency operation  
Multichannel operation using Frac-N PLL  
2.3 V to 3.6 V operation  
On-board regulator—stable performance  
Programmable output power:  
16 dBm to +14 dBm, 0.4 dB steps  
Data rates: dc to 179.2 kbps  
The ADF7012 is a low power FSK/GFSK/OOK/GOOK/ASK  
UHF transmitter designed for short range devices (SRDs). The  
output power, output channels, deviation frequency, and mod-  
ulation type are programmable by using four, 32-bit registers.  
The fractional-N PLL and VCO with external inductor enable  
the user to select any frequency in the 75 MHz to 1 GHz band.  
The fast lock times of the fractional-N PLL make the ADF7012  
suitable in fast frequency hopping systems. The fine frequency  
deviations available and PLL phase noise performance facilitates  
narrow-band operation.  
Low current consumption:  
868 MHz, 10 dBm, 21 mA  
433 MHz, 10 dBm, 17 mA  
315 MHz, 0 dBm, 10 mA  
There are five selectable modulation schemes: binary frequency  
shift keying (FSK), Gaussian frequency shift keying (GFSK),  
binary on-off keying (OOK), Gaussian on-off keying (GOOK),  
and amplitude shift keying (ASK). In the compensation register,  
the output can be moved in <1 ppm steps so that indirect com-  
pensation for frequency error in the crystal reference can be  
made.  
Programmable low battery voltage indicator  
24-lead TSSOP  
APPLICATIONS  
Low cost wireless data transfer  
Security systems  
RF remote controls  
Wireless metering  
A simple 3-wire interface controls the registers. In power-down,  
the part has a typical quiescent current of <0.1 μA.  
Secure keyless entry  
FUNCTIONAL BLOCK DIAGRAM  
C
REG  
PRINTED  
INDUCTOR  
CLK  
CPV  
CP  
GND  
OUT  
DD  
OSC1  
OSC2  
L1  
L2  
C
VCO  
V
DD  
OOK\ASK  
PA  
÷CLK  
VCO  
RF  
OUT  
÷R  
PFD/  
CHARGE  
PUMP  
RF GND  
DV  
DD  
D
C
REG  
GND  
LDO  
REGULATOR  
+FRACTIONAL N  
OOK\ASK  
FSK\GFSK  
TxCLK  
Σ-∆  
TxDATA  
PLL LOCK  
DETECT  
MUXOUT  
LE  
DATA  
CLK  
FREQUENCY  
COMPENSATION  
MUXOUT  
SERIAL  
INTERFACE  
R
SET  
BATTERY  
MONITOR  
CENTER  
FREQUENCY  
CE  
A
GND  
Figure 1.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable.  
However, no responsibility is assumed by Analog Devices for its use, nor for any  
infringements of patents or other rights of third parties that may result from its use.  
Specifications subject to change without notice. No license is granted by implication  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  

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