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1 electrical connections (smt pad interface) – Navman JUPITER LA000605D User Manual

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LA000605D © 2007 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.

2.1 Electrical connections (SMT pad interface)

The round hole on the front label side of the chip locates pad A1. The pads are designated

A-F and 1-7. Details of the pad layout and numbering are shown in Figure 2-1.

Pad No

Pad Names

Type

Description

A1

RF_IN

I

RF Input 50 ohm

A2

GND

P

RF signal ground return

A3

GND

P

ground

A4

VANT

P

active antenna power input

A5

GPIO15

I/O

reserved

A6

GPIO14

I/O

reserved

A7

RF_ON

O

output to indicate whether the RF section is

enabled (active high)

B1

GND

P

RF signal ground return

B3

VDD_BB

P

baseband power supply input for external

regulator build option - DO NOT CONNECT

B4

GPIO4

I/O

reserved

B5

GPIO13

I/O

reserved

B6

VDD_RTC

P

RTC power supply input for external regulator

build option - DO NOT CONNECT

B7

GPIO1

I/O

reserved

C1

GND

P

ground

C2

TCXO_IN

I

TCXO input for external TCXO build option

- DO NOT CONNECT

C4

BOOT

I

active high to download flash firmware

C5

LNA _EN

O

external antenna enable, active high

D2

FACTORY USE ONLY

reserved

D4

N_GPS_FIX

O

active low when 2D or 3D fix data

available

D5

RXA

I

CMOS level asynchronous input for UART A

D7

TXA

O

CMOS level asynchronous output for UART A

E1

GND

P

ground

E2

GND

P

ground

E4

GPIO2

I/O

reserved

E5

N_RESET

I

master reset, active low

E6

RXB

I

CMOS level asynchronous input for UART B

E7

1PPS

O

1 pulse per second output 1µs wide

F1

PWRIN

P

3.0 - 3.6 V main power supply input

F2

VBATT

P

1.9 - 3.6 V backup battery input

F3

VCC_RF

P

RF power supply output for external regulator

option. Connect as per application circuit.

- Figure 2-2

F4

WAKEUP

I

Push-to-Fix wake-up, active high

F5

N_WAKEUP

O

low output indicates baseband is powered up

- DO NOT CONNECT

F6

TXB

O

CMOS level asynchronous output for UART B

F7

ECLK

I

external clock input, not used

Table 2-1: Jupiter 32 Module pad functions

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