T5743P3-TGQ Atmel, T5743P3-TGQ Datasheet - Page 21
![IC RCVR ASK/FSK 300MHZ 20-SOIC](/photos/6/80/68042/453-20-soic_sml.jpg)
T5743P3-TGQ
Manufacturer Part Number
T5743P3-TGQ
Description
IC RCVR ASK/FSK 300MHZ 20-SOIC
Manufacturer
Atmel
Datasheet
1.T5743P6-TGQ.pdf
(41 pages)
Specifications of T5743P3-TGQ
Frequency
300MHz ~ 450MHz
Sensitivity
-108dBm
Data Rate - Maximum
10 kBaud
Modulation Or Protocol
ASK, FSK
Applications
General Purpose Data Transmission Systems
Current - Receiving
30mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 105°C
Package / Case
20-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-
Memory Size
-
Other names
T5743P3-TGQTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
T5743P3-TGQ
Manufacturer:
PH
Quantity:
3 892
Digital Noise
Suppression
Automatic Noise Suppression
(see Figure 29)
4569A–RKE–12/02
Figure 26. Timing Characteristic of the Data Clock (Rising Edge on Pin DATA)
Figure 27. Timing Characteristic of the Data Clock (Falling Edge of the Pin DATA)
After a data transmission, digital noise appears on the data output (see Figure 28). To
prevent that digital noise keeps the connected microcontroller busy, it can be sup-
pressed in two different ways.
If the bit Noise_Disable (Table 10) in the OPMODE register is set to 1 (default), the
receiver changes to bit-check mode at the end of a valid data stream. The digital noise
is suppressed and the level at Pin DATA is High in that case. The receiver changes
back to receiving mode, if the bit check was successful.
This way to suppress the noise is recommended if the data stream is Manchester or Bi-
phase coded and is active after power on.
Figure 30 illustrates the behavior of the data output at the end of a data stream. Note
that if the last period of the data stream is a high period (rising edge to falling edge), a
pulse occurs on Pin DATA. The length of the pulse depends on the selected baud-rate
range.
Serial bi-directional
data line
Data_In
DATA_CLK
Data_Out
Data_Out
Serial bi-directional
data line
Data_In
DATA_CLK
V
V
Il
Ih
= 0,65 * V S
= 0,35 * V S
V
X
t
Delay1
t
t
Delay
Delay1
t
Delay
t
Delay2
t
P_Data_Clk
t
Delay2
t
P_Data_Clk
V
V
V
X
Ih
Il
= 0,35 * V S
= 0,65 * V S
T5743
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