參數(shù)資料
型號(hào): DS1086
英文描述: 10/100/1000 Base-T Ethernet LAN Switch
中文描述: 擴(kuò)頻EconOscillator
文件頁(yè)數(shù): 7/14頁(yè)
文件大小: 229K
代理商: DS1086
D
DS1086 Spread-Spectrum EconOscillator
_____________________________________________________________________
7
Pin Description
PIN
1
2
3
4
NAME
OUT
SPRD
V
CC
GND
FUNCTION
Oscillator Output
Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled.
Power Supply
Ground
5
OE
Output Enable. When the pin is high, the output buffer is enabled. When the pin is low, the output is
disabled but the master oscillator is still on.
6
PDN
Power-Down. When the pin is high, the master oscillator is enabled. When the pin is low, the master
oscillator is disabled (power-down mode).
7
SDA
2-Wire Serial Data. This pin is for serial data transfer to and from the device. The pin is open drain
and can be wire-OR’ed with other open-drain or open-collector interfaces.
8
SCL
2-Wire Serial Clock. This pin is used to clock data into the device on rising edges and clock data out
on falling edges.
DS1086
DITHERED 260kHz TO
133MHz OUTPUT
DECOUPLING CAPACITORS
(0.1
μ
F and 0.01
μ
F)
SPRD
OUT
V
CC
GND
V
CC
V
CC
4.7k
4.7k
V
CC
2-WIRE
INTERFACE
SCL
SDA
PDN
OE
Processor-Controlled Mode
DS1086
XTL1/OSC1
MICRO-
PROCESSOR
XTL2/OSC2
DITHERED 260kHz TO
133MHz OUTPUT
DECOUPLING CAPACITORS
(0.1
μ
F and 0.01
μ
F)
*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086 NEVER NEEDS
TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING.
SPRD
OUT
V
CC
GND
V
CC
V
CC
N.C.
SCL*
SDA*
PDN
OE
Stand-Alone Mode
CLOCK SPECTRUM COMPARISON
(9kHz BW, PEAK DETECT)
D
FREQUENCY (MHz)
R
94
91
93
92
-35
-30
-25
-20
-15
-10
-5
0
-40
90
95
DS1086 NO DITHER
DS1086 4% DITHER
CRYSTAL OSC
Figure 1. Clock Spectrum Dither Comparison
MAXIMUM TEMPERATURE VARIATION
vs. MASTER FREQUENCY
FREQUENCY (MHz)
F
°
C
82.75
116.25
99.50
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
66.00
133.00
D
Figure 2. Temperature Variation Over Frequency
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1086_1203 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Spread-Spectrum EconOscillator
DS1086HU-C01 制造商:Maxim Integrated Products 功能描述:TRW 5V OSC 360 KHZ 8% CTR 8192 8U - Rail/Tube
DS1086HU-C01/T 制造商:Maxim Integrated Products 功能描述:TRW 5V OSC 360 K 8% CTR 8192 8U TRL - Tape and Reel
DS1086HU-C02+ 功能描述:可編程振蕩器 Spread-Spectrum EconOscillator RoHS:否 制造商:IDT 封裝 / 箱體:5 mm x 7 mm x 1.5 mm 頻率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 頻率穩(wěn)定性:+/- 50 PPM 電源電壓:3.63 V 負(fù)載電容:10 pF 端接類(lèi)型:SMD/SMT 輸出格式:LVPECL 最小工作溫度:- 40 C 最大工作溫度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封裝:
DS1086HU-C02+T 制造商:Maxim Integrated Products 功能描述:TRW 5V OSC 600KHZ 8 CTR 8196 8U T&R - Tape and Reel