AD9523
Data Sheet
Rev. C | Page 16 of 60
TYPICAL PERFORMANCE CHARACTERISTICS
fVCXO = 122.88 MHz, REFA differential at 30.72 MHz, fVCO = 3686.4 MHz, and doubler is off, unless otherwise noted.
0
10
20
30
40
50
60
0
200
400
600
800
1000
1200
CURRE
NT
(
mA)
FREQUENCY (MHz)
HSTL = 16mA
HSTL = 8mA
08439-
003
Figure 3. VDD3_OUT[x:y] Current (Typical) vs. Frequency;
HSTL Mode, 16 mA and 8 mA
0
5
10
15
20
25
30
35
40
45
0
200
400
600
800
1000
1200
CURRE
NT
(
mA)
FREQUENCY (MHz)
LVDS = 3.5mA
LVDS = 7mA
08439-
004
Figure 4. VDD3_OUT[x:y] Current (Typical) vs. Frequency;
LVDS Mode, 7 mA and 3.5 mA
0
5
10
15
20
25
30
35
40
45
0
200
400
600
800
1000
1200
CURRE
NT
(
mA)
FREQUENCY (MHz)
08439-
005
Figure 5. VDD3_OUT[x:y] Current (Typical) vs. Frequency, LVPECL Mode
0
100
200
300
400
500
600
CURRE
NT
(
mA)
FREQUENCY (MHz)
10pF
20pF
08439-
006
0
5
10
15
20
25
30
35
2pF
Figure 6. VDD3_OUT[x:y] Current (Typical) vs. Frequency;
CMOS Mode, 20 pF, 10 pF, and 2 pF Load
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
200
400
600
800
1000
1200
D
IFFE
R
E
N
TIA
L
SW
IN
G
(V
p
-p
)
FREQUENCY (MHz)
HSTL = 8mA
HSTL = 16mA
08439-
007
Figure 7. Differential Voltage Swing vs. Frequency;
HSTL Mode, 16 mA and 8 mA
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
200
400
600
800
1000
1200
D
IFFE
R
E
N
TIA
L
SW
IN
G
(V
p
-p
)
FREQUENCY (MHz)
08439-
008
Figure 8. Differential Voltage Swing vs. Frequency,
LVPECL Mode