CSP1027 datasheet(56/64 Pages) AGERE

56 / 64 page

CSP1027 Voice Band Codec for

Data Sheet

Cellular Handset and Modem Applications

December 1999

Lucent Technologies Inc.

11 Timing Characteristics and Requirements (continued)

11.1 Clock Generation

* OSCEN = 0 shown.

† CDIV0 = 2, CDIV1 = 1 configuration shown (see Table 8 on page 27).

‡ CDIV2 = 4 option shown (see Table 8 on page 27).

Figure 39. Clock Timing Diagram

* Device is fully static, t1 is tested at 500 ns.

Table 24. Timing Requirements for Input Clock

Abbreviated

Reference

Parameter

5.0 V

3.3 V

3.0 V

Unit

Min

Max

Min

Max

Min

Max

Clock In Period (high to high)

—*

Clock In Low Time (low to change)

—

Clock In High Time (high to change)

—

Table 25. Timing Characteristics for Output Clocks

Abbreviated

Reference

Parameter

5.0 V

3.3 V

3.0 V

Unit

Min

Max

Min

Max

Min

Max

Clock Out 1 Delay (valid to valid)

—

Clock Out 2 Delay (valid to valid)

—

CLK*

VIH–

VIL–

CKO1†

VOH–

VOL–

CKO2‡

VOH–

VOL–

5-7618 (F)

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