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PDF TMC3003KRC30 Data sheet ( Hoja de datos )
| Número de pieza | TMC3003KRC30 | |
| Descripción | Triple Video D/A Converter | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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TMC3003
Triple Video D/A Converter
10 bit, 80 Msps
www.fairchildsemi.com
Features
• 10-bit resolution
• 80, 50, and 30 megapixels per second
• Sync and blank controls
• Sync on green D/A output
• 1.0V p-p video into 37.5Ω or 75Ω load
• Enhancement of ADV7122
– Internal bandgap voltage reference
– Double-buffered data for low distortion
• TTL-compatible inputs
• Low glitch energy
• Single +5 Volt power supply
Applications
• Video signal conversion
– RGB
– YCBCR
– Composite, Y, C
• Multimedia systems
• Image processing
• True-color graphics systems (1 billion colors)
• Broadcast television equipment
• High-Definition Television (HDTV) equipment
• Direct digital synthesis
Description
The TMC3003 is a high-speed triple 10-bit D/A converter
especially suited for video and graphics applications.
It offers 10-bit resolution, TTL-compatible inputs, low
power consumption, and requires only a single +5 Volt
power supply. It has single-ended current outputs, SYNC
and BLANK control inputs, and a separate current source for
adding sync pulses to the Green D/A converter output. It is
ideal for generating analog RGB from digital RGB and
driving computer display and video monitors. Three speed
grades are available: 30, 50, and 80 Msps.
The TMC3003 triple D/A converter is available in a 44-lead
plastic J-leaded PLCC and 48-Lead quad flatpack (LQFP).
It is fabricated on a sub-micron CMOS process with perfor-
mance guaranteed from 0°C to 70°C.
Block Diagram
SYNC
BLANK
10
G9-0
10 bit
D/A Converter
IOG
10
B9-0
10 bit
D/A Converter
IOB
10
R9-0
10 bit
D/A Converter
CLK
+1.235V
Ref
IOR
COMP
RREF
VREF
65-3003-01
REV. 1.0.3 3/5/01
1 page  
PRODUCT SPECIFICATION
TMC3003
Pin Descriptions (continued)
Pin Number
Pin Name PLCC
LQFP
Voltage Reference
VREF 38 35
RREF 39 36
COMP
37
34
Power and Ground
VDD
18, 33, 34
GND
30, 31
12, 30, 31
27, 28
Value Description
+1.235 V
560 Ω
Voltage Reference output/input. An internal voltage
source of +1.235 Volts is output on this pin. An external
+1.235 Volt reference may be applied here which
overrides the internal reference. Decoupling VREF to GND
with a 0.1µF ceramic capacitor is required.
Current-setting resistor. The full-scale output current of
each D/A converter is determined by the value of the
resistor connected between RREF and GND. The nominal
value for RREF is found from:
RREF = 9.1( VREF/IFS)
where IFS is the full-scale (white) output current (in amps)
from the
D/A converter (without sync). Sync is 0.4 * IFS.
D/A full-scale (white) current may also be calculated from:
IFS = VFS/ RL
0.1 µF
Where VFS is the white voltage level and RL is the total
resistive load (in ohms) on each D/A converter. VFS is the
blank to full-scale voltage.
Compensation capacitor. A 0.1 µF ceramic capacitor
must be connected between COMP and VDD to stabilize
internal bias circuitry.
+5 V
0.0 V
Power supply
Ground
Equivalent Circuits
Digital
Input
VDD
p
n
GND
27014C
Figure 2. Equivalent Digital Input Circuit
VDD
np
VDD
GND
OUT
27013B
Figure 3. Equivalent Analog Output Circuit
REV. 1.0.3 3/5/01
5
5 Page 
PRODUCT SPECIFICATION
TMC3003
Mechanical Dimensions – 48-Lead LQFP Package
Symbol
A
A1
A2
B
D/E
D1/E1
e
L
N
ND
α
ccc
Inches
Min. Max.
.055 .063
.001 .005
.053 .057
.006 .010
.346 .362
.268 .284
.019 BSC
.017 .029
48
12
0° 7°
.004
Millimeters
Min. Max.
1.40 1.60
.05 .15
1.35 1.45
.17 .27
8.8 9.2
6.8 7.2
.50 BSC
.45 .75
48
12
0° 7°
0.08
Notes
7
8
2
6
4
5
Notes:
1. All dimensions and tolerances conform to ANSI Y14.5M-1982.
2. Dimensions "D1" and "E1" do not include mold protrusion.
Allowable protrusion is 0.25mm per side. D1 and E1 are maximum
plastic body size dimensions including mold mismatch.
3. Pin 1 identifier is optional.
4. Dimension ND: Number of terminals.
5. Dimension ND: Number of terminals per package edge.
6. "L" is the length of terminal for soldering to a substrate.
7. Dimension "B" does not include dambar protrusion. Allowable
dambar protrusion shall not cause the lead width to exceed the
maximum B dimension by more than 0.08mm. Dambar can not be
located on the lower radius or the foot. Minimum space between
protrusion and an adjacent lead is 0.07mm for 0.4mm and 0.5mm
pitch packages.
8. To be determined at seating place —C—
D
D1
e
E E1
PIN 1
IDENTIFIER
A A2
B
A1
0.063" Ref (1.60mm)
See Lead Detail
Base Plane
Seating Plane
-C-
LEAD COPLANARITY
ccc C
L
C
α
REV. 1.0.3 3/5/01
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TMC3003KRC30.PDF ] | |
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