參數(shù)資料
型號: ICS87946AYI-147LFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 11/14頁
文件大?。?/td> 0K
描述: IC CLOCK GENERATOR 32-LQFP
標(biāo)準(zhǔn)包裝: 1,000
系列: HiPerClockS™
類型: 時鐘發(fā)生器
PLL:
輸入: LVCMOS,LVTTL
輸出: LVCMOS,LVTTL
電路數(shù): 1
比率 - 輸入:輸出: 1:10
差分 - 輸入:輸出: 是/無
頻率 - 最大: 250MHz
除法器/乘法器: 是/無
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 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: 87946AYI-147LFT
ICS87946AYI-147 REVISION A AUGUST 7, 2009
6
2009 Integrated Device Technology, Inc.
ICS87946I-147 Data Sheet
LOW SKEW, ÷1, ÷2 LVCMOS/LVTTL CLOCK GENERATOR
AC Electrical Characteristics
Table 5A. AC Characteristics, VDD = VDDA = VDDB = VDDC = 3.3V ± 0.3V, TA = -40°C to 85°C
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions.
NOTE 1: Measured from VDD/2 of the input to VDDX/2 of the output.
NOTE 2: Defined as skew within a bank of outputs at the same supply voltage and with equal load conditions.
NOTE 3: Defined as skew across banks of outputs at the same supply voltage and with equal load conditions. Measured at VDDX/2.
NOTE 4: Defined as skew across banks of outputs operating at different frequencies with the same supply voltage and equal load conditions.
NOTE 5: Defined as skew between outputs on different devices operating at the same supply voltage and with equal load conditions. Using the
same type of inputs on each device, the outputs are measured at VDDX/2.
NOTE 6: These parameters are guaranteed by characterization. Not tested in production.
NOTE 7: This parameter is defined in accordance with JEDEC Standard 65.
Symbol
Parameter
Test Conditions
Minimum
Typical
Maximum
Units
fMAX
Output Frequency
250
MHz
tPD
Propagation Delay;
NOTE 1
≤ 250MHz
2
5
ns
tsk(b)
Bank Skew, NOTE 2, 7
Measured on rising edge at VDDX/2
30
ps
tsk(o)
Output Skew; NOTE 3, 7
Measured on rising edge at VDDX/2
175
ps
tsk(w)
Multiple Frequency Skew;
NOTE 4, 7
Measured on rising edge at VDDX/2
275
ps
tsk(pp)
Part-to-Part Skew;
NOTE 5, 7
Measured on rising edge at VDDX/2
850
ps
tR / tF
Output Rise/Fall Time;
NOTE 6
20% to 80%
400
950
ps
tPW
Output Pulse Width
tPERIOD/2 - 1
tPERIOD/2
tPERIOD/2 + 1
%
tEN
Output Enable Time;
NOTE 6
= 10MHz
3
ns
tDIS
Output Disable Time;
NOTE 6
= 10MHz
3
ns
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