Anaren A1101R04C, Руководство пользователя

Страница: 8 / 27

Distributor of Anaren: Excellent Integrated System Limited
Datasheet of A1101R04C00GM - IC RADIO MOD 433MHZ CONN 24-LGA
Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com
A1101R04C – User’s Manual Page 7 of 26
Release Date 02/20/12
transmission and when one occurs put the received frame in the FIFO. When neither transmit
nor receive is required, the device can enter either an Idle mode, from which it can quickly re-
enter receive or transmit mode, or a low power sleep mode, from which a crystal startup is also
required prior to transmit or receive operation.
Below a block diagram is given for the A1101R04C module.

Antenna
o
The antenna couples energy between the air and the AIR module. For
applications where installations are done by an end user (non-professional), an
omni-directional antenna pattern is desired, such that the application will work
equally well in any direction. Similarly for peer to peer or point to multipoint
applications an omni-directional pattern is desired such that all nodes have a fair
chance of communicating. The A1101R04C has an approved near omni-
directional monopole antenna listed in Table 1. Note that the end radiation
pattern depends not only on the antenna, but also on the ground plane,
enclosure and installation environment.

Filtering
o
Filtering removes spurious signals to comply with regulatory intentional radiator
requirements.

Matching
o
Matching provides the correct loading of the transmit amplifier to achieve the
highest output power as well as the correct loading for the receive LNA to
achieve the best sensitivity.

Physical
o
The physical layer provides conversions between data, symbol and RF signal.

MAC
o
The MAC layer is part of the Logical Link Layer and provides frame handling,
addressing and medium access services.

Microcontroller Interface
o
The microcontroller interface exposes registers and commands for the physical
and MAC layers to a microcontroller.

Power Management
o
Power management ensures a stable supply for the internal functions as well as
providing means for a low power sleep mode (in which case, most of the
transceiver is power off).
Table 1 Approved Antenna
Item Part Number Manufacturer Type Gain
(dBi)
1 66089-0406 Anaren Monopole whip, 173mm lead 3
8 / 27
8 / 27