T5743P3-TGS Atmel, T5743P3-TGS Datasheet - Page 29

• Manufacturer Part Number: T5743P3-TGS
• Description: IC RCVR ASK/FSK 300MHZ 20-SOIC
• Manufacturer: Atmel

Specifications of T5743P3-TGS

• 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: -

Data Interface
Figure 35. Application Circuit: f
4569A–RKE–12/02
COAX
VS
GND
C7
2.2u
10%
C6
10n
10%
C17
3.3p
5%
np0
RF
15p
5%
np0
Programming respectively OFF-command is initiated in any case. The registers
OPMODE and LIMIT are set to the default values. RM is cancelled if present.
This period is used if the connected microcontroller detected RM. If the receiver oper-
ates in default mode, this time period for t1 can generally be used.
Note that the capacitive load at Pin DATA is limited.
The data interface (see Figure 34) is designed for automotive requirements. It can be
connected via the pull-up resistor R
The applicable pull-up resistor R
the selected BR_range (see Table 13). More detailed information about the calculation
of the maximum load capacity at Pin DATA is given in the “Application Hints U3743BM”.
Table 13. Applicable R
= 433.92 MHz without SAW Filter
C3
L2 TOKO LL2012 F22NJ
22n
5%
C13
10n
10%
C14
C16
33n 5%
100p
5%
150p
10%
C15
np0
C
1
2
3
4
5
6
7
8
9
10
C
L
L
£ 100 pF
£ 1 nF
SENS
IC_ACTIVE
CDEM
AVCC
TEST
AGND
MIXVCC
LNAGND
LNA_IN
NC
T5743
56k to 150k
POLLING/_ON 19
C12
R2
10n
10%
DATA_CLK 17
pup
LFGND 13
LFVCC 11
DGND 18
MODE 16
DVCC 15
DATA 20
XTO 14
LF 12
pup
pup
depends on the load capacity C
6.7643MHz
R1
820
5%
C9
4.7n
5%
Q1
up to 20 V and is short-circuit-protected.
BR_range
B0
B1
B2
B3
B0
B1
B2
B3
C11
C10
1n
5%
C8
150p
10%
2%
12p
np0
>= 1.6k
R3
V X = 5 V to 20 V
1.6 k W to 470 k W
1.6 k W to 220 k W
1.6 k W to 120 k W
IC_ACTIVE
Sensitivity reduction
Applicable R
1.6 k W to 5.6 k W
DATA
POLLING/_ON
DATA_CLK
1.6 k W to 47 k W
1.6 k W to 22 k W
1.6 k W to 12 k W
1.6 k W to 56 k W
L
at Pin DATA and
T5743
pup
29