Datasheet

AD9522-1
Rev. 0 | Page 15 of 84
POWER DISSIPATION
Table 18.
Parameter Min Typ Max Unit Test Conditions/Comments
POWER DISSIPATION, CHIP
Does not include power dissipated in external resistors; all LVDS
outputs terminated with 100 Ω across differential pair; all CMOS
outputs have 10 pF capacitive loading
Power-On Default 0.88 1.0 W No clock; no programming; default register values
PLL Locked; One LVDS Output Enabled 0.54 0.63 W
f
REF
= 25 MHz; f
OUT
= 250 MHz; VCO = 2500 MHz; VCO divider = 2;
one LVDS output and output divider enabled; zero delay off;
I
CP
= 4.8 mA
PLL Locked; One CMOS Output Enabled 0.55 0.66 W
f
REF
= 25 MHz; f
OUT
= 62.5 MHz; VCO = 2500 MHz; VCO divider = 2;
one CMOS output and output divider enabled; zero delay off;
I
CP
= 4.8 mA
Distribution Only Mode; VCO Divider On;
One LVDS Output Enabled
0.36 0.43 W
f
CLK
= 2.4 GHz; f
OUT
= 200 MHz; VCO divider = 2; one LVDS output
and output divider enabled; zero delay off
Distribution Only Mode; VCO Divider Off;
One LVDS Output Enabled
0.33 0.4 W
f
CLK
= 2.4 GHz; f
OUT
= 200 MHz; VCO divider bypassed; one LVDS
output and output divider enabled; zero delay off
Maximum Power, Full Operation 1.1 1.3 W
PLL on; internal VCO = 2500 MHz; VCO divider = 2; all channel
dividers on; 12 LVDS outputs @ 125 MHz; zero delay on
PD Power-Down
35 50 mW
PD pin pulled low; does not include power dissipated in
termination resistors
PD Power-Down, Maximum Sleep
27 43 mW
PD pin pulled low; PLL power-down, 0x010[1:0] = 01b; power-
down SYNC, 0x230[2] = 1b; power-down distribution reference,
0x230[1] = 1b
VCP Supply 8 2.3 mW PLL operating; typical closed-loop configuration
POWER DELTAS, INDIVIDUAL FUNCTIONS Power delta when a function is enabled/disabled
VCO Divider On/Off 33 43 mW VCO divider not used
REFIN (Differential) Off 25 31 mW
Delta between reference input off and differential reference
input mode
REF1, REF2 (Single-Ended) On/Off 16 22 mW
Delta between reference inputs off and one single-ended
reference enabled; double this number if both REF1 and REF2
are powered up
VCO On/Off 60 95 mW Internal VCO disabled; CLK input selected
PLL Dividers and Phase Detector On/Off 54 67 mW PLL off to PLL on, normal operation; no reference enabled
LVDS Channel 118 146 mW No LVDS output on to one LVDS output on; channel divider set to 1
LVDS Driver 11 15 mW Second LVDS output turned on, same channel
CMOS Channel 120 154 mW
No CMOS output on to one CMOS output on; channel divider
set to 1; f
OUT
= 62.5 MHz and 10 pF of capacitive loading
CMOS Driver On/Off 16 30 mW Additional CMOS outputs within the same channel turned on
Channel Divider Enabled 33 40 mW
Delta between divider bypassed (divide-by-1) and divide-by-2 to
divide-by-32
Zero Delay Block On/Off 30 35 mW