The ADL5590/ADL5591 is a monolithic RF quadrature modulator designed for use from 869 MHz to 960 MHz and from 1805 MHz to 1990 MHz. This modulator features excellent phase accuracy and amplitude balance, providing excellent noise floor and linearity.
The ADL5590 and ADL5591 are monolithic RF quadrature modulators designed for wireless infrastructure and GSM transmitters. They operate from 869 MHz to 960 MHz (ADL5590) or 1805 MHz to 1990 MHz (ADL5591) and provide high‑performance phase and amplitude balance for direct RF modulation.
The devices are supplied in a 36‑lead LFCSP package (6 mm × 6 mm), require a single 4.75 V‑5.25 V supply, and operate over a temperature range of –40 °C to +85 °C. Key performance figures include up to 16 dBm output power, –50 dBc sideband suppression, and 29 dBm output IP3.
| Operating Frequency Range | 869 MHz – 960 MHz (ADL5590), 1805 MHz – 1990 MHz (ADL5591) |
|---|---|
| Typical Output Power | 3.75 dBm (min) – 8.0 dBm (max) at 1 V p‑p differential |
| Output P1dB | 16 dBm |
| Sideband Suppression | -50 dBc (ADL5590), -47 dBc (ADL5591) |
| LO Leakage | -50 dBc (ADL5590), -44 dBc (ADL5591) |
| Supply Voltage | 4.75 V to 5.25 V (single supply) |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 36‑lead LFCSP, 6 mm × 6 mm |
The ADL5590 operates from 869 MHz to 960 MHz.
Both devices use a single supply of 4.75 V to 5.25 V.
The ADL5591 can deliver up to 7 dBm typical output power (max 8 dBm) at 1 V p‑p differential.
They are supplied in a 36‑lead, 6 mm × 6 mm LFCSP package.