参数资料
型号: LTC6946IUFD-3#PBF
厂商: Linear Technology
文件页数: 12/30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
2
6946fa
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Supply Voltages
V+ (VREF+, VREFO+, VRF+, VD+) to GND..................3.6V
VCP+, VVCO+ to GND .............................................5.5V
Voltage on CP Pin ................. GND – 0.3V to VCP+ + 0.3V
Voltage on All Other Pins ..........GND – 0.3V to V+ + 0.3V
Operating Case Temperature Range (TC)
(Note 2).................................................. –40°C to 105°C
Operating Junction Temperature........................... 125°C
Storage Temperature Range .................. –65°C to 150°C
(Note 1)
9
10
TOP VIEW
29
GND
UFD PACKAGE
28-LEAD (4mm
5mm) PLASTIC QFN
11 12 13
28 27 26 25 24
14
23
6
5
4
3
2
1
VREFO+
REFO
STAT
CS
SCLK
SDI
SDO
VD
+
VVCO
+
GND
CMA
CMB
CMC
GND
TB
TUNE
REF
REF
+
V
REF
+
CP
V
CP
+
GND
MUTE
GND
RF
RF
+
V
RF
+
BB
7
17
18
19
20
21
22
16
8
15
TJMAX = 125°C, θJC = 7°C/W,
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
CASE TEMPERATURE RANGE
LTC6946IUFD-1#PBF
LTC6946IUFD-1#TRPBF
69461
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 105°C
LTC6946IUFD-2#PBF
LTC6946IUFD-2#TRPBF
69462
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 105°C
LTC6946IUFD-3#PBF
LTC6946IUFD-3#TRPBF
69463
28-Lead (4mm × 5mm) Plastic QFN
–40°C to 105°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
AVAILABLE OPTIONS
VCO FREQUENCY
RANGE (GHz)
PACKAGE STYLE
OUTPUT FREQUENCY RANGE vs OUTPUT DIVIDER SETTING (GHz)
QFN-28 (UFD28)
0 DIV = 6
0 DIV = 5
0 DIV = 4
0 DIV = 3
0 DIV = 2
0 DIV = 1
2.240 to 3.740
LTC6946IUFD-1
0.373 to 0.623
0.448 to 0.748
0.560 to 0.935
0.747 to 1.247
1.120 to 1.870
2.240 to 3.740
3.080 to 4.910
LTC6946IUFD-2
0.513 to 0.818
0.616 to 0.982
0.770 to 1.228
1.027 to 1.637
1.540 to 2.455
3.080 to 4.910
3.840 to 5.790
LTC6946IUFD-3
0.640 to 0.965
0.768 to 1.158
0.960 to 1.448
1.280 to 1.930
1.920 to 2.895
3.840 to 5.790
Overlapping Frequency Bands
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