ATA5744N-TKSY Atmel, ATA5744N-TKSY Datasheet - Page 5

• Manufacturer Part Number: ATA5744N-TKSY
• Description: IC RCVR UHF ASK 433MHZ 20SSOP
• Manufacturer: Atmel

Specifications of ATA5744N-TKSY

• Frequency: 300MHz ~ 450MHz
• Sensitivity: -112dBm
• Data Rate - Maximum: 10 kBaud
• Modulation Or Protocol: ASK, FSK
• Applications: RKE, Telemetering, Security Technology
• Current - Receiving: 7.1mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SOIC (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -

Table 3-1.
Figure 3-2.
4893A–RKE–11/05
Conditions
f
f
300 MHz < f
365 MHz < f
RF
RF
= 315 MHz, MODE = 0
= 433.92 MHz, MODE = 1
RF
f
RF
IN
= 433.92 MHz
RF
RF
8.2p
Calculation of LO and IF Frequency
Input Matching Network with SAW Filter
< 365 MHz, MODE = 0
< 450 MHz, MODE = 1
C2
22p
C3
TOKO LL2012
F33NJ
33n
L2
Figure 3-2
using a SAW.
input matching networks shown in
parameters given in the electrical characteristics.
L
25n
1
2
IN
IN_GND
8
9
C16
100p
CASE_GND
LNAGND
LNA_IN
shows a typical input matching network for f
ATA5744
3, 4 7, 8
B3555
27n
L3
Figure 3-3 on page 6
Local Oscillator Frequency
f
f
LO
LO
f
f
OUT_GND
LO
LO
TOKO LL2012
= 314 MHz
= 432.92 MHz
F27NJ
=
C17
8.2p
=
OUT
--------------------------- -
1
-------------------
1
+
+
f
RF
5
6
f
----------------- -
432.92
--------- -
314
RF
1
1
Figure 3-3 on page 6
RF
illustrates the input matching to 50 without a SAW. The
IN
f
RF
= 315 MHz
10p
C2
47p
C3
TOKO LL2012
F82NJ
82n
L2
Intermediate Frequency
f
f
L
25n
IF
IF
2
1
RF
= 1 MHz
= 1 MHz
f
are the reference networks for the
IF
IN
IN_GND
f
= 315 MHz and f
IF
=
=
----------------- -
432.92
8
9
C16
100p
--------- -
314
f
f
CASE_GND
LO
LO
ATA5744
LNAGND
LNA_IN
3, 4 7, 8
B3551
47n
L3
TOKO LL2012
OUT_GND
F47NJ
C17
22p
RF
OUT
ATA5744
= 433.92 MHz
5
6
5