TCM29C13A, TCM29C14A, TCM29C16A, TCM29C17A,

TCM129C13A, TC,129C14A, TCM129C16A, TCM129C17A

COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS030E – AUGUST 1989 – REVISED OCTOBER 1996

17

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

Time Slot

td(TSDX)

tpd10

FSX

DCLKX

CLKX

PCM OUT

12

3

4

5

67

8

Bit 1†

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Bit 8†

td(FSX)

tpd7

tpd9

tpd8

Figure 5. Transmit Timing (Variable-Data Rate)

FSR

DCLKR

CLKR

PCM IN

1

2

34

56

7

8

td(TSDR)

td(FSR)

tsu(PCM IN)

th(PCM IN)

t(SER)

Bit 1†

Bit 2

Bit 3

Bit 4

Bit 5

Bit 6

Bit 7

Bit 8†

Don’t Care

Figure 6. Receive Timing (Variable-Data Rate)

† Bit 1 = MSB = sign bit and is clocked in first on PCM IN or clocked out first on PCM OUT. Bit 8 = LSB = least significant bit and is clocked in

last on PCM IN or is clocked out last on PCM OUT.

NOTE A: All timing parameters are referenced to VIH and VIL except tpd8 and tpd9, which references the high-impedance state.