AC4830xC-C Data Book
Chapter 3. Chip Data and Timing
Revision 1.0
41
March 2000
Figure
3-5: PCM Port Receive Timing Requirements (using Codec)
67
66
PCMIN
65
P C M F S
P C M C L K
68
64
64
61
63
62
3.3.2.2 PCM Port Transmit Timing (using Codec)
Table
3-9: PCM Port Transmit Switching Characteristics (using Codec)
Parameter (units ns)
Min
Max
(71) Disable time, PCMOUT after PCMCLK rising*
-1
4
(72) Enable time, PCMOUT after PCMCLK rising*
0
7
(73) Hold time, PCMOUT valid after PCMCLK rising
0
7
* Values are derived from characterization data but not tested.
Table
3-10: PCM Port Transmit Timing Requirements (using Codec)
Parameter (units ns)
Min
Max
(61) Cycle time, PCM port clock
488
3
488
3
(64) Pulse duration, PCM port clock low/ high**
242
246
**
Values are ensured by design but not tested.
3
Applies to F(PCMCLK) = 2.048 MHz only
Содержание AC4830 C-C Series
Страница 2: ......
Страница 12: ...AudioCodes Ltd AC4830xC C VoPP 10 Catalog Number LTRT 00060 Reader s Notes...
Страница 58: ...AudioCodes Ltd AC4830xC C VoPP 56 Catalog Number LTRT 00060 Figure 4 2 Interface Application Driving a Codec...
Страница 60: ...AudioCodes Ltd AC4830xC C VoPP 58 Catalog Number LTRT 00060 Reader s Notes...