參數(shù)資料
型號(hào): TMC2360
廠商: Fairchild Semiconductor Corporation
英文描述: VGA to NTSC/PAL Video Output Processor(VGA 到NTSC/PAL 視頻輸出處理器)
中文描述: VGA轉(zhuǎn)NTSC / PAL視頻輸出處理器(顯卡到的NTSC / PAL視頻輸出處理器)
文件頁(yè)數(shù): 5/24頁(yè)
文件大?。?/td> 230K
代理商: TMC2360
PRODUCT SPECIFICATION
TMC2360
5
POS
R, D
47, 48
CMOS
S
TV Image Position Controls.
Position controls shift the VGA image
horizontally or vertically, revealing portions that are found near the
edges or in the overscan areas. Default power-up position is the
midpoint of the adjustment range. POS
D,R
inputs are Schmitt
triggers.
A/D Converter Interface
R, G, B
59, 53, 50
700 mV
Analog RGB Inputs.
Analog red, blue and green inputs to the A/D
converters from incoming VGA signals. Nominal voltage range is 0.0
to +700 mV.
A/D Converter Reference Buffered Input.
Buffer is a voltage
follower that may be connected to V
RT
.
A/D Converter Reference Buffered Output.
May be connected to
V
RT
to supply current to A/D converter reference resistors. In power
down mode, V
TOUT
drops to zero.
A/D Converter Reference Input, Unbuffered.
Supplies current to
A/D converter reference resistors. May be driven from V
TOUT
.
Voltage range is 0.5 to 2.0 volts.
V
TIN
57
750 mV
V
TOUT
56
750 mV
V
RT
55
750 mV
Video Outputs
COMPOSITE
2
1 V p-p
NTSC/PAL Video Output, Composite Video.
NTSC/PAL baseband
composite output can drive 1 Volt p-p video into a 37.5
load.
Contains sync, subcarrier and active video information to drive
monitors, projectors, VCRs, and other video devices.
Luminance-only Video.
This analog monochrome video output can
drive 1 Volt p-p video into a 37.5
load. Contains all sync and active
video information necessary to drive black-and-white video devices.
Chrominance-only Video.
This analog output can drive a 37.5
load. CHROMA signal, when combined with LUMA comprises an S-
Video signal suitable for driving monitors, projectors, VCRs, and
other S-Video devices.
LUMA
80
1 V p-p
CHROMA
78
1 V p-p
Voltage Reference
V
REF
4
+1.23 V
Voltage Reference Input/Output.
Output of an internal 1.23 Volt
band-gap voltage reference. If unconnected, except for a 0.1F
capacitor to ground for noise decoupling, the internal reference will be
used for the three D/A converters. An externally generated voltage
reference of +1.2 Volts applied to the V
REF
pin will override the
internal voltage reference and become the new reference for the
D/A converters.
C
BYPR
77
0.1
μ
F
Reference Bypass Capacitor.
An external 0.1F capacitor should be
connected between C
BYPR
and V
DDA
to reduce noise on the internal
reference circuitry.
R
REF
3
392
Current-setting Resistor.
A 392
resistor connected between the
R
REF
terminal and ground establishes the reference current for the
three internal D/A converters. Resistor value determines the full-scale
output current (and therefore the peak video level) of the D/A convert-
ers.
Pin Descriptions
(continued)
Pin Name
Pin Number
Type/
Value
Pin Function Description
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