TMS320DM368_17 Datasheet, PDF (113/208 Pages) Texas Instruments – Digital Media System-on-Chip (DMSoC)

TMS320DM368
www.ti.com
SPRS668C – APRIL 2010 – REVISED JUNE 2011
6.10.3.1.6 Bulk Bypass Capacitors
Bulk bypass capacitors are required for moderate speed bypassing of the DDR2/mDDR and other
circuitry. Table 6-28 contains the minimum numbers and capacitance required for the bulk bypass
capacitors. Note that this table only covers the bypass needs of the DMSoC and DDR2/mDDR interfaces.
Additional bulk bypass capacitance may be needed for other circuitry.
Table 6-28. Bulk Bypass Capacitors
No. Parameter
1 V_{DD18_DDR} Bulk Bypass Capacitor Count
2 V_{DD18_DDR} Bulk Bypass Total Capacitance
3 DDR#1 Bulk Bypass Capacitor Count
4 DDR#1 Bulk Bypass Total Capacitance
5 DDR#2 Bulk Bypass Capacitor Count
6 DDR#2 Bulk Bypass Total Capacitance
Min Max Unit
Notes
3
Devices See Note
(1)
30
uF
1
Devices See Note
(1)
22
uF
1
Devices See Notes
(1)_, (2)
22
uF
See Note
(2)
(1) These devices should be placed near the device they are bypassing, but preference should be given to the placement of the high-speed
(HS) bypass caps.
(2) Only used on dual-memory systems
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Peripheral Information and Electrical Specifications 113
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