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PDF TMC3533KRC50 Data sheet ( Hoja de datos )
| Número de pieza | TMC3533KRC50 | |
| Descripción | Triple Video D/A Converter 8 bit/ 80 Msps/ 3.3V | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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TMC3533
Triple Video D/A Converter
8 bit, 80 Msps, 3.3V
www.fairchildsemi.com
Features
• 8-bit resolution
• 80, 50, and 30 megapixels per second
• ±0.5 LSB linearity error
• Sync, blank, and white controls
• Independent sync current output
• 1.0V p-p video into 37.5Ω or 75Ω load
• Enhancement of the ADV7120
– Internal bandgap voltage reference
– Double-buffered data for low distortion
– Power-down sleep mode
• Double-buffered data for low distortion
• TTL-compatible inputs
• Low glitch energy
• Single +3.3V±5% Volt power supply
Applications
• Video and graphics displays
• Image processing systems
• Video signal conversion
• Broadcast television equipment
• Digital synthesis
Description
The TMC3533 is a high-speed triple 8-bit D/A converter
especially suited for video and graphics applications.
It offers 8-bit resolution, TTL-compatible inputs, low power
consumption, a power-down sleep mode, and requires only a
single +3.3V±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 any D/A
converter output. WHITE and SLEEP control inputs are
available on PLCC parts. 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 TMC3533 triple D/A converter is available in a 44-lead
plastic J-leaded PLCC. It is also available in a 48-lead plastic
LQFP package. It is fabricated on a sub-micron CMOS pro-
cess with performance guaranteed from 0°C to 70°C.
Block Diagram
SYNC
BLANK
WHITE [PLCC only]
8
G7-0
SYNC
IOS
8 bit D/A
Converter
[LQFP only]
IOG
8
B7-0
8 bit D/A
Converter
IOB
8
R7-0
8 bit D/A
Converter
SLEEP [PLCC only]
CLOCK
+1.235V
Ref
IOR
COMP
RREF
VREF
65-3533-01
1
REV. 0.9.1 11/24/99
1 page  
PRODUCT SPECIFICATION
TMC3533
Pin Descriptions (continued)
Pin
Name
RREF
Pin Number
LQFP
PLCC
36 42
Value
572 Ω
COMP
34
40 0.1 µF
Power, Ground
VDD
12, 30, 31 17, 34–36
GND
1, 14, 15,
27, 28, 38,
39, 48
29–32
NC
13, 24, 25,
—
37
+3.3 V
0.0V
—
Equivalent Circuits
VDD
Pin Function Description
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),
but is optimized to be 572 Ω. IFS is the full-scale (white) output
current (amps) from an output without sync. Sync current is 0.4
IFS.
D/A full-scale (white) current may also be calculated from:
IFS = VFS/RL
Where VFS is the white voltage level and RL is the total resistive
load (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.
Power Supply.
Ground.
No Connect
VDD
Digital
Input
p
n
np
VDD
GND
27014D
GND
Figure 2. Equivalent Digital Input Circuit Figure 3. Equivalent Analog Output Circuit
OUT
27013B
REV. 0.9.1 11/24/99
5
5 Page 
PRODUCT SPECIFICATION
TMC3533
Mechanical Dimensions – 48-pin 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
.346
.010
.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. 0.9.1 11/24/99
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TMC3533KRC50.PDF ] | |
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