Texas Instruments TRF3701, Руководство пользователя, Страница: 9 / 29

1-1 Overview
Overview
This document relates to the TRF3701/TRF3702 direct launch quadrature
modulator for applications in the transmit path of base stations and
communications equipment. The TRF3701 operates between 400 MHz and
1.5 GHz and the TRF3702 between 1.5 GHz and 2.5 GHz. A quadrature
modulator is used for up conversion of signals from the transmit chain DAC to
the RF power amplifier device. Evaluating a modulator complex performance
involves careful bias voltage setup, an LO signal and at least two signals (I/Q)
at the input to the modulator. This document describes the wide range of test
options available with this EVM and the factors that must be considered in
using the EVM.
Topic Page
1.1 Purpose 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 EVM Circuit Overview 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Power Requirements 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 TRF3701/2 EVM Operating Procedure 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1