TDA8842 NXP Semiconductors, TDA8842 Datasheet - Page 23

• Manufacturer Part Number: TDA8842
• Manufacturer: NXP Semiconductors

Specifications of TDA8842

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Philips Semiconductors
Table 50 Bypass of chroma base-band delay line
Table 51 Automatic colour limiting
Table 52 Enable external comb filter
Table 53 Start-up mode of black current loop; note 1
Note
1. When the circuit is in the automatic mode the RGB
December 16, 1997
I
processors
CMB
BPS
ACL
AST
2
drive is switched-on as soon as the black current loop
has stabilised. Under control of the -processor the
condition of the black current loop is indicated via the
BCF bit. When this bit changes to 0 the RGB drive can
be switched-on by setting the AST bit to 0.
0
1
0
1
0
1
0
1
C-bus controlled PAL/NTSC/SECAM TV
active
bypassed
not active
active
disabled
enabled
automatic mode;
switch-on under control of -processor
DELAY LINE MODE
COLOUR LIMITING
COMB FILTER
MODE
23
Table 54 Cathode drive level
Note
1. The given values are valid for the following conditions:
Table 55 Y-delay adjustment; note 1
Note
1. For an equal delay of the luminance and chrominance
Table 56 Dynamic skin control on/off
Table 57 Dynamic skin control angle
CL2
YD0 to YD3
0
0
0
0
1
1
1
1
DSA
- Nominal CVBS input signal
- Settings for contrast, WPA and peaking nominal
- Black- and blue-stretch switched-off
- Gain of output stage such that no clipping occurs
- Beam current limiting not active
The tolerance on these values is about
signal the delay must be set at a value of 160 ns. This
is only valid for a CVBS signal without group
delay distortions.
DS
0
1
0
1
YD3
YD2
YD1
YD0
CL1
0
0
1
1
0
0
1
1
off
on
correction angle 123 degrees
correction angle 117 degrees
CL0
YD3
YD2
YD1
YD0
0
1
0
1
0
1
0
1
TDA884X/5X-N2 series
ANGLE OF CORRECTION
57V
63 V
70 V
77 V
84 V
91 V
99 V
107 V
160 ns +
80 ns +
40 ns +
40 ns
SETTING CATHODE DRIVE
BL-WH
BL-WH
BL-WH
BL-WH
BL-WH
BL-WH
BL-WH
BL-WH
Tentative Device Specification
AMPLITUDE; NOTE 1
MODE
Y-DELAY
3 V.