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MAX19707
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
10 ______________________________________________________________________________________
Rx ADC CHANNEL-IA FFT PLOT
MAX19707 toc01
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5
f
CLK
= 45.006848MHz
f
IA
= 13.00155MHz
16,384-POINT
DATA RECORD
Rx ADC CHANNEL-QA FFT PLOT
MAX19707 toc02
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5
f
CLK
= 45.006848MHz
f
QA
= 13.00155MHz
16,384-POINT
DATA RECORD
Rx ADC CHANNEL-IA
TWO-TONE FFT PLOT
MAX19707 toc03
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5
f
CLK
= 45.006848MHz
f
1
= 1.4MHz
f
2
= 1.8MHz
A
IA
= -7dBFS
PER TONE
8192-POINT
DATA RECORD
Rx ADC CHANNEL-QA
TWO-TONE FFT PLOT
MAX19707 toc04
FREQUENCY (MHz)
AMPLITUDE (dBFS)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5
f
CLK
= 45.006848MHz
f
1
= 1.4MHz
f
2
= 1.8MHz
A
QA
= -7dBFS
PER TONE
8192-POINT
DATA RECORD
Rx ADC SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT FREQUENCY
MAX19707 toc05
ANALOG INPUT FREQUENCY (MHz)
SNR (dB)
806020 40
51
52
53
54
55
56
50
0 100
QA
IA
Rx ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. ANALOG INPUT FREQUENCY
MAX19707 toc06
ANALOG INPUT FREQUENCY (MHz)
SINAD (dB)
806020 40
51
52
53
54
55
56
50
0100
QA
IA
Rx ADC TOTAL HARMONIC DISTORTION
vs. ANALOG INPUT FREQUENCY
MAX19707 toc07
ANALOG INPUT FREQUENCY (MHz)
THD (dBc)
806020 40
-60
-65
-70
-75
-80
-85
-90
-55
-95
0100
QA
IA
Rx ADC SPURIOUS-FREE DYNAMIC RANGE
vs. ANALOG INPUT FREQUENCY
MAX19707 toc08
ANALOG INPUT FREQUENCY (MHz)
SFDR (dBc)
806020 40
85
80
75
70
65
60
0100
QA
IA
Rx ADC SIGNAL-TO-NOISE RATIO
vs. ANALOG INPUT AMPLITUDE
MAX19707 toc09
ANALOG INPUT AMPLITUDE (dBFS)
SNR (dB)
-3-6-9-12-15-18
30
60
50
40
20
10
0
-21 0
f
IN
= 13.00155MHz
QA
IA
Typical Operating Characteristics
(V
DD
= 3V, OV
DD
= 1.8V, internal reference (1.024V), C
L
≈ 10pF on all digital outputs, f
CLK
= 45MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, C
REFP
= C
REFN
=
C
COM
= 0.33µF, T
A
= +25°C, unless otherwise noted.)