ata5724p3c-tkqy ATMEL Corporation, ata5724p3c-tkqy Datasheet - Page 32

• Manufacturer Part Number: ata5724p3c-tkqy
• Description: Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

14. Data Interface
Figure 14-1. Application Circuit: f
32
Atmel ATA5723C/ATA5724C/ATA5728C
RF_IN
GND
VS
C16
+
C7
4.7µF
10%
C17
The data interface (see
can be connected using the pull-up resistor R
The applicable pull-up resistor R
selected BR_range (see
Table 14-1.
Note:
Table 14-2.
L1
RF Frequency
C13
10 nF
10%
C
39nF
C14
5%
C
L
RF
433.92
L
(MHz)
868.3
315
For 315MHz application pin MODE must be connected to GND.
100pF
-
= 315MHz
1nF
10
Applicable R
Input Matching to 50
1
2
3
4
5
6
7
8
9
SENS
IC_ACTIVE
CDEM
AVCC
TEST1
RSSI
AGND
LNAREF
LNA_IN
LNAGND
(1)
, 433.92MHz or without SAW Filter
56k to 150k
Not connected
Not connected
ATA5723C
ATA5724C
ATA5728C
C16 (pF)
Figure 13-2 on page
Table
R2
POLLING/_ON
pup
1
DATA_CLK
BR_range
14-1).
TEST3
TEST2
MODE
DGND
XTAL2
XTAL1
DVCC
DATA
pup
B0
B1
B2
B3
B0
B1
B2
B3
20
19
18
17
16
15
14
13
12
11
depends on the load capacity C
LNA Matching
C17 (pF)
pup
crystal
30) is designed for automotive requirements. It
3
3
3
F
C12
10nF
10%
up to 20V and is short-circuit-protected.
1.6k
CL2
CL1
R3
V
X
= 5V to 20V
L1 (nH)
6.8
39
20
Applicable R
1.6k to 470k
1.6k to 220k
1.6k to 120k
1.6k to 5.6k
1.6k to 47k
1.6k to 22k
1.6k to 12k
1.6k to 56k
RSSI
IC_ACTIVE
Sensitivity reduction
DATA
POLLING/_ON
DATA_CLK
L
at pin DATA and the
Crystal Frequency
pup
f
9248A–RKE–09/11
XTAL
14.71875
13.52875
13.55234
(MHz)