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| 型号： | ICS844003AGLFT |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 700 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| 封装： | 4.40 X 7.80 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-24 |
| 文件页数： | 1/16页 |
| 文件大小： | 645K |
| 代理商： | ICS844003AGLFT |
FEMTOCLOCKS CRYSTAL-TO-LVDS
FREQUENCY SYNTHESIZER
ICS844003
IDT / ICS LVDS FREQUENCY SYNTHESIZER
1
ICS844003AG REV A AUGUST 29, 2006
PRELIMINARY
GENERAL DESCRIPTION
The ICS844003 is a 3 differential output LVDS
Synthesizer designed to generate Ethernet reference
clock frequencies and is a member of the
HiPerClocks family of high performance clock
solutions from IDT. Using a 31.25MHz or
26.041666MHz, 18pF parallel resonant crystal, the following
frequencies can be generated based on the settings of four
frequency select pins (DIV_SEL[A1:A0], DIV_SEL[B1:B0]):
625MHz, 312.5MHz, 156.25MHz, and 125MHz. The ICS844003
has two output banks, Bank A with one differential LVDS output
pair and Bank B with two differential LVDS output pairs.
The two banks have their own dedicated frequency select
pins and can be independently set for the frequencies
mentioned above. The ICS844003 uses IDT’s 3rd generation
low phase noise VCO technology and can achieve 1ps or
lower typical rms phase jitter, easily meeting Ethernet jitter
requirements. The ICS844003 is packaged in a small 24-
pin TSSOP package.
FEATURES
Three LVDS outputs on two banks, A Bank with one LVDS
pair and B Bank with 2 LVDS output pairs
Using a 31.25MHz or 26.041666MHz crystal, the two output
banks can be independently set for 625MHz, 312.5MHz,
156.25MHz or 125MHz
Selectable crystal oscillator interface or LVCMOS/LVTTL
single-ended input
VCO range: 560MHz to 700MHz
RMS phase jitter @ 156.25MHz (1.875MHz - 20MHz):
0.63ps (typical)
3.3V output supply mode
0°C to 70°C ambient operating temperature
Available in both standard and lead-free RoHS-compliant
packages
HiPerClockS
ICS
0
1
0
1
Phase
Detector
VCO
0 = ÷20 (default)
1 = ÷24
0 0
÷1
0 1
÷2 (default)
1 0
÷4
1 1
÷5
0 0
÷1
0 1
÷2
1 0
÷4 (default)
1 1
÷5
FB_DIV
OSC
BLOCK DIAGRAM
OEA
DIV_SELA[1:0]
VCO_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
XTAL_SEL
FB_DIV
DIV_SELB[1:0]
MR
OEB
QA0
nQA0
QB0
nQB0
QB1
nQB1
Pulldown
Pullup
PIN ASSIGNMENT
ICS844003
24-Lead TSSOP
4.40mm x 7.8mm x 0.92mm
package body
G Package
Top View
DIV_SELB0
VCO_SEL
MR
VDDO_A
QA0
nQA0
OEB
OEA
FB_DIV
VDDA
VDD
DIV_SELA0
1
2
3
4
5
6
7
8
9
10
11
12
DIV_SELB1
VDDO_B
QB0
nQB0
QB1
nQB1
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
GND
DIV_SELA1
24
23
22
21
20
19
18
17
16
15
14
13
Pulldown
The Preliminary Information presented herein represents a product in pre-production. The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
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| ICS844003BGI-01LFT | 680 MHz, OTHER CLOCK GENERATOR, PDSO24 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS844003AKI-04LF | 功能描述:IC SYNTHESIZER 3LVDS 32VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:2,000 系列:- 类型:PLL 频率合成器 PLL:是 输入:晶体 输出:时钟 电路数:1 比率 - 输入:输出:1:1 差分 - 输入:输出:无/无 频率 - 最大:1GHz 除法器/乘法器:是/无 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-LSSOP（0.175"，4.40mm 宽） 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:NJW1504V-TE1-NDNJW1504V-TE1TR |
| ICS844003AKI-04LFT | 功能描述:IC SYNTHESIZER 3LVDS 32VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:1,000 系列:- 类型:时钟/频率合成器，扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP（8x8） 包装:带卷 (TR) 其它名称:844S012AKI-01LFT |
| ICS844003BG-01LF | 功能描述:IC SYNTHESIZER 3LVDS 24-ETSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:1,000 系列:- 类型:时钟/频率合成器，扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP（8x8） 包装:带卷 (TR) 其它名称:844S012AKI-01LFT |
| ICS844003BG-01LFT | 功能描述:IC SYNTHESIZER 3LVDS 24-ETSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:1,000 系列:- 类型:时钟/频率合成器，扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP（8x8） 包装:带卷 (TR) 其它名称:844S012AKI-01LFT |
| ICS844003BGI-01LF | 功能描述:IC SYNTHESIZER 3LVDS 24-ETSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:HiPerClockS™, FemtoClock™ 标准包装:2,000 系列:- 类型:PLL 频率合成器 PLL:是 输入:晶体 输出:时钟 电路数:1 比率 - 输入:输出:1:1 差分 - 输入:输出:无/无 频率 - 最大:1GHz 除法器/乘法器:是/无 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-LSSOP（0.175"，4.40mm 宽） 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:NJW1504V-TE1-NDNJW1504V-TE1TR |
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