ATA5423 ATMEL Corporation, ATA5423 Datasheet - Page 61

• Manufacturer Part Number: ATA5423
• Manufacturer: ATMEL Corporation

Figure 9-10. Bit Error (TMODE = 0)
9.1.8
Table 9-3.
4841A–RKE–02/05
(12.73193)
(13.94447)
(13.25311)
(13.41191)
(14.13324)
f
RF
433.92
868.3
MHz
315
345
915
(f
XTAL
)/
Recommended Lim_min and Lim_max for Maximum Sensitivity
Demod_Out
Lim_max = 38 (744 µs)
Lim_max = 38 (715 µs)
Lim_max = 38 (706 µs)
Lim_min = 13 (261 µs)
Lim_min = 13 (251 µs)
Lim_min = 13 (248 µs)
Recommended Lim_min and Lim_max Values for Different Baud Rates
BR_Range_0
1.0 kBaud
XLim = 1
TBD
TBD
Table 9-2.
The sensitivity measurements in the section “Low–IF Receiver” in
Table 3-4 on page 12
9-3. These values are optimized for maximum sensitivity. Note that since these limits are opti-
mized for sensitivity, the number of checked bits, N
circuit from waking up to often in polling mode due to noise.
Byte n-1
Mode
RX
Lim_max = 34 (332 µs)
Lim_max = 34 (319 µs)
Lim_max = 34 (315 µs)
Receiving mode
Lim_min = 12 (121 µs)
Lim_min = 12 (116 µs)
Lim_min = 12 (115 µs)
ASK/_NFSK
Byte n
BR_Range_0
2.4 kBaud
XLim = 0
RX Modulation Scheme
0
1
TBD
TBD
have been done with the Lim_min and Lim_max values according to
Bit error
Byte n+1
T_MODE
Lim_max = 32 (156 µs)
Lim_max = 32 (150 µs)
Lim_max = 32 (148 µs)
0
0
1
1
0
0
1
1
Lim_min = 11 (55 µs)
Lim_min = 11 (53 µs)
Lim_min = 11 (52 µs)
Start-up mode
BR_Range_1
ATA5423/25/28/29 [Preliminary]
XLim = 0
5 kBaud
TBD
TBD
f
f
ASK
ASK
f
f
FSK_L
FSK_H
Bit-check mode
Bit check ok
off
on
f
f
f
ASK
ASK
f
RF
FSK_H
FSK_L
Preburst
IN
on
off
f
f
f
f
FSK_H
ASK
ASK
FSK_L
Bit–check
Lim_max = 32 (78 µs)
Lim_max = 32 (75 µs)
Lim_max = 32 (74 µs)
Lim_min = 11 (28 µs)
Lim_min = 11 (27 µs)
Lim_min = 11 (26 µs)
on
off
BR_Range_2
10 kBbaud
XLim = 0
, has to be at least 6 to prevent the
TBD
TBD
Bit in TX/RX Data
Receiving mode
Buffer
Byte 1
–
–
–
–
1
0
1
0
Table 3-3 on page 12
Lim_max = 31 (38 µs)
Lim_max = 32 (37 µs)
Lim_max = 32 (37 µs)
Lim_min = 11 (14 µs)
Lim_min = 11 (13 µs)
Lim_min = 11 (13 µs)
BR_Range_3
20 kBaud
XLim = 0
Level on Pin
SD0_TMDO
TBD
TBD
X
X
X
X
1
0
1
0
Table
and
61