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ADRF6801 Datasheet(PDF) 18 Page - Analog Devices

Part # ADRF6801
Description  750 MHz to 1150 MHz Quadrature Demodulator with Fractional-N PLL and VCO
PDF  36 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADRF6801 Datasheet(HTML) 18 Page - Analog Devices

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ADRF6801
Rev. 0 | Page 18 of 36
CHARGE
PUMP
REF
PDF
PHASE
OFFSET
POLARITY
CP
CNTL
SRC
DB23
DB22
DB21
DB20
DB19
DB18
DB17
DB16
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
RMS2
RMS1
RMS0
RS1
RS0
CPM
CPBD
CPB4
CPB3 CPB2
CPB1
CPB0
CPP1
CPP0
CPS
CPC1
CPC0
PE1
PE0
PAB1
PAB0
C3(1)
C2(0)
C1(0)
CPC1 CPC0
00
01
10
11
CPS
0
1
CPP1 CPP0
00
01
10
11
CPB4 CPB3 CPB2 CPB1 CPB0
000
00
000
01
001
10
010
10
...
...
...
...
...
1111
1
CPBD
0
1
CPM
0
1
RS1
RS0
00
01
10
11
RMS2 RMS1
RMS0
00
0
00
1
01
0
01
1
10
0
10
1
11
0
11
1
10 × 22.5°/ICP, MULT (DEFAULT)
...
31 × 22.5°/ICP, MULT
PFD PHASE OFFSET MULTIPLIER
0 × 22.5°/ICP, MULT
1 × 22.5°/ICP, MULT
6 × 22.5°/ICP, MULT (RECOMMENDED)
BOTH ON
PUMP DOWN
PUMP UP
TRISTATE (DEFAULT)
OUPUT MUX
SOURCE
INPUT REF
PATH
SOURCE
PFD PHASE OFFSET
MULTIPLIER VALUE
CHARGE
PUMP
CURRENT
MULTIPLIER
CHARGE
PUMP
CONTROL
PFD EDGE
SENSITIVITY
CONTROL BITS
PFD ANTI-
BACKLASH
DELAY
PE0
0
1
REFERENCE PATH EDGE
SENSITIVITY
FALLING EDGE (RECOMMENDED)
RISING EDGE (DEFAULT)
PAB1 PAB0
00
01
10
11
PFD ANTIBACKLASH
DELAY
0ns (DEFAULT,
RECOMMENDED)
0.5ns
0.75ns
0.9ns
CHARGE PUMP
CONTROL
BUFFERED VERSION OF 0.5 × REFERENCE INPUT
CHARGE PUMP CONTROL SOURCE
CONTROL BASED ON STATE OF DB7/DB8 (CP CONTROL)
CONTROL FROM PFD (DEFAULT)
OUTPUT MUX SOURCE
LOCK DETECT (DEFAULT)
VPTAT
BUFFERED VERSION OF REFERENCE INPUT
PFD PHASE OFFSET POLARITY
NEGATIVE
POSITIVE (DEFAULT, RECOMMENDED)
CHARGE PUMP CURRENT
REFERENCE SOURCE
INTERNAL (DEFAULT)
EXTERNAL
0.25 × REFERENCE INPUT
CHARGE PUMP
CURRENT MULTIPLIER
1
2 (DEFAULT, RECOMMENDED)
3
4
INPUT REFERENCE
PATH SOURCE
2 × REFERENCE INPUT
REFERENCE INPUT (DEFAULT)
0.5 × REFERENCE INPUT
BUFFERED VERSION OF 2 × REFERENCE INPUT
TRISTATE
BUFFERED VERSION OF 0.25 × FREF
RESERVED (DO NOT USE)
PE1
0
1
DIVIDER PATH EDGE
SENSITIVITY
FALLING EDGE (RECOMMENDED)
RISING EDGE (DEFAULT)
...
...
...
...
...
...
...
...
...
...
...
...
Figure 37. Charge Pump, PFD, and Reference Path Control Register (R4)



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