參數(shù)資料
型號(hào): ICS843020AY-01LFT
廠商: IDT, Integrated Device Technology Inc
文件頁(yè)數(shù): 1/21頁(yè)
文件大小: 0K
描述: IC SYNTHESIZER LVPECL 32-LQFP
標(biāo)準(zhǔn)包裝: 1,000
系列: HiPerClockS™, FemtoClock™
類(lèi)型: 頻率合成器
PLL: 帶旁路
輸入: 晶體
輸出: LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無(wú)/是
頻率 - 最大: 680MHz
除法器/乘法器: 是/無(wú)
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 32-LQFP
供應(yīng)商設(shè)備封裝: 32-TQFP(7x7)
包裝: 帶卷 (TR)
其它名稱: 843020AY-01LFT
843020AY-01
www.idt.com
REV. C JULY 26, 2010
1
ICS843020-01
FEMTOCLOCKS 680MHZ, CRYSTAL-TO-
3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
GENERAL DESCRIPTION
The ICS843020-01 is a general purpose, dual output
Crystal-to-3.3V Differential LVPECL High Frequency
Synthesizer. The ICS843020-01 is based on I
DT’s 3rd
generation VCO technology and is capable of sub-1ps RMS
Phase Jitter performance, making it ideal for use in 10
Gigabit Ethernet, 10 Gigabit Fibre Channel, SONET and
Serial ATA applications.
The ICS843020-01 is a highly flexible programmable
synthesizer capable of generating output frequencies over a
range of 70MHz to 680MHz. The output frequency can be
programmed in small step sizes as low as 250kHz when
using a 16MHzcrystal,
÷8 input divider, and output divider =
÷8.
BLOCK DIAGRAM
PIN ASSIGNMENT
FEATURES
Dual differential 3.3V LVPECL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
Output frequency range: 70MHz to 680MHz
Crystal input frequency range: 12MHz to 32MHz
VCO range: 560MHz to 680MHz
Parallel or serial interface for programming feedback
and output dividers
Input P_DIV under parallel load control
RMS phase jitter at 156.25MHz (1.875MHz to 20MHz):
0.49ps (typical), P_DIV =
÷1
3.3V supply voltage
0°C to 70°C ambient operating temperature
Lead-Free package fully RoHS compliant
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
XTAL_OUT
TEST_CLK
XTAL_SEL
VCCA
S_LOAD
S_DATA
S_CLOCK
MR
M5
M6
M7
M8
N0
N1
P_DIV
VEE
V
EE
nFOUT0
FOUT0
V
CCO
nFOUT1
FOUT1
V
CC
TEST
XTAL_IN
nP_LOAD
VCO_SEL
M0
M1
M2
M3
M4
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y Package
Top View
ICS843020-01
OSC
VCO_SEL
XTAL_SEL
TEST_CLK
XTAL_IN
XTAL_OUT
P_DIV
S_LOAD
S_DATA
S_CLOCK
nP_LOAD
M0:M8
N0:N1
VCO
PLL
FOUT0
nFOUT0
FOUT1
nFOUT1
TEST
CONFIGURATION
INTERFACE
LOGIC
÷ M
0
1
0
1
PHASE DETECTOR
MR
÷ 1
÷ 2
÷ 4
÷ 8
0
÷8
Float
÷1 (default)
1
÷4
÷N
÷ P
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