The document describes the features and characteristics of the ADL5502 Crest Factor Detector. This detector has a true rms response and envelope peak hold output, excellent temperature stability, and can operate in the frequency range of 450 MHz to 6000 MHz. It is suitable for power and envelope measurement of complex modulation waveforms such as W-CDMA, CDMA2000, and QPSK-/QAM-based OFDM.
The ADL5502 crest‑factor detector provides true‑rms power detection combined with an envelope peak‑hold output, enabling accurate crest‑factor measurement of complex modulation waveforms. It operates from 450 MHz to 6 GHz, requires a single 2.5 V‑3.3 V supply, and is offered in an 8‑ball 1.5 mm × 1.5 mm wafer‑level chip‑scale package.
Key features include ±0.25 dB rms and envelope detection accuracy, a 35 dB input‑power dynamic range, 500 Ω nominal input impedance, low power consumption (3 mA at 3 V), and temperature stability from –40 °C to +85 °C. The datasheet provides detailed specifications, pin configuration, performance curves, and application notes for RF transmitter and receiver measurement.
| Frequency range | 450 MHz to 6 GHz |
|---|---|
| Input impedance | 500 Ω (nominal) |
| Supply voltage range | 2.5 V to 3.3 V |
| Power consumption | 3 mA at 3 V |
| Operating temperature range | –40 °C to +85 °C |
| Package | 8‑ball WLCSP, 1.5 mm × 1.5 mm |
It operates from 450 MHz up to 6 GHz.
The device works with a single supply between 2.5 V and 3.3 V.
Typical quiescent current is about 3 mA at a 3 V supply.
The nominal input impedance is 500 Ω.