User Guide

2115i/2116/2116i (RH-66)
Baseband Description and Troubleshooting Nokia Customer Care
Page 30 ©2005 Nokia Corporation Company Confidential Issue 1 03/2005
Figure 21: GPS block diagram
PLL
Oscillator
RF Control
I/F
AGC
A/D
LNA
TI RF
ASIC
RF-BB
I/F
(1.87V)
RF Control
I/F
(1.8V)
Baseband Core
ARM
RAM
RTC CAL
TCXO CAL
1.8V GPS BB/Cellular I/F
GPS DATA
GPS Clock
SPI Interface
VRF 2.8V
VBATT
GND
VBATT
GND
GPS ENGINE
Cellular
RF
UPP
UEM
CELLULAR
ENGINE
VCORE
REG
System Clock
Secondary UART
(Diagnostic)
System Clock
(19.2MHz CDMA)
Timestamp
ResetX
USART
32KHz RTC
SleepX
VCORE
VIO
SleepX
Sleep CLK