RDA Microelectronics, Inc.
RDA1846S Datasheet V0.1
8. Application Diagram
Figure 8.1 RDA1846S Application Diagram
Notes:
1
2
3
4
5
6
7
8
U1: RDA1846S Chip;
AVDD: Power Supply for RDA1846S (3.3~4.8V);
AVDD_PA: Power Supply for RF PA, its voltage depends on the actual PA design;
C0~C11: AVDD decouple capacitance (1nF and 100nF in pairs), as close to AVDD pin as possible;
CA1~CA2: Audio AC couple capacitance (~47uF);
Cc: Compensation capacitance connected between pin Cc and GND (~47uF);
Crf: RF AC couple capacitance (~150pF);
CX1~CX2: XTAL oscillator load capacitance. Its value depends on the chosen XTAL (if using external TCXO, clk
should be sent into pin XTAL1 with Vpp about 1.5V, and pin XTAL2 should be connected to GND);
R0~R1(optional): resistors for serial interface wire SDIO and SCLK (~10kΩ);
9
10 Pins NC(10,14,17,19,20) should be floating;
The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in
part without prior written permission of RDA.
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RDC [ RDC SEMICONDUCTOR ]
