Intermec 073290-001 用户手册

Power Supply Controller

I2C Bus

Scan + 5 Volts

+ 3.3 Volt Backup

Regulator

FPGA power enable

Aquila (CX1) Power Supply

Block Diagram (6/26/02)

Voltage Limit

detector

PLL_VCC

LDO

Manual

Reset

3.3V Reset

Supercap

Voltage

Reference

Temp

Sensor

Supercap Charge

Enable

PWR_EN

RESET_IN

BATT_FAULT_IRQ

VDD_FAULT*

PSC_IRQ*

SUS_RES*

FPGA

(+2.5 Volts)

Voltage Detect

Voltage

Conditioner

LDO

Vcc

Core Voltage

Regulator

(.8 - 1.5V)

En

Filter

Network

Vbatt_wall from

Battery Pack

PWR_EN

+ 5 Volt

Regulator

+ 3.3 Volt
Regulator

 Cur. Iimited Switch

 Cur. Iimited Switch

 Cur. Iimited Switch

Teth Scan Vcc

Scan 3.3 Volts

DOCK_EN

PCI_3.3 Volts

FET Switch

+5 V to Status LEDs

SCAN_PWR_EN

 Cur. Iimited Switch

CF_PWR_EN

3.3 volts (Batt_Vcc, Vccq,

memory, etc)

SD_Vcc

SD_PWR_EN

FET Switch

BT_Vcc

BT_PWR_EN

LDO

AUDIO_5 V

LED Backlight Supply

LCD Bias Generator

LCD BIAS SUPPLY

LED BACKLIGHT

(color display)

BKLT_ON
BKLT_LOW

LCD_VDD_EN

PWM BIAS ADJUST

I/O KEY

PROG_EN

SERIAL_PROG_CLK

SERIAL_PROG_DATA