Applications

 FDD and TDD 2G/3G/4G LTE systems

 3GPP bands 3 and 9 small-cell base stations

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

 Active antenna array and massive MIMO

Features

 High-efficiency: PAE = 34.5% @ +28 dBm

 High linearity: +28 dBm with < -50 dBc ACLR with

pre-distortion (40 MHz LTE, 8.5 dB PAR signal)

 High gain: 36 dB

 Excellent input and output return loss: to 50  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

The SKY66391-12 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 1800 to 1900 MHz. The active

biasing circuitry is integrated to compensate PA performance over

temperature, voltage, and process variation.

The SKY66391-12 is part of a high-efficiency, pin-to-pin

compatible PA family supporting all 3GPP bands. Table 1 lists the

pin-to-pin compatible parts in the PA family.

A block diagram of the SKY66391-12 is shown in Figure 1. The

device package and pinout for the device are shown in Figure 2.

Signal pin assignments and functional pin descriptions are

described in Table 2.