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参数资料
| 型号： | 5P49EE602NLGI |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 22/26页 |
| 文件大小： | 0K |
| 描述： | IC CLOCK GENERATOR 24QFN |
| 标准包装： | 75 |
| 系列： | VersaClock™ |
| 类型： | 时钟发生器 |
| PLL： | 带旁路 |
| 输入： | LVTTL，晶体 |
| 输出： | LVCMOS，LVTTL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:5 |
| 差分 - 输入:输出： | 无/是 |
| 频率 - 最大： | 120MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 1.71 V ~ 1.89 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN（4x4） |
| 包装： | 管件 |
| 其它名称： | 800-2525 |
IDT5P49EE602
VERSACLOCK LOW POWER CLOCK GENERATOR
EEPROM CLOCK GENERATOR
IDT VERSACLOCK LOW POWER CLOCK GENERATOR
5
IDT5P49EE602
REV L 072512
PLL Features and Descriptions
PLL Block Diagram
Crystal Input (XIN/REF)
The crystal oscillators should be fundamental mode quartz
crystals; overtone crystals are not suitable. Crystal
frequency should be specified for parallel resonance with
50
Ω maximum equivalent series resonance. 0
ONXTALB=0 bit needs to be set for XIN/REF.
Crystal Load Capacitors
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 must be connected from each of the pins X1 and
X2 to ground.
The crystal cpacitors are internal to the device and have an
effective value of 4pF.
Reference Pre-Divider, Reference Divider,
Feedback-Divider and Post-Divider
Each PLL incorporates an 8-bit reference-scaler and a
11-bit feedback divider which allows the user to generate
four unique non-integer-related frequencies. PLLA and
PLLD each have a feedback pre-divider that provides
additional multiplication for kHz reference clock
applications. Each output divider supports 8-bit post-divider.
The following equation governs how the output frequency is
calculated.
Where FIN is the reference frequency, XDIV is the feedback
pre-divider value, M is the feedback-divider value, D is the
reference divider value, ODIV is the total post-divider value,
and FOUT is the resulting output frequency. Programming
any of the dividers may cause glitches on the outputs.
Ref-Divider
(D) Values
Feedback
Pre-Divider
(XDIV)
Values
Feedback
(M) Values
Programmable
Loop Bandwidth
Spread Spectrum
Generation Capability
PLLA
1 - 255
1 or 4
6 - 2047
Yes
No
PLLB
1 - 255
4
6 - 2047
Yes
PLLC
1 - 255
1 or 8 bit divide
6 - 2047
Yes
No
PLLD
1 - 255
1 or 4
6 - 2047
Yes
No
VCO
D
XDIV
M
(
)
F
OUT =
XDIV*M
D
F
IN *
ODIV
(Eq. 2)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 5P49EE602NLGI8 | 功能描述:时钟发生器及支持产品 VERSACLOCK LOW POWER PLL 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 |
| 5P49EE605NLGI | 功能描述:锁相环 - PLL PROGRAMMABLE PLL LOW POWER RoHS:否 制造商:Silicon Labs 类型:PLL Clock Multiplier 电路数量:1 最大输入频率:710 MHz 最小输入频率:0.002 MHz 输出频率范围:0.002 MHz to 808 MHz 电源电压-最大:3.63 V 电源电压-最小:1.71 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:QFN-36 封装:Tray |
| 5P49EE605NLGI8 | 制造商:Integrated Device Technology Inc 功能描述:VERSACLOCK LOW POWER CLOCK GENERATOR 制造商:Integrated Device Technology Inc 功能描述:24 QFN (GREEN) - Tape and Reel |
| 5P49EE801NDGI | 功能描述:时钟发生器及支持产品 VERSACLOCK LOW POWER PLL 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 |
| 5P49EE801NDGI8 | 功能描述:时钟发生器及支持产品 VERSACLOCK LOW POWER PLL 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 |
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