ST Microelectronics SPSGRF User Manual

Datasheet

Features

• Programmable Radio features

- Modulation schemes: 2-FSK, GFSK, MSK, GMSK, OOk, ASK

- Air data rate from 1 to 500 kbps

- On board antenna

• RF features

- Receiver sensitivity: -118 dBm

- Programmable RF output power

• Host Interface

- SPI

• General I/O

- Up to 32 programmable I/O functions on 4 GPIO programmable module pins

• Two Carrier Frequency versions

- 868 MHz tuned antenna (Europe)

- 915 MHz tuned antenna (USA)

SPSGRF-868 / 915

SubGiga (868 or 915 MHz) programmable transceiver module

Preliminary module picture

11.5 mm x 13.5 mm x 2.0 mm

April 2014 rev 0.1

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

www.st.com

SPSGRF

1 Description

The SPSGRF is an easy to use sub-gigahertz transceiver module, with many programmable features. The module provides a complete RF platform in a tiny form factor.

The SPSGRF enables electronic devices with wireless connectivity, not requiring any RF experience or expertise for integration into the final product. The SPSGRF, being a certified solution, optimizes the time to market of the final applications.

The module is designed for maximum performance in a minimal space including 4 programmable I/O pin and SPI serial interface.

2 Applications

• M2M industrial control

• Service diagnostic

• Data acquisition equipment

• Machine control

• Sensor monitoring

• Security system

• Mobile health

P a g e | 2 Rev 1.0

SPSGRF

Rating

Min T

ypical

Max Unit

Rating

Min Typical

Max Unit

5 Hardware Specifications

General Conditions (VIN= 3.3V and 25°C)

Absolute Maximum Ratings

Storage temperature range -40 - +85 °C Supply voltage, VIN -0.3 - + 3.9 Volts I/O pin Voltage -0.3 - + 3.9 Volts RF saturation input power - 10 - dBm

Recommended Operating Conditions

Operating Temperature Range -40 - 85 °C Supply Voltage VIN 1.8 3.3 3.6 Volts Signals & I/O Pin Voltage

(according Supply Voltage) RF Frequency Bandwidth (SPSGRF-868) RF Frequency Bandwidth (SPSGRF-915)

Power-On reset (POR) module internally generated signal

The power-on-reset circuit generates a reset pulse upon power-up which is used to initialize

the entire internal module digital logic. Power-on-reset senses module Vin voltage.

1.8 - 3.6 Volts 863 870 MHz 902 928 MHz

Pin connection diagram

P a g e | 6 Rev 1.0

SP

SGRF

ALT Function

V

max. Tolerant

Initial State

Pin Assignment

Name Type Pin # Description

SPI Interface

SPI_CLK I 7 SPI_MOSI I 9 SPI_MISO O 8

SPI_CS I 10

Power and Ground

Vin 5

GND 6

Module SHUTDOWN

SDN I 11

GPIO – General Purpose Input/Output

GPIO [0] I/O 4

GPIO [1] I/O 3 GPIO [2] I/O 2 GPIO [3] I/O 1

SPI CLOCK (Max. 8 MHz)

SPI MOSI (MASTER out SLAVE in)

SPI MISO (MASTER in / SLAVE out)

SPI “Chip Select” (SPI slave select)

Vin

GND

SHUTDOWN input (active high.)

Programmable Input / Output

& Analog Temperature output

Programmable Input / Output Programmable Input / Output Programmable Input / Output

Vin Vin Vin Vin

(1.8V + 3.6V max.)

(1.8V + Vin max).

(1.8V + Vin max.).

(1.8V + Vin max.). (1.8V + Vin max.). (1.8V + Vin max.).

Digital Output

Low Power

Digital Output

Low Power

Digital Output

Low Power

Digital Output

Low Power

.

. . .

Pin1 = GPIO_3 (TBD) Pin11 = SDN Pin2 = GPIO_2 (TBD) Pin10 = SPI_CS Pin3 = GPIO_1 (TBD) Pin9 = SPI_MOSI Pin4 = GPIO_0 (TBD) Pin8 = SPI_MISO Pin5 = Vin Pin7 = SPI_CLK Pin6 = GND

Rev 1.0 P a g e | 7

SPSGRF

Symbol

Parameter

Test Conditions

Typ. Unit

Symbol

Parameter

Test Conditions

Typ. Unit

Modulation

Standards

Parameter

Max. Unit

Module Current Consumption

SPSGRF-868 module

Idd Supply current

Operating mode

Tx , +11.6 dBm , 2-FSK , 868 MHz

Operating mode

Tx , - 7 dBm , 2-FSK , 868 MHz

Operating mode

Rx , 8685 MHz

Command mode 0.6 mA

Shutdown High Level -Vdd

(with other I/O in High impedance)

22 mA

9 mA

10 mA

0.1

µA

SPSGRF-915 module

Idd Supply current

Operating mode

Tx , +11.6 dBm , 2-FSK , 915 MHz

Operating mode

Tx , - 7 dBm , 2-FSK , 915 MHz

Operating mode

Rx , 915 MHz

Command mode 0.6 mA

Shutdown High Level -Vdd

(with other I/O in High impedance)

22 mA

9 mA

10 mA

0.1

µA

Module RF compliance limits

The RF compliance limits are those tested for FCC and CE certification using the dedicated DONGLE (PC92A.V01). These limits are enforced by the DONGLE firmware. Care must be taken with custom application firmware to ensure these limits are not exceeded, voiding the FCC and CE certification.

RF compliance limits table

2-FSK GFSK MSK

OOK ASK

FCC Part 15.207 FCC Part 15.247

EN 300 220-2 V2.4.1 EN 301 489-01 V1.9.2 EN 301 489-03 V1.4.1

FCC Part 15.207 FCC Part 15.249

EN 300 220-2 V2.4.1 EN 301 489-01 V1.9.2 EN 301 489-03 V1.4.1

(1) (1)

(2)

(2) (2)

(2)

(2) (2)

Data rate 500 kbps

Conducted

Output power

Data rate

Conducted

Output power

1. FCC standards are only applicable to the SPSGRF-915 module.

2. EN standards are only applicable to the SPSGRF-868 module.

P a g e | 8 Rev 1.0

+11.6 dBm

250

6 dBm

kbps