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参数资料
| 型号： | DS1089LU-866 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | XO, clock |
| 英文描述： | 3.3V Center Spread`Spectrum EconOscillator |
| 中文描述： | 66.6 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封装： | 0.118 INCH, MICRO, SOP-8 |
| 文件页数： | 7/12页 |
| 文件大小： | 490K |
| 代理商： | DS1089LU-866 |
D
3.3V Center Spread-Spectrum EconOscillator
_____________________________________________________________________
7
Block Diagram
FACTORY-
PROGRAMMED
MASTER
OSCILLATOR
33.3MHz TO
66.6MHz
PRESCALER
DIVIDE BY 1, 2, 4,
8, 16, 32, 64,
128, OR 256
TRIANGLE-
WAVE
GENERATOR
I
2
C SERIAL
INTERFACE
PRESCALER
ADDR
P0
P1
P2
P3
X
LO/
HIZ
J0
J1
A0
A1
A2
WC
X
OE
J2
J3
V
CC
V
CC
SCL
SDA
DITHER RATE
DITHER %
EEPROM
WRITE EE
COMMAND
OUT
I
2
C
ADDRESS
BITS
PRESCALER SETTING
EEPROM
WRITE
CONTROL
CONTROL REGISTERS
fMOD
f
OSC
f
MOSC
f
MOSC
fOUT
SYNCED
OUTPUT
BUFFER
OUTPUT CONFIGURATION
OUTPUT CONTROL
OE
PDN
GND
SPRD
S/W GATED OUTPUT
H/W GATED OUTPUT
DS1089L
Detailed Description
Master Oscillator
The internal master oscillator is capable of generating a
square wave with a 33.3MHz to 66.6MHz frequency
range. The master oscillator frequency (f
MOSC
) is factory
programmed, and is specified in the
Ordering Information
.
Prescaler
The user can program the prescaler divider to produce
an output frequency (f
OUT
) as low as 130kHz using bits
P0, P1, P2, and P3 in the PRESCALER register. The
output frequency can be calculated using Equation 1.
Any value programmed greater than 2
8
will be decod-
ed as 2
8
. See Table 1 for prescaler divider settings.
Equation 1
where x = P3, P2, P1, P0
Output Frequency Hz f
f
OSC
MOSC
x
2
(
)
=
BITS P3, P2,
P1, P0
2
x
=
f
OUT =
f
OSC
0000
0001
0010
0011
0100
0101
0110
0111
1000
1
2
4
8
16
32
64
128
256
f
MOSC
f
MOSC
/ 2
f
MOSC
/ 4
f
MOSC
/ 8
f
MOSC
/ 16
f
MOSC
/ 32
f
MOSC
/ 64
f
MOSC
/ 128
f
MOSC
/ 256
1111
256
f
MOSC
/ 256
Table 1. Prescaler Divider Settings
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1089LU-866+ | 功能描述:可编程振荡器 3.3V Center Spread Spctrm EconOscillatr RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
| DS1089LU-A29+ | 功能描述:可编程振荡器 3.3V Center Spread Spctrm EconOscillatr RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
| DS1089LU-A29+T | 功能描述:可编程振荡器 3.3V Center Spread Spctrm EconOscillatr RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
| DS1089LU-A29+TW | 功能描述:可编程振荡器 3.3V Center Spread Spctrm EconOscillatr RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
| DS1089LU-C29+ | 功能描述:可编程振荡器 3.3V Center Spread Spctrm EconOscillatr RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
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