ATA5830N-PNQW Atmel, ATA5830N-PNQW Datasheet - Page 3

• Manufacturer Part Number: ATA5830N-PNQW
• Manufacturer: Atmel

Specifications of ATA5830N-PNQW

• Lead Free Status / Rohs Status: Supplier Unconfirmed

1.3
1.3.1
1.3.2
1.3.3
1.3.4
1.3.5
1.3.6
9208DS–RKE–07/11
Main Extended Features of the Atmel ATA5830
RF Performance
Automatic Self Polling and Multi Channel Capability
Wake-up Scenario and ID Scanning
Two Parallel Receiving Paths
Channel Statistic
Antenna Tuning and SPDT
The Atmel
14dBm. The high image rejection and outstanding blocking performance enable a robust
application against interferer with a low cost design. In addition, the programmable channel fil-
ter bandwidth provides flexibility to adapt to various system requirements.
The autonomous self polling supports the automatic scanning for three different applications
such as Remote Keyless Entry (RKE), Tire Pressure Monitoring System (TPMS) and Remote
Start (RS) using one IC. Additionally multi channel systems with up to three frequencies can
be scanned. This means five frequencies can be scanned in the autonomous polling scheme;
three for RKE, one for TPMS and one for RS. The configuration of each application is indepen-
dent of the others. This is possible because of the flexibility in the digital baseband and two
different baseband receiving paths. The IC can immediately scan all applications upon
power-up without the need for any initial configuration by an external microcontroller.
The powerful baseband signal processing is designed to offload these time consuming tasks
from the host controller. This allows the transceiver to discard unwanted telegrams and limit
external microcontroller wake up to valid telegrams only. Up to 7 criteria can be used to deter-
mine the telegram validity from carrier check on the lowest level to start of frame ID pattern
match at the highest level.
The transceiver’s baseband contains two data paths. The parameters of both paths can be set
differently, e.g. the modulation type or data rate. Generally both paths are working simultane-
ously but only the first path detecting a valid telegram will be used for further data reception
and filling of the 32 byte buffer. The 32 byte receive data buffer can be accessed using SPI
commands from the external host microcontroller.
In order to accelerate the communication in multi channel applications the Atmel ATA5830
offers a feature defined as channel statistic. If this feature is selected, the IC will find the best
channel within the three RKE channels (with regard to interference) and automatically select
the best channel for the first transmission.
For applications using a loop antenna, the Atmel ATA5830 offers an automatic antenna tuning
feature which improves the antenna performance by compensating for “hand effects” or
matching component value variations. The integrated SPDT acts as RX/TX switch which elim-
inates the cost of an external RX/TX switch.
®
ATA5830 provides high sensitivity and programmable transmit power up to
Atmel ATA5830/ATA5830N
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