tda8374bh NXP Semiconductors, tda8374bh Datasheet - Page 45

• Manufacturer Part Number: tda8374bh
• Description: Tda837x Family I?c-bus Controlled Economy Pal/ntsc And Ntsc Tv-processors
• Manufacturer: NXP Semiconductors

Philips Semiconductors
48. This is a current input. The indicated value of the nominal bias current is obtained at the nominal setting of the gain
49. The beam current limiting and the vertical guard function have been combined on this pin. The beam current limiting
Table 57 Output current of the phase detector in the various conditions
Note
1. During vertical retrace the width is 22 s and during the lower part of the picture 12 s. In the other conditions the
1997 Jul 01
handbook, halfpage
I
and NTSC TV-processors
2
VID
(white point) control. The actual value of the bias current depends on the gain control setting of each channel. As a
result the ‘black current’ of each gun is adapted to the white point setting so that the background colour will follow
the white point adjustment.
function is active during the vertical scan period.
width is 5.7 s and the gating is continuous.
0
C-bus controlled economy PAL/NTSC
(dB)
100
I
20
40
60
80
2
0
C-BUS COMMANDS
0
POC
Fig.8 Volume control curve.
0
0
0
0
0
0
0
0
1
10
FOA
0
0
0
0
0
1
1
1
20
DAC (HEX)
FOB
30
0
0
0
1
1
0
0
1
MGK290
40
IDENT
yes
yes
yes
yes
yes
yes
yes
no
IC CONDITIONS
COIN
yes
yes
yes
yes
yes
no
no
45
handbook, halfpage
Positive overshoot.
NOISE
yes
yes
no
no
(%)
40
30
20
10
0
0
Fig.9 Peaking control curve.
SCAN
180
180
180
180
180
30
30
30
6
4
-1 CURRENT/MODE
V-RETR GATING
8
270
270
270
270
270
30
30
30
6
TDA837x family
DAC (HEX)
Preliminary specification
C
yes
yes
yes
yes
yes
no
no
no
no
F
(1)
MGK291
10
MODE
OSD
auto
auto
auto
slow
slow
slow
fast
fast
off