MAX19700 查看數據表（PDF） - Maxim Integrated
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MAX19700 Datasheet PDF : 32 Pages
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7.5Msps, Ultra-Low-Power
Analog Front-End
Typical Operating Characteristics (continued)
(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 7.5MHz 50% duty cycle, ADC input
amplitude = -0.5dBFS, DAC output amplitude = 0dBFS, differential ADC input, differential DAC output, CREFP = CREFN = CCOM =
0.33µF, TA = +25°C, unless otherwise noted.)
Tx PATH SPURIOUS-FREE DYNAMIC
RANGE vs. OUTPUT AMPLITUDE
80
fOUT = 620kHz
75
70
65
60
55
50
45
40
35
30
-30 -25 -20 -15 -10 -5 0
OUTPUT AMPLITUDE (dBFS)
Tx PATH CHANNEL-ID SPECTRAL PLOT
0
fID = 620kHz
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.2
1.2
2.2
3.2
FREQUENCY (MHz)
Tx PATH CHANNEL-ID SPECTRAL PLOT
WITH IMAGE REJECTION
0
fID = 800kHz, fCLK = 5.12Msps
-10
-20
-30
-40
-50
-60
IMAGE REJECTION
-70
-80
-90
0.5
1.5
2.5
3.5
4.5
FREQUENCY (MHz)
Tx PATH CHANNEL-QD SPECTRAL PLOT
0
fQD = 620kHz
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.2
1.2
2.2
3.2
FREQUENCY (MHz)
SUPPLY CURRENT vs. SAMPLING RATE
12.6
Ext4-Rx MODE
12.4
12.2
12.0
11.8
IVDD
11.6
11.4
11.2
11.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
SAMPLING RATE (MHz)
Tx PATH CHANNEL-ID TWO-TONE
SPECTRAL PLOT
0
-10 f1
-20
f2
f1 = 600kHz, f2 = 800kHz
-30
-40
-50
-60
-70
-80
-90
-100
0.2
1.2
2.2
3.2
FREQUENCY (MHz)
Rx ADC INTEGRAL NONLINEARITY
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
128 256 384 512 640 768 896 1024
DIGITAL OUTPUT CODE
Tx PATH CHANNEL-QD TWO-TONE
SPECTRAL PLOT
0
-10 f1
f2
-20
f1 = 600kHz, f2 = 800kHz
-30
-40
-50
-60
-70
-80
-90
-100
0.2
1.2
2.2
3.2
FREQUENCY (MHz)
TRANSMIT FILTER
FREQUENCY RESPONSE
0
-20
-40
-60
-80
-100
0.1
1
10
FREQUENCY (MHz)
12 ______________________________________________________________________________________
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