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PDF BL1516 Data sheet ( Hoja de datos )
| Número de pieza | BL1516 | |
| Descripción | HDTV Video Filter Driver | |
| Fabricantes | BELLING | |
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Hay una vista previa y un enlace de descarga de BL1516 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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BL1516
Triple, 35MHz, 6th Order, HDTV Video Filter Driver
BL1516
Description
The BL1516 is a video buffer which integrates triple 6dB Gain rail-to-rail output driver and triple 6th
order output reconstruction filter, and it owns 35MHz -3dB bandwidth. Compared with passive LC
filters and discrete drivers, BL1516 can improve image quality. And it is ideally suited for battery
powered applications, because the BL1516 can operate under the environment with single supplies
ranging from +3.3V to +5.5V and sinking an ultra-low 36mA quiescent current.
Video signal, such as the output of DAC, can be input in the BL1516 by DC-coupled or AC-coupled
ways. Internal diode clamps and bias circuitry may be used if AC-coupled inputs are required. BL1516
also integrates an internal level shift circuit which avoids sync-pulse being clipped and allows DC-
coupled output. The driver in BL1516 can drive DC or AC-coupled single (150Ω) or dual (75 Ω) loads.
Features
Triple 6th Order 35MHz (HD) Filters
Transparent Input Clamping
6dB Output Driver Gain and Drive Dual Video Load
Rail-to-Rail Output
Input Voltage Range Includes Ground
AC or DC Coupled Inputs / Outputs
Operates from 3.3V to 5.5V Single Power Supply
Low Power
36mA Total Supply Current
Green SOP8 Package
Applications
Cable and Satellite Set-Top Boxes
Video Amplifiers
Communications Devices
Personal Video Recorders
Video on Demand,
DVD Players, HDTV, Projectors
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Total 7 Pages
1 page  
BL1516
Typical Application Diagram
The following schematic in Figure 1 is normally used for AC coupled output and DC-
coupled input with DAC which has an output voltage range of 0V to 1.4V. AC coupled
output offer slightly lower power dissipation and high ESD protection ability. Figure 2 is
Is a kind of special application in STB .
R/Pr
G/Y
75Ω
75Ω
input
clamp
1 IN1
filter
OUT1 8
input
clamp
2 IN2
filter
OUT2 7
220μF
R/Pr
75Ω
220μF
75Ω
G/Y
B/Pb
+5V
75Ω
input
clamp
3 IN3
filter
OUT3 6
4 +Vs
BL1516
GND 5
220μF
B/Pb
75Ω
SOC
Of
STB
10μF
0.1μF or 0.01μF
Figure 1 Input DC Coupling and Output AC
Coupling Application Schematic
Y
75Ω
Pb
75Ω
input
clamp
1 IN1
filter
input
clamp
2 IN2
filter
OUT1 8
A
OUT2 7
B
220μF
to loading1
75Ω
220μF
to loading2
75Ω
220μF
to loading1
75Ω
220μF
to loading2
75Ω
Pr
75Ω
input
clamp
3 IN3
filter
4 +Vs
BL1516
OUT3 6
C
GND 5
220μF
to loading1
75Ω
220μF
to loading2
75Ω
Vcc
10μF
0.1μF or 0.01μF
Figure 2 A kind of special application in STB
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-5-
Total 7 Pages
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet BL1516.PDF ] | |
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