Ordering information, Electrical specifications, Pin assignments – Linx Technologies EVM-GPS-F4 User Manual

Page 4: Pin descriptions

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Ordering Information

Ordering Information

Part Number

Description

EVM-GPS-F4

F4 Series Evaluation Module

RXM-GPS-F4

F4 Series GPS Receiver Module

Figure 2: Ordering Information

Electrical Specifications

Ordering Information

Parameter

Designation Min. Typ. Max. Units

Notes

POWER SUPPLY

Supply Voltage

V

CC

1.71

1.8

1.89

VDC

Input Pin Voltage

3.6

VDC

Output Pin Voltage

1.8

VDC

Supply Current

I

CC

Peak

130

mA

1

Acquisition

46

mA

1

Tracking

27.5

mA

1

Hibernate

20

µA

2

Ready-to-Start

9

µA

2

ANTENNA PORT

RF Input Impedance

R

IN

50

Ω

ENVIRONMENTAL

Operating Temperature Range

–30

+85

°C

Storage Temperature Range

–40

+85

°C

Figure 3: Electrical Specifications

Notes:
1. V

CC

= 1.8V

2. Initial state after power us applied

Warning:

This product incorporates numerous static-sensitive

components. Always wear an ESD wrist strap and observe proper ESD
handling procedures when working with this device. Failure to observe
this precaution may result in module damage or failure.

Pin Assignments

GND
NC
NC
VCC
NC
VBACKUP
GPIOC
GPIOB
GPIOA
GND

GND

GPIOD

GPIOE

TXM

RXM

1PPS

RESET

RFPWRUP

ON_OFF

GND

Figure 4: EVM-GPS-F4 Pin Assignments

Pin Descriptions

Pin Descriptions

Pin Number

Name

I/O Description

1

GPIOD

I/O General Purpose I/O. 3.6V tolerant.

2

GPIOE

I/O General Purpose I/O. 3.6V tolerant.

3

1PPS

O

1 Pulse Per Second. 1.8V level.

4

TX

O

Serial output (default NMEA)

5

RX

I

Serial input (default NMEA). 3.6V tolerant.

6

GPIOC

I/O General Purpose I/O. 3.6V tolerant.

7, 11

P1, P2

I

Pull to 1.8V VCC through 2.2k resistors.

8

/RESET

I

Reset Input. Active low with an internal pull-up.

Internal reset is preferred; external reset will clear all

RAM. 3.6V tolerant.

9

RFPWRUP

O

Power State Indicator

10

ON_OFF

I

Power Control Pin. Internal 10k pull-down resistor.

3.6V tolerant.

12

VCC

P

Supply Voltage

13

G1

I

Pull to GND through a 100k resistor.

14

GPIOA

I/O General Purpose I/O. 3.6V tolerant.

15

GPIOB

I/O General Purpose I/O. 3.6V tolerant.

16, 17

NC

No electrical connection.

18, 20, 21, 22

GND

P

Ground

19

RFIN

I

GPS RF signal input

Figure 5: F4 Series GPS Receiver Pin Descriptions

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