LM1229YA National Semiconductor, LM1229YA Datasheet - Page 4

• Manufacturer Part Number: LM1229YA
• Description: I2C Compatible CMOS TV RGB and Deflection Processor
• Manufacturer: National Semiconductor

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DIGITAL MODE
V
V
V
V
V
V
V
∆V
∆V
V
HT
HT
ANALOG MODE
A
A
A
A
A
V
V
A
I
I
A
R
ABL ACTIVE
ABL MAX
V MIN GAIN
V MAX GAIN
V MATCH
V TRACK
ABL HIGH
ABL LOW
V 2.5
V ABL TRACK
LOW
HIGH
OSD-11
OSD-10
OSD-01
OSD-00
OSD-AUX
OSD TRACK
V ANALOG OSD
IP
Video Signal Electrical Characteristics
Unless otherwise noted: T
(Note 7) for Min and Max parameters and (Note 6) for Typicals.
OSD Electrical Characteristics
Unless otherwise noted: T
OSD BLACK
OSD WHITE
MAX
MIN
Symbol
Symbol
/A
V MAX
/
Maximum low input voltage,
(OSD and Enable).
Minimum high input voltage,
(OSD and Enable).
OSD output amplitude.
OSD output amplitude.
OSD output amplitude.
OSD output amplitude.
OSD output amplitude (AUX).
Difference between OSD and video
black levels.
Output Match between channels.
Output Variation between channels. OSD contrast varied from max to
OSD background video maximum
level.
OSD background video minimum
level.
Analog gain from pins 41, 42, 43 to
the video outputs, with input level
0.7 V
Maximum gain attenuation.
Maximum gain match between
channels.
Gain tracking channel to channel. AC input signal. See (Note 11).
ABL control range upper limit.
ABL control range lower limit.
ABL Gain Reduction at V
2.5V.
ABL input bias current during
ABL.
ABL input current sink capability.
ABL channel to channel gain
tracking error.
Minimum input resistance (pins
45, 46, 47)
PP
.
A
A
= 25˚C, V
= 25˚C, V
Parameter
Parameter
CC
CC
= +5.0V, V
= +5.0V. See (Note 7) for Min and Max parameters and (Note 6) for Typicals.
ABL
=
IN
Maximum contrast, V
Maximum contrast, V
(Note 12), AC input signal.
(Note 12), AC input signal.
(Note 12), AC input signal.
(Note 12), AC input signal. V
2.5V
(Note 12), AC input signal.
Input signal = 0.7 V
set to 4.5V and 3.0V.
= 0.70 V
Enable: video inputs selected
OSD: OSD black displayed
Enable: OSD inputs selected
OSD: OSD colors displayed
OSD Enable = 1, OSD Contrast =
11.
OSD Enable = 1, OSD Contrast =
10.
OSD Enable = 1, OSD Contrast =
01.
OSD Enable = 1, OSD Contrast =
00.
OSD Enable = 1, OSD[5] = 1
Same channel, contrast and gain =
0x60
OSD Contrast = 11, maximum
difference between R, G and B
min
OSD[3] = 1, OSD TRANS = 0x7F.
See (Note 18).
OSD[3] = 1, OSD TRANS = 0x00.
See (Note 18).
OSD Enable = 1, Gains at
maximum.
4
P-P
, V
Conditions
(Continued)
Conditions
ABL
P-P
= V
ABL
ABL
, ABL voltage
CC
= 5.0V.
= 5.0V.
, C
ABL
L
= 10 pF, Video Outputs = 2.4 V
=
Min
−85
3.0
Min
±
±
−5.8
2.65
2.35
2.15
1.75
3.75
Typ
Typ
–12
100
3.0
4.5
2.5
1.0
20
10
0.6
0.6
0
3
3
Max
Max
100
7.5
1.0
10
P-P
. See
Units
Units
mA
MΩ
V/V
mV
dB
dB
dB
dB
µA
%
%
%
%
%
V
V
V
V
V
V
V
V
V