CS9210 datasheet(32/39 Pages) NSC

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Electrical Specifications (Continued)

5.4

AC CHARACTERISTICS

The following tables list the AC characteristics including

output delays, input setup requirements, input hold

requirements and output float delays. The rising-clock-

edge reference level VREF, and other reference levels are

shown in Table 5-4.

Input or output signals must cross

these levels during testing.

Input setup and hold times are specified minimums that

define the smallest acceptable sampling window for which

a synchronous input signal must be stable for correct oper-

ation. All AC tests are at VDD = 2.75 to 3.05V (2.9V nomi-

nal), TC =0

oCto 70oC, C

L = 50 pF unless otherwise

specified.

Figure 5-1. Drive Level and Measurement Points for Switching Characteristics

Table 5-4. Drive Level and Measurement Points

for Switching Characteristics

Symbol

Voltage (V)

VREF

1.5

VIHD

2.4

VILD

0.4

CLK

OUTPUTS

INPUTS

VIHD

VILD

VREF

Valid Input

Valid Output n+1

Valid Output n

VREF

VILD

VIHD

Min

Max

Legend: A = Maximum Output Delay Specification

B = Minimum Output Delay Specification

C = Minimum Input Setup Specification

D = Minimum Input Hold Specification

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