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The MC13783 is a highly integrated power management and audio component dedicated to handset and portable applications covering GSM, GPRS, EDGE, and UMTS standards. The MC13783 implements high- performance audio functions suited to high- end applications such as smartphones and UMTS handsets.
The MC13783 provides the following key benefits:
• Full power management and audio functionality in one module optimizes system size.
• High level of integration reduces the power management and audio system bill of materials.
• Versatile solution offers large possibilities of flexibility through simple programming (64 registers of 24- bit data).
• implemented DVS saves significant battery resources in every mode ( compatibility with a large number of accessories).
• Dual channel voice ADC improves intelligibility.

The detailed block diagram of the MC13783 in Figure 1 shows the wide functionality of the MC13783, including the following features:
Battery charger interface for wall charging and USB charging
10 bit ADC for battery monitoring and other readout functions
Buck switchers for direct supply of the processor cores
Boost switcher for backlight and USB on the go supply
Regulators with internal and external pass devices
Transmit amplifiers for two handset microphones and a headset microphone
Receive amplifiers for earpiece, loudspeaker, headset and line out
13 bit Voice CODEC with dual ADC channel and both narrow and wide band sampling
13 bit Stereo recording from an analog input source such as FM radio
16 bit Stereo DAC supporting multiple sample rates
Dual SSI audio bus with network mode for connection to multiple devices
Power control logic with processor interface and event detection
Real time clock and crystal oscillator circuitry
Dual SPI control bus with arbitration mechanism
Multiple backlight drivers and LED control including funlight support
USB FS/LS transceiver with OTG and CEA-936-A Carkit support
Touchscreen interface
The main functions of the MC13783 are described in the following sections. A detailed block diagram is shown in Figure 1, on page 3.