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MICRF219 数据表(PDF) 10 Page - Micrel Semiconductor

部件名 MICRF219
功能描述  300MHz to 450MHz ASK Receiver with RSSI, Auto-Poll, Bit-Check and Squelch
PDF  24 Pages
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制造商  MICREL [Micrel Semiconductor]
网页  http://www.micrel.com
标志 MICREL - Micrel Semiconductor

MICRF219 数据表(HTML) 10 Page - Micrel Semiconductor

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Micrel
MICRF219
January 2009
10
M9999-011509
(408) 944-0800
ram
que
the
unte
the device will wake up once sufficient pulses have
ulse
rther sleep
timeout period.
or less out of eight bit
t is squelched. If good
unt increases to seven or more in any eight
sequential bits, squelch is disabled allowing data to
u
erfa
R
amm
trol Register Indiv
Tables:
D0
D1
E: Desense
Operation
Received pulse edges trigger a prog
window timer clocked by the reference fre
the next pulse edge falls within this window
flagged as bad. Detected good bits are co
mable
ncy. If
bit is
d and
Squelch
During normal operation, if four
pulses are good, the DO outpu
bit co
been received. Two bad pulses or a lack of p
cause the device to go to sleep for a fu
s will
o tput at DO pin.
Serial Int
ce egister Progr
ing
Con
idual Truth
D2
MOD
0
X
X
No Desense - default
1
0
0
6dB Desense
1
nse
1
0
16dB Dese
1
0
1
30dB Desense
1
1
1
42dB Desense
ODE:
andwidth (at 433.92MHz)
D3
D4
M
Demod B
0
0
1625Hz
1
0
3250Hz
0
1
6500Hz
1
1
ault
13000Hz
- def
D5
D6
MODE
1
0
el 30%
Slice Lev
0
1
0%
Slice Level 4
1
1
Slice Level 50%
- default
0
0
Slice Level 60%
D7
D8
MODE: Bit-Check Setting
0
0
Bit-check 0 bits
- default
1
0
Bit-check 2 bits
0
1
Bit-check 4 bits
1
1
Bit-check 8 bits
D
:
eck Window Times (315
9
D10
D11
MODE
Bit-Ch
MHz)
Set D3 to
D3=1
D3=0
D3=1
D3=0
Set D4 to
D4=1
D4=1
D4=0
D4=0
0
196us, 393us, 785us
0
0
98us,
1
183us, 367us, 733us
0
0
92us,
0
us, 341us, 681us
1
0
85us, 170
1
0
79us, 157us, 314us, 629us
1
0
s, 144us, 288us, 577us
0
1
72u
1
131us, 262us, 525us
0
1
66us,
0
118us, 236us, 473us
1
1
59us,
1
105us, 210us, 420us
1
1
53us,
D
:
eck Window Times
92MHz)
9
D10
D11
MODE
Bit-Ch
(433.
Set D3 to
D3=1
D3=0
D3=1
D3=0
Set D4 to
D4=1
D4=1
D4=0
D4=0
0
0
0
71us, 143us, 285us, 570us
1
0
0
67us, 133us, 266us, 532us
0
62us, 124us, 247us, 494us
1
0
1
us, 114us, 228us, 457us
1
0
57
0
0
us, 209us, 419us
1
52us, 105
1
0
48us, 95us, 190us, 381us
1
0
1
us, 86us, 172us, 343us
1
43
1
1
38us, 76us, 152us, 305us
1
Defaul
tate
0, D11 is 111
D13
D14
MODE:
Sleep Time
t S
D9, D1
D12
0
0
0
10ms
1
0
0
20ms
0
1
0
40ms Default
1
1
0
80ms
0
0
1
160ms
1
0
1
320ms
0
1
1
640ms
1
1
1
1280ms
D15
MODE: Auto-Poll
0
Awake – does not poll - default
1
Auto-polls with Sleep periods



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