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MAX2620EUA-T PDF预览

MAX2620EUA-T

更新时间: 2024-10-28 21:18:47
品牌 Logo 应用领域
美信 - MAXIM 电信光电二极管电信集成电路
页数 文件大小 规格书
11页 229K
描述
RF and Baseband Circuit, Bipolar, PDSO8, MICRO, MAX-8

MAX2620EUA-T 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:MICRO, MAX-8针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:5.05JESD-30 代码:S-PDSO-G8
JESD-609代码:e0长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):240
认证状态:Not Qualified座面最大高度:1.1 mm
标称供电电压:3 V表面贴装:YES
技术:BIPOLAR电信集成电路类型:RF AND BASEBAND CIRCUIT
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3 mmBase Number Matches:1

MAX2620EUA-T 数据手册

 浏览型号MAX2620EUA-T的Datasheet PDF文件第5页浏览型号MAX2620EUA-T的Datasheet PDF文件第6页浏览型号MAX2620EUA-T的Datasheet PDF文件第7页浏览型号MAX2620EUA-T的Datasheet PDF文件第8页浏览型号MAX2620EUA-T的Datasheet PDF文件第10页浏览型号MAX2620EUA-T的Datasheet PDF文件第11页 
10MHz to 1050MHz Integrated  
RF Oscillator with Buffered Outputs  
R , the negative real impedance, is set by C3 and C4  
n
and is approximately:  
V
CC  
V
CC  
[Equation 2]  
0.01µF  
  
  
  
  
1
1
10Ω  
0.01µF  
R = g  
n
m
2πf C + C  
2πf C + C  
(
)
(
)
3
03  
4
04  
27pF  
10µH  
where g = 18mS.  
m
Using the circuit model of Figure 5, the following exam-  
ple describes the design of an oscillator centered at  
900MHz.  
0.01µF  
1
2
8
7
V
1
OUT  
OUT  
OUT  
CC  
V
CC  
30pF  
Choose: L1 = 5nH 10ꢀ  
Q = 140  
TANK  
V 2  
CC  
0.01µF  
0.01µF  
MAX2620  
×
× ×  
f
Calculate: R = Q 2π  
L1  
3
4
6
5
p
120pF  
120pF  
FDBK  
SHDN  
GND  
OUT  
Using Equation 1, solve for varactor capacitance (C ).  
D1  
C
is the capacitance of the varactor when the volt-  
D1  
age applied to the varactor is approximately at half-  
supply (the center of the varactor’s capacitance range).  
Assume the following values:  
51Ω  
0.01µF  
SHDN  
C
C
= 2.7pF, C17 = 1.5pF, C6 = 1.5pF, C5 = 1.5pF,  
STRAY  
= 2.4pF, C = 2.4pF, C3 = 2.7pF, and C4 = 1pF  
03  
04  
The value of C  
is based on approximate perfor-  
STRAY  
V
CC  
mance of the MAX2620 EV kit. Values of C3 and C4 are  
chosen to minimize R (Equation 2) while not loading  
X = STATEK AT-3004 10MHz  
FUNDAMENTAL MODE CRYSTAL SURFACE MOUNT  
= 20pF  
n
C
LOAD  
the resonant circuit with excessive capacitance. C  
03  
and C are parasitic capacitors.  
04  
Figure 4. 10MHz Crystal Oscillator  
The varactor’s capacitance range should allow for the  
desired tuning range. Across the tuning frequency  
Sample Calculation  
According to the electrical model shown in Figure 5, the  
resonance frequency can be calculated as:  
range, ensure that R < 1/2 R .  
s
n
The MAX2620’s oscillator is optimized for low-phase-  
noise operation. Achieving lowest phase-noise charac-  
teristics requires the use of high-Q (quality factor)  
components such as ceramic transmission-line type  
[Equation 1]  
1
f
=
O
C
C
x C  
+ C  
C
C
x C  
n
+ C  
n
17  
17  
D1  
D1  
5
5
2π L1 C  
+
+ C  
+
6
STRAY  
C
+ C  
3
C
+ C  
04  
(
)(  
)
03  
4
where C  
=
n
C
+ C  
+ C + C  
3
03  
4
04  
_______________________________________________________________________________________  
9

MAX2620EUA-T 替代型号

型号 品牌 替代类型 描述 数据表
MAX2620EUA+T MAXIM

完全替代

RF and Baseband Circuit, Bipolar, PDSO8, MICRO, MAX-8
MAX2620EUA+ MAXIM

完全替代

RF and Baseband Circuit, Bipolar, PDSO8, MICRO, MAX-8
MAX2620EUA MAXIM

类似代替

10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs

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