AA003257-G Navman Wireless, AA003257-G Datasheet - Page 10

• Manufacturer Part Number: AA003257-G
• Description: DEV KIT FOR JUPITER 32XLP
• Manufacturer: Navman Wireless
• Type: Receiver, GPSr

Specifications of AA003257-G

• Frequency: 1575.42MHz
• For Use With/related Products: Jupiter 32 XLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 943-1001

5.0 Electrical requirements
5.1 Power supply
LA000267D © 2008 Navman Wireless OEM. All rights reserved. Proprietary information and specifications subject to change without notice.
5.1.1 Primary power
The Jupiter 32 xLP GPS receiver is designed to operate from a single supply voltage,
meeting the requirements shown in Table 5-1.
5.1.2 Battery backup (SRAM/RTC backup)
During ‘powered down’ conditions, the SRAM and RTC (Real Time Clock) may be kept
operating by supplying power from the VBATT as shown in Table 5-1.
5.1.3 VCC_RF power supply
The VCC_RF (pad F3) provides a regulated 2.85 V power source. The specifications for this
supply are as follows:
5.1.4 External antenna voltage
DC power is supplied to the external antenna through the antenna power input pad (
The receiver does not use this supply. The DC supply to the RF connection does not current
limit in the event of a short circuit. Reference designs for antenna current limit are available in
the Jupiter 32 xLP Integrator’s manual (LA000605).
The external antenna characteristics are as follows:
5.1.5 RF (Radio Frequency) input
RF input is 1575.42 MHz (L1 Band) at a level between –135 dBm and –159 dBm into a 50 Ohm
impedance. This input may have a DC voltage impressed upon it to supply power to an active
antenna. The maximum input return loss is –9 dB.
WARNING!
The GPS receiver will experience permanent damage if the antenna or its cable
develops a short circuit and the external antenna current is not limited.
voltage: 2.85 V ± 2%
current max: 50 mA
voltage (typ): 3 V
voltage max: 12 V
current max: 50 mA
input voltage
average sustained power
(after 1st solution)
power (typ) using ATP*
battery backup voltage**
battery backup current
ripple
*Using Adaptive TricklePower with a 1 s update
**Battery backup voltage must not fall below 1. V
Table 5-1: Operating power for the
Parameter
@ 3 V: <82 mW
not to exceed 50 mV peak to peak
Jupiter 32 xLP
56 mW at 3.3 V
3.0 to 3.6 VDC
1.9 to 3.6 VDC
5 to 6 µA (typ)
Value
@ 3.3 V: <95 mW
VANT
).
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