T5743 ATMEL Corporation, T5743 Datasheet - Page 26

• Manufacturer Part Number: T5743
• Description: UHF ASK/FSK Receiver
• Manufacturer: ATMEL Corporation

Table 11. Effect of the Configuration Word Lim_min
Note:
Table 12. Effect of the Configuration Word Lim_max
Note:
Conservation of the Register
Information
26
Lim_max5
Lim_min5
...
...
...
...
0
0
0
0
1
1
1
0
0
0
1
1
1
1
1. Lim_min is also be used to determine the margins of the data clock control logic (see section “Data Clock”).
1. Lim_max is also be used to determine the margins of the data clock control logic (see section “Data Clock”).
T5743
Lim_min4
Lim_max4
Lim_min
Lim_max
...
...
0
0
0
1
1
1
1
...
...
0
0
0
0
1
1
1
(1)
(1)
Lim_min3
Lim_max3
(Lim_min < 10 Is Not Applicable)
(Lim_max < 12 Is Not Applicable)
...
...
1
1
1
0
1
1
1
...
...
1
1
1
1
1
1
1
The T5743 implies an integrated power-on reset and brown-out detection circuitry to
provide a mechanism to preserve the RAM register information.
According to Figure 32, a power-on reset (POR) is generated if the supply voltage V
drops below the threshold voltage V
the configuration registers in that condition. Once V
celled after the minimum reset period t
voltage of the receiver is turned on.
To indicate that condition, the receiver displays a reset marker (RM) at Pin DATA after a
reset. The RM is represented by the fixed frequency f
cancelled via a Low pulse t1 at Pin DATA.
Lim_min2
Lim_max2
...
...
0
0
1
1
1
1
1
...
...
1
1
1
0
1
1
1
Lim_min1
Lim_max1
...
...
1
1
0
0
0
1
1
...
...
0
0
1
0
0
1
1
Lim_min0
Lim_max0
...
...
0
1
0
1
1
0
1
...
...
0
1
0
1
1
0
1
ThReset
Rst
USA: T
. The default parameters are programmed into
. A POR is also generated when the supply
(T
Lim_min
Lim_max
Lower Limit Value for Bit Check
(T
Upper Limit Value for Bit Check
Lim_min
S
Europe: T
RM
= 342 µs, Europe: T
exceeds V
USA: T
= (Lim_max - 1) × XLim × T
at a 50% duty-cycle. RM can be
= Lim_min × Lim × T
21 (default)
41 (default)
Lim_max
Lim_max
10
11
12
61
62
63
12
13
14
61
62
63
ThReset
= 652 m s,
= 662 µs)
the POR is can-
Lim_min
4569A–RKE–12/02
Clk
= 348 µs)
)
Clk
)
S