ATA5743P3-TGQY Atmel, ATA5743P3-TGQY Datasheet - Page 30

• Manufacturer Part Number: ATA5743P3-TGQY
• Description: IC RCVR ASK/FSK 300KHZ 20SOIC
• Manufacturer: Atmel

Specifications of ATA5743P3-TGQY

• Frequency: 300MHz ~ 450MHz
• Sensitivity: -110dBm
• Data Rate - Maximum: 10 kBaud
• Modulation Or Protocol: ASK, FSK
• Applications: RKE, Telemetering, Security Technology
• Current - Receiving: 7.5mA
• 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)
• Operating Frequency (max): 450000kHz
• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant

6.6.3
Figure 6-27. Application Circuit: f
30
ATA5743
Data Interface
COAX
GND
V
S
+
2.2 F
20%
C7
1.5 pF
5%
np0
C17
10 nF
10%
C6
This period is used if the connected microcontroller detected RM. If the receiver operates 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
be connected via the pull-up resistor R
The applicable pull-up resistor R
selected BR_range (see
maximum load capacity at pin DATA is given in the separate document “Application Note RKE
Design Kit (U2741B, U3741BM)”. The internal circuitry with respect to the pin DATA is similar in
ATA5743 and U3741BM.
Table 6-12.
C3
L2
25 nH
X7R
C13
5%
np0
X7R
15 pF
150 pF
33 nH
5%
10%
np0
5%
10 nF
RF
C14
C
C15
10%
= 433.92 MHz without SAW Filter
C16
33 nF
100 pF
5%
np0
C
L
L
Applicable R
100 pF
1 nF
10
1
2
3
4
5
6
7
8
9
SENS
IC_ACTIVE POLLING /_ON
CDEM
AVCC
TEST
AGND
MIXVCC
LNAGND
LNA_IN
NC
Figure 6-26 on page
56 k
ATA5743
Table
pup
10nF
10%
X7R
C12
10%
R2
to 150 k
DATA_CLK
6-12). More detailed information about the calculation of the
LFGND
LFVCC
DGND
MODE
DVCC
DATA
pup
XTO
LF
depends on the load capacity C
pup
20
19
18
17
16
15
14
13
12
11
up to 20 V and is short-circuit protected.
X7R
R1
BR_range
29) is designed for automotive requirements. It can
V = 5 V to 20 V
C9
4.7 nF
5%
820
5%
B0
B1
B2
B3
B0
B1
B2
B3
X
6.7643
MHz
Q1
X7R
np0
C8 150 pF
np0
5%
R3
C11
1.6 k
10%
12 pF
C10
1 nF
5%
IC_ACTIVE
Sensitivity reduction
DATA
POLLING/_ON
DATA_CLK
L
Applicable R
1.6 k to 470 k
1.6 k to 220 k
1.6 k to 120 k
1.6 k to 5.6 k
1.6 k to 47 k
1.6 k to 22 k
1.6 k to 12 k
1.6 k to 56 k
at pin DATA and the
4839B–RKE–08/05
pup