Operating instructions

5-2 Controller Board
The OMAP processor controls the operation of the transmitter, receiver, synthesizer and MAKO IC. It
also uses Flash and DDR RAM, both located externally.
1.2 Flash Memory (U2000)
The Flash memory IC is a 64Mbit CMOS device. It is supplied with 1.8V. The Flash memory has its 25
address lines and 16 data lines connected to the External Interface Module (EIM) of the OMAP IC
through the EMIFS_ADDR(25:1) and EMIFS_DATA(15:0) busses. The Flash memory contains host
firmware, DSP firmware, codeplug data, and tuning values.
1.3 DDR RAM (U2001)
The Double Data Rate DRAM (DDR RAM) is 256Mb high-speed CMOS device. It is designed to
operate in 1.8V, low-power memory system. The SDRAM has 13 address lines and 16 data lines
connected to the EIM of OMAP IC through SDRAM_ADDR(12:0) and SDRAM_DATA(15:0) busses.
1.4 MAKO IC (U3000)
The MAKO IC handles DC power distribution and audio processing (i.e. audio amplification and
analog-to-digital/ digital-to-analog conversions). It contains Switching and Linear regulators, 1W audio
amplifiers, 16-bit Voice CODEC, 11-channel 10-bit A/D Converter, 10 bit D/A Converter, support
2xUSB “OTG” transceivers, One-Wire Option Detect, and GCAI ports.
2.0 Controller Board
2.1 Radio Power Distribution
Figure 5-2: DC Power Distribution Block Diagram
RF PA, RF DRIVER, ANTENNA SWITCH
LCD, 32kHz SQUARER CKTs, LEVEL
TRANSLATOR (GPS), Trident DIG CKTs
KEYPAD LEDS - 8x
DISPLAY BACKLIGHT LEDS - 2x
RED & GRN LEDs, OPTION BOARD
1.875V_DIG_V2
MAKO DC REGULATORS
RAW_B+
GPIO1&2 PULL-UP RESISTOR, RED &
GRN LEDs, VBUS SUPPLY ENABLED
V6 ( 50mA @ 2.9V )
(2.775, 2.
9V)
V8 ( 25mA @ 5.0V )
2.775V_ANA_V7
TRIDENT CHARGE PUMP, SF SUPPLY
(800/900VCCs), IF AMP, ABACUS CP,
BATT_DATA Biasing, USB-GPIO Switch
MAKO A/D REFERENCE VOLTAGE, VOL,
HW_ID, 1-WIRE BIASING RESISTOR
MOS
SW
V7 ( 100mA @ 2.775V )
OMAP EIMFS & EIMFF (FLASH & SDRAM),
LCD, OMAP1710 PERIPHERAL PLUS PTT/
EMERG_PB/ RED & GRN LEDs/ FREQ SW
PULL -UPs, 32kHz SCHMITT TRIGGER CKTs,
ABACUS I/O, 12C DEVICE, RS232_USB_X
Pull Up Resistor, Trident
TRIDENT CODE & ANALOG CKT, LNA
ABACUS CORE & DIG CKTs
2.775V_DIG_V4
5V_ANA_V8
FET_EN
SWB+
PGLDO3
PGLDO2
BAT_TYPE
BAT_7V5
5V_ANA_VBUS1
SW1 ( 800mA @ 3.6V )
(with External FETs + Drivers)
V3 (150mA @ 1.3V )
(1.1, 1.2, 1.
3, 1.4, 1.5, 1.55, 1.6V)
SW2 (300mA @ 2.3V )
VBUS2 ( 500mA @ 5.0V )
(with External Pass xistor)
3.3V_DIG_V10
VSW5 ( 800mA @ 5.2V )
(with External FETs + Drivers)
SIDE ACCESSORY VBUS
5V_ANA_VBUS2
OMAP CORE
GPS RTC
GPS DIG
GPS RF
1 WIRE CIRCUIT, INT, MIC BIAS, USB ESD
IC, TX PRE_DRIVER, Harmonic Filter
Antenna Switch, VCO Buffer
7.5V BATTERY
IGN_X
SW_TYPE
3.6V Switcher @ 800mA
V2 (120mA @ 1.875V )
(1.55, 1.7, 1.8, 1.87
5, 1.9V)
V4 ( 100mA @ 2.775V )
V10 ( 70mA @ 3.3V )
V9 ( 50mA @ 3.0V )
(2.8, 3.0, 3.3V)
VBUS1( 500mA @ 5.0V )
(with External Pass xistor)
ON_OFF Switch
1.4V Switcher @ 800mA
1.2V LDO @ 0.15A
2.8V LDO @ 0.1A
2.8V LDO @ 0.1A
5.6V LDO @ 1A
SWB+
2.9V_DIG_V6
2.3V LDO @ 0.32A
BPLUS
AUDIO_PA
VSAVE
3A FUSE
(MECH_SW)