Rev. 0.3 3/13

Copyright © 2013 by Silicon Laboratories

AN603

AN603

1. Introduction

The purpose of this document is to describe the test procedures used in Silicon Laboratories for the Si4822/26/27/

40/44-DEMO AM/FM/SW tuner board. It is also intended to enable customers to exactly replicate Silicon

Laboratories’ test environment so that variances in customers’ and Silicon Laboratories’ measured results can be

accurately compared. This document covers FM, AM, and SW tests for the Si4822/40 and Si4826/27/44 receiver.

The Si4822/26/27/40/44-DEMO board provides a platform to test and operate the Si4822/26/27/40/44 tuner. Refer

to the Si4822/26/27/40/44-DEMO Board User’s Guide for the operation details of the demo board.

2. FM Tuner Testing Setup

2.1. FM Common Setup

FM tuner standard configuration:



Tune exactly to 98.0 MHz. See the Si4822/26/27/40/44-DEMO Board User’s Guide for details.



Set volume to maximum unless otherwise specified.



Ensure cable length between the generator and antenna input is as short as possible.

Figure 1. FM Tuner Setup with One Generator

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