TDA4886A Datasheet, PDF (37/52 Pages) NXP Semiconductors – 140 MHz video controller with I2C-bus

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13 INTERNAL CIRCUITRY
PIN
SYMBOL AND
DESCRIPTION
CHARACTERISTIC
1 FBL; fast
open-circuit base
blanking input
for OSD
insertion
WAVEFORM
5V
0V
MHA653
EQUIVALENT CIRCUIT
VP
1
1 kΩ
50 µA
50 µA
50 µA
50 µA
signal
blanking
OSD1
blanking
OSD2
blanking
OSD3
blanking
2 OSD₁; OSD
open-circuit base
input channel 1
3 OSD₂; OSD
open-circuit base
input channel 2
5V
0V
MHA653
5V
0V
MHA653
MHA928
VP
2
1 kΩ
VP
50 µA
signal blanking
disable OSD
1 kΩ
FBL
MHB197
VP
3
1 kΩ
VP
50 µA
signal blanking
disable OSD
1 kΩ
FBL
MHB198