參數(shù)資料
型號(hào): MPC96877VKR2
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 時(shí)鐘及定時(shí)
英文描述: 96877 SERIES, PLL BASED CLOCK DRIVER, 10 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA52
封裝: 4.50 X 7 MM, 0.65 MM PITCH, LEAD FREE, MO-225BA, MAPBGA-52
文件頁(yè)數(shù): 14/16頁(yè)
文件大小: 395K
代理商: MPC96877VKR2
Advanced Clock Drivers Devices
Freescale Semiconductor
7
MPC96877
1. There are two different terminations that are used with the following tests. The loadboard in Figure 3 is used to measure the input and
output differential-pair cross voltage only. The loadboard in Figure 4 is used to measure all other tests. For consistency, use 50 ohms equal
length cables with SMA connectors.
2. Static Phase offset does not include Jitter.
3. Period Jitter and Half-Period Jitter specifications are separate specifications that must be met independently of each other.
4. The Output Slew Rate is determined from the IBIS model into the load shown in Figure 2. It is measured single ended.
5. To eliminate the impact of input slew rates on static phase offset, the input slew rates of Reference Clock Input CK, CK and Feedback Clock
Input FBIN, FBIN are recommended to be nearly equal. The 2.5 V/ns slew rates are shown as a recommended target. Compliance with
these Nom values is not mandatory if it can be adequately demonstrated that alternative characteristics meet the requirements of the reg-
istered DDR2 DIMM application.
6. Static Phase offset does not include Jitter.
7. VOX is specified at DDR DRAM clock input or test load.
Table 7. Switching Characteristics over Recommended Free-Air Operating Temperature Range Unless Otherwise Noted
(see Notes)
Description
Parameter
Diagram
AVDD, VDDQ = 1.8 V ± 0.1 V
Unit
Min
Nom
Max
OE to any Y/Y
ten
8
ns
OE to any Y/Y
tdis
8
ns
Cycle-to-Cycle Period Jitter
tjit(cc+)
0
40
ps
tjit(cc–)
0
–40
ps
Static Phase Offset
t(
)
–50
50
ps
Dynamic Phase Offset
t(
)dyn
–50
50
ps
Output Clock Skew
tsk(o)
40
ps
Period Jitter
tjit(per)
–40
40
ps
Half -Period jitter
tjit(hper)
–50
50
ps
Output Enable
slr(i)
0.5
V/ns
Input Clock Slew Rate, Measured Single Ended
1
2.5
4
Output Clock Slew Rate, Measured Single Ended
slr(o)
1.5
2.5
3
V/ns
Output Differential-Pair Cross Voltage
VOX
(VDDQ/2) – 0.1
(VDDQ/2) + 0.1
V
SSC Modulation Frequency
30
33
kHz
SSC Clock Input Frequency Deviation
0
–0.5
PLL Loop Bandwidth (–3 dB from Unity Gain)
2
MHz
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