Table 2-4, Vocon board dc power distribution -6 – Motorola SSETM 5000 User Manual
Page 28
November 11, 2004
6881094C12-A
2-6
Theory of Operation: Power Distribution
lists the supply voltages and the circuits that use these voltages.
Table 2-4. VOCON Board DC Power Distribution
Supply
Name
Output
Voltage
Supply Type
Unprogrammed
Output Voltage
Circuits Supplied
UNSW_B+
9 to 6 Vdc
7.5 Vdc
nominal
Battery
N/A
VCC5 input
Mechanical switch
Power switch (FET)
Secure module
SW_B+
9 to 6 Vdc
7.5 Vdc
nominal
Battery
N/A
VSW1 input (GCAP)
Audio power amplifier
Side connector
SW_B+ to transceiver board
GCAP IC
Secure module
USB circuitry
VCC5
5Vdc
Linear regula-
tor
N/A
Smart battery circuitry
Int. / ext. microphone bias
Audio preamplifier
Digital-support IC
Display LEDs
VSW1
3.8 Vdc
Switching
regulator
software pro-
grammable
3.2 Vdc
3-V regulators (RF)
VSW2 input
V2 input
1.55 V regulator bias
VSW2
1.8 Vdc
Switching
regulator
software pro-
grammable
2.2 Vdc
Dual-core processor’s external
memory interface
FLASH IC
SRAM
1.55 V regulator bias
VSW_1.55
1.55 Vdc
Linear regula-
tor
N/A
Dual-core processor core
V2
2.893 Vdc
Switching
regulator
software pro-
grammable
2.775 Vdc
Dual-core processor’s I/O ring
Digital-support IC
EEPOT
Display
16.8 MHz buffer