参数资料
型号: LTC6946IUFD-3#PBF
厂商: Linear Technology
文件页数: 21/30页
文件大小: 0K
描述: IC INTEGER-N PLL W/VCO 28-QFN
软件下载: PLLWizard™
PLLWizard™, with .NET 2.0 installer
标准包装: 73
类型: 时钟/频率合成器(RF/IF),分数-N,整数-N,
PLL:
输入: 时钟
输出: 时钟
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 是/是
频率 - 最大: 5.79GHz
除法器/乘法器: 是/是
电源电压: 3.15 V ~ 5.25 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-QFN(4x5)
包装: 管件
LTC6946
28
6946fa
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
PACKAGE DESCRIPTION
UFD Package
28-Lead Plastic QFN (4mm × 5mm)
(Reference LTC DWG # 05-08-1712 Rev B)
4.00
0.10
(2 SIDES)
2.50 REF
5.00
0.10
(2 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE MADE A JEDEC PACKAGE OUTLINE MO-220 VARIATION (WXXX-X).
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
PIN 1
TOP MARK
(NOTE 6)
0.40
0.10
27
28
1
2
BOTTOM VIEW—EXPOSED PAD
3.50 REF
0.75
0.05
R = 0.115
TYP
R = 0.05
TYP
PIN 1 NOTCH
R = 0.20 OR 0.35
45 CHAMFER
0.25
0.05
0.50 BSC
0.200 REF
0.00 – 0.05
(UFD28) QFN 0506 REV B
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
0.70 0.05
0.25 0.05
0.50 BSC
2.50 REF
3.50 REF
4.10
0.05
5.50
0.05
2.65
0.05
3.10
0.05
4.50
0.05
PACKAGE OUTLINE
2.65
0.10
3.65
0.10
3.65
0.05
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