ATA5760_08 Datasheet, PDF (30/41 Pages) ATMEL Corporation – UHF ASK/FSK Receiver

Figure 14-1. Application Circuit: f_RF = 868.3 MHz without SAW Filter
VS
C7
4.7u
10%
GND
C14
39n 5%
C13
10n
10%
R2
56k to 150k
1 _SENS
2 _{IC_ACTIVE}
3 _CDEM
4 _AVCC
5 _TEST1
6 _AGND
DATA
POLLING/_ON
DGND
20
19
18
17
DATA_CLK
TEST4
16
DVCC ¹⁵
7 _n.c. ATA5760 _XTAL 14
8 _LNAREF
9 _{LNA_IN}
10 _LNAGND
n.c. 13
TEST3
TEST2
12
11
IC_ACTIVE
Sensitivity reduction
R3
>= 1.6k
V_X = 5 V to 20 V
DATA
POLLING/_ON
C12
10n
10%
Q1
C11 12p
2% np0
DATA_CLK
6.77617 MHz for B_IF = 600 kHz
6.77587 MHz for B_IF = 300 kHz
RF_IN
C17
1.5p
±0.1p
np0
C16
18p
5%
np0
Toko LL1608-FS4N7S
4.7nH, ±0.3nH
Figure 14-2. Application Circuit: f_RF = 868.3 MHz with SAW Filter
VS
C7
4.7µ
10%
GND
R2
56k to 150k
RF_IN
C14
39n 5%
C13
10n
10%
1 _SENS
2 _{IC_ACTIVE}
3 _CDEM
4 _AVCC
5 _TEST1
6 _AGND
DATA
20
19
POLLING/_ON
DGND
DATA_CLK
18
17
16
TEST4
DVCC ¹⁵
7 ATA5760
NC
XTAL ¹⁴
8 _LNAREF
9 _{LNA_IN}
10 _LNAGND
NC ¹³
TEST3 ¹²
TEST2 ¹¹
C16
C17
18p
5%
np0
5.6p
±0.1p
np0
Toko LL1608-FS4N7S
4.7nH,
Toko LL1608-FS12NJ
±0.3nH
12 nH, 5%
C2
3.3p
±0.1p
EPCOS B3570
1
2
IN
IN_GND
OUT
OUT_GND
5
6
3
4
CASE_GND
CASE_GND
CASE_GND
CASE_GND
7
8
np0
IC_ACTIVE
Sensitivity reduction
V_X = 5 V to 20 V
R3
1.6k
DATA
POLLING/_ON
C12
10n
Q1
10%
C11 ^12p
2% np0
DATA_CLK
6.77617 MHz for B_IF = 600 kHz
6.77587 MHz for B_IF = 300 kHz
30 ATA5760/ATA5761
4896D–RKE–08/08