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Transmit side ac characteristics, Ransmit, Ac c – Rainbow Electronics DS26504 User Manual

Page 125: Haracteristics, Table 20-5. transmit side ac characteristics

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DS26504 T1/E1/J1/64KCC BITS Element

125 of 128

20.5 Transmit Side AC Characteristics
Table 20-5. Transmit Side AC Characteristics

(

V

DD

= 3.3V

±5%, T

A

= -40°C to +85°C.) (Note 1) (

Figure 20-11

)

PARAMETER SYMBOL

MIN

TYP

MAX

UNITS

NOTES

488 ns 2
648 ns 3
15.6

ms

4

TCLK Period

t

CP

158.4 ns 5

t

CH

75 ns

TCLK Pulse Width

t

CL

75 ns

TCLK Rise and Fall Times

t

R

, t

F

25

ns

TX CLOCK Setup to TSER,
TS_8K_4

t

SU

20 ns

6,

7

Delay TX CLOCK to TS_8K_4

t

D2

50

ns

7,

8

Delay TCLK to PLL_OUT,
TX CLOCK

t

D3

20

ns

7,

9

Delay TCLKO to TPOSO and
TNEGO

t

DD

50

ns


Note 1:

The timing parameters in this table are guaranteed by design (GBD).

Note 2:

E1 mode.

Note 3:

T1 or J1 mode.

Note 4:

64KCC mode.

Note 5:

6312kHz mode.

Note 6:

TS_8K_4 in input mode.

Note 7:

TX CLOCK is an internal signal.

Note 8:

TS_8K_4 in output mode.

Note 9:

TX CLOCK is an internal signal that samples TSER and TS_8K_4 when TS_8K_4 is in input mode.