Anadigics (Seattle, WA) has introduced a new style of RF power amplifier (PA) optimized to power 3G and 4G small-cell base stations. Paired with digital or RF predistortion systems, these highly integrated designs create easy-to-use solutions that deliver very high efficiencies with the stringent linearity required for WCDMA, HSPA, and LTE networks. Anadigics’ new PAs demonstrate compelling performance in compact surface mount modules that incorporate circuit components normally required separately.
The first Anadigics product that demonstrates this new power amplifier approach is the ASC7517. Used in a pre-distortion system, the PA supports the stringent adjacent channel level rejection (ACLR) requirements of WCDMA, HSPA, and LTE systems without compromising efficiency. This multistage PA also provides 42 dB of RF gain, thereby eliminating the need for driver amplifiers. Features include:
- 2100 MHz to 2170 MHz frequency band.
- 1.4 W of power using only a 2.85 V and 5 V supply.
- Power efficiency of 28%.
For more information, visit www.anadigics.com.