adf7023-j Analog Devices, Inc., adf7023-j Datasheet - Page 5
![no-image](/images/no-image-200.jpg)
adf7023-j
Manufacturer Part Number
adf7023-j
Description
High Performance, Low Power, Ism Band Fsk/gfsk/msk/gmsk Transceiver Ic
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADF7023-J.pdf
(100 pages)
- Current page: 5 of 100
- Download datasheet (2Mb)
payload data stored in packet RAM. In receive mode, the
communications processor can detect and interrupt the host
processor on reception of preamble, sync word, address, and CRC
and store the received payload to packet RAM. The ADF7023-J
uses an efficient interrupt system comprising MAC level interrupts
and PHY level interrupts that can be individually set. The payload
data plus the 16-bit CRC can be encoded/decoded using
Manchester or 8b/10b encoding. Alternatively, data whitening
and dewhitening can be applied.
The SWM allows the ADF7023-J to wake up autonomously from
sleep using the internal wake-up timer without intervention from
the host processor. After wake-up, the ADF7023-J is controlled
by the communications processor. This functionality allows
carrier sense, packet sniffing, and packet reception while the
host processor is in sleep, thereby reducing overall system current
consumption. The smart wake mode can wake the host processor
on an interrupt condition. These interrupt conditions can be
configured to include the reception of valid preamble, sync
word, CRC, or address match. Wake-up from sleep mode can
Rev. 0 | Page 5 of 100
also be triggered by the host processor. For systems requiring
very accurate wake-up timing, a 32 kHz oscillator can be used
to drive the wake-up timer. Alternatively, the internal RC oscillator
can be used, which gives lower current consumption in sleep.
The ADF7023-J features an AES engine with hardware
acceleration that provides 128-bit block encryption and
decryption with key sizes of 128 bits, 192 bits, and 256 bits.
Both electronic code book (ECB) and Cipher Block Chaining
Mode 1 (CBC Mode 1) are supported. The AES engine can be
used to encrypt/decrypt packet data and can be used as a stand-
alone engine for encryption/decryption by the host processor.
The AES engine is enabled on the ADF7023-J by downloading
the AES firmware module to program RAM.
An on-chip, 8-bit ADC provides readback of an external analog
input, the RSSI signal, or an integrated temperature sensor. An
integrated battery voltage monitor raises an interrupt flag to the
host processor whenever the battery voltage drops below a user-
defined threshold.
ADF7023-J
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