ADF7021
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the ADF7021 family does
The ADF7021 is a high-performance, narrow-band transceiver IC operating from 80 MHz to 650 MHz and 862 MHz to 950 MHz. It supports 2FSK, 3FSK, 4FSK, and MSK modulation with data rates from 0.05 kbps to 32.8 kbps. The device features a 2.3 V to 3.6 V power supply, receiver sensitivity down to -130 dBm, and programmable output power from -16 dBm to +13 dBm. It includes an on-chip VCO, fractional-N PLL, 7-bit ADC, and temperature sensor. Engineers typically use this component for wireless metering, remote control systems, keyless entry, home automation, and private mobile radio applications requiring spectral shaping and narrow-band standards compliance.
ADF7021 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 2.3 V | — | 3.6 V | ADI datasheet, p. 11 — Table 5. | |
| operating temperature | -40 °C | — | 85 °C | (ta); Table 5. | ADI datasheet, p. 11 — Table 5. |
| input capacitance | — | — | 10 pF | LOGIC INPUTS | ADI datasheet, p. 10 — DIGITAL SPECIFICATIONS |
| operating frequency | 160 MHz | — | 650 MHz | External inductor VCO; (direct output); Table 1. | ADI datasheet, p. 5 — Table 1. |
| data rate | 50 bps | — | — | IF_BW = 25 kHz; DATA RATE | ADI datasheet, p. 6 — TRANSMISSION SPECIFICATIONS |
| output power | — | 13 dBm | — | VDD = 3.0 V, TA = 25°C; TRANSMIT POWER | ADI datasheet, p. 6 — TRANSMISSION SPECIFICATIONS |
| sensitivity | — | -24 dBm | — | LNA_GAIN = 30, MIXER_LINEARITY = 0; Raised Cosine 4FSK | ADI datasheet, p. 8 — Table 3. |
| output voltage low | — | — | 400 mV | IOL = 500 µA; LOGIC OUTPUTS | ADI datasheet, p. 10 — DIGITAL SPECIFICATIONS |