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ADF4157 Datasheet(PDF) 10 Page - Analog Devices

Part # ADF4157
Description  High Resolution 6 GHz Fractional-N Frequency Synthesizer
PDF  20 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADF4157 Datasheet(HTML) 10 Page - Analog Devices

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ADF4157
Rev. 0 | Page 10 of 20
REGISTER MAPS
DB31
CONTROL
BITS
12-BIT MSB FRACTIONAL VALUE
(FRAC)
12-BIT INTEGER VALUE (INT)
MUXOUT
CONTROL
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
M4
M3
M2
M1
N12 N11 N10
N9
N8
N7
N6
N5
N4
N3
N2
N1
F25
F24
F23
F22
F21
F20
F19
F18
F17
F16
F15
F14 C3(0) C2(0) C1(0)
FRAC/INT REGISTER (R0)
DB31
CONTROL
BITS
RESERVED
13-BIT LSB FRACTIONAL VALUE
(FRAC) (DBB)
RESERVED
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
0
0
0
F13
F12
F11
F10
F9
F8
F7
F6
F5
F4
F3
F2
F1
0
0
0
0
0
0
0
0
0
0
0
0
C3(0) C2(0) C1(1)
LSB FRAC REGISTER (R1)
DB31
RESERVED
CONTROL
BITS
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00
000
00
00
000
00
00
0
U12
0
00
00
0
U11 U10
U9
U8
U7 C3(0) C2(1) C1(1)
FUNCTION REGISTER (R3)
DB31
RESERVED
CONTROL
BITS
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00
000
00
00
000
00
00
000
00
00
000
00
0
C3(1) C2(0) C1(0)
TEST REGISTER (R4)
NOTES
1. DBB = DOUBLE BUFFERED BIT(S).
DB31
RESERVED
5-BIT R-COUNTER
CURRENT
SETTING
CONTROL
BITS
DB30 DB29 DB28 DB27 DB26 DB25 DB24 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00
0
C1
CPI4 CPI3 CPI2 CPI1
0
P1
U2
U1
R5
R4
R3
R2
R1
00
00
00
000
00
0
C3(0) C2(1) C1(0)
R DIVIDER REGISTER (R2)
DBB
DBB
RESERVED
Figure 16. Register Summary



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