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| 型号： | 5V19EE904NLGI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | 5V SERIES, PLL BASED CLOCK DRIVER, 7 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), QCC32 |
| 封装： | 0.50 MM PITCH, ROHS COMPLIANT, VFQFPN-32 |
| 文件页数： | 1/29页 |
| 文件大小： | 292K |
| 代理商： | 5V19EE904NLGI |
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DATASHEET
EEPROM PROGRAMMABLE VCXO CLOCK GENERATOR
IDT5V19EE904
IDT EEPROM PROGRAMMABLE VCXO CLOCK GENERATOR
1
IDT5V19EE904
REV H 042211
Description
The IDT5V19EE904 is a programmable clock generator
intended for high performance data-communications,
telecommunications, consumer, and networking
applications. There are four internal PLLs, each individually
programmable, allowing for four unique non-integer-related
frequencies. The frequencies are generated from a single
reference clock. The reference clock can come from one of
the two redundant clock inputs. A glitchless automatic or
manual switchover function allows any one of the redundant
clocks to be selected during normal operation.
The IDT5V19EE904 is in-system, programmable and can
be programmed through the use of I2C interface. An
internal EEPROM allows the user to save and restore the
configuration of the device without having to reprogram it on
power-up.
Each of the four PLLs has an 7-bit reference divider and a
12-bit feedback divider. This allows the user to generate
four unique non-integer-related frequencies. The PLL loop
bandwidth is programmable to allow the user to tailor the
PLL response to the application. For instance, the user can
tune the PLL parameters to minimize jitter generation or to
maximize jitter attenuation. Spread spectrum generation
and/or fractional divides are allowed on two of the PLLs.
There are a total of six 8-bit output dividers.The outputs are
connected to the PLLs via a switch matrix. The switch
matrix allows the user to route the PLL outputs to any
output bank. This feature can be used to simplify and
optimize the board layout. In addition, each output's slew
rate and enable/disable function is programmable.
Features
Four internal PLLs
Internal non-volatile EEPROM
Fast (400kHz) mode I2C serial interface
Input frequency range: 1 MHz to 200 MHz
Output frequency range: 4.9 kHz to 200 MHz
Reference crystal input with programmable linear load
capacitance
– Crystal frequency range: 8 MHz to 50 MHz
(maximum crystal range is best effort)
Integrated VCXO
Four independently controlled VDDO (1.8V - 3.3V)
Each PLL has a 7-bit reference divider and a 12-bit
feedback-divider
8-bit output-divider blocks
Fractional division capability on one PLL
Two of the PLLs support spread spectrum generation
capability
I/O Standards:
– Outputs - 1.8 - 3.3 V LVTTL/ LVCMOS
– Inputs - 3.3 V LVTTL/ LVCMOS
Programmable slew rate control
Programmable loop bandwidth
Programmable output inversion to reduce bimodal jitter
Redundant clock inputs with glitchless auto and manual
switchover options
Individual output enable/disable
Power-down mode
3.3V core VDD
Available in VFQFPN package
-40 to +85 C Industrial Temp operation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 5V19EE904NLGI8 | 功能描述:时钟发生器及支持产品 EEPROM PROGRAMMABLE PLL AND VCXO RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| 5V1A-ADAPTER | 制造商:Distributed By MCM 功能描述:5V 1A Switching AC Power Supply - Micro USB |
| 5V1A-USB | 制造商:Gravitech 功能描述:USB WALL ADAPTER 5V 1A |
| 5V1BC | 制造商:SEMTECH_ELEC 制造商全称:SEMTECH ELECTRONICS LTD. 功能描述:Silicon Epitaxial Planar Zener Diodes |
| 5V1BCA | 制造商:SEMTECH_ELEC 制造商全称:SEMTECH ELECTRONICS LTD. 功能描述:Silicon Epitaxial Planar Zener Diodes |
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