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DM3725CBC Datasheet(PDF) 186 Page - Texas Instruments

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Part # DM3725CBC
Description  Digital Media Processors
PDF  280 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

DM3725CBC Datasheet(HTML) 186 Page - Texas Instruments

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A1
A1
X
Y
OFFSET
RecommendedLPDDRDevice
Orientation
Y
Y
OFFSET
LPDDR
Device
OMAP
DM3730, DM3725
SPRS685D
– AUGUST 2010 – REVISED JULY 2011
www.ti.com
Figure 6-19. DM37xx and LPDDR Device Placement
Table 6-16. Placement Specifications
NO.
PARAMETER
MIN
MAX
UNIT
NOTES
1
X
1440
Mils
See Notes(1), (2)
2
Y
1030
Mils
See Notes(1), (2)
3
Y Offset
525
Mils
See Notes(1),(2),(3)
4
LPDDR Keepout Region
See Note(4)
Clearance from non-LPDDR signal to LPDDR
5
4
w
See Note(5)
Keepout Region
(1) See Figure 6-17 for dimension definitions.
(2) Measurements from center of device to center of LPDDR device.
(3) For 16 bit memory systems it is recommended that Y Offset be as small as possible.
(4) LPDDR keepout region to encompass entire LPDDR routing area.
(5) Non-LPDDR signals allowed within LPDDR keepout region provided they are separated from LPDDR routing layers by a ground plane.
6.4.2.3
LPDDR Keep Out Region
The region of the PCB used for the LPDDR circuitry must be isolated from other signals. The LPDDR
keep out region is defined for this purpose and is shown in Figure 6-20. The size of this region varies with
the placement and LPDDR routing. Additional clearances required for the keep out region are shown in
Table 6-16.
186
Timing Requirements and Switching Characteristics
Copyright
© 2010–2011, Texas Instruments Incorporated
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Product Folder Link(s): DM3730 DM3725



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