AD9516-1 Datasheet, PDF (69/84 Pages) Analog Devices – 14-Output Clock Generator with Integrated 2.5 GHz VCO

Reg.
Addr
(Hex) Bit(s) Name
A4 <2:0> OUT7 Ramp
Current
A5 <5:0> OUT7 Delay
Fraction
A6 <0> OUT8 Delay
Bypass
A7 <5:3> OUT8 Ramp
Capacitors
A7 <2:0> OUT8 Ramp
Current
A8 <5:0> OUT8 Delay
Fraction
A9 <0> OUT9 Delay
Bypass
AD9516-1
Description
Ramp current for the delay function. The combination of the number of capacitors and the ramp
current sets the delay full scale.
<2> <1> <0> Current (μA)
0 0 0 200
0 0 1 400
0 1 0 600
0 1 1 800
1 0 0 1000
1 0 1 1200
1 1 0 1400
1 1 1 1600
Selects the fraction of the full-scale delay desired (6-bit binary).
000000 give zero delay.
Only delay values up to 47 decimals (101111b; 0x2F) are supported.
Bypass or use the delay function.
<0> = 0; use delay function.
<0> = 1; bypass delay function.
Selects the number of ramp capacitors used by the delay function. The combination of the number of
capacitors and the ramp current sets the delay full scale.
<5> <4> <3> Number of Capacitors
0004
0013
0103
0112
1003
1012
1102
1111
Ramp current for the delay function. The combination of the number of capacitors and the ramp
current sets the delay full scale.
<2> <1> <0> Current (μA)
0 0 0 200
0 0 1 400
0 1 0 600
0 1 1 800
1 0 0 1000
1 0 1 1200
1 1 0 1400
1 1 1 1600
Selects the fraction of the full-scale delay desired (6-bit binary).
000000 gives zero delay.
Only delay values up to 47 decimals (101111b; 0x2F) are supported.
Bypass or use the delay function.
<0> = 0; use delay function.
<0> = 1; bypass delay function.
Rev. 0 | Page 69 of 84