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System Block Diagrams: GPS Receiver, Wireless Speaker 25<br />
Global Positioning Satellite Receiver<br />
➔<br />
Antenna<br />
SAW<br />
Filter<br />
LNA<br />
SAW<br />
Filter<br />
Pre<br />
Amp<br />
ADC<br />
Pre<br />
Amp<br />
IrDA<br />
VCO<br />
Clock Driver<br />
USB<br />
OSC<br />
Keypad<br />
Frequency<br />
Synthesizer<br />
LCD<br />
Controller<br />
DSP/CPU<br />
MMC<br />
SmartCard<br />
EEPROM<br />
Flash<br />
Speaker<br />
<strong>Audio</strong><br />
Amp<br />
Touch-Screen<br />
Controller<br />
<strong>Audio</strong><br />
Codec<br />
SRAM<br />
Headphones<br />
KEY<br />
TI Product<br />
Microphone<br />
Power Management<br />
See complete portable<br />
power solutions on page 37.<br />
Wireless Voice over IP (VoIP)<br />
PCB Antenna<br />
DSP/CPU CoreAnalog<br />
Main SupplyRF Supply LED SupplyLCD Supply Supply Supply<br />
LDO<br />
Headset<br />
LDO<br />
DC/DC SoC DC/DC<br />
Boost (RF+MCU) Boost<br />
Converter Converter<br />
2.8-V LDO<br />
Regulator<br />
-30-dB Amplifier<br />
DC/DC<br />
and Anti-alias<br />
Buck LDO<br />
Filter<br />
Converter<br />
Li-ion<br />
Battery<br />
Digital I/O<br />
Memory<br />
LDO<br />
Supply Integrated Speaker<br />
Voltage Power<br />
Supervisor Mgmt.<br />
Dongle<br />
PCB Antenna<br />
Power Management<br />
PWM<br />
Filter<br />
Battery Power<br />
Management<br />
Mono<br />
Headphone<br />
Driver<br />
Microphone<br />
KEY<br />
TI Products<br />
TI SoC<br />
(RF+MCU+<br />
USB)<br />
3.3-V LDO<br />
Regulator<br />
USB<br />
Connector<br />
Power Management<br />
See complete portable<br />
power solutions on page 37.<br />
For the latest information on end-equipment system block diagrams, visit: www.ti.com/applications<br />
Texas Instruments <strong>1Q</strong> <strong>2007</strong><br />
<strong>Audio</strong> <strong>Solutions</strong> <strong>Guide</strong>
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