Overview
The ADF7021-NBCPZ-RL7 is a high-performance, low-power, narrow-band transceiver produced by Analog Devices Inc. This device is designed for operation in the narrow-band, license-free ISM bands and licensed bands, covering frequency ranges from 80 MHz to 650 MHz and 842 MHz to 916 MHz. It is particularly suited for applications requiring compliance with various global regulatory standards, including the Japanese ARIB STD-T67, European ETSI EN 300 220, Chinese short range device regulations, and North American FCC Part 15, Part 90, and Part 95.
The ADF7021-NBCPZ-RL7 features dual voltage-controlled oscillators (VCOs) and a low-noise fractional-N PLL, enabling dual-band operation and frequency-hopping spread spectrum (FHSS) systems. It supports multiple modulation schemes such as 2FSK, 3FSK, 4FSK, MSK, and Gaussian and raised cosine filtering, making it versatile for various communication protocols.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Temperature | -40°C to +85°C |
| Supply Voltage | 2.3 V to 3.6 V |
| Frequency Range | 80 MHz to 650 MHz, 842 MHz to 916 MHz |
| Modulation Schemes | 2FSK, 3FSK, 4FSK, MSK |
| Data Rates | 0.05 kbps to 24 kbps |
| Output Power | -16 dBm to +13 dBm in 63 steps |
| Receiver Sensitivity | -130 dBm at 100 bps, 2FSK; -122 dBm at 1 kbps, 2FSK |
| IF Filter Bandwidths | 9 kHz, 13.5 kHz, 18.5 kHz |
| Package | 48-Lead Lead Frame Chip Scale Package (LFCSP) |
| Transmit Current | 13.8 mA to 27.1 mA |
| Receive Current | 16.3 mA to 21.7 mA |
Key Features
- Dual VCO design for dual-band operation and frequency-hopping spread spectrum (FHSS) systems.
- Support for multiple modulation schemes: 2FSK, 3FSK, 4FSK, MSK, and Gaussian and raised cosine filtering.
- Programmable output power and automatic power amplifier (PA) ramp control.
- On-chip image rejection calibration and automatic frequency control (AFC) loop.
- On-chip 7-bit ADC and temperature sensor with ±10°C accuracy over the full operating temperature range.
- Low power consumption in both transmit and receive modes.
- High output power and sensitivity for long-range communication.
- Flexible modulation support for various protocol requirements.
Applications
- Wireless sensor networks.
- Industrial automation.
- Home and building automation.
- Asset tracking.
- Telemetry and remote control systems.
Q & A
- What is the operating temperature range of the ADF7021-NBCPZ-RL7?
The operating temperature range is -40°C to +85°C.
- What are the supported modulation schemes?
The device supports 2FSK, 3FSK, 4FSK, MSK, and Gaussian and raised cosine filtering.
- What is the frequency range of the ADF7021-NBCPZ-RL7?
The frequency range is 80 MHz to 650 MHz and 842 MHz to 916 MHz.
- What is the power supply range for this device?
The power supply range is 2.3 V to 3.6 V.
- What are the programmable output power steps?
The output power is programmable in 63 steps from -16 dBm to +13 dBm.
- What is the receiver sensitivity at 100 bps, 2FSK?
The receiver sensitivity is -130 dBm at 100 bps, 2FSK.
- Does the device support automatic frequency control (AFC)?
Yes, it features a fully automatic frequency control loop (AFC) with programmable pull-in range.
- What is the accuracy of the on-chip temperature sensor?
The temperature sensor is accurate to ±10°C over the full operating temperature range.
- What are the typical current consumptions for transmit and receive modes?
The transmit current is 13.8 mA to 27.1 mA, and the receive current is 16.3 mA to 21.7 mA.
- Is the device RoHS compliant?
Yes, the ADF7021-NBCPZ-RL7 is RoHS3 compliant.
