IC RCVR UHF ASK 433MHZ 20SSOP

ATA5744N-TKSY

Manufacturer Part NumberATA5744N-TKSY
DescriptionIC RCVR UHF ASK 433MHZ 20SSOP
ManufacturerAtmel
ATA5744N-TKSY datasheet
 

Specifications of ATA5744N-TKSY

Frequency300MHz ~ 450MHzSensitivity-112dBm
Data Rate - Maximum10 kBaudModulation Or ProtocolASK, FSK
ApplicationsRKE, Telemetering, Security TechnologyCurrent - Receiving7.1mA
Data InterfacePCB, Surface MountAntenna ConnectorPCB, Surface Mount
FeaturesRSSI EquippedVoltage - Supply4.5 V ~ 5.5 V
Operating Temperature-40°C ~ 105°CPackage / Case20-SOIC (0.200", 5.30mm Width)
Lead Free Status / RoHS StatusLead free / RoHS CompliantMemory Size-
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5. Pin ENABLE
Via the pin ENABLE the operating mode of the receiver can be selected (see
ure
5-2).
If the pin ENABLE is held to Low, the receiver remains in sleep mode. All circuits for signal pro-
cessing are disabled and only the XTO is running in that case. The current consumption is
I
= I
in that case. During the sleep mode the receiver is not sensitive to a transmitter signal.
S
Soff
To activate the receiver, the pin ENABLE must be held to High. During the start-up period,
T
, all signal processing circuits are enabled and settled. The duration of the start-up period
Startup
depends on the selected baud-rate range (BR_Range).
After the start-up period, all circuits are in a stable condition and the receiver is in the receiving
mode.
In receiving mode, the internal data signal (Dem_out) is switched to pin DATA. To avoid incor-
rect timing at the begin of the data stream, the begin is synchronized to a falling edge of the
incoming data signal. The receiver stays in the receiving mode until it is switched back to sleep
mode via pin ENABLE.
During start-up and receiving mode, the current consumption is I
Figure 5-1.
Enable Timing (1)
Dem_out
ENABLE
DATA
Sleep mode
I
= I
S
Soff
Figure 5-2.
Enable Timing (2)
Dem_out
ENABLE
DATA
Sleep mode
I
= I
S
Soff
ATA5744
10
Start-up mode
Receiving mode
I
= I
S
Son
T
Start-up
Start-up mode
Receiving mode
I
= I
S
Son
T
Start-up
Figure 5-1
and
Fig-
= I
.
S
Son
t
ee_sig
I
= I
S
Son
t
ee_sig
I
= I
S
Son
4893A–RKE–11/05