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DM3725CBC Datasheet(PDF) 240 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) 240 Page - Texas Instruments

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SWPS038-086
HDQ
t
B
t
BR
HDQ
First sampling time
Second sampling time
t
HW1
t
HW0
t
B
t
BR
SWPS038-122
SWPS038-087
HDQ
t
HW1
t
HW0
t
CYCH
SWPS038-088
HDQ
t
DW1
t
DW0
t
CYCD
SWPS038-089
HDQ
Break
0_(LSB)
1
6
7_(MSB)
t
RSPS
1
6
Command_byte_written
Data_byte_received
0_(LSB)
DM3730, DM3725
SPRS685D
– AUGUST 2010 – REVISED JULY 2011
www.ti.com
Table 6-102. HDQ Write Switching Characteristics
PARAMETER
DESCRIPTION
MIN
TYP
MAX
UNIT
tB
Break timing
190
μs
tBR
Break recovery time
40
μs
tCYCD
Write bit windows timing
190
μs
tDW1
Write one data valid after HDQ low
0.5
50
μs
tDW0
Write zero data hold after HDQ low
86
145
μs
Figure 6-55. HDQ Break and Break Recovery Timing
— HDQ Interface Writing to Slave
Figure 6-56. HDQ Break Detection
— HDQ Interface Reading Slave
Figure 6-57. HDQ Interface Bit Read Timing (Data)
Figure 6-58. HDQ Interface Bit Write Timing (Command/Address or Data)
Figure 6-59. HDQ
—Communication
6.6.6.2
HDQ/1-Wire
—1-Wire Mode
Table 6-103 and Table 6-104 assume testing over the recommended operating conditions and electrical
characteristic conditions below (see Figure 6-60 through Figure 6-63).
240
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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