SI4700 datasheet(5/68 Pages) SILABS

부품명	SI4700

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

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제조업체	SILABS [Silicon Laboratories]

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5 / 68 page

AN388

Rev. 0.2

5

TABLE OF C ONTENTS

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. FM Tuner Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.1. FM Tuner Testing Measurement Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2. FM Tuner Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3. FM Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3. AM/Shortwave/Longwave Tuner Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.1. AM Tuner Testing Measurement Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.2. AM/Shortwave/Longwave Tuner Testing Procedures . . . . . . . . . . . . . . . . . . . . . . . . 32

4. Weather Band Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.1. Weather Band Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5. FM Transmitter Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

5.1. FM Transmit Testing Measurement Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 49

5.2. FM Transmit Testing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6. Digital Audio Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.1. Digital Audio Output for AM and FM Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.2. Digital Audio Input for FM Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Appendix A—Pre-emphasis and De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

유사한 부품 번호 - SI4700

제조업체	부품명	데이터시트	상세설명
Silicon Laboratories	SI4700	154Kb / 2P	Broadcast FM Radio Tuner for Portable Applications
	SI4700	1Mb / 42P	Device initialization sequence and busmode selection
	SI4700	999Kb / 2P	EVALUATION BOARD QUICK-START GUIDE
	SI4700	3Mb / 302P	Si47XX PROGRAMMING GUIDE
	SI4700	1Mb / 69P	Si47XX ANTENNA, SCHEMATIC, LAYOUT, AND DESIGN GUIDELINES

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