AD9520-4 Analog Devices, Inc., AD9520-4 Datasheet - Page 16
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AD9520-4
Manufacturer Part Number
AD9520-4
Description
12 Lvpecl/24 Cmos Output Clock Generator With Integrated 1.6 Ghz Vco
Manufacturer
Analog Devices, Inc.
Datasheet
1.AD9520-4.pdf
(84 pages)
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AD9520-4
POWER DISSIPATION
Table 18.
Parameter
POWER DISSIPATION, CHIP
POWER DELTAS, INDIVIDUAL FUNCTIONS
Power-On Default
PLL Locked; One LVPECL Output Enabled
PLL Locked; One CMOS Output Enabled
Distribution Only Mode; VCO Divider On;
Distribution Only Mode; VCO Divider Off;
Maximum Power, Full Operation
PD Power-Down
PD Power-Down, Maximum Sleep
VCP Supply
VCO Divider On/Off
REFIN (Differential) Off
REF1, REF2 (Single-Ended) On/Off
VCO On/Off
PLL Dividers and Phase Detector On/Off
LVPECL Channel
LVPECL Driver
CMOS Channel
CMOS Driver On/Off
Channel Divider Enabled
Zero Delay Block On/Off
One LVPECL Output Enabled
One LVPECL Output Enabled
Min
Typ
1.32
0.55
0.52
0.39
0.36
1.5
60
24
4
32
25
15
67
51
121
51
145
11
40
30
4.8
Max
1.5
0.64
0.62
0.46
0.42
1.7
80
33
40
30
20
104
63
144
73
180
24
57
34
Rev. 0 | Page 16 of 84
Unit
W
W
W
W
W
W
mW
mW
mW
mW
mW
mW
mW
mW
mW
mW
mW
mW
mW
mW
Test Conditions/Comments
Does not include power dissipated in external resistors; all
LVPECL outputs terminated with 50 Ω to V
outputs have 10 pF capacitive loading; VS_DRV = 3.3 V
No clock; no programming; default register values
f
one LVPECL output and output divider enabled; zero delay off;
I
f
one CMOS output and output divider enabled; zero delay off;
I
f
output and output divider enabled; zero delay off
f
LVPECL output and output divider enabled; zero delay off
PLL on; internal VCO = 160 MHz; VCO divider = 2; all channel
dividers on; 12 LVPECL outputs @ 125 MHz; zero delay on
PD pin pulled low; does not include power dissipated in
terminations
PD pin pulled low; PLL power-down 0x010[1:0] = 01b; SYNC
power-down 0x230[2] = 1b; power-down distribution reference
0x230[1] = 1b
PLL operating; typical closed-loop configuration
Power delta when a function is enabled/disabled
VCO divider not used
Delta between reference input off and differential reference
input mode
Delta between reference inputs off and one singled-ended
reference enabled; double this number if both REF1 and REF2
are both powered up
Internal VCO disabled; CLK input selected
PLL off to PLL on, normal operation; no reference enabled
No LVPECL output on to one LVPECL output on; channel divider
set to 1
Second LVPECL output turned on, same channel
No CMOS output on to one CMOS output on; channel divider
set to 1; f
Additional CMOS outputs within the same channel turned on
Delta between divider bypassed (divide-by-1) and divide-by-2 to
divide-by-32
CP
CP
REF
REF
CLK
CLK
= 4.8 mA
= 4.8 mA
= 25 MHz; f
= 25 MHz; f
= 2.4 GHz; f
= 1.6 GHz; f
OUT
= 62.5 MHz and 10 pF of capacitive loading
OUT
OUT
OUT
OUT
= 250 MHz; VCO = 1.5 GHz; VCO divider = 2;
= 62.5 MHz; VCO = 1.5 GHz; VCO divider = 2;
= 200 MHz; VCO divider = 2; one LVPECL
= 200 MHz; VCO divider bypassed; one
CC
− 2 V; all CMOS