參數(shù)資料
型號: ICS87952AYI-147LFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時(shí)鐘及定時(shí)
英文描述: 87952 SERIES, PLL BASED CLOCK DRIVER, 11 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP32
封裝: 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP-32
文件頁數(shù): 1/12頁
文件大?。?/td> 136K
代理商: ICS87952AYI-147LFT
87952AYI-147
www.icst.com/products/hiperclocks.html
REV. B APRIL 10, 2006
1
Integrated
Circuit
Systems, Inc.
ICS87952I-147
LOW SKEW, 1-TO-11
LVCMOS / LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER
BLOCK DIAGRAM
PIN ASSIGNMENT
24 23 22 21 20 19 18 17
1
2
3
4
5
6
7
8
25
26
27
28
29
30
31
32
16
15
14
13
12
11
10
9
VDDO
QA2
QA1
GNDO
QA0
VDD
VDDA
nPLL_EN
VDDO
QB2
QB3
GNDO
QC0
QC1
VDDO
VCO_SEL
F_SELC
F_SELB
F_SELA
MR/nOE
REF_CLK
GNDI
FB_IN
ICS87952I-147
32-Lead LQFP
7mm x 7mm x 1.4mm package body
Y package
Top View
PHASE
DETECTOR
nPLL_EN
REF_CLK
FB_IN
VCO_SEL
F_SELA
F_SELB
F_SELC
MR/nOE
QA0
QA1
QA2
QA3
QA4
QB0
QB1
QB2
QB3
GENERAL DESCRIPTION
The ICS87952I-147 is a low voltage, low skew
LVCMOS/LVTTL Clock Generator and a mem-
ber of the HiPerClockS family of High Perfor-
mance Clock Solutions from ICS. With output
frequencies up to 180MHz, the ICS87952I-147
is targeted for high performance clock applications. Along
with a fully integrated PLL, the ICS87952I-147 contains fre-
quency configurable outputs and an external feedback input
for regenerating clocks with “zero delay”.
For test and system debug purposes, the nPLL_EN input
allows the PLL to be bypassed. When HIGH, the MR/nOE
input resets the internal dividers and forces the outputs to the
high impedance state.
The low impedance LVCMOS/LVTTL outputs of the
ICS87952I-147 are designed to drive terminated transmis-
sion lines. The effective fanout of each output can be doubled
by utilizing the ability of each output to drive two series termi-
nated transmission lines.
FEATURES
Fully integrated PLL
Eleven LVCMOS / LVTTL outputs,
7
Ω typical output impedance
LVCMOS / LVTTL REF_CLK input
Output frequency range up to 180MHz at V
DD = 3.3V ± 5%
VCO range: 240MHz - 480MHz
External feedback for “zero delay” clock regeneration
Cycle-to-cycle jitter: 100ps (maximum)
3.3V supply voltage
-40°C to 85°C ambient operating temperature
Available in both standard and lead-free RoHS compliant
packages
HiPerClockS
ICS
QC0
QC1
÷4/÷6
÷4/÷2
÷2/÷4
÷2
VCO
240 - 480MHz
LFP
GNDO
QB1
QB0
V
DDO
V
DDO
QA4
QA3
GNDO
0
1
0
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ICS87972DYI-147LFT 功能描述:IC CLK MULT/ZD BUFFER 52-LQFP 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™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)鐘/頻率合成器,扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS87972DYILF 功能描述:IC CLK MULT/ZD BUFFER 52-LQFP 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™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)鐘/頻率合成器,扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS87972DYILFT 功能描述:IC CLK MULT/ZD BUFFER 52-LQFP 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™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)鐘/頻率合成器,扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT
ICS87973DYI-147LF 功能描述:IC CLK MULT/ZD BUFFER 52TQFP 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™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時(shí)鐘/頻率合成器,扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP(8x8) 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT