Automotive Applications

 Japan Intelligent Transport Systems 700 MHz power amplifier:

ARIB STD-T109

 LTE Cellular Band 13 power amplifier

 Active distributed antenna system

 Cellular repeaters

 Driver amplifier

Features

 AEC-Q100 grade 3 (-40 °C to +85 °C) qualification in process

 High gain: 35 dB (unconditionally stable)

 High linearity:

Adjacent channel power (ACP) ≤ -39 dBm/100 kHz

with POUT = +23.5 dBm

(10 MHz signal bandwidth LTE modulated signal)

 RF input and output internally matched to 50 Ω

 Integrated active bias: performance compensated over temp

 Integrated coupler for output power monitoring

 PA on/off function: 4.0 μs switching time

 Single supply voltage: 3.3 V

 Minimal external components

 Level 3 PPAP available at release to production

 Small 5 x 5 mm, 28-pin package

(MSL3, 260 C per JEDEC J-STD-020)

Description

The SKYA21050 is a high-linearity power amplifier (PA) with fully

matched input/output and high gain. The compact 5 x 5 mm PA is

designed for the Japan market 760 MHz vehicle-to-vehicle and

infrastructure communication based on the ARIB STD-T109.

The active biasing circuitry is integrated to compensate PA

performance over temperature, voltage, and process variation as

well as an internal coupler for power monitoring.

A block diagram of the SKYA21050 is shown in Figure 1. The

device package and pinout are shown in Figure 2.