ATA5761 ATMEL Corporation, ATA5761 Datasheet - Page 19

• Manufacturer Part Number: ATA5761
• Description: UHF Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

4896D–RKE–08/08
Figure 9-1.
Figure 9-2.
Figure 9-3.
Dem_out
Data_out (DATA)
DATA_CLK
Dem_out
Data_out (DATA)
DATA_CLK
Dem_out
Data_out (DATA)
DATA_CLK
Timing Diagram of the Data Clock
Data Clock Disappears Because of a Timing Error
Data Clock Disappears Because of a Logical Error
'1'
'1'
'1'
Receiving mode,
data clock control
logic active
Bit check ok
Bit-check mode
Timing error
'1'
'1'
'1'
Receiving mode,
data clock control
logic active
'1'
'1'
'1'
T
ee
Preburst
'1'
T
'1'
'0'
ee
< T
Lim_min
T
'1'
'1'
'1'
2T
OR t
Start bit
Data
Data
'0'
'1'
Lim_max
'0'
Logical error (Manchester code violation)
Receiving mode,
bit check active
ATA5760/ATA5761
< T
data clock control logic active
'1'
'1'
'?'
Lim_min_2T
Receiving mode,
'1'
'1'
'0'
or T
t
Delay
ee
Data
> T
'0'
'0'
'0'
Receiving mode,
bit check aktive
Lim_max_2T
'1'
'1'
'1'
)
t
P_Data_Clk
'0'
'0'
'0'
19