參數(shù)資料
型號(hào)： ICS843034AY-01T
廠商： SPECTRUM CONTROL INC
元件分類： 時(shí)鐘產(chǎn)生/分配
英文描述： 640 MHz, OTHER CLOCK GENERATOR, PQFP48
封裝： 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBC, LQFP-48
文件頁數(shù)： 1/22頁
文件大?。?/td> 292K
代理商： ICS843034AY-01T
843034AY-01
www.icst.com/products/hiperclocks.html
REV. C NOVEMBER 28, 2005
1
Integrated
Circuit
Systems, Inc.
ICS843034-01
FEMTOCLOCKS
MULTI-RATE LVPECL FREQUENCY SYNTHESIZER
PRELIMINARY
GENERAL DESCRIPTION
The ICS843034-01 is a general purpose, low
phase noise LVPECL synthesizer which can
generate frequencies for a wide variety of
applications. The ICS843034-01 has a 4:1
input Multiplexer from which the following
inputs can be selected: 1 differential input, 1
single-ended input, or one of two crystal oscillators,
thus making the device ideal for frequency translation or
generation. Each differential LVPECL output pair has an
output divider which can be independently set so that two
different frequencies can be generated. Additionally, each
LVPECL output pair has a dedicated power supply pin so
the outputs can run at 3.3V or 2.5V. The ICS843034-01
also supplies a buffered copy of the reference clock or
crystal frequency on the single-ended REF_CLK pin which
can be enabled or disabled (disabled by default). The output
frequency can be programmed using either a serial or
parallel programming interface.
The ICS843034-01 has excellent <1ps phase jitter
performance over the 637kHz - 5MHz integration range, thus
making it suitable for use in Fibre Channel, SONET, and
Ethernet/1Gb Ethernet applications.
Example applications include systems which must support
both FEC and non FEC rates. In 10Gb Fibre Channel, for
example, you can use a 25.5MHz crystal to generate a
159.375MHz reference clock, and then switch to a
20.544MHz crystal to generate 164.355MHz for 66/64 FEC.
Other applications could include supporting both Ethernet
frequencies and SONET frequencies in an application. When
Ethernet frequencies are needed, a 25MHz crystal can be
used and when SONET frequencies are needed, the input
MUX can be switched to select a 38.88MHz Crystal.
FEATURES
Dual differential 3.3V LVPECL outputs which can be set
independently for either 3.3V or 2.5V
4:1 Input Mux:
1 differential input
1 single-ended input
2 crystal oscillator interfaces
CLK, nCLK pair can accept the following differential
input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
TEST_CLK accepts LVCMOS or LVTTL input levels
Output frequency range: 30.625MHz to 640MHz
Crystal input frequency range: 12MHz to 40MHz
VCO range: 490MHz to 640MHz
Parallel or serial interface for programming feedback divider
and output dividers
RMS phase jitter at 106.25MHz, using a 25.5MHz crystal
(637kHz to 5MHz): 0.61ps (typical)
Supply voltage modes:
LVPECL outputs (core/outputs):
3.3V/3.3V
3.3V/2.5V
REF_CLK output (core/outputs):
3.3V/3.3V
3.3V/2.5V
0°C to 70°C ambient operating temperature
Available in both standard and lead-free RoHS-compliant
packages
HiPerClockS
ICS
PIN ASSIGNMENT
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
M8
NB0
NB1
NB2
OE_REF
OE_A
OE_B
VCC
NA0
NA1
NA2
VEE
XTAL_OUT1
XTAL_IN1
XTAL_OUT0
XTAL_IN0
TEST_CLK
SEL1
SEL0
VCCA
S_LOAD
S_DATA
S_CLOCK
MR
CLK
nCLK
nP_LOAD
VCO_SEL
M0
M1
M2
M3
M4
M5
M6
M7
ICS843034-01
48-Pin LQFP
7mm x 7mm x 1.4mm
package body
Y Package
Top View
V
EE
P_DIV
V
CCO
_
REF
REF_CLK
V
CCO
_
B
nFOUTB0
FOUTB0
V
CCO
_
A
nFOUT
A0
FOUT
A
0
V
CC
TEST
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
相關(guān)PDF資料
PDF描述
ICS843034AYT 750 MHz, OTHER CLOCK GENERATOR, PQFP48
ICS843034AYLF 750 MHz, OTHER CLOCK GENERATOR, PQFP48
ICS843081AGI-01T 700 MHz, OTHER CLOCK GENERATOR, PDSO8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS843034AYL 制造商:ICS 制造商全稱:ICS 功能描述:MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER
ICS843034AYLF 功能描述:IC CLK SYNTHESIZER LVPECL 48LQFP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
ICS843034AYLFT 功能描述:IC CLK SYNTHESIZER LVPECL 48LQFP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
ICS843034AYT 制造商:ICS 制造商全稱:ICS 功能描述:MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER
ICS843051 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
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