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Analog Devices - Multichannel ISM Band FSK/GFSK/OOK/GOOK/ASK Transmitter

Numéro de référence ADF7012
Description Multichannel ISM Band FSK/GFSK/OOK/GOOK/ASK Transmitter
Fabricant Analog Devices 
Logo Analog Devices 





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ADF7012 fiche technique
Multichannel ISM Band
FSK/GFSK/OOK/GOOK/ASK Transmitter
ADF7012
FEATURES
GENERAL DESCRIPTION
Single-chip, low power UHF transmitter
The ADF7012 is a low power FSK/GFSK/OOK/GOOK/ASK
75 MHz to 1 GHz frequency operation
UHF transmitter designed for short-range devices (SRDs). The
Multichannel operation using fractional-N PLL
output power, output channels, deviation frequency, and mod-
2.3 V to 3.6 V operation
ulation type are programmable by using four, 32-bit registers.
On-board regulator
Programmable output power
−16 dBm to +14 dBm, 0.4 dB steps
Data rates: dc to 179.2 kbps
Low current consumption
868 MHz, 10 dBm, 21 mA
433 MHz, 10 dBm, 17 mA
315 MHz, 0 dBm, 10 mA
Programmable low battery voltage indicator
24-lead TSSOP
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.
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,
APPLICATIONS
the output can be moved in <1 ppm steps so that indirect com-
pensation for frequency error in the crystal reference can be made.
Low cost wireless data transfer
Security systems
RF remote controls
A simple 3-wire interface controls the registers. In power-down,
the part has a typical quiescent current of <0.1 μA.
Wireless metering
Secure keyless entry
FUNCTIONAL BLOCK DIAGRAM
PRINTED
INDUCTOR
OSC1
OSC2
CLKOUT
L1 L2 CVCO
DVDD
DGND
TxCLK
÷CLK
÷R
OOK\ASK
PFD/
CHARGE
PUMP
+FRACTIONAL N
VCO
OOK\ASK
PA
VDD
RFOUT
RFGND
LDO
REGULATOR
CREG
TxDATA
LE
DATA
CLK
FSK\GFSK
SERIAL
INTERFACE
FREQUENCY
COMPENSATION
CENTER
FREQUENCY
Σ-Δ
PLL LOCK
DETECT
BATTERY
MONITOR
MUXOUT
MUXOUT
RSET
CE AGND
Figure 1.
Rev. A
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2007–2009 Analog Devices, Inc. All rights reserved.

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