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參數(shù)資料
| 型號(hào)： | MK2716SLFTR |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 74.25 MHz, VIDEO CLOCK GENERATOR, PDSO8 |
| 封裝： | 0.150 INCH, LEAD FREE, SOIC-8 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 123K |
| 代理商： | MK2716SLFTR |
HDTV CLOCK SYNTHESIZER
MDS 2716 D
2
Revision 021605
I n tegr at ed Circuit Sy stems
525 Race Street , San Jose, CA 95126
t e l (40 8 ) 297-1201
www. i cst.com
MK2716
Pin Assignment
FREQUENCY SELECT TABLE
Pin Descriptions
External Components
Decoupling Capacitor
As with any high performance mixed-signal IC, the
MK2716 must be isolated from system power supply
noise to perform optimally.
A decoupling capacitor of 0.01F must be connected
between VDD and GND on pins 2 and 3. It must be
connected close to the MK2716 to minimize lead
inductance. Pin 5 can be connected to pin 3. No
external power supply filtering is required for the
MK2716.
Series Termination Resistor
A 33
terminating resistor can be used next to the
clock outputs for trace lengths over one inch.
Crystal Load Capacitors
The total on-chip capacitance is approximately 18 pF. A
parallel resonant, fundamental mode, AT cut 27 MHz
crystal should be used. The device crystal connections
should include pads for small capacitors from X1 to
ground and from X2 to ground. These capacitors are
used to adjust the stray capacitance of the board to
match the nominally required crystal load capacitance.
Because load capacitance can only be increased in this
trimming process, it is important to keep stray
capacitance to a minimum by using very short PCB
traces (and no vias) between the crystal and device.
Crystal capacitors, if needed, must be connected from
each of the pins X1 and X2 to ground.
The value (in pF) of these crystal caps should equal
(CL -16 pF)*2. In this equation, CL= crystal load
capacitance in pF. Example: For a crystal with an 18 pF
load capacitance, each crystal capacitor would be 4 pF
[(18-16) x 2] = 4.
ICLK/X1
VDD
GND
27M
CLK
SEL
GND
X2
1
2
3
4
8
7
6
5
SEL
CLK (MHz)
0
74.17582418
1
74.25
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
ICLK/X1
XI
Crystal connection. Connect to a 27 MHz fundamental crystal or clock.
2
VDD
Power
Connect to +3.3 V or +5 V.
3
GND
Power
Connect to ground.
4
27M
Output
74.17582418 MHZ or 74.25 MHz clock output (see table above).
5
GND
Power
Connect to ground.
6
SEL
Input
Select pin determines value of CLK per table above.
7
27M
Output
27 MHz buffered clock or crystal oscillator output.
8
X2
XO
Crystal connection. Connect to a 27 MHz crystal, or leave unconnected
for clock input.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MK2716STR | 功能描述:IC CLK SYNTHESIZER HDTV 8-SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時(shí)鐘 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
| MK27-1A66B-500W | 功能描述:近程傳感器 Reed Sensor 1 Form A SPST-NO, 10W AT 1015 RoHS:否 制造商:Vishay Semiconductors 感應(yīng)方式:Optical 感應(yīng)距離:1 mm to 200 mm 電源電壓:2.5 V to 3.6 V 安裝風(fēng)格:SMD/SMT 輸出配置:Digital 最大工作溫度:+ 85 C 最小工作溫度:- 25 C 系列:VCNL3020 |
| MK27-1A66B-500W_DE | 制造商:MEDER 制造商全稱:Meder Electronic 功能描述:(deutsch) MK Reed Sensor |
| MK2722 | 制造商:ICS 制造商全稱:ICS 功能描述:Sigma Designs Clock Source |
| MK2722-01S | 制造商:ICS 制造商全稱:ICS 功能描述:Sigma Designs Clock Source |
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