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SI4749

Si470X/1X/2X/3X/4X EVALUATION BOARD TEST PROCEDURE

Silicon Laboratories 

AN388

2. FM Tuner Testing

This section covers testing the FM specs for the Si470x/2x/3x receiver. Table 2 provides a summary of tests and

equipment. Refer to the individual figures that show the instrument configurations used to generate test reports for

FM testing of each EVB.

Table 2. Si470x/2x/3x/4x FM Tuner Test Equipment

Test

Equipment

Sensitivity

RDS Sensitivity

AM Suppression

Spurious Response

Audio Output Voltage

Audio Output L/R Imbalance

Audio Band Limits

Stereo Separation

Audio THD

Audio SINAD

Audio SNR

Pilot Suppression

Rohde & Schwarz UPL Audio Analyzer (with digital audio functionality)

Rohde & Schwarz SML01 + Stereo/RDS Signal Generator #1

Agilent E3646A Power Supply*

Mini-Circuits Power Combiner

Image Rejection

Selectivity

IP3

Equipment above plus:

Rohde & Schwarz SML01 Signal Generator #2

*Note: You can power up the EVB through the USB port for these tests.

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