參數(shù)資料
型號(hào): SM802101UMG TR
廠商: Micrel Inc
文件頁數(shù): 7/13頁
文件大小: 0K
描述: IC SYNTHESIZER 100/200MHZ 44QFN
標(biāo)準(zhǔn)包裝: 1
系列: ClockWorks™, RotaryWave™
類型: *
PLL: 帶旁路
輸入: LVCMOS,晶體
輸出: HCSL
電路數(shù): 1
比率 - 輸入:輸出: 2:8
差分 - 輸入:輸出: 無/是
頻率 - 最大: 200MHz
除法器/乘法器: 是/無
電源電壓: 2.375 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 44-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 44-QFN(7x7)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 576-3974-6
Micrel, Inc.
SM802101
March 27, 2013
3
Revision 1.3
hbwhelp@micrel.com or (408) 955-1690
Pin Description (Continued)
Pin Number
Pin Name
Pin Type
Pin Level
Pin Function
14
FSEL
I, (SE)
LVCMOS
Frequency Select, 1 = 100MHz, 0 = 200MHz,
45K
pull-up
12, 13
VDD
PWR
Power Supply
31, 37, 38
VDDO1
PWR
Power Supply for Outputs Q0 – Q3
16, 43, 44
VDDO2
PWR
Power Supply for Outputs Q4 – Q7
21, 23
VSS
(Exposed
Pad)
PWR
Core Power Supply Ground. The exposed pad must
be connected to the VSS ground plane.
24, 39
VSSO1
PWR
Power Supply Ground for Q0 – Q3
3, 6, 40
VSSO2
PWR
Power Supply Ground for Outputs Q4 – Q7
9
PLL_BYPASS
I, (SE)
LVCMOS
PLL Bypass, Selects Output Source
0 = Normal PLL Operation
1 = Output from Input Reference Clock or Crystal
45K
pull-down
10
XTAL_SEL
I, (SE)
LVCMOS
Selects PLL Input Reference Source
0 = REF_IN, 1 = XTAL, 45K
pull-up
11, 20, 27, 30, 34
TEST
Factory Test pins, Do not connect anything to these
pins.
17
REF_IN
I, (SE)
LVCMOS
Reference Clock Input
18
XTAL_IN
I, (SE)
10pF crystal
Crystal Reference Input, no load caps needed (see
Figure 5).
19
XTAL_OUT
O, (SE)
10pF crystal
Crystal Reference Output, no load caps needed
(see Figure 5).
15
OE1
I, (SE)
LVCMOS
Output Enable, Outputs Q0 – Q3 disable to tri-state,
0 = Disabled, 1 = Enabled, 45K
pull-up
22
OE2
I, (SE)
LVCMOS
Output Enable, Outputs Q4 – Q7 disable to tri-state,
0 = Disabled, 1 = Enabled, 45K
pull-up
Truth Tables
PLL_BYPASS
XTAL_SEL
OE2
OE1
INPUT
OUTPUT
0
1
PLL
1
1
XTAL/REF_IN
0
1
REF_IN
1
XTAL
0
1
Q4-Q7 Tri-state
1
0
Q0-Q3 Tri-state
FSEL
Output Frequency
(MHz)
0
200
1
100
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