MAX2078(2009) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
比赛名单
MAX2078 Datasheet PDF : 25 Pages
| |||
Octal-Channel Ultrasound Front-End
with CW Doppler Mixers
Typical Operating Characteristics
(Typical Application Circuit, VREF = 2.475V to 2.525V, VCC1 = 3.13V to 3.47V, VCC2 = 4.5V to 5.25V, TA = 0°C to +70°C, VGND = 0V,
NP = 0, PD = 0, CLP = 0, D43/D42/D41/D40 = 1/0/1/0 (RIN = 200Ω, LNA gain = 18.5dB), D45/D44 = 1/1(fC = 18MHz), fRF = fLO/16 =
5MHz, capacitance to GND at each of the VGA differential outputs is 25pF, differential capacitance across VGA outputs is 15pF,
RL = 1kΩ differential, RS = 200Ω, CI_, CQ_ pulled up to 11V through four separate 0.1% 162Ω resistors, the rise/fall time of the LVDS
clock driving the LO_ is required to be 0.5ns, reference noise less than 10nV/√Hz from 1kHz to 20MHz, DOUT loaded with 10MΩ
and 60pF. Typical values are at VCC1 = 3.3V, VCC2 = 5V, TA = +25°C, unless otherwise noted.)
GAIN vs. DIFFERENTIAL ANALOG
CONTROL VOLTAGE
45
COMPLEX INPUT IMPEDANCE MAGNITUDE
vs. FREQUENCY
1000
GAIN ERROR HISTOGRAM
25
GAIN = 20dB
35
800
1kΩ
20
600
15
25
400
10
50Ω
200Ω
15
100Ω
200
5
5
-3 -2 -1 0 1 2 3
CONTROL VOLTAGE (V)
OUTPUT-REFERRED NOISE vs. GAIN
180
150
120
90
60
30
0
8
17
26
35
44
GAIN (dB)
0
0
5
10
15
20
FREQUENCY (MHz)
INPUT-REFERRED NOISE vs. GAIN
6
5
4
3
2
1
8
17
26
35
44
GAIN (dB)
0
GAIN ERROR (dB)
SECOND-HARMONIC DISTORTION
vs. GAIN
-30
VOUT = 1VP-P
-40
fRF = 10MHz
-50
-60
-70
fRF = 5MHz
-80
fRF = 2MHz
-90
20
26
32
38
44
GAIN (dB)
_______________________________________________________________________________________ 9
Share Link: 