ATA5811-PLQX Atmel, ATA5811-PLQX Datasheet - Page 57

• Manufacturer Part Number: ATA5811-PLQX
• Manufacturer: Atmel

Specifications of ATA5811-PLQX

• Operating Temperature (min): -40C
• Operating Temperature (max): 105C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 7mm
• Product Height (mm): 0.9mm
• Product Length (mm): 7mm
• Lead Free Status / Rohs Status: Compliant

Figure 49. Bit Error (TMODE = 0)
Recommended Lim_min and
Lim_max for Maximum
Sensitivity
Table 39. Recommended Lim_min and Lim_max Values for Different Baud Rates
4689B–RKE–04/04
f
MHz
315.0
(12.73193)
433.92
(13.25311)
868.3
(13.41191)
RF
(f
XTAL
)/
1.0 kBaud
BR_Range_0/XLim = 1
Lim_min = 13 (261 µs)
Lim_max = 38 (744 µs)
Lim_min = 13 (251 µs)
Lim_max = 38 (715 µs)
Lim_min = 13 (248 µs)
Lim_max = 38 (706 µs)
Demod_Out
Byte n-1
2.4 kBaud
BR_Range_0/XLim = 0
Lim_min = 12 (121 µs)
Lim_max = 34 (332 µs)
Lim_min = 12 (116 µs)
Lim_max = 34 (319 µs)
Lim_min = 12 (115 µs)
Lim_max = 34 (315 µs)
Receiving mode
Table 38. RX Modulation Scheme
The sensitivity measurement in the section “Low-IF Receiver” in Table 3 on page 11 and
Table 4 on page 11 have been done with the Lim_min and Lim_max values according to
Table 39. These values are optimized for maximum sensitivity. Note that since these
Limits are optimized for sensitivity the number of checked bit N
6 to prevent the circuit from waking up to a often in polling mode due to noise.
Mode
RX
Byte n
ASK/_NFSK
Bit error
Byte n+1
0
1
5 kBaud
BR_Range_1/XLim = 0
Lim_min = 11 (55 µs)
Lim_max = 32 (156 µs)
Lim_min = 11 (53 µs)
Lim_max = 32 (150 µs)
Lim_min = 11 (52 µs)
Lim_max = 32 (148 µs)
Start-up mode
T_MODE
ATA5811/ATA5812 [Preliminary]
0
0
1
1
0
0
1
1
Bit-check mode
f
f
ASK
ASK
f
f
FSK_L
FSK_H
Preburst
Bit check ok
off
on
f
f
f
ASK
ASK
f
RF
FSK_H
FSK_L
10 Kbaud
BR_Range_2/XLim = 0
Lim_min = 11 (28 µs)
Lim_max = 32 (78 µs)
Lim_min = 11 (27 µs)
Lim_max = 32 (75 µs)
Lim_min = 11 (26 µs)
Lim_max = 32 (74 µs)
IN
on
off
f
f
f
f
FSK_H
ASK
ASK
FSK_L
on
off
Receiving mode
Bit in TX/RX
Data Buffer
Byte 1
1
0
1
0
-
-
-
-
Bit-check
20 kBaud
BR_Range_3/XLim = 0
Lim_min = 11 (14 µs)
Lim_max = 31 (38 µs)
Lim_min = 11 (13 µs)
Lim_max = 32 (37 µs)
Lim_min = 11 (13 µs)
Lim_max = 32 (37 µs)
has to be at least
Level on Pin
SD0_TMDO
Z
Z
1
0
Z
Z
1
0
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