参数资料
型号: MAX2609EVKIT
厂商: Maxim Integrated
文件页数: 9/15页
文件大小: 0K
描述: EVAL KIT
标准包装: 1
系列: *
MAX2605–MAX2609
45MHz to 650MHz, Integrated IF
VCOs with Differential Output
MAX2607
REQUIRED INDUCTANCE vs. DESIRED VCO FIXED FREQUENCY
170
MEASUREMENT CONDITIONS
160
150
140
VCC = 2.75V, TA = 25 ° C,
RLOAD = 100 ? ||50 ? (100 ? RESISTIVE PULL-UP PARALLELED WITH 50 ?
VNA IMPEDANCE), UNUSED OUTPUT TERMINATED IN 50 ? ,
PCB PARASITIC SHUNT CAPACITANCE (IND TO GND) = 0.45pF
THE INDUCTANCE LISTED IS THE PRECISE NOMINAL INDUCTANCE VALUE
REQUIRED FROM IND TO GND IN ORDER TO GUARANTEE THE VCO
CAN TUNE TO THE DESIRED FIXED FREQUENCY, OVER ALL OPERATING
CONDITIONS AND WORST-CASE COMPONENT
VALUES ( ± 2% INDUCTOR AND IC PROCESS VARIATION).
130
120
110
100
90
80
EFFECTIVE INDUCTANCE
FROM IND TO GND
70
60
INDUCTOR VALUE
MOUNTED ON EV KIT
50
40
30
150 160 170 180 190 200
210
220 230 240
250 260 270 280 290 300
DESIRED VCO FIXED FREQUENCY (MHz)
Figure 3. MAX2607 Required Inductance vs. Desired VCO Fixed Frequency
Maxim Integrated
9
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