MAX2077CTN 查看數據表（PDF） - Maxim Integrated
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MAX2077CTN Datasheet PDF : 19 Pages
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Octal-Channel Ultrasound Front-End
Typical Operating Characteristics (continued)
(Typical Application Circuits, VREF = 2.475V to 2.525V, VCC1 = 3.3V, VCC2 = 4.75V, TA = +25°C, VGND = 0V, NP = 0, PD = 0,
D3/D2/D1/D0 = 1/0/1/0 (RIN = 200Ω, LNA gain = 18.5dB), D5/D4 = 1/1(fC = 18MHz), fRF = 5MHz, RS = 200Ω, capacitance to GND
at each of the VGA differential outputs is 25pF, differential capacitance across VGA outputs is 15pF, RL = 1kΩ differential, reference
noise less than 10nV/√Hz from 1kHz to 20MHz, DOUT loaded with 10MΩ and 60pF, unless otherwise noted.)
TWO-TONE ULTRASOUND-SPECIFIC IMD3
vs. FREQUENCY
0
VOUT = 1VP-P
GAIN = 26dB
-20
-40
-60
-80
0
5
10
15
20
FREQUENCY (MHz)
ADJACENT CHANNEL-TO-CHANNEL
CROSSTALK vs. GAIN
-50
VOUT = 1VP-P
fRF = 10MHz
-55
-60
ADJACENT CHANNEL 1
-65
ADJACENT CHANNEL 2
-70
8
17
26
35
44
GAIN (dB)
ADJACENT CHANNEL-TO-CHANNEL
CROSSTALK vs. FREQUENCY
0
VOUT = 1VP-P
GAIN = 20dB
-30
ADJACENT CHANNEL 1
-60
-90
1
ADJACENT CHANNEL 2
10
100
FREQUENCY (MHz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
(GAIN = 20dB, VOUT = 1VP-P)
30
20
10
9MHz
0
10MHz
-10
-20
1
VOUT = 1VP-P
GAIN = 20dB
10
FREQUENCY (MHz)
15MHz
18MHz
100
COMMON-MODE OUTPUT VOLTAGE
vs. GAIN
1.9
1.8
1.7
1.6
1.5
8
17
26
35
44
GAIN (dB)
DIFFERENTIAL OUTPUT IMPEDANCE
vs. FREQUENCY
180
80 MAX2077 toc18
120
60
0
0
60
REAL
40
20
IMAGINARY
0
10
20
30
40
50
FREQUENCY (MHz)
8 _______________________________________________________________________________________
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