SPT5240
DATA SHEET
Typical Performance Characteristics
(TA = 25°C, AVDD = 3.3V, DVDD = 3.3V,
ƒOUT = 1.27MHz,
ƒCLK = 400MHz, Clock Duty Cycle = 50%,
I
= 20mA, R = 50Ω; unless otherwise noted)
OUT
L
AC Performance vs. Temperature
AC Performance vs. Clock Frequency
65
65
Clock frequency = 327MHz
SFDR
60
55
50
45
40
35
30
SFDR
60
THD
THD
SNR
55
50
SNR
45
40
25
-50
-25
0
25
50
75
0
100
200
300
400
500
600
Temperature (°C)
Clock Frequency (MHz)
Intergral Nonlinearity vs. Code
AC Performance vs. V
DD
2.0
1.5
1.0
65
60
SFDR
THD
55
50
45
40
35
0.5
0
SNR
-0.5
0
128 256 384 512 640
768 896 1024
3.0
3.3
3.6
Code
VDD (V)
Differential Nonlinearity vs. Code
AV , DV
vs. Clock Frequency
DD
DD
0.6
0.4
45
35
25
15
5
AVDD
0.2
0
-0.2
-0.4
DVDD
105
-0.6
0
128 256 384 512 640
768 896 1024
40
205
245
328
400
Code
Clock (MHz)
REV. 1 June 2003
5
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
