Filter
Top Products
FirstGPS Starter Kit User Guide
5
FirstGPS Starter Kit Overview
1
Figure 1.1 Colossus / IO Block Diagram
Power
The hardware core requires three voltages:
In a typical implementation, 3.3 VDC is supplied to VCC and a
voltage regulator distributes the voltage to the various components
as required.
Hardware Core Voltage
VCC 3.3 ±0.3 VDC
V_RF 3.0 ±0.3 VDC
V_CORE 2.0 ±0.2 VDC
LI BLOCK
Vcc
SAW
FILTER
RF IN
RF+
RF-
Matching
Network
BBI
FILT
BBQ
FILT
Colossus
RF ASIC
12.504 MHZ
XTAL OSC
DSP ASIC
and
COOLRISC
IO
VOLTAGE
REGULATOR
V_RF
Fr
FrFsIQ
V_RF
V_CORE
Vcc
TEMP
SENSE
TxD
RxD
PPS