Applications

• FDD and TDD 2G/3G/4G LTE systems

• 3GPP band 8 small-cell base stations

• Driver amplifier for micro-base and macro-base stations

• Active antenna array and massive MIMO

Features

• High efficiency: PAE = 40% @ +28 dBm

• High linearity: +28 dBm with < -50 dBc linearized ACLR (20 MHz LTE, 8.5 dB PAR signal)

• High gain: 34 dB

• Excellent input and output return loss: to 50 Ω system

• Integrated active bias: performance compensated over temp

• Integrated enable On/Off function: PAEN = 1.7 to 2.5 V

• Single supply voltage: 5.0 V

• Pin-to-pin compatible PA family supporting all 3GPP bands

• Compact (16-pin, 5 × 5 × 1.3 mm) package (MSL3, 260 °C per JEDEC J-STD-020)

Description

SKY66298-11 is a high-efficiency fully input/output matched power amplifier (PA) with high gain and linearity. The compact 5 × 5 mm PA is designed for FDD and TDD 2G/3G/4G LTE small cell base stations operating from 900 to 990 MHz. The active biasing circuitry is integrated to compensate PA performance over temperature, voltage, and process variation.

The SKY66298-11 is part of high efficiency, pin-to-pin compatible PA family supporting all 3GPP bands.

A block diagram of the SKY66298-11 is shown in Figure 1. The device package and pinout for the 16-pin device are shown in Figure 2. Table 1 lists the pin-to-pin compatible parts in the PA family. Signal pin assignments and functional pin descriptions are described in Table 2.