Datasheet

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SBAS279D − AUGUST 2003 − REVISED JULY 2005
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12
TYPICAL CHARACTERISTICS (continued)
T
A
= +25°C, +V
A
= +V
AV
= +3V, +V
D
= +V
DV
= +3V, I
OUTFS
= 2mA, differential transformer-coupled output (n = 4:1), R
L
= 400Ω on I-DAC,
R
L
= 2kΩ on V-DAC, and GSET = H unless otherwise noted.
Figure 15
5.60
5.55
5.50
5.45
5.40
5.35
5.30
5.25
5.20
I
A
(mA)
−
40
−
20 0 20 40 60 80 85
Temperature (
_
C)
I
A
vs TEMPERATURE
Figure 16
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
I
D
(mA)
−
40
−
20 0 20 40 60 80 85
Temperature (
_
C)
I
D
vs TE MPERATURE AT f
OUT
AND f
CLK
19.9MHz, 40MSPS
10MHz, 40MSPS
2.2MHz, 40MSPS
1MHz, 20MSPS
Figure 17
5.43
5.42
5.41
5.40
5.39
5.38
5.37
5.36
5.35
I
A
(mA)
2.7 2.8 2.9 3.0 3.1 3.2 3.3
Supply Voltage (V)
I
A
vs SUPPLY VOLTAGE
Figure 18
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
I
D
(mA)
2.72.82.93.03.13.23.3
Supply Voltage (V)
I
D
vs SUPPLY VOLTAGE AT f
OUT
AND f
CLK
19.9MHz, 40MSPS
10MHz, 40MSPS
2.2MHz, 40MSPS
1MHz, 20MSPS
Figure 19
0
−
10
−
20
−
30
−
40
−
50
−
60
−
70
−
80
−
90
−
100
Magnitude (dBm)
02 4681012 1614 18 20
Frequency (MHz)
I−DAC1 OUTPUT SPECTRUM
f
OUT
=2.2MHz
f
CLK
= 40MSPS
Figure 20
0
−
10
−
20
−
30
−
40
−
50
−
60
−
70
−
80
−
90
−
100
02 4681012 1614 18 20
Magnitude (dBm)
Frequency (MHz)
I−DAC2 OUTPUT SPECTRUM
f
OUT
=2.2MHz
f
CLK
= 40MSPS