ADN2813 데이터 시트보기 (PDF) - Analog Devices
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ADN2813 Datasheet PDF : 28 Pages
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Data Sheet
ADN2813
Table 6. Internal Register Map1
Reg.
Name R/W Address D7
D6
D5
FREQ0 R
0x0
MSB
FREQ1 R
0x1
MSB
FREQ2 R
0x2
0
MSB
RATE R
0x3
COARSE_RD[8] MSB
MISC R
0x4
x
x
LOS
Status
CTRLA W 0x8
CTRLB W 0x9
CTRLC W 0x11
FREF Range
Config. Reset
LOL
MISC[4]
0
0
System
Reset
0
D4
D3
D2
Coarse Data Rate Readback
Static LOL
LOL Status
Data Rate
Measure
Complete
Data Rate/DIV_FREF Ratio
0
Reset
MISC[2]
0
0
0
Config. LOS
1 All writeable registers default to 0x00.
D1
D0
LSB
LSB
LSB
COARSE_RD[1]
x
COARSE_RD[0] LSB
Measure
Data Rate
0
SQUELCH
Mode
Lock to
Reference
0
Output Boost
Table 7. Miscellaneous Register, MISC
LOS Status
D7 D6 D5
x x 0 = No loss of signal
1 = Loss of signal
Static LOL
D4
0 = Waiting for next LOL
1 = Static LOL until reset
LOL Status
D3
0 = Locked
1 = Acquiring
Data Rate Measurement
Complete
D2
0 = Measuring data rate
1 = Measurement complete
Coarse Rate
Readback LSB
D1 D0
x COARSE_RD[0]
Table 8. Control Register, CTRLA1
FREF Range
Data Rate/Div_FREF Ratio
D7 D6
D5 D4 D3 D2
0 0 10 MHz to 20 MHz
00001
0 1 20 MHz to 40 MHz
00012
1 0 40 MHz to 80 MHz
00104
1 1 80 MHz to 160 MHz
n
2n
1 0 0 0 256
Measure Data Rate
D1
Set to 1 to measure data rate
Lock to Reference
D0
0 = Lock to input data
1 = Lock to reference clock
1 Where DIV_FREF is the divided down reference referred to the 10 MHz to 20 MHz band (see the Reference Clock (Optional) section).
Table 9. Control Register, CTRLB
Config LOL
Reset MISC[4]
System Reset
Reset MISC[2]
D7
D6
D5
D4 D3
D2 D1 D0
0 = LOL pin normal operation
1 = LOL pin is static LOL
Write a 1 followed by Write a 1 followed by 0 Set Write a 1 followed by 0 Set Set Set
0 to reset MISC[4]
to reset ADN2813
to 0 to reset MISC[2]
to 0 to 0 to 0
Table 10. Control Register, CTRLC
D7
D6
D5
D4
Set to 0 Set to 0 Set to 0 Set to 0
D3
Set to 0
Config. LOS
D2
0 = Active high LOS
1 = Active low LOS
SQUELCH Mode
D1
0 = SQUELCH CLK and DATA
1 = SQUELCH CLK or DATA
Output Boost
D0
0 = Default output swing
1 = Boost output swing
Rev. C | Page 11 of 28
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