High Performance, Narrow-Band Transceiver IC Data Sheet ADF7021-V FEATURES On-chip fractional-N PLL On-chip, 7-bit ADC and temperature sensor High performance, low power, narrow-band transceiver Fully automatic frequency control (AFC) loop Enhanced performance ADF7021-N with external VCO Digital received signal strength indication (RSSI) Frequency bands using external VCO: 80 MHz to 960 MHz Integrated Tx/Rx switch Improved adjacent channel power (ACP) and adjacent Leakage current in power-down mode: 0.1 A channel rejection (ACR) compared with the ADF7021-N Programmable IF filter bandwidths: 9 kHz, 13.5 kHz, APPLICATIONS and 18.5 kHz Narrow-band, short-range device (SRD) standards Modulation schemes: 2FSK, 3FSK, 4FSK, MSK ETSI EN 300 220 Spectral shaping: Gaussian and raised cosine filtering 500 mW output power capability in 869 MHz g3 subband Data rates: 0.05 kbps to 24 kbps with external PA Power supply: 2.3 V to 3.6 V High performance receiver rejection, blocking, and Programmable output power: 16 dBm to +13 dBm adjacent channel power (ACP) in 63 steps FCC Part 90 (meets Emission Mask D requirements) Automatic power amplifier (PA) ramp control FCC Part 95 Receiver sensitivity ARIB STD-T67 125 dBm at 250 bps, 2FSK Wireless metering 122 dBm at 1 kbps, 2FSK Narrow-band wireless telemetry Patent pending, on-chip image rejection calibration FUNCTIONAL BLOCK DIAGRAM RSET CE CREG 1:4 MUXOUT TEMP MUX 7-BIT ADC SENSOR R LDO 1:4 LNA TEST MUX 2FSK LNA TxRxCLK 3FSK CLOCK RFIN RSSI/ Tx/Rx 4FSK AND DATA TxRxDATA IF FILTER LOG AMP CONTROL RECOVERY RFIN DEMODULATOR SWD GAIN AGC SLE CONTROL SDATA SERIAL PORT ADF7021-V SREAD AFC CONTROL SCLK PA RAMP 2FSK GAUSSIAN/ - 3FSK 1/2 RAISED COSINE RFOUT DIV P N/N + 1 MODULATOR 4FSK FILTER MOD CONTROL 2 3FSK ENCODING BUFFER CP PFD CLK DIV R OSC DIV L2 CPOUT OSC1 OSC2 CLKOUT Figure 1. Rev. B Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20102014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 08635-001