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參數(shù)資料
| 型號： | ICS873991AY-147LF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | LOW VOLTAGE, LVCMOS/LVPECL-TO LVPECL/ECL CLOCK GENERATOR |
| 中文描述： | 873991 SERIES, LOW SKEW CLOCK DRIVER, 13 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP52 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BCC, LQFP-52 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 292K |
| 代理商： | ICS873991AY-147LF |
LOW VOLTAGE, LVCMOS/LVPECL-TO LVPECL/ECL
CLOCK GENERATOR
G
ENERAL
D
ESCRIPTION
The ICS873991-147 is a low voltage, low skew, 3.3V
LVPECL or ECL Clock Generator and a member of
the HiPerClockS family of High Performance
Clock Solutions from IDT. The ICS873991-147 has
two selectable clock inputs. The PCLK, nPCLK pair
can accept an LVPECL input and the REF_CLK pin can accept
a LVCMOS or LVTTL input. This device has a fully integrated
PLL along with frequency configurable outputs. An external
feedback input and output regenerates clocks with “zero de-
lay”.
ICS 873991-147
IDT
/ ICS
LVPECL/ECL CLOCK GENERATOR
1
ICS873991AY-147 REV. A AUGUST 10, 2007
PRELIMINARY
The four independent banks of outputs each have their own
output dividers, which allow the device to generate a multitude
of different bank frequency ratios and output-to-input frequency
ratios. The output frequency range is 25MHz to 500MHz and
the input frequency range is 6.25MHz to 125MHz. The PLL_SEL
input can be used to bypass the PLL for test and system debug
purposes. In bypass mode, the input clock is routed around the
PLL and into the internal output dividers.
The ICS873991-147 also has a SYNC output which can be
used for system synchronization purposes. It monitors Bank A
and Bank C outputs for coincident rising edges and signals a
pulse per the timing diagrams in this data sheet. This feature is
used primarily in applications where Bank A and Bank C are
running at different frequencies, and is particularly useful when
they are running at non-integer multiples of each other.
Example Applications:
1. Line Card Multiplier: Multiply 19.44MHz from a back-plane
to 77.76MHz on the line card ASIC and Serdes.
2. Zero Delay Buffer: Fan out up to thirteen 100MHz copies
from a reference clock to multiple processing units on an
embedded system.
HiPerClockS
ICS
F
EATURES
Fourteen differential 3.3V LVPECL/ECL outputs
Selectable differential LVPECL or REF_CLK inputs
PCLK, nPCLK can accept the following input levels:
LVPECL, CML, SSTL
REF_CLK accepts the following input levels:
LVCMOS, LVTTL
Input clock frequency range: 6.25MHz to 125MHz
Maximum output frequency: 500MHz
VCO range: 200MHz to 1GHz
Output skew: 70ps (typical)
Cycle-to-cyle jitter: 35ps (typical)
LVPECL mode operating voltage supply range:
V
CC
= 3.135V to 3.465V, V
EE
= 0V
ECL mode operating voltage supply range:
V
CC
= 0V, V
EE
= -3.465V to -3.135V
0°C to 70°C ambient operating temperature
Available in lead-free (RoHS 6) package
Industrial temperature available upon request
P
IN
A
SSIGNMENT
F
V
E
M
P
R
F
F
F
R
P
n
V
C
E
n
nQB3
QB3
V
CCO
nQA0
QA0
nQA1
QA1
nQA2
QA2
nQA3
QA3
SYNC_SEL
VCO_SEL
40
41
42
43
44
45
46
47
48
49
50
51
52
1 2 3 4 5 6 7 8 9 10 11 12 13
26
25
24
23
22
21
20
19
18
17
16
15
14
39 38 37 36 35 34 33 32 31 30 29 28 27
QC1
nQC1
QC0
nQC0
V
CCO
QD1
nQD1
QD0
nQD0
V
CCO
QFB
nQFB
V
CCA
Q
n
F
Q
n
F
Q
n
V
C
Q
n
F
ICS873991-147
52-Lead LQFP
10mm x 10mm x 1.4mm
package body
Y package
Top View
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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| ICS873991AY-147LFT | 功能描述:IC CLK GEN LV ECL LVPECL 52-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™ 標準包裝: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） 供應商設備封裝:28-SOIC 包裝:管件 |
| ICS873991AYLF | 功能描述:IC CLK GEN LV LVPECL/ECL 52-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™ 標準包裝:2,000 系列:- 類型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/無 頻率 - 最大:1GHz 除法器/乘法器:是/無 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-LSSOP（0.175"，4.40mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:NJW1504V-TE1-NDNJW1504V-TE1TR |
| ICS873991AYLFT | 功能描述:IC CLK GEN LV LVPECL 52-LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™ 標準包裝:1,000 系列:- 類型:時鐘/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 供應商設備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
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