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Manufacturer / Brand: AD
Details: High Performance Narrowband ISM Transceiver IC IC
Series: ADF7021
Quantity Available: Over 49330 pieces

Datasheet for EVAL-ADF7021DBJZ:

EVAL-ADF7021DBJZ datasheet
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Product Parameters
  • Manufacturer Part Number : EVAL-ADF7021DBJZ
  • Manufacturer : AD
  • Description : High Performance Narrowband ISM Transceiver IC IC
  • Series : ADF7021
  • Reference Price : USD 0
  • Our Price : We have a better price, contact us by email
  • Product Type : RF Integrated Transmitters, Receivers, & Transceivers
  • Function : Low Power RF Transceivers
  • Current Suggest : Production
  • Status : Production
  • ROHS Status : ROHS Compliant (Lead Free)
  • Package Type : Daughter Board (426 MHz - 435 MHz - External Inductor VCO)
  • Pins : -
  • MFG Package Case : -
  • Part Type : EVAL
  • Standard Packing Type : -
  • Standard Packing Quantity : -
  • Working Temperature : -
  • Other Part Number : EVAL-ADF7021DBJZ
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of EVAL-ADF7021DBJZ
  • Low power, high performance, narrowband transciever
  • Frequency Bands: 80-650MHz and 862-940MHz
  • Modulation schemes: 2FSK, 3FSK, 4FSK
  • Spectral shaping: Gaussian and Raised Cosine Filtering
  • Automatic PA ramp
  • Data rates supported: 0.05kps to 25kbps
  • Programmable output power: -16dBm to +13dBm
  • Low IF architecture with programmable IF bandwidths of 12.5/18.5/25kHz
  • 2.3V to 3.6V Power Supply
  • Receiver sensitivity: -123dBm @ 1kbps FSK
  • Fully automatic frequency control loop (AFC)compensates for lower tolerance crystals
  • High Accuracy digital RSSI and integrated Tx/Rx switch
Product Detailed Description for EVAL-ADF7021DBJZ

The ADF7021 is a low power, highly integrated 2FSK/3FSK/4FSK transceiver. It is designed to operate in the narrow-band, license-free ISM bands and licensed bands in the 80 MHz to 650 MHz and 862 MHz to 940 MHz frequency ranges. It has both Gaussian and raised cosine data filtering options to improve spectral efficiency for narrow-band applications.

It is suitable for circuit applications targeted at EuropeanETSI-EN 300-220, the Japanese ARIB STD-T67, the Chinese Short Range Device regulations, and the North American FCC Part 15, Part 90, and Part 95 regulatory standards. A complete transceiver can be built using a small number of external discrete components, making the ADF7021 very suitable for price-sensitive and area-sensitive applications.

The transmit section contains a voltage controlled oscillator (VCO) and a low noise fractional-N PLL with output resolution of <1 ppm. This frequency-agile PLL allows the ADF7021 to be used in frequency hopping spread spectrum (FHSS) systems. The VCO operates at twice the fundamental frequency to reduce spurious emissions and frequency pulling problems. The transmitter output power is programmable in 63 steps from −16 dBm to +13 dBm and has an automatic power ramp control to prevent spectral splatter and help meet regulatory standards. The transceiver RF frequency, channel spacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of 2.3 V to 3.6 V and can be powered down when not in use.

A low IF architecture is used in the receiver (100 kHz), minimizing power consumption and the external component count while avoiding interference problems at low frequencies. The IF filter has programmable bandwidths of 12.5 kHz, 18.75 kHz, and 25 kHz. The ADF7021 supports a wide variety of programmable features including Rx linearity, sensitivity, and IF bandwidth, allowing the user to trade off receiver sensitivity and selectivity against current consumption, depending on the application. The receiver also features a patent-pending automatic frequency control (AFC) loop with programmable pull-in range, allowing the PLL to track out the frequency error in the incoming signal.

An on-chip ADC provides readback of an integrated tempera¬ture sensor, an external analog input, the battery voltage, and the RSSI signal, which provides savings on an ADC in some applications. The temperature sensor is accurate to ±10°C over the full operating temperature range of −40°C to +85°C. This accuracy can be improved by doing a 1-point calibration at room temperature and storing the result in memory.


Lifecycle information of EVAL-ADF7021DBJZ

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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