ATA5745-EK Atmel, ATA5745-EK Datasheet - Page 25

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ATA5745-EK

Manufacturer Part Number
ATA5745-EK
Description
BOARD RCVR 433MHZ RKE/TPMS
Manufacturer
Atmel
Type
Receiver, ASK/FSKr
Datasheets

Specifications of ATA5745-EK

Frequency
433MHz ~ 435MHz
For Use With/related Products
ATA5745
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
7. ASK_NFSK
Figure 7-1.
4596B–RKE–06/07
ASK_NFSK
DATA_OUT
ENABLE
ASK Preamble 2.4 Kbits/s followed by FSK Data 9.6 Kbits/s
BR1
BR0
RX
The ASK_NFSK pin allows the microcontroller to rapidly switch the RF front end between
demodulation modes. A logic 1 on this pin selects ASK mode, and a logic 0 FSK mode. The time
to change modes (T
rate range) and is given in
that require an ASK preamble followed by FSK data (for typical TPM applications). During
T
Startup_Sig_Proc
Data valid BR0
, the level on pin DATA_OUT is low.
Startup_Sig_Proc
Table 5-4 on page
T
Startup_Sig_Proc
) depends on the bit rate range being selected (not current bit
ATA5745/ATA5746 [Preliminary]
22. This response time is specified for applications
Data valid BR3
25

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