GP712

IEEE 802.15.4 Multi-Stack Multi-Channel Communications Controller

GP_P007_PB_08475 V2.00 | Subject to change without notice

2 of 3

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®

Key Features

 IEEE 802.15.4 compliant PHY and Real-Time MAC

 Operates in the worldwide 2.4 GHz ISM-band

 Excellent range by antenna diversity: 8 dB more reliable

link budget compared to single antenna

 Additional robustness by packet-in-packet

resynchronization

 External PA signals for extended range

 Hardware accelerated AES and CCM* encryption with

128, 192 and 256-bit keys

 8 Kbyte RAM for data buffering

 Extremely low standby power consumption

 External Controller SPI or UART Slave interface

 Stand-alone RF4CE DutyCycling support and RF4CE

packet filtering when the host is asleep

 Multi-Stack Multi-Channel support, operating in up to 3

PANs on different channels

 Coexistence Interface with other radios in the device

Multi Stack Support

The GP712 can support multiple protocol stacks in the host

processor, operating in up to 3 Personal Area Networks. These

PANs may be on the same or on different RF channels.

Excellent Range and Reliability

The GP712 has been optimized for reliable communication in

harsh radio environments. The excellent receiver sensitivity and

high transmit power allow extended coverage. Built-in antenna

diversity with two antennas improves the reliable link budget by

8 dB resulting in approximately twice the reliable range

compared to similar systems with only one antenna. In high

density networks the packet-in-packet resynchronization further

improves the communication reliability. The potential risks of

interference by Wi-Fi and/or Bluetooth devices have been

reduced by an excellent receiver interference rejection

capability and dynamic adaption of the frequency channel.

The Coexistence Interface can be used to enable coexistence

of the IEEE 802.15.4 radio of the GP712 with other potentially

interfering radios (Wi-Fi, Bluetooth) within the same device.

Ultra-Low Power Consumption

The

GP712

is

designed

for

ultra-low

power

network

applications. It supports RF4CE duty cycling and can wake up

the host when a specified message has been received, with

RF4CE Network

layer and Profile layer Deep Packet

Inspection, to allow the host to stay asleep as much as possible.

Low Cost

The GP712 is designed to operate on PCB designs using only

low cost components and printed circuit antennas. No

expensive shielding, chip antennas or voltage regulators

are required.

Electrical Characteristics

Using internal RC oscillator

1.2 µA

Using crystal oscillator

760 µA

Receive

14 mA

Transmit (at 0 dBm)

18 mA

Transmit (at 7 dBm)

30 mA

Supply Voltage

2.1 to 3.6 V

Interfaces

SPI Slave serial host interface

UART-based serial host interface

Coexistence Interface with other radios

External LNA/PA signals

2 Analog input lines

ADC to monitor the analog input lines and

the power supply level

Crystal Frequency

32.000 MHz (±40 ppm)

Radio Characteristics

Standards compliant

IEEE 802.15.4-2003

IEEE 802.15.4-2006

Radio Regulations

compliant

ETSI EN 300 328

FCC CFR-47 Part 15

ARIB STD-T66

Frequency Band

2400

– 2483.5 MHz

Channels

Modulation

IEEE 802.15.4

Chip rate

2 Mchip/s

Data Rate

250 kbit/s

-95 dBm typical

8 dB

(increases the 'effective' receiver sensitivity to -103 dBm)

Transmit Power

+7 dBm

(adjustable down in 1 dB steps)

Radio Management

Antenna Diversity

Digital RSSI

Link Quality Indication