Table Of Contents; Catalogue - Realtek RTL8762C Hardware Instructions

Catalogue ..................................................................................................................................... 1
1 Special Instruction .................................................................................................................... 3
2 Features Table .......................................................................................................................... 4
3 Reset ......................................................................................................................................... 5
4 Crystal Requirements ............................................................................................................... 6
4.1 Frequency offset calibration instructions .......................................................................... 7
4.1.1 Same capacitance settings for all PCBs ..................................................................... 7
4.1.2 Individual calibration for each PCB .......................................................................... 7
4.2 Crystal start-up waiting time setting .................................................................................. 8
5 PAD ........................................................................................................................................ 10
6 Flash ....................................................................................................................................... 11
6.1 Bypass Flash Code .......................................................................................................... 11
6.2 External Flash .................................................................................................................. 11
7 Audio Microphone.................................................................................................................. 12
7.1 Analog MEMS MIC ........................................................................................................ 12
7.2 Digital MIC ..................................................................................................................... 12
7.3 Omnidirectional Condenser MIC .................................................................................... 13
8 AUXADC & LPC................................................................................................................... 14
9 DC/DC Buck Converter ......................................................................................................... 16
10 eFuse Programming .............................................................................................................. 17
11 Antenna ................................................................................................................................ 18
11.1 PCB Antenna ................................................................................................................. 18
11.2 Thimble antenna ............................................................................................................ 19
12 RF Circuit ............................................................................................................................. 20
12.1 RF Power Pin ................................................................................................................. 20
12.2 RF Matching Circuit ...................................................................................................... 20
12.3 RF trace impedance ....................................................................................................... 20
13 PCB Layout Guide ............................................................................................................... 22
13.1 Component Layout Order .............................................................................................. 22
13.2 DC/DC Circuit Components Placement & Layout ........................................................ 22
13.3 Power Bypass Capacitor Layout.................................................................................... 24
13.4 External Flash Layout .................................................................................................... 26
13.5 RF Trace Layout ............................................................................................................ 26
13.6 40MHz Crystal Layout .................................................................................................. 30
RTL8762C Evaluation Board User Manual

Catalogue

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