T7503 Dual PCM Codec with Filters
Data Sheet
February 1998
Timing Characteristics
Table 14. Clock Section
(See Figures 5 and 6.)
Symbol
tMCHMCL1
tCDC
tMCH1MCH2
tMCL2MCL1
Parameter
Clock Pulse Width
Duty Cycle, MC
Clock Rise and
Fall Time
Test Conditions
—
—
—
Min
97
40
0
Typ
—
—
—
Max
—
60
15
Unit
ns
%
ns
Table 15. Transmit Section
(See Figures 5 and 6.)
Symbol
tMCHDV
tMCHDV1
tMCHDZ*
tFSHMCL
tMCLFSH
tFSLMCL
Parameter
Data Enabled on TS Entry
Data Delay from MC
Data Float on TS Exit
Frame-sync Hold Time
Frame-sync High Setup
Frame-sync Low Setup
Test Conditions
0 < C
LOAD
< 100 pF
0 < C
LOAD
< 100 pF
C
LOAD
= 0
—
—
—
Min
0
0
10
50
50
50
Typ
—
—
—
—
—
—
Max
60
60
100
—
—
—
Unit
ns
ns
ns
ns
ns
ns
* Timing parameter tMCHDZ is referenced to a high-impedance state.
Table 16. Receive Section
(See Figures 5 and 6.)
Symbol
tDVMCL
tMCLDV
Parameter
Receive Data Setup
Receive Data Hold
Test Conditions
—
—
Min
30
15
Typ
—
—
Max
—
—
Unit
ns
ns
10
Lucent Technologies Inc.
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