ADN2817ACPZ(RevG) 查看數據表（PDF） - Analog Devices
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ADN2817ACPZ Datasheet PDF : 38 Pages
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Data Sheet
ADN2817/ADN2818
Table 8. Internal Register Map1
Reg Name
R/W Addr
FREQ0
R
0x00
FREQ1
R
0x01
FREQ2
R
0x02
Rate
R
0x03
MISC
R
0x04
CTRLA
CTRLA_RD
CTRLB
CTRLB_RD
CTRLC
CTRLD
W 0x08
R
0x05
W 0x09
R
0x06
W 0x11
W 0x22
CTRLE/BERCTLB2 W 0x1F
SEL_MODE
W 0x34
HI_CODE
LO_CODE
CODE_LSB
BERCTLA
BERSTS
W 0x35
W 0x36
W 0x39
W 0x1E
R
0x20
BER_RES
BER_DAC
Phase
R
0x21
R
0x24
W 0x37
D7
D6
D5
D4 D3
D2
D1
D0
MSB
LSB
MSB
LSB
0
MSB
LSB
COARSE_RD[8:1]
X
X
LOS status Static LOL status Data rate
X
LOL
measurement
complete
COARSE_RD[0]
(LSB)
fREF range
Data rate/DIV_FREF ratio
Measure
data rate
Lock to REFCLK
Readback CTRLA
Config Reset
LOL
MISC[4]
Initiate freq 0
acquisition
Reset
0
MISC[2]
0
0
Readback CTRLB
0
0
0
0
0
Config LOS Squelch
0
mode
CDR
Disable
Disable
0
bypass DATAOUT CLKOUT
buffer
buffer
Initiate
PRBS
sequence
PRBS mode
0
0
Enable
BERMON
BER 0
stdby
mode
PRBS/DDR enable and output mode
0
0
0
0
Limited 0
rate mode
CLK
0
holdover
mode
HI_CODE[8:1]
LO_CODE[8:1]
0
0
0
0
0
0
HI_CODE[0] LO_CODE[0]
(LSB)
(LSB)
BER timer (NUMBITS)
0
BER start Error count byte select, for example, 011 = Byte 3
pulse
of 5 (NUMERRORS[39:0])
X
X
X
X
X
X
X
End of BER
measurement
(EOBM)
BER_RES[7:0], one byte of pseudo BER measurement result (NUMERRORS[39:0])
X
X
BER_DAC[5:0], input to BER DAC in analog BERMON mode
0
0
Phase[5:0], twos complement sample phase adjustment,
phase code range is from −30 decimal to +30 decimal,
which gives a sampling phase offset range from −0.5 UI to +0.5 UI;
for example, phase = 111010 is−6 decimal,
which gives a sampling phase offset of −6/+60 = −0.1 UI
1 X = don’t care.
2 Both CTRLE and BERCTLB registers are used, depending on the application.
Table 9. Miscellaneous Register, MISC
LOS Status
Static LOL
LOL Status Data Rate Measurement Complete
COARSE_RD[0] (LSB)
D7 D6 D5
D4
D3
D2
D1 D0
X X 0 = no loss of signal 0 = waiting for next LOL 0 = locked 0 = measuring data rate
X COARSE_RD[0]
1 = loss of signal 1 = static LOL until reset 1 = acquiring 1 = measurement complete
Rev. G | Page 15 of 38
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