參數(shù)資料
型號(hào): 8213AM
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁(yè)數(shù): 22/33頁(yè)
文件大?。?/td> 171K
代理商: 8213AM
SM8213AM
NIPPON PRECISION CIRCUITS—22
Bit 11
CLKO clock output enable flag.
When 0, output is enabled.
When 1, output is disabled.
If CLKO clock output is not used, it can be useful in
preventing unwanted noise generation.
Bits 12 to 13
Receive bit rate set flags.
Bit 14
NRZ input signal polarity select flag.
When 0, normal logic is selected.
When 1, inverse logic is selected.
Bits 15 to 20
BS3 (PLL setup signal) setup time set flags.
“M” represents the value of PL5 (MSB) to PL0
(LSB) and is used to control the receive timing setup
time before BS3 rising edge. The setup time is
1.953M ms (0.833M ms) [0.417M ms]. The valid
values are from 2 to 62 (61 steps). Note that 3F
H
is
an invalid setting.
Bits 21 to 26
BS1 (RF control main output signal) setup time set
flags.
“N” represents the value of RF5 (MSB) to RF0
(LSB) and is used to control the receive timing setup
time before BS3 rising edge. The setup time is
1.953N ms (0.833N ms) [0.417N ms]. The valid val-
ues are from 2 to 62 (61 steps). Note that 3E
H
and
3F
H
are invalid settings.
Note also that the setup times should be set such that
(BS3 rising-edge setup time) > (BS1 rising-edge
setup time).
Bit 27
NRZ signal input noise canceller filter ON/OFF flag.
When 0, filter is OFF.
When 1, filter is ON.
Bits 28 to 29
These bits set the noise canceller filter on-state
(strength) when the filter is turned ON using bit 27.
Bits 30 to 32
Preamble mode rate error detection condition set
flags.
In preamble mode, under worst-case reception con-
ditions, a single standard is used when distinguishing
between noise and preamble to detect rate errors.
These flags determine the rate error detection stan-
dard. The error counter value (number of permissible
rate errors) can be selected from the range 1 to 8.
BRS1
BRS0
Reception bit rate
0
0
512 bps
0
1
1200 bps
1
0
2400 bps
1
1
Can't accept
FILTER 1
FILTER 0
Filter strength
1
1. Filter ON-state strength: 1 < 2 < 3 < 4
0
0
Filter strength 1
0
1
Filter strength 2
1
0
Filter strength 3
1
1
Filter strength 4
ER 2
ER 1
ER 0
Threshold
0
0
0
Count = 1
0
0
1
Count = 2
0
1
0
Count = 3
0
1
1
Count = 4
1
0
0
Count = 5
1
0
1
Count = 6
1
1
0
Count = 7
1
1
1
Count = 8
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