参数资料
型号: MAX2609EVKIT
厂商: Maxim Integrated
文件页数: 7/15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
MAX2605
REQUIRED INDUCTANCE vs. DESIRED VCO FIXED FREQUENCY
1900
MEASUREMENT CONDITIONS
1800
1700
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).
1600
1500
1400
1300
1200
EFFECTIVE INDUCTANCE
FROM IND TO GND
1100
1000
INDUCTOR VALUE
MOUNTED ON EV KIT
900
800
700
45
47
49
51
53
55
57
59
61
63
65
67
69
DESIRED VCO FIXED FREQUENCY (MHz)
Figure 1. MAX2605 Required Inductance vs. Desired VCO Fixed Frequency
Maxim Integrated
7
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