October 1994

14

Philips Semiconductors

Preliminary specification

YUV picture improvement processor based

on histogram modification

TDA9170

Notes

1. Input amplitude values greater than the minimum specified range are still processed. However, the gain will slowly

saturate. Amplitudes up to +4 dB are permitted without significant clipping.

2. This select is valid provided the sleep mode bit is not set.

3. This control is valid provided the sleep mode bit is not set.

minimum window start

−

10

−

lines

maximum window start

−

100

−

lines

minimum window stop

−

121

−

lines

maximum window stop

−

271

−

lines

Default window select DWS; (pin 1): note 2

voltage input level for window

by SC blanking

−

−

1.5

V

voltage input level for default

window

3.5

−

5.5

V

input bias current

−

−

10

µA

Sandcastle input SC; (pin 10)

voltage input level

no blanking; no clamp

−

0

1.0

V

with blanking; no clamp

1.2

1.5

1.8

V

with blanking and clamp

3.1

3.5

3.9

V

input sync width

no vertical sync

−

−

15

µs

with vertical sync

35

−

−

µs

internal CLP pulse width

difference

−

−100

−

ns

input voltage level

A0 = 0

−

−

1.5

V

A1 = 1

3.5

−

5.5

V

input bias current

−

−

0.1

µA

input voltage level

−

−

0.5

V

Overall output performance

delay from input to output of

YUV

transparent

−

50

100

ns

delay of matching YUV

transparent

−

10

20

ns

α

w(YUV)

crosstalk from window

any channel

−

−

−60

dB

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT