參數(shù)資料
型號(hào): MAX2078CTK+
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 4/26頁(yè)
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
12
______________________________________________________________________________________
LNA OVERLOAD RECOVERY TIME
(VIN = 500mVP-P for 1
μs TO 100mVP-P for 1μs
AND BACK TO 500mVP-P for 1
μs, GAIN = 10dB)
TIME (ns)
OUTPUT
(V)
1500
500
1000
-0.25
0.25
0.75
1.25
-0.75
0
2000
MAX2078 toc19
INPUT
(V)
0
-0.5
-1.0
-1.5
0.5
INPUT
OUTPUT
(V)
-1
0
1
2
3
-2
VGA OVERLOAD RECOVERY TIME
(VIN = 40mVP-P for 1
μs TO 4mVP-P for 1μs
AND BACK TO 40mVP-P for 1
μs, GAIN = 42.5dB)
MAX2078 toc20
INPUT
(V)
0
-0.05
-0.10
-0.15
0.05
OUTPUT
TIME (ns)
1500
500
1000
0
2000
INPUT
OVERDRIVE PHASE DELAY
vs. FREQUENCY
MAX2078
toc21
FREQUENCY (MHz)
PHASE
DELAY
(ns)
9
18
27
36
45
0
15
5
10
020
GAIN = 10dB
INPUT = 300mVP-P
INPUT = 30mVP-P
GROUP DELAY vs. FREQUENCY
MAX2078
toc22
GROUP
DELAY
(ns)
25
35
45
15
FREQUENCY (MHz)
15
5
10
020
GAIN = 10dB
GAIN = 20dB
GAIN = 40dB
GAIN = 30dB
CW IMD3 vs. FREQUENCY
MAX2078
toc23
FREQUENCY (MHz)
CW
IMD3
(dBc)
6
4
2
-60
-56
-52
-48
-64
0
8
VIN = 100mVP-P
INPUT-REFERRED NOISE
vs. INPUT CLUTTER VOLTAGE
MAX2078
toc24
INPUT CLUTTER VOLTAGE (mVP-P)
150
100
50
1.32
1.36
1.40
1.44
1.48
1.28
0
200
NOISE
(nV/
Hz)
fCLUTTER = 1.25MHz
OFFSET = 1kHz
LOW-POWER MODE
NORMAL POWER MODE
Typical Operating Characteristics (continued)
(
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.)
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