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参数资料
| 型号： | ICS841S012DKILFT |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC FREQ SYNTHESIZER 56VFQFN |
| 标准包装： | 1,000 |
| 系列： | HiPerClockS™, PCI Express® (PCIe) |
| 类型： | 时钟/频率合成器，多路复用器 |
| PLL： | 是 |
| 主要目的： | PCI Express（PCIe） |
| 输入： | LVCMOS，LVTTL，晶体 |
| 输出： | HCSL，LVCMOS，LVTTL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:12 |
| 差分 - 输入:输出： | 是/无 |
| 频率 - 最大： | 250MHz |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | -40°C ~ 85°C |
| 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) |
Crystal-to-0.7V Differential HCSL/
LVCMOS Frequency Synthesizer
ICS841S012I
DATA SHEET
NRND
ICS841S012BKI REVISION A NOVEMBER 10, 2009
1
2009 Integrated Device Technology, Inc.
GENERAL DESCRIPTION
The ICS841S012I is an optimized PCIe, sRIO and
Gigabit Ethernet Frequency Synthesizer and a
member of HiperClock s family of high perfor-
mance clock solutions from IDT. The ICS841S012I
uses a 25MHz parallel resonant crystal to gener-
ate 33.33MHz - 200MHz clock signals, replacing multiple
oscillator and fanout buffer solutions. The device supports
±0.25% center-spread, and -0.5% down- spread clocking with
two spread select pins (SSC[1:0]). The VCO operates at a fre-
quency of 2GHz. The device has three output banks: Bank A
with two HCSL outputs, 100MHz – 250MHz; Bank B with seven
33.33MHz – 200MHz LVCMOS/ LVTTL outputs; and Bank C
with one 33.33MHz – 200MHz LVCMOS/LVTTL output.
All Banks A, B and C have their own dedicated frequency
select pins and can be independently set for the frequencies
mentioned above. The low jitter character istic of the
ICS841S012I makes it an ideal clock source for PCIe, sRIO
and Gigabit Ethernet applications. Designed for networking and
industrial applications, the ICS841S012I can also drive the high-
speed clock inputs of communication processors, DSPs,
switches and bridges.
HiPerClockS
ICS
FEATURES
Two 0.7V differential HCSL outputs (Bank A), configurable for
PCIe (100MHz or 250MHz) and sRIO (100MHz or 125MHz)
clock signals
Eight LVCMOS/LVTTL outputs (Banks B/C),
18
Ω typical output impedance
Two REF_OUT LVCMOS/LVTTL clock outputs,
23
Ω typical output impedance
Selectable crystal oscillator interface, 25MHz, 18pF parallel
resonant crystal or one LVCMOS/LVTTL single-ended
reference clock input
Supports the following output frequencies:
HCSL Bank A: 100MHz, 125MHz, 200MHz and 250MHz
LVCMOS/LVTTL Bank B/C: 33.33MHz, 50MHz, 66.67MHz,
100MHz, 125MHz, 133.33MHz, 166.67MHz and 200MHz
VCO: 2GHz
Spread spectrum clock: ±0.25% center-spread (typical) and
-0.6% down-spread (typical)
PLL bypass and output enable
RMS period jitter: 20ps (typical), QB outputs
Full 3.3V supply mode
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
Not Recommended for New Designs
PIN ASSIGNMENT
15 16 17 18 19 20 21 22 23 24 25 26 27 28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
36
37
38
39
40
41
42
35
34
33
32
31
30
29
VDD
REF_OUT0
REF_OUT1
GND
REF_IN
VDD
REF_SEL
XTAL_IN
XTAL_OUT
BYPASS
REF_OE
nMR
VDDOC
QC
GND
QBC_OE
VDDA
VDD
GND
IREF
QA0
nQA0
QA1
nQA1
GND
SSC1
SSC0
F_SELB2
F_SELB1
F_SELB0
F_SELC2
F_SELC1
F_SELC0
F_SELA1
F_SELA0
QA_OE
V
DD
QB6
GND
QB5
V
DDOB
QB4
GND
QB3
V
DDOB
V
DDOB
QB2
GND
QB1
QB0
V
DDOB
48
49
50
51
52
53
54
55
56
47 46 45 44 43
ICS841S012I
56-Lead VFQFN
8mm x 8mm x 0.925mm
package body
K Package
Top View
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS841S012I | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:Crystal-to-0.7V Differential HCSL/LVCMOS Frequency Synthesizer |
| ICS841S01BG | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:PCI EXPRESS⑩ CLOCK GENERATOR |
| ICS841S01BGLF | 功能描述:IC CLK GENERATOR PLL 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:HiPerClockS™, PCI Express® (PCIe) 标准包装:1 系列:- 类型:时钟/频率发生器，多路复用器 PLL:是 主要目的:存储器，RDRAM 输入:晶体 输出:LVCMOS 电路数:1 比率 - 输入:输出:1:2 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:Digi-Reel® 其它名称:296-6719-6 |
| ICS841S01BGLFT | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:PCI EXPRESS⑩ CLOCK GENERATOR |
| ICS841S01BGT | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:PCI EXPRESS⑩ CLOCK GENERATOR |
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