ATR0621 Datasheet, PDF (14/20 Pages) ATMEL Corporation – GPS Baseband Processor

The Antenna Supervisor Software will be configured as follows:
1. Enable Control Signal
2. Enable Short Circuit Detection (power down antenna via ANTON if short is detected
via NANTSHORT)
3. Enable Open Circuit Detection via NAADET
3.4 External Connections for a Working GPS System
Figure 3-2. Example of an External Connection
ATR0601
SIGH
SIGL
SC
P1
P2
+3V
(see Power Supply)
NC
See Table 3-15
NC
See Table 3-15
See Table 3-15
See Table 3-15
See Table 3-15
See Table 3-15
NC
NC
NC
NC
NC
NC
NC
GND
SIGHI
SIGLO
CLK23
RF_ON
NSLEEP
NRESET
ATR0621
P8
P20
EM_DA0 - 15
EM_A1 - 19
USB_DM
USB_DP
P0 - 7
P9 - 15
P16 - 17
P19
P23 - 30
TMS
TCK
TDI
NTRST
TDO
TEST_MODE
DBG_EN
P31
P18
P22
P21
TOUT1
XT_IN
XT_OUT
GND
NSHDN
LDO_EN
LDO_OUT
VDD18
LDO_IN
LDOBAT_IN
VBAT18
STATUS LED
TIMEPULSE
Optional
USB
Optional
USART 1
Optional
USART 2
NC
32.368 kHz
(see RTC)
+3V
(see Power Supply)
14 ATR0621 [Preliminary]
4890AS–GPS–09/05