ADL5350 Datasheet | Analog Devices

FEATURES Broadband radio frequency (RF), intermediate frequency (IF), and local oscillator (LO) ports Conversion loss: 6.8 d B Noise figure: 6.5 d B High input IP3: 25 d Bm High input P1d B: 19 d Bm Low LO drive level Single-ended design: no need for baluns Single-supply operation: 3 V at 19 m A Miniature, 2 mm × 3 mm, 8-lead LFCSP Ro HS pliant APPLICATIONS Cellular base stations Point-to-point radio links RF instrumentation GENERAL DESCRIPTION The ADL5350 is a high linearity, up-and-down converting mixer capable of operating over a broad input frequency range. It is well suited for demanding cellular base station mixer designs that require high sensitivity and effective blocker immunity. Based on a Ga As p HEMT, single-ended mixer architecture, the ADL5350 provides excellent input linearity and a low noise figure without the need for a high power level LO drive. In 850 MHz/900 MHz receive applications, the ADL5350 provides a typical conversion loss of only 6.7 d B. The input IP3 is typically greater than 25 d Bm, with an input pression point of 19 d Bm. The integrated LO amplifier allows a low LO drive level, typically only 4 d Bm for most applications. LF to 4 GHz, High Linearity Y-Mixer FUNCTIONAL BLOCK DIAGRAM RF INPUT OR OUTPUT IF OUTPUT OR INPUT IF 3V VPOS LO INPUT Figure 1. 05615-001 The high input linearity of the ADL5350 makes the device an excellent mixer for munications systems that require high blocker immunity, such as GSM 850 MHz/900 MHz and 800 MHz CDMA2000. At 2 GHz, a slightly greater supply current is required to obtain similar performance. The single-ended broadband RF/IF port allows the device to be customized for a desired band of operation using simple external filter networks. The LO-to-RF isolation is based on the LO rejection of the RF port filter network. Greater isolation can be achieved by using higher order filter networks, as described in the Applications Information section. The ADL5350 is fabricated on a Ga...