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參數資料
| 型號： | CDCE401 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Oscillator IC with Electronic Calibration |
| 中文描述： | 具有電子校準的振蕩器 IC |
| 文件頁數： | 1/19頁 |
| 文件大小： | 246K |
| 代理商： | CDCE401 |
www.ti.com
FEATURES
Oscillator Gain Stage Implemented
One LVCMOS Frequency Output
Frequency Range of Oscillator Gain Stage =
20 MHz–100 MHz
Frequency Range of LVCMOS Output = 0.625
MHz–100 MHz
Electronic Trimming of Oscillator Using
Capacitance Arrays
Programmable Post Dividers x, x/2, x/4, x/8,
x/16, x/32
Nonvolatile Storage of Settings Using
EEPROM Technology
Easy One-Wire
In-Circuit Programming
Allows
Programming and Trimming of Oscillator After
Manufacturing
EEPROM Programming Without the Need to
Apply High Voltage to the Device
Available as Die
Small Form Factor From Less Than 1 mm × 1
mm, Allowing the Smallest Form Factor
Available for Today’s and Next-Generation
Oscillators
Industrial Temperature Range –40°C to 85°C
Wide VDD Range: 2.25 V up to 3.3 V
ESD Protection Exceeds JESD22
–
>2000-V Human-Body Model (A114-B)
–
>200-V Machine Model (A115_A)
–
>500-V Charged-Device Model (C101-B.01)
EN
XIN
XOUT
VSS
VDD
FOUT
SDATA
1
2
3
4
5
6
8
′
1 mm
1 mm
M0018-03
DESCRIPTION
The CDCE401 is designed to achieve today’s demanding challenges for crystal oscillator modules. The small
form factor of the unpackaged die or the QFN package reduces the space consumption of the device to the
technical minimum level of today’s silicon technology.
CDCE401
SCAS820–JUNE 2006
OSCILLATOR IC WITH ELECTRONIC CALIBRATION
Die Terminal Assignment
(Top View = Bond Pad View)
The on-die trimming capacitance allows frequency trimming of the oscillator module after the manufacturing
process. Therefore, by doing a post-manufacturing programming, crystal manufacturing tolerances can be
trimmed out.
During power up or with each enabling, the CDCE401 oscillator start-up circuit switches off all oscillator
capacitors (CXI, CXO, CBASE) to maximize negative impedance during start-up. After a certain time
(1/XTAL-frequency × 2
17
~ 1.311 ms–6.554 ms), the capacitances are connected to tune to the trimmed
frequency range.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 2006, Texas Instruments Incorporated
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相關代理商/技術參數 |
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|---|---|
| CDCE401YS | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OSCILLATOR IC WITH ELECTRONIC CALIBRATION |
| CDCE421 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator |
| CDCE421A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Fully-Integrated, Wide Range, Low-Jitter Crystal Oscillator Clock Generator |
| CDCE421AEVM | 功能描述:時鐘和定時器開發工具 CDCE421A Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
| CDCE421ARGER | 功能描述:時鐘合成器/抖動清除器 Fully Int Lo-Jitter Crystal Osc Cl Gen RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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