TDA4884 Datasheet, PDF (17/28 Pages) NXP Semiconductors – Advanced monitor video controller for OSD

Philips Semiconductors
Three gain control video pre-amplifier for OSD
Product specification
TDA4884
10
handbook, full pagewidth
signal
Vi(CC) =
7V
(dB)
6V
0
5V
4V
3V
2V
−10
MHA826
−20
1V
Vi(CC) = 0.7 V
−30
1
10
Solid lines: single channel.
Dotted lines: white signal.
Vi(CC) = 0.7 V
70 ¹⁰² 120
f (MHz)
10³
Fig.12 Typical characteristic of contrast control as a function of frequency.
handbook, full pagewidth
0
signal
(dB)
−10
−20
−30
−40
1
(1) Channel 1.
(2) Channel 2.
(3) Channel 3.
1997 Nov 26
MHA926
(1)
(2)
(3)
10
10²
f (MHz)
10³
Fig.13 Typical crosstalk: channel 1→ 2 and 3.
17