GP501

IEEE 802.15.4 Communications Controller

GP_P005_PB_05157 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: 9 dB more reliable

link budget compared to single antenna

 Additional robustness by packet-in-packet

resynchronization

 30 dB better robustness to Wi-Fi Interference

 External LNA/PA signals for extended range

 Hardware accelerated AES and CCM* encryption with

128, 192 and 256-bit keys

 1.5 Kbyte RAM for data buffering

 Advanced Energy Management, supporting intermitted

energy sources and coin cell battery operation

 External Controller SPI Slave interface

 Stand-alone RF4CE DutyCycling support and RF4CE

packet filtering when the host is asleep

 Coexistence Interface with other radios in the device

Excellent Range and Reliability

The GP501 has been optimized for reliable communication in

harsh radio environments. The -93 dBm receiver sensitivity

allows extended coverage. Built-in antenna diversity with two

antennas improves the reliable link budget by 9 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 the

combination

of

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 GP501 with other potentially

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

Ultra-Low Power Consumption

The

GP501

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 GP501 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

Reset mode

10 nA

Timed, using 16 MHz crystal

800 µA

Receive

20 mA

Transmit (at 0 dBm)

21 mA

Supply Voltage

2.1 to 3.6 V

Interfaces

SPI Slave serial host interface

Control for external LNA/PA

Coexistence Interface with other radios

Crystal Frequency

16.000 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

-93 dBm typical

9 dB

(increases the 'effective' receiver sensitivity to -102 dBm)

Co-channel Rejection

> -2.5 dB

Adjacent Channel

Rejection

> 30 dB

Alt. Adjacent Channel

Rejection

> 45 dB

Wi-Fi IEEE 802.11g

> 27 dB

> 27 dB

Transmit Power

+3 dBm

(adjustable down in 1 dB steps)

Radio Management

Antenna Diversity

Digital RSSI

Link Quality Indication