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ADF7021-VBCPZ Datenblatt(PDF) 1 Page - Analog Devices |
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ADF7021-VBCPZ Datenblatt(HTML) 1 Page - Analog Devices |
1 / 60 page High Performance, Narrow-Band Transceiver IC ADF7021-V Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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 ©2010 Analog Devices, Inc. All rights reserved. FEATURES High performance, low power, narrow-band transceiver Enhanced performance ADF7021-N with external VCO Frequency bands using external VCO: 80 MHz to 960 MHz Improved adjacent channel power (ACP) and adjacent channel rejection (ACR) compared with the ADF7021-N Programmable IF filter bandwidths: 9 kHz, 13.5 kHz, and 18.5 kHz Modulation schemes: 2FSK, 3FSK, 4FSK, MSK Spectral shaping: Gaussian and raised cosine filtering Data rates: 0.05 kbps to 24 kbps Power supply: 2.3 V to 3.6 V Programmable output power: −16 dBm to +13 dBm in 63 steps Automatic power amplifier (PA) ramp control Receiver sensitivity −125 dBm at 250 bps, 2FSK −122 dBm at 1 kbps, 2FSK Patent pending, on-chip image rejection calibration On-chip fractional-N PLL On-chip, 7-bit ADC and temperature sensor Fully automatic frequency control (AFC) loop Digital received signal strength indication (RSSI) Integrated Tx/Rx switch Leakage current in power-down mode: 0.1 μA APPLICATIONS Narrow-band, short-range device (SRD) standards ETSI EN 300 220 500 mW output power capability in 869 MHz g3 subband with external PA High performance receiver rejection, blocking, and adjacent channel power (ACP) FCC Part 90 (meets Emission Mask D requirements) FCC Part 95 ARIB STD-T67 Wireless metering Narrow-band wireless telemetry FUNCTIONAL BLOCK DIAGRAM 2FSK 3FSK 4FSK DEMODULATOR CLOCK AND DATA RECOVERY 7-BIT ADC GAIN DIV R RFOUT LNA PFD CP BUFFER OSC1 OSC2 N/N + 1 DIV P OSC CLKOUT TEST MUX CPOUT LDO[1:4] MUXOUT RSET CREG[1:4] CE ADF7021-V TxRxCLK SWD TxRxDATA SLE SDATA SREAD SCLK IF FILTER PA RAMP L2 MUX 2FSK 3FSK 4FSK MOD CONTROL GAUSSIAN/ RAISED COSINE FILTER 3FSK ENCODING ÷1/÷2 ÷2 CLK DIV Σ-Δ MODULATOR SERIAL PORT Tx/Rx CONTROL AGC CONTROL AFC CONTROL TEMP SENSOR RSSI/ LOG AMP RLNA RFIN RFIN Figure 1. |
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