TCM320AC36 Datasheet, PDF (12/23 Pages) Texas Instruments – VOICE-BAND AUDIO PROCESSORS VBAPE

TCM320AC36, TCM320AC37
VOICE-BAND AUDIO PROCESSORS (VBAP™)
SLWS003C – MAY 1992 – REVISED APRIL – 1998
PARAMETER MEASUREMENT INFORMATION
DCLKR
FSR
0
1
2
3
80%
20%
tsu(FSR)
Receive Time Slot
4
N–2
N–1
N _80% N+1
80%
20%
th(FSR)
See Note A
th(DIN)
See Note B
DIN N – 1
N
1
2
3
4
N–2
N–1
N
1
See Note C
tsu(DIN)
NOTES: A. This window is allowed for FSR high (tsu(FSR) max determined by data collision considerations).
B. This window is allowed for FSR low.
C. Transitions are measured at 50%.
Figure 3. Variable-Data Rate Mode, Receive Side Timing Diagram
DCLKX
0
1
80%
20%
2
3
80%
tsu(FSX)
Transmit Time Slot
4
N–2
N–1
N
N+1
80%
20%
th(FSX)
FSX
See Note A
tpd6
tpd7
See Note B
tpd8
DOUT
See Note C
1
2
3
4
N–2
N–1 N
NOTES: A. This window is allowed for FSX high.
B. This window is allowed for FSX low without data repetition.
C. Transitions are measured at 50%.
Figure 4. Variable-Data Rate Mode, Transmit Side Timing Diagram
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