PDF ADF7012 Data sheet ( Hoja de datos )

Número de pieza	ADF7012
Descripción	Multichannel ISM Band FSK/GFSK/OOK/GOOK/ASK Transmitter
Fabricantes	Analog Devices
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No Preview Available ! 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. 1 page ADF7012 Parameter PHASE-LOCKED LOOP PARAMETERS VCO Gain 315 MHz 433 MHz 868 MHz 915 MHz VCO Tuning Range Spurious (IVCO Min/Max) Charge Pump Current Setting [00] Setting [01] Setting [10] Setting [11] Phase Noise (In band)1 315 MHz 433 MHz 868 MHz 915 MHz Phase Noise (Out of Band)1 315 MHz 433 MHz 868 MHz 915 MHz Harmonic Content (Second)2 Harmonic Content (Third)2 Harmonic Content (Others)2 Harmonic Content (Second)2 Harmonic Content (Third)2 Harmonic Content (Others)2 LOGIC INPUTS Input High Voltage, VINH Input Low Voltage, VINL Input Current, IINH/IINL Input Capacitance, CIN LOGIC OUTPUTS Output High Voltage, VOH Output High Current, IOH, Output Low Voltage, VOL B Version 22 24 80 88 0.3/2.0 −65/−70 0.3 0.9 1.5 2.1 −85 −83 −80 −80 −103 −104 −115 −114 −20 −30 −27 −24 −14 −19 0.7 × DVDD 0.2 × DVDD ±1 4.0 DVDD − 0.4 500 0.4 1 Measurements made with NFRAC = 2048. 2 Measurements made without harmonic filter. Unit Conditions/Comments MHz/V typ MHz/V typ MHz/V typ MHz/V typ V min/max dBc VCO divide-by-2 active VCO divide-by-2 active IVCO is programmable mA typ mA typ mA typ mA typ Referring to DB[7:6] in Function Register Referring to DB[7:6] in Function Register Referring to DB[7:6] in Function Register Referring to DB[7:6] in Function Register dBc/Hz typ dBc/Hz typ dBc/Hz typ dBc/Hz typ PFD = 10 MHz, 5 kHz offset, IVCO = 2 mA PFD = 10 MHz, 5 kHz offset, IVCO = 2 mA PFD = 10 MHz, 5 kHz offset, IVCO = 3 mA PFD = 10 MHz, 5 kHz offset, IVCO = 3 mA dBc/Hz typ dBc/Hz typ dBc/Hz typ dBc/Hz typ dBc typ dBc typ dBc typ dBc typ dBc typ dBc typ PFD = 10 MHz, 1 MHz offset, IVCO = 2 mA PFD = 10 MHz, 1 MHz offset, IVCO = 2 mA PFD = 10 MHz, 1 MHz offset, IVCO = 3 mA PFD = 10 MHz, 1 MHz offset, IVCO = 3 mA FRF = FVCO FRF = FVCO/N (where N = 2, 4, 8) V min V max μA max pF max V min μA max V max CMOS output chosen IOL = 500 μA Rev. A \| Page 4 of 28 5 Page ADF7012 868 MHz 0 –20 –40 –60 –80 –100 –120 –140 –160 1.0k = NORMAL FREQUENCY = 251.3 kHz LEVEL = –99.39dBc/Hz 10.0k 100.0k PHASE NOISE (Hz) 1.0M 10.0M Figure 16. Phase Noise Response—ICP = 2.5 mA, IVCO = 1.44 mA, RFOUT = 868.95 MHz, PFD = 4.9152 MHz, Power = 12.5 dBm, PA Bias = Max REF LVL 15dBm 15 10 0 –10 –20 1MAX –40.44dBm 869.20000000MHz RBW 10kHz RF ATT 30dB VBW 10kHz MIXER –20dBm SWT 15ms UNIT dBm 2A LN 1MA –30 –40 D2 –36dBm 1 –50 –60 1 [T1] 40.44dBm –70 869.20000000MHz 2 [T1] 8.02dBm –80 868.96673347MHz –85 CENTER 868.944489MHz 60kHz/ SPAN 600kHz Figure 17. FSK Modulation, Power = 12.5 dBm, Data Rate = 38.4 kbps, FDEVIATION = ±19.2 kHz REF LVL 15dBm 15 10 0 –10 –20 1MAX 12.55dBm 869.025050100MHz 1 RBW 2kHz RF ATT 30dB VBW 2kHz MIXER –20dBm SWT 16s UNIT dBm 1 [T1] 2 [T1] 3 [T1] 12.55dBm 869.02505010MHz –57.89dBm 859.16695500MHz –81.97dBm 862.00000000MHz A LN 1MA –30 –40 D2 –36dBm –50 2 –60 D1 –54dBm –70 –80 3 –85 START 856.5MHz 2.5MHz/ STOP 881.5MHz Figure 18. Spurious Components—Meets ETSI Specs REF LVL 15dBm 15 10 1 RBW 12.27dBm VBW 869.33867735MHz SWT 02 –10 –20 1MAX 34 1MHz RF ATT 40dB 1MHz 16ms UNIT dBm A 1MA –30 D1 –30dBm –40 –50 –60 1 [T1] 12.27dBm 3 [T1] –70 869.33867735MHz 2 [T1] –4.00dBm 4 [T1] –80 1.72865731GHz –85 CENTER 3.8GHz 640MHz/ –16.88dBm 2.59699399GHz –15.06dBm 3.46913828GHz SPAN 6.4GHz Figure 19. Harmonic Response, RFOUT Matched to 50 Ω, No Filter REF LVL 15dBm 15 10 1 0 –10 –20 1MAX RBW 1kHz RF ATT 30dB 10.39dBm VBW 1kHz MIXER –20dBm 869.33867735MHz SWT 10ms UNIT dBm 1 [T1] 3 [T1] 2 [T1] 10.39dBm 869.33867735MHz –50.92dBm 1.72000000GHz –50.40dBm 2.59600000GHz A LN 1MA –30 D2 –30dBm –40 23 –50 –60 –70 –80 –85 START 3.8GHz 640MHz/ SPAN 6.4GHz Figure 20. Harmonic Response, Fifth-Order Chebyshev Filter Rev. A \| Page 10 of 28 11 Page

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