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RFHCS362F датащи(PDF) 45 Page - Microchip Technology

номер детали RFHCS362F
подробное описание детали  KEELOQ짰 Code Hopping Encoder with UHF ASK/FSK Transmitter
PDF  54 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

RFHCS362F датащи(HTML) 45 Page - Microchip Technology

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© 2011 Microchip Technology Inc.
DS41189B-page 45
rfHCS362G/362F
FIGURE 10-3:
PWM FORMAT SUMMARY (MOD=0)
FIGURE 10-4:
PWM PREAMBLE/HEADER FORMAT (MOD=0)
TABLE 10-4:
CODE WORD TRANSMISSION TIMING PARAMETERS – PWM MODE(1,3)
VDD = +2.0V to 6.3V
Industrial
(I): TAMB = -40 °C to +85 °C
BSEL Value
11
10
01
00
Symbol
Characteristic
Typical
Typical
Typical
Typical
Units
TE
Basic pulse element
800
400
200
100
μs
TBP
Bit width
333
3
TE
TP
Preamble duration
31
31
31
31
TE
TH
Header duration(4)
10
10
10
10
TE
TC
Data duration
207
207
207
207
TE
TG
Guard time(2)
27.2
26.4
26
25.8
ms
—
Total transmit time
220
122
74
50
ms
—
Data Rate
417
833
1667
3334
bps
Note 1: The timing parameters are not tested but derived from the oscillator clock.
2: Assuming GUARD = 10 option selected in CONFIG_0 Configuration Word.
3: Allow for a +/- 10% tolerance on the encoder internal oscillator after calibration.
4: Assuming HEADER = 1 option selected in SEED_3 Configuration Word.
LOGIC "1"
Guard
Time
31 TE
Encrypted
Portion
Fixed Code
Portion
LOGIC "0"
Preamble
3/10
Header
TE
TE
TE
TE
1
16
TBP
50% Duty Cycle Preamble
P1
P16
31xTE
3 or 10xTE Header
Data Bits
Bit 0 Bit 1



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