Table 3-1. Integrated Circuits Voltages - Motorola ASTRO XTL 1500 Detailed Service Manual

Theory of Operation: Power Management
Please refer to
circuitry and power distribution information and the various voltages used by the ICs on the main
board are shown in
Integrated Circuit
OMAP IC
Unbuffered inverter
for 32 kHz clock
Schmidt trigger for 32
kHz clock
Buffer array for
isolation from
Unswitched supplies
to OMAP
SSI line analog
switches
8MB SDRAM
2MB Flash
TPS65012 PWR MGT
IC
Indicator LEDs NAND
Gates
USB Enable
MOSFET
UNSW_VCC Linear
Voltage Regulator
SW_5V Switching
Voltage Regulator
ATTiny13
Microcontroller
Flip Flop to control
SW_B+
USB / UART MUX IC
USB Current Limiter
IC
Volume Knob ADC IC
All LEDs
6815854H01-A
"Chapter 7. Schematics, Component Location Diagrams, and Parts
Table 3-1.

Table 3-1. Integrated Circuits Voltages

UNSW_VCC
A+
(3.0V)
U1001
U1003
U1005
U1007
U2201
U2200
U2302
U2302
D4100
D4101
D4102
D4103
D4104
D4105
D4106
D4107
D4108
SW_5V 1.55 V 3.3 V
U1000 U1000
U2100
Q2100
U3100
U3101
3-5
Lists", for detailed
2.8 V 1.88 V
U1000 U1000
U1004
U1009
U1002
U1300
U1301
U2101
U2102
U2103
U4201
June 15, 2005