TCM320AC36, TCM320AC37

VOICE-BAND AUDIO PROCESSORS (VBAP

™)

SLWS003C – MAY 1992 – REVISED APRIL – 1998

12

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

N–1

N

1

2

3

4

N–1

N

1

N+1

N

N–1

N–2

4

3

2

1

0

DCLKR

FSR

DIN

Receive Time Slot

tsu(FSR)

See Note A

th(FSR)

See Note B

th(DIN)

tsu(DIN)

80%

20%

80%

80%

N–2

See Note C

20%

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

4

N

N–1

N–2

3

2

1

N+1

N

N–1

N–2

4

3

2

1

0

DCLKX

FSX

DOUT

tsu(FSX)

Transmit Time Slot

th(FSX)

See Note B

tpd8

tpd7

tpd6

See Note A

80%

20%

80%

20%

80%

See Note C

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