Nokia RH-66 Troubleshooting Manual page 30

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