SGM9155 [SGMICRO]
Single Channel, Video Filter Driver;
| 型号： | SGM9155 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Single Channel, Video Filter Driver |
| 文件： | 总13页 (文件大小：504K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM9155
Single Channel, Video Filter
Driver for HD (720p)
PRODUCT DESCRIPTION
FEATURES
The SGM9155 video filter is intended to replace
passive LC filters and drivers with an integrated device.
The 6th-order channel offers High Definition (HD) filter.
The SGM9155 may be directly driven by a DC-coupled
DAC output or an AC-coupled signal. Internal bias
circuitry provides constant bias voltage for AC-coupled
input.
6dB Gain for 720p High Definition Mode
Bias Mode Active with AC-Coupled Input
Bias Mode Inactive with DC-Coupled Input
AC- or DC-Coupled Output
DC-Coupled Output Eliminates AC Coupling
Capacitor
Available in Green SOT-23-6 and SC70-5 Packages
-40℃ to +85℃ Operating Temperature Range
The output can be AC- or DC-coupled. DC coupling the
output removes the need for large output coupling
capacitors.
APPLICATIONS
Set-Top Boxes
The SGM9155 is available in Green SOT-23-6 and
SC70-5 packages. It operates over an ambient
temperature range of -40℃ to +85℃.
Communication Devices
Portable and Handheld Products
Personal Video Recorders
Video on Demand
DVD Players
HDTVs
BLOCK DIAGRAM
6dB Gain Amp.
HD OUT
Bias
HD IN
720p
REV. A
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SOT-23-6
SC70-5
SGM9155AYN6G/TR
SZ2XX
SZ3XX
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
SGM9155A
( 6dB Gain )
SGM9155AYC5G/TR
MARKING INFORMATION
SYY X X
NOTE: XX = Date Code.
Green (RoHS & HSF): SG Micro Corp defines "Green" to
mean Pb-Free (RoHS compatible) and free of halogen
substances. If you have additional comments or questions,
please contact your SGMICRO representative directly.
Date code - Month ("A" = Jan. "B" = Feb. … "L" = Dec.)
Date code - Year ("A" = 2010, "B" = 2011 …)
Chip I.D.
For example: SZ3EA (2014, January)
ABSOLUTE MAXIMUM RATINGS
ESD SENSITIVITY CAUTION
Input Voltage Range .....................GND - 0.3V to VCC + 0.3V
Supply Voltage, VCC....................................................... 6.0V
Junction Temperature ..................................................150℃
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation
procedures can cause damage. ESD damage can range from
subtle performance degradation to complete device failure.
Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause
the device not to meet its published specifications.
Storage Temperature Range........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s)..............................260℃
ESD Susceptibility
HBM............................................................................ 8000V
MM................................................................................ 400V
RECOMMENDED OPERATING CONDITIONS
Operating Voltage Range...................................3.1V to 5.5V
Operating Temperature Range ...................... -40℃ to +85℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, specification or other related things if
necessary without notice at any time
OVERSTRESS CAUTION
Stresses beyond those listed may cause permanent damage
to the device. Functional operation of the device at these or
any other conditions beyond those indicated in the
operational section of the specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
2
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
PIN CONFIGURATIONS
(TOP VIEW)
(TOP VIEW)
GND
GND
IN
1
2
3
5
4
OUT
EN
OUT
NC
1
2
3
6
5
4
VCC
GND
IN
VCC
SOT-23-6
SC70-5
PIN DESCRIPTION
PIN
NAME
FUNCTION
SOT-23-6
SC70-5
1
2
3
4
5
6
—
5
EN
OUT
NC
Enable Pin.
Video Output.
—
3
No Internal Connection.
Video Input.
IN
1, 2
4
GND
VCC
Ground.
Power Supply.
3
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
ELECTRICAL CHARACTERISTICS
(VCC = 5V, SGM9155A VIN = 1VPP, TA = +25℃, RSOURCE = 37.5Ω; the input is AC-coupled with 0.1µF; the output is AC-coupled
with 220µF into 150Ω, referenced to 400kHz, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC ELECTRICAL CHARACTERISTICS
Operating Voltage Range (VCC
)
3.1
5
5.5
16.5
550
6.35
V
mA
mV
dB
V
Quiescent Current (IQ)
No load
12.5
360
6.1
4.8
1.3
1.4
52
Output Level Shift Voltage (VOLS
)
VIN = 0V, no load
Voltage Gain of SGM9155A (AV)
Output Voltage High Swing
Shutdown Current
RL = 150Ω
5.75
VIN = 3V, RL = 150Ω to GND
15
μA
VPP
dB
V
Video Input Voltage Range
Referenced to GND if DC-coupled
Power Supply Rejection Ratio (PSRR) DC
VIH of EN Pin
2.4
VIL of EN Pin
0.8
V
720p HIGH DEFINITION MODE ELECTRICAL CHARACTERISTICS
Channel Gain
Active video input range = 1VPP
RL = 150Ω
6
dB
MHz
MHz
dB
-1dB Bandwidth of SGM9155A
-3dB Bandwidth of SGM9155A
Filter Response (Normalized Gain)
Group Delay Variation (D/DT)
Slew Rate
36
RL = 150Ω
40
fIN = 400kHz to 74.25MHz
Difference between 400kHz and 30MHz
2V output step, 80% to 20%
2V output step, 80% to 20%
2V output step, 80% to 20%
100kHz to 30MHz
30
3.8
175
6.5
7.0
-65
2
ns
V/μs
ns
Fall Time
Rise Time
ns
Signal to Noise Ratio (SNR)
dB
Enable Time (tON
)
μs
Disable Time (tOFF
)
0.5
μs
4
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
TYPICAL PERFORMANCE CHARACTERISTICS
VCC = 5V, SGM9155A VIN = 1VPP, TA = +25℃, RSOURCE = 37.5Ω; the input is AC-coupled with 0.1µF; the output is AC-coupled with
220µF into 150Ω, referenced to 400kHz, unless otherwise noted.
Gain vs. Frequency
Group Delay vs. Frequency
90
70
20
10
50
0
30
-10
-20
-30
-40
10
-10
-30
0.1
1
10
100
1000
0.1
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Large Signal Step Response
VIN = 1VPP
Small Signal Step Response
VIN = 0.1VPP
1.80
1.20
0.60
0.00
-0.60
-1.20
-1.80
0.18
0.12
0.06
0.00
-0.06
-0.12
-0.18
-0.35 -0.15
0.05
0.25
0.45
0.65
0.85
-0.35 -0.15
0.05
0.25
0.45
0.65
0.85
Time (μs)
Time (µs)
5
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
TYPICAL APPLICATION CIRCUITS
VCC
+5.0V
Video Encoder
10μF
6
VCC
4
DAC
IN
0.1μF
10kΩ
R
SGM9155
220μF
2
Video Output
OUT
1
75Ω
Enable Control
EN
GND
5
Figure 1. AC-Coupled Input and Output Application Circuit
VCC
+5.0V
Video Encoder
DAC
10μF
6
VCC
4
IN
0.1μF
10kΩ
R
SGM9155
2
Video Output
OUT
1
75Ω
Enable Control
EN
GND
5
Figure 2. AC-Coupled Input and DC-Coupled Output Application Circuit
NOTE:
1. Power supply VCC must be sequenced on first before input video signals.
6
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
APPLICATION INFORMATION
Application Circuits
The SGM9155 video filter provides 6dB gain from input to
output. In addition, the input is slightly offset to optimize the
output driver performance. The offset is held to the minimum
required value to decrease the standing DC current into the
load.
0V - 1.4V
DVD or
LCVF
75Ω
STB
Bias
SoC
DAC
Inactive
Output
For symmetric signals like Chroma, U, V, Pb and Pr, the
average DC bias is fairly constant and the input can be
AC-coupled. DAC output can also drive these same signals
without the AC coupling capacitor.
Figure 5. DC-Coupled Input and Output
NOTE: The video tilt or line time distortion is dominated by the
AC coupling capacitor. The value may need to be increased
beyond 220μF to obtain satisfactory operation in some
applications.
I/O Configurations
For an AC-coupled DAC drive with AC-coupled output, use
the configuration in Figure 3.
Power Dissipation
0V - 1.4V
DVD or
STB
220μF
LCVF
Bias
Active
75Ω
The SGM9155 output drive configuration must be considered
when calculating overall power dissipation. Care must be
taken not to exceed the maximum die junction temperature.
The following equations can be used to calculate the power
dissipation and internal temperature rise.
SoC
0.1μF
DAC
Output
TJ = TA + PD • θJA
where:
(1)
(2)
(3)
Figure 3. AC-Coupled Input and Output
PD = VCC • ICC - (VO2/RL)
where:
Alternatively, if the DAC’s average DC output level causes the
signal to exceed the range from 0V to 1.4V, it can be
AC-coupled as shown in Figure 4.
VO = 2VIN + 0.36V
VIN = RMS value of input signal
I
CC = 12.5mA
VCC = 5.0V
0V - 1.4V
RL = channel load resistance
DVD or
LCVF
75Ω
STB
Bias
SoC
DAC
0.1µF
Active
Board layout can also affect thermal characteristics. Refer to
the Layout Considerations section for details.
Output
The SGM9155 is specified to operate with output currents
typically less than 50mA. Internal amplifiers are current
limited to a maximum of 80mA and should withstand
brief-duration short-circuit conditions. This capability is not
guaranteed.
Figure 4. AC-Coupled Input, DC-Coupled Output
For a DC-coupled DAC drive with DC-coupled output, use the
configuration in Figure 5.
7
SG Micro Corp
www.sg-micro.com
Single Channel, Video Filter
Driver for HD (720p)
SGM9155
APPLICATION INFORMATION
Output Considerations
Recommended Routing/Layout Rules
Do not run analog and digital signals in parallel.
Use separate analog and digital power planes to supply
power.
The selection of the coupling capacitor is a function of the
subsequent circuit input impedance and the leakage current
of the input being driven. In order to obtain the highest quality
output video signal the series termination resistor must be
placed as close to the device output pin as possible. This
greatly reduces the parasitic capacitance and inductance
effect on the SGM9155 output driver. Recommended
distance from device pin to series termination resistor should
be no greater than 0.1 inches.
Do not run traces on top of the ground plane.
Run no traces over ground/power splits.
Avoid routing at 90-degree angles.
Minimize clock and video data trace length differences.
Include 0.01μF and 0.1μF ceramic power supply bypass
capacitors.
Place the 0.1μF capacitor within 0.1 inches of the device
power pin.
Place the 0.01μF capacitor within 0.75 inches of the device
power pin.
75Ω series termination resistor
For multi-layer boards, use a large ground plane to help
dissipate heat.
For two-layer boards, use a ground plane that extends
beyond the device body at least 0.5 inches on all sides.
Include a metal paddle under the device on the top layer.
Minimize all trace lengths to reduce series inductance.
Place a 75Ω series resistor within 0.5 inches of the output
pin to isolate the output driver from board parasitics.
0.1
Figure 6. Distance from Device Pin to Series Termination
Resistor
PCB Thermal Layout Considerations
Understand the system power requirements and environmental
conditions.
Thermal Considerations
Since the interior of systems such as set-top boxes, TVs and
DVD players are at +70℃, consideration must be given to
Maximize thermal performance of the PCB.
Consider using 70μm of copper for high-power designs.
Make the PCB as thin as possible by reducing FR4 thickness.
Use vias in the power pad to tie adjacent layers together.
Remember that baseline temperature is a function of board
area, not copper thickness.
providing an adequate heat sink for the device package for
maximum heat dissipation. When designing a system board,
determine how much power each device dissipates. Ensure
that devices of high power are not placed in the same location,
such as directly above (top plane) or below (bottom plane)
each other on the PCB.
Consider modeling techniques a first-order approximation.
Layout Considerations
General layout and supply bypassing play a major role in
high-frequency performance and thermal characteristics. We
offer a demonstration board to guide layout and aid device
evaluation. The demo board is a four-layer board with full
power and ground planes. Following this layout configuration
provides optimum performance and thermal characteristics
for the device. For the best results, follow the steps and
recommended routing rules listed below.
8
SG Micro Corp
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-6
D
e1
e
E1
E
2.59
0.99
b
0.95
0.69
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
A2
0.2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
MIN
MAX
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
c
D
E
E1
e
0.950 BSC
1.900 BSC
0.037 BSC
0.075 BSC
e1
L
0.300
0°
0.600
8°
0.012
0°
0.024
8°
θ
TX00034.000
SG Micro Corp
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SC70-5
D
e1
0.65
e
1.9
E1
E
0.75
b
0.4
1.3
RECOMMENDED LAND PATTERN (Unit: mm)
L
L1
A
A1
A2
c
θ
0.20
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.100
0.100
1.000
0.350
0.150
2.200
1.350
2.450
MIN
MAX
0.043
0.004
0.039
0.014
0.006
0.087
0.053
0.096
A
A1
A2
b
0.900
0.000
0.900
0.150
0.080
2.000
1.150
2.150
0.035
0.000
0.035
0.006
0.003
0.079
0.045
0.085
c
D
E
E1
e
0.65 TYP
1.300 BSC
0.525 REF
0.026 TYP
0.051 BSC
0.021 REF
e1
L
L1
θ
0.260
0°
0.460
8°
0.010
0°
0.018
8°
TX00043.000
SG Micro Corp
www.sg-micro.com
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Quadrant
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm)
SOT-23-6
SC70-5
7″
7″
9.5
9.5
3.17
2.25
3.23
2.55
1.37
1.20
4.0
4.0
4.0
4.0
2.0
2.0
8.0
8.0
Q3
Q3
TX10000.000
SG Micro Corp
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
7″ (Option)
7″
368
442
227
410
224
224
8
18
TX20000.000
SG Micro Corp
www.sg-micro.com
REVISION HISTORY
VERSION
DATE
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LOCATION
REMARK
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