AD9524
Data Sheet
SPECIFICATIONS
fVCXO = 122.88 MHz single-ended, REFA and REFB on differential at 30.72 MHz, fVCO = 3932.16 MHz, doubler is off, channel control
low power mode off, divider phase =1, unless otherwise noted. Typical is given for VDD = 3.3 V 5%, and TA = 25°C, unless otherwise
noted. Minimum and maximum values are given over the full VDD and TA (−40°C to +85°C) variation, as listed in Table 1.
CONDITIONS
Table 1.
Parameter
Min Typ Max
Unit
Test Conditions/Comments
SUPPLY VOLTAGE
VDD3_PLL1, Supply Voltage for PLL1
VDD3_PLL2, Supply Voltage for PLL2
VDD3_REF, Supply Voltage Clock Output Drivers Reference
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
VDD1.8_OUT[x:y],1 Supply Voltage Clock Dividers
TEMPERATURE
3.3
3.3
3.3
3.3
1.8
V
V
V
V
V
3.3 V 5%
3.3 V 5%
3.3 V 5%
3.3 V 5%
1.8 V 5%
Ambient Temperature Range, TA
Junction Temperature, TJ
−40 +25 +85
115
°C
°C
1
OUT0
x and y are the pair of differential outputs that share the same power supply. For example, VDD3_OUT[0:1] is Supply Voltage Clock Output OUT0,
(Pin 41 and Pin 40,
OUT1
respectively) and Supply Voltage Clock Output OUT1,
(Pin 38 and Pin 37, respectively).
SUPPLY CURRENT
Table 2.
Parameter
Min Typ
Max
Unit Test Conditions/Comments
SUPPLIES OTHER THAN CLOCK OUTPUT DRIVERS
VDD3_PLL1, Supply Voltage for PLL1
37
67
43
mA
mA
Decreases by 9 mA typical if REFB is turned
off
VDD3_PLL2, Supply Voltage for PLL2
77.7
VDD3_REF, Supply Voltage Clock Output Drivers
Reference
LVPECL Mode
5
4
6
mA
mA
Only one output driver turned on; for each
additional output that is turned on, the current
increments by 1.2 mA maximum
Only one output driver turned on; for each
additional output that is turned on, the current
increments by 1.2 mA maximum
LVDS Mode
4.8
HSTL Mode
CMOS Mode
3
3
3.6
3.6
4.2
mA
mA
mA
Values are independent of the number of
outputs turned on
Values are independent of the number of
outputs turned on
Current for each divider: f = 245.76 MHz
Channel x control register, Bit 4 = 0
VDD1.8_OUT[x:y],1 Supply Voltage Clock Dividers2
CLOCK OUTPUT DRIVERS—LOWER POWER MODE OFF
LVDS Mode, 7 mA
3.5
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
LVDS Mode, 3.5 mA
11.5
40
13.2
45
mA
mA
f = 122.88 MHz
f = 983.04 MHz
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
LVPECL Compatible Mode
6.5
23
7.5
26.3
mA
mA
f = 122.88 MHz
f = 983.04 MHz
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
HSTL Mode, 8 mA
13
41
14.4
46.5
mA
mA
f = 122.88 MHz
f = 983.04 MHz
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
CMOS Mode (Single-Ended)
VDD3_OUT[x:y],1 Supply Voltage Clock Output Drivers
14
16.3
2.4
mA
mA
f = 122.88 MHz
2
f = 15.36 MHz, 10 pF load
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