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參數(shù)資料
| 型號： | ADV7850KBCZ-5 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 17/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO DECODER 3D 425CSPBGA |
| 標準包裝： | 1 |
| 類型： | HDMI，接收器 |
| 應用： | HDTV，投影儀，機頂盒 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 425-LFBGA，CSBGA |
| 供應商設備封裝： | 425-CSPBGA（19x19） |
| 包裝： | 托盤 |
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ADV7850
Data Sheet
Rev. 0 | Page 24 of 32
POWER SUPPLY SEQUENCING
POWER-UP SEQUENCE
The recommended power-up sequence of the ADV7850 is as
follows:
1.
3.3 V supplies
2.
1.8 V supplies
Figure 10. Recommended Power-Up Sequence
Notes
RESET should be held low while the supplies are being
powered up.
3.3 V supplies should be powered up first.
1.8 V supplies should be powered up last.
The ADV7850 can alternatively be powered up by asserting all
supplies simultaneously.
In this case, care must be taken to ensure that a lower rated supply
does not go above a higher rated supply level as the supplies are
being established.
POWER-DOWN SEQUENCE
The ADV7850 supplies can be powered down simultaneously as
long as the 3.3 V supply domain does not go below the 1.8 V
supply domain.
POWER SUPPLY REQUIREMENTS
Table 8 shows the current rating recommendations for power
supply design. These values should be used when designing a
power supply section to ensure that an adequate current can be
supplied to the ADV7850.
Table 8. Current Rating Recommendation for Power Supply
Design
Parameter
Rating
IDVDD
600 mA
ICVDD
450 mA
ITVDD
400 mA
IAVDD
350 mA
IAC_AVDD
150 mA
ITX_PVDD
100 mA
IPVDD
60 mA
ITX_VDD33
50 mA
ISDVDD
50 mA
ITX_AVDD
50 mA
IDVDDIO
20 mA
ISAVDD
20 mA
07758
-012
3.3V SUPPLIES
POWER-UP
POW
E
R
S
U
PP
L
Y
(V
)
3.3V SUPPLIES
1.8V SUPPLIES
POWER-UP
3.3V
1.8V
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