WM8259

Production Data

w

PD Rev 4.2 April 2007

8

INPUT VIDEO SAMPLING

Figure 1 Input Video Timing

Note:

1.

See Page 15 (Programmable VSMP Detect Circuit) for video sampling description.

Test Conditions

°C, MCLK = 18MHz unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

MCLK period

55.5

ns

MCLK high period

25

ns

MCLK low period

25

ns

VSMP period

300

ns

VSMP set-up time

6

ns

VSMP hold time

3

ns

Video level set-up time

10

ns

Video level hold time

3

ns

Reset level set-up time

10

ns

Reset level hold time

3

ns

Notes:

1.

2.

Parameters are measured at 50% of the rising/falling edge.

MCLK

VSMP

INPUT

VIDEO

t

PER

t

VSMPSU

t

VSMPH

t

VSU

t

VH

t

RSU

t

RH

t

MCLKL

t

MCLKH

t

VPER

t

RSU