u3742bm ATMEL Corporation, u3742bm Datasheet - Page 15

• Manufacturer Part Number: u3742bm
• Description: Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

Figure 14. Timing Diagram for Complete Successful Bit Check
Figure 15. Timing Diagram During Bit Check
Figure 16. Timing Diagram for Failed Bit Check (Condition: CV_Lim < Lim_min)
4735A–RKE–11/03
(Lim_min = 14, Lim_max = 24)
Bit check
Dem_out
Bit check counter
Enable IC
Bit check
Enable IC
Dem_out
Bit check counter
(Lim_min = 14, Lim_max = 24)
Enable IC
Bit check
Dem_out
DATA
(Number of checked bits: 3)
Startup mode
Startup mode
T
Startup
0
0
1
1
2 3 4 5 6
2 3 4 5 6
1/2 Bit
T
XCLK
7 8 1
1
2
Bit check mode
1/2 Bit
3
Bit check mode
2
4 5
3
4 5
1/2 Bit
6 7 8 9
1/2 Bit
6 7 8 9
Bit check failed (CV_Lim < Lim_min)
1/2 Bit
10
Bit check ok
1/2 Bit
1112
10
11121314
1/2 Bit
151617 18 1 2 3 4 5 6
Bit check ok
1/2 Bit
Sleep mode
0
Receiving mode
7 8 9 1011121314 15 1 2 3 4
1/2 Bit
U3742BM
Bit check ok
1/2 Bit
15