Rainbow-electronics MAX1211 Manual do Utilizador Página 7

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MAX1211
65Msps, 12-Bit, IF Sampling ADC
_______________________________________________________________________________________ 7
Typical Operating Characteristics
(V
DD
= 3.3V, OV
DD
= 2.0V, GND = 0, REFIN = REFOUT (internal reference), C
REFOUT
= 0.1µF, C
L
5pF at digital outputs, differential
input at -0.5dBFS, DCE = high, CLKTYP = high, PD = low, G/T = low, f
CLK
65MHz (50% duty cycle), C
REFP
= C
REFN
= 0.1µF to GND,
1µF in parallel with 10µF between REFP and REFN, C
COM
= 0.1µF in parallel with 2.2µF to GND, T
A
= +25°C, unless otherwise noted.)
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
048
12
20 28
SINGLE-TONE FFT PLOT
(8192-POINT DATA RECORD)
MAX1211 toc01
FREQUENCY (MHz)
AMPLITUDE (dBFS)
HD3
16
24 32
f
CLK
= 65.0002432MHz
f
IN
= 20.0031266MHz
A
IN
= -0.473dBFS
SNR = 68.481dBc
SINAD = 68.45dBc
THD = 89.888dBc
SFDR = 89.939dBc
HD2
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
048
12
20 28
SINGLE-TONE FFT PLOT
(8192-POINT DATA RECORD)
MAX1211 toc02
FREQUENCY (MHz)
AMPLITUDE (dBFS)
HD3
16
24 32
HD2
f
CLK
= 65.0002432MHz
f
IN
= 32.1271954MHz
A
IN
= -0.529dBFS
SNR = 68.286dBc
SINAD = 68.218dBc
THD = -86.307dBc
SFDR = 89.518dBc
SINGLE-TONE FFT PLOT
(8192-POINT DATA RECORD)
MAX1211 toc03
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0
f
CLK
= 65.000HMz
f
IN
= 70.00671387MHz
A
IN
= -0.494dBFS
SNR = 68.33dBc
SINAD = 68.27dBc
THD = -86.91dBc
SFDR = 89.50dBc
HD2
HD3
048
12
20 28
16
24 32
SINGLE-TONE FFT PLOT
(8192-POINT DATA RECORD)
MAX1211 toc04
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0
f
CLK
= 65.000HMz
f
IN
= 174.9969482MHz
A
IN
= -0.519BFS
SNR = 67.36dBc
SINAD = 67.01dBc
THD = -78.09dBc
SFDR = 79.15dBc
HD2
HD3
48
12
20 28
16
24 32
48
12
20 28
16
24 32
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