AT73C201

Features • Eight High Performance Low Dropout Voltage Regulators (LDO) – Three Low Dropout Voltage Regulators (LDO) for Analog, Memories and Baseband Digital I/O – Two Low Dropout Voltage Regulators (LDO) High PSRR Low Noise for Radio Section – Two Low Dropout Voltage Regulators (LDO) Dual Mode High PSRR for Baseband Core Section DC to DC 5.6V Converter One 4.5V Voltage Regulator 10V Supply Generator Li-Ion and Ni-Mh Battery Charge Control Interface Analog to Digital 8-bit Converter Safety Charge Timers Power On/Off And Reset Control Logic Over And Under-voltage System Shutdown Voltage Detectors With Auto Power Off On-chip Temperature Sensor NTC Programmable Current Bias Three Audio Amplifiers – 0.5W on 8 Ω Audio Amplifier for Handsfree – Audio Amplifier for Earpieces – Audio Amplifier for Car Kit Two Backlight LED Drivers for Keyboard and Display Two Auxiliary Constant Current Source LED Drivers Vibrator Driver Two Power Supply Switches 32 kHz Crystal Oscillator Two Digital to Analog 8-bit Converters Serial Peripheral Interface (SPI) 100-Thin Fine-pitch Ball Grid Array Package (TFBGA), 9 x 9 mm • • • • • • • • • • • • Power Management AT73C201 Power Supply and Battery Management IC Preliminary • • • • • • • • Description The AT73C201 is a low cost, high performance, fully integrated Battery and Power Management System for Wireless Cellular Terminals. The AT73C201 integrates all the regulated power supplies needed to power a terminal chipset from a Lithium-Ion or Ni-Mh battery pack to Baseband ICs and Memories, Radio Transceiver, Analog, VCXO, LNA and PA bias and Sim Card in the case of GSM. Auxiliary low Ron power supply PMOS switches are available from either the battery pack or internal regulated power supplies, providing optimum power management by turning on or off different elements of a handset. The AT73C201 also includes a vibrator motor driver, a set of LED drivers, a smart reset circuit, and a Battery Charger Switch Driver with built-in state machine for safe boot and pre-charge operation. In addition, a set of 3 Audio Programmable Gain Amplifiers are provided for handsfree (on 8 Ω Loudspeaker), Earpiece and Car Kit easy interfacing. The functions are supervised by a set of voltage monitors, timers and a temperature shutdown circuit connected to the internal state machine. Voltages and on-chip temperatures are also visible from an external pin through a multiplexer for proper connection to the external Baseband ADC. The AT73C201 is available in a 9x9mm outline, 10x10 ball matrix BGA for optimum size and performance combination. Its very low standby power dissipation and its high noise and PSRR performances make the AT73C201 ideally suitable for recent applications on 2.5G and 3G terminals. 2741AS–PMGMT–11/03 Note: This is a summary document. A complete document is not available at this time. For more information, please contact your local Atmel sales office. Functional Diagram Figure 1. AT73C201 Functional Diagram VGATE VBAT VVIB BCKL BCKK LED1 LED2 Vibrator Driver VCHG Charge Control Interface 4-bit DAC Backlight Driver 4-bit DAC Backkey Driver LD1 Driver 10 mA LED2 Driver 10 mA Audio1 VDD4 SPKP SPKN SPI Bus NTC Digital Serial Interface AUD3R Audio2 AUD3L NTC Driver 5-bit DAC Power Supply Supervisor Measurement Multiplexer Fuse Block Audio3 AUD20 VMES Temperature Supervisor VREG9 REG9 VREG8 VBCK Power Management VREG1 VREG4 VREG2 DCDCO VREG6 VREG3 VREG7 REG8 Tempeature Sensor REG1 VBAT Power On Reset OSC2 In Squarer OSC1 OSC2 Out XTAL1 XTAL2 Crystal OSC1 REG4 REG2 DCDC REG6 REG3 REG7 Switches DAC1 DAC2 10V Supply Generator Voltage Reference SW1 SW2 DAC1 DAC2 HVSW VBAT RREF CREF VDD1 VDD2 VDD4 2 AT73C201 2741AS–PMGMT–11/03 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 1150 East Cheyenne Mtn. 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