參數(shù)資料
型號: MAX2078CTK+
廠商: Maxim Integrated Products
文件頁數(shù): 26/26頁
文件大小: 0K
描述: IC FRNT-END ULTRASOUND 8CH 68QFN
應(yīng)用說明: Ultrasound Imaging Systems Application Note
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
特色產(chǎn)品: MAX2078 Octal-Channel Ultrasound Front-End with CW Doppler Mixers
標(biāo)準(zhǔn)包裝: 30
類型: 超聲波接收器
應(yīng)用: 醫(yī)療用超聲波成像,聲納
安裝類型: 表面貼裝
封裝/外殼: 68-TQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 68-TQFN-EP(10x10)
包裝: 管件
MAX2078
Octal-Channel Ultrasound Front-End
with CW Doppler Mixers
_______________________________________________________________________________________
9
GAIN vs. DIFFERENTIAL ANALOG
CONTROL VOLTAGE
MAX2078
toc01
CONTROL VOLTAGE (V)
GAIN
(dB)
2
1
0
-1
-2
15
25
35
45
5
-3
3
COMPLEX INPUT IMPEDANCE MAGNITUDE
vs. FREQUENCY
MAX2078
toc02
FREQUENCY (MHz)
INPUT
IMPEDANCE
)
15
10
5
200
400
600
800
1000
0
020
1k
Ω
100
Ω
200
Ω
50
Ω
GAIN ERROR HISTOGRAM
MAX2078
toc03
GAIN ERROR (dB)
%
UNITS
5
10
15
20
25
0
-0.175
-0.125
-0.075
-0.025
0.025
0.075
0.125
0.175
0.225
0.275
GAIN = 20dB
OUTPUT-REFERRED NOISE vs. GAIN
MAX2078
toc04
GAIN (dB)
NOISE
(nV/
Hz)
35
26
17
30
60
90
120
150
180
0
8
44
INPUT-REFERRED NOISE vs. GAIN
MAX2078
toc05
GAIN (dB)
35
26
17
2
3
4
5
6
1
8
44
NOISE
(nV/
Hz)
SECOND-HARMONIC DISTORTION
vs. GAIN
MAX2078
toc06
GAIN (dB)
HD2
(dBc)
38
32
26
-80
-70
-60
-50
-40
-30
-90
20
44
VOUT = 1VP-P
fRF = 10MHz
fRF = 2MHz
fRF = 5MHz
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.)
_______________________________________________________________________________________
9
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