32 x 16 Nonblocking Video Crosspoint Switch

with On-Screen Display Insertion and I/O Buffers

______________________________________________________________________________________

11

SWITCHING CHARACTERISTICS

offset voltage. Gain is specified for IN_ and OSDFILL_ signal paths.

Note 2: Logic level characteristics apply to the following pins: DIN, DOUT, SCLK, CE, UPDATE, RESET, A3–A0, MODE, AOUT, and

OSDKEY_.

ing the switch matrix.

Note 4: Input test signal: 3.58MHz sine wave of amplitude 40IRE superimposed on a linear ramp (0 to 100IRE). IRE is a unit of

video-signal amplitude developed by the International Radio Engineers: 140IRE = 1.0V.

Note 5: All devices are 100% production tested at +25°C. Specifications over temperature limits are guaranteed by design.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Delay: UPDATE to Video Out

200

450

ns

Delay: UPDATE to AOUT

MODE = 0, time to AOUT = low after

UPDATE = low

30

200

ns

40

Delay: OSDKEY_ to Output

60

ns

Delay: SCLK to DOUT Valid

Logic state change in DOUT on active

SCLK edge

30

200

ns

Delay: Output Disable

300

800

ns

Delay: Output Enable

Output disabled, 1k

Ω pulldown to AGND,

200

800

ns

Setup: CE to SCLK

100

ns

Setup: DIN to SCLK

100

ns

Hold Time: SCLK to DIN

100

ns

Minimum High Time: SCLK

100

ns

Minimum Low Time: SCLK

100

ns

Minimum Low Time: UPDATE

100

ns

Setup Time: UPDATE to SCLK

Rising edge of UPDATE to falling edge of

SCLK

100

ns

Hold Time: SCLK to UPDATE

Falling edge of SCLK to falling edge of

UPDATE

100

ns

Setup Time: MODE to SCLK

Minimum time from clock edge to MODE

with valid data clocking

100

ns

Hold Time: MODE to SCLK

Minimum time from clock edge to MODE

with valid data clocking

100

ns

Minimum Low Time: RESET

300

ns

Delay: RESET

10k

Ω pulldown to AGND

600

ns