參數(shù)資料
型號: MPC9894VFR2
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時(shí)鐘及定時(shí)
英文描述: 9894 SERIES, PLL BASED CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PBGA100
封裝: 11 X 11 MM, MAPBGA-100
文件頁數(shù): 14/28頁
文件大?。?/td> 362K
代理商: MPC9894VFR2
Advanced Clock Drivers Devices
Freescale Semiconductor
21
MPC9894
VDD = 3.3 V ±5%, VDDAB,CD,IC = 3.3 V ±5% or VDDAB,CD,IC = 2.5 V ±5%
MR
and PLL Lock
tLOCK
Maximum PLL Lock Time
10
s
treset_ref
MR
hold time on power up
2
ps
treset_pulse
MR
hold time
100
ns
1. AC characteristics are design targets and pending characterization.
2. AC characteristics apply for parallel output termination of 50
to VTT.
3. In bypass mode, the MPC9894 divides the input reference clock.
4. The input reference frequency must match the VCO lock range divided by the total feedback divider ratio: fREF =(fVCO ÷ M) N.
5. All Input Clock frequencies must be within this value to guarantee smooth phase transition on input clock switch.
6. VPP is the minimum differential input voltage swing required to maintain AC characteristics including tpd and device-to-device skew.
7. VPP, OK is the minimum differential input voltage swing required for a valid clock signal. Above VPP, OK the input will be detected as a good
clock (see IDCS).
8. VPP, NOK is the maximum differential input voltage swing for a guaranteed bad clock. Below VPP, NOK the input will be detected as a failed
clock (see IDCS).
9. VDDAB =VDDCD
10. Rate of period change is the maximum change of the clock output signal period T per cycle on a IDCS commanded switch.
11. Rate of period change is the maximum change of the clock output signal period T per cycle on a IDCS commanded switch.
12. –3 dB point of PLL transfer characteristics.
Table 39. AC Characteristics (TJ = –40°C to +110°C)(1) (2) (Continued)
Symbol
Characteristics
Min
Typ
Max
Unit
Condition
Z=50
RT = 50
VTT
DUT MPC9894
Z=50
Differential
Pulse Generator
Z=50
RT = 50
VTT
Figure 7. MPC9894 AC Test Reference (Media = 0)
Figure 8 . MPC9894 AC Test Reference (Media = 1)
Z=50
RT = 100
DUT MPC9894
Z=50
Differential
Pulse Generator
Z=50
RT = 50
VTT
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