SGM9115
PRODUCT DESCRIPTION
SGM9115 is a video buffer which integrates triple 6dB
Gain rail-to-rail output driver and triple 3rd output
reconstruction filter, it has 9MHz -3dB bandwidth and
44V/µs slew rate. SGM9115 provides improved image
quality compared with passive LC filters and discrete
drivers solution. Operating from single supplies
ranging from +2.5V to +5.5V and sinking an ultra-low
6.8mA quiescent current, the SGM9115 is ideally
suited for battery powered applications.
SGM9115 can be DC-coupled or AC-coupled with
input video signal, such as the output stage of DAC to
eliminate out-of-band noise.
Internal diode clamps and
bias circuitry may be used if AC-coupled inputs are
required. SGM9115 also integrates an internal level
shift circuit which avoids sync-pulse being clipped
and allows DC-coupled output. The drivers in
SGM9115 can drive DC or AC-coupled single (150
Ω
)
or dual (75
Ω
) loads.
The SGM9115 has lead (Pb) free SOIC-8 package and
ESD(HBM) reaches 8KV.
Triple, 9MHz,
3rd Order
SDTV Video Filter Drivers
FEATURES
•
Triple 3rd order 9MHz (SD) 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
•
AC or DC Coupled Outputs
•
Operates from 2.5 V to 5.5 V Single power
supply
•
Low Power (2.3mA/channel)
6.8 mA total Supply Current
•
Lead (Pb) Free SOIC-8 package
APPLICATIONS
Video amplifiers
Cable and Satellite set top boxes
Communications devices
Video on demand
Portable and handheld products
Personal video recorders
DVD players
SDTVs
BLOCK DIAGRAM
IN1
Transparent
Clamp
6 dB
9MHz, 3rd order
OUT1
IN2
Transparent
Clamp
6 dB
9MHz, 3rd order
OUT2
IN3
Transparent
Clamp
6 dB
9MHz, 3rd order
OUT3
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
REV. B
ELECTRICAL CHARACTERISTICS: V
S
= +5.0V
(At RL = 150Ω connected to GND, Vin=1Vpp，and C
IN
= 0.1µF,
all outputs AC coupled with 220µF，unless
otherwise noted)
SGM9115
PARAMETER
CONDITION
TYP
+25℃
INPUT CHARACTERISTICS
Output Level Shift Voltage (V
OLS
)
Input Bias Current (I
B
)
Input Voltage Clamp (V
CLAMP
)
Clamp Charge Current
Input Resistance (R
IN
)
Voltage Gain ( A
V
)
I
IN
= -1mA
V
IN
= V
CLAMP
-100mV
0.5V
＜
V
IN
＜
1.0V
R
L
= 150Ω
2.0
1.95
2.04
1.93
2.06
4.29
1.91
2.08
4.25
1.90
2.09
4.2
-15
-5
-20
-5.9
-21
-6
-24
-6.5
-27
-7
V
IN
= 0V, no load
258
340
350
380
400
mV
pA
mV
mA
MΩ
V/V
V/V
V
mA
mA
2.7
5.5
58
8.0
2.7
5.5
57
8.5
2.7
5.5
56
9.0
V
V
dB
mA
MHz
MHz
dB
dB
V/µs
%
%
°
°
ns
dB
ns
ns
MAX
TYP
MIN
MIN
MIN
MIN
MAX
MIN
MAX
MIN
MIN
MAX
MIN
MAX
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
TYP
MIN/MAX OVER TEMPERATURE
+25℃
0℃
to70℃
-40℃
to 85℃
-40℃
MIN/
to125℃ UNITS MAX
OUTPUT CHARACTERISTICS
Output Voltage High Swing
Output Short-Circuit Current (I
SC
)
V
IN
= 3V, R
L
= 150Ω to GND
V
IN
= 3V, to GND through 10Ω
V
IN
= 100mV, out short to V
DD
through 10Ω
4.4
-104
110
4.3
-100
103
2.5
5.5
Power Supply Rejection Ratio (PSRR)
Quiescent Current (I
Q
)
DYNAMIC PERFORMANCE
±0.1dB Bandwidth
-3dB Bandwidth
Filter Response
Normalized Gain: f
IN
= 4.5MHz
f
IN
= 27MHz
Slew Rate
Differential Gain (DG)
Differential Phase (DP)
Group Delay Variation (D/DT)
Crosstalk (channel - to - channel)
Fall Time
Rise Time
20% to 80%, V
IN
= 1V Step,
NTSC & PAL DC coupled
NTSC & PAL AC coupled
NTSC & PAL DC coupled
NTSC & PAL AC coupled
f = 400KHz, 6.5MHz
at 1MHz
2.0V
STEP
, 80% to 20%
2.0V
STEP
, 80% to 20%
-0.1
-22
44
0.2
0.52
0.4
1.0
5.5
-64
36
38
R
L
= 150Ω
R
L
= 150Ω
4.5
9.0
V
s
= +2.7 V to + 5.5 V
V
IN
= 500mV,
60
6.8
58
7.8
POWER SUPPLY
Operating Voltage Range
Specifications subject to change without notice.
2
SGM9115
PACKAGE/ORDERING INFORMATION
ORDER NUMBER
PACKAGE
DESCRIPTION
TEMPERATURE
RANGE
PACKAGE
OPTION
MARKING
INFORMATION
SGM9115ZS/TR
SGM9115XS/TR
SO-8
SO-8
0℃ to +70℃
-40℃ to +125℃
Tape and Reel, 2500
Tape and Reel, 2500
SGM9115ZS
SGM9115XS
PIN CONFIGURATIONS
(Top View)
SGM9115
IN1
IN2
IN3
+V
S
1
2
3
4
SO-8
8
7
6
5
OUT1
OUT2
OUT3
GND
PIN DESCRIPTION
PIN
1
2
3
4
5
6
7
8
NAME
IN1
IN2
IN3
+V
S
GND
OUT3
OUT2
OUT1
FUNCTION
Video input, channel 1
Video input, channel 2
Video input, channel 3
Power supply
Ground
Filtered output, channel 3
Filtered output, channel 2
Filtered output, channel 1
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V- ......................................... 7.5 V
Input Voltage
.......................... GND – 0.3 V to (+V
S
) +0.3V
Storage Temperature Range..............–65℃ to +150℃
Junction Temperature ............................................. 160℃
Operating Temperature Range ........... –40℃ to +125℃
Power Dissipation, P
D
@ T
A
= 25℃
SO-8 .............................................................................0.8W
Package Thermal Resistance
SO-8,
θ
JA
................................................................ 128
℃
/W
Lead Temperature Range (Soldering 10 sec)
...................................................... 260℃
ESD Susceptibility
HBM...........................................................................8000V
MM...............................................................................400V
NOTES
1. Stresses above those listed under Absolute Maximum
Ratings may cause permanent damage to the device. This is
a stress rating only; functional operation of the device at
these or any other conditions above those indicated in the
operational section of this specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD if
you don’t pay attention to ESD protection.
Shengbang Micro-electronics 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.
3
SGM9115
TYPICAL PERFORMANCE CHARACTERISTICS
At V
S
= +5.0V, T
A
= +25℃, R
L
= 150Ω, all outputs AC coupled with 220µF, unless otherwise noted.
Frequency Response
270
180
3
0
Phase vs. Frequency
Normalized Gain(dB)
-3
-6
-9
-12
-15
0.01
Phase(degree)
90
0
-90
-180
-270
0.1
1
10
100
0.1
1
10
100
Frequency(MHz)
Frequency(MHz)
Large Signal Step Response
0.75
0.5
0.3
0.2
Small Signal Step Response
Output Voltage(V/)
0.25
0
-0.25
-0.5
-0.75
-0.5 -0.4 -0.3 -0.2 -0.1
Output Voltage(V/)
0
0.1 0.2 0.3 0.4 0.5
0.1
0
-0.1
-0.2
-0.3
-0.5 -0.4 -0.3 -0.2 -0.1
Time (µs)
0
0.1 0.2 0.3 0.4 0.5
Time (µs)
-40
-45
-50
-55
PSRR vs. Frequency(Bypass Caps)
0
-10
-20
PSRR vs. Frequency(No Bypass Caps)
PSRR(dB)
-60
-65
-70
-75
-80
-85
-90
0.01
0.1
1
10
100
PSRR(dB)
-30
-40
-50
-60
-70
-80
0.01
0.1
1
10
100
Frequency(MHz)
Frequency(MHz)
4
SGM9115
TYPICAL PERFORMANCE CHARACTERISTICS
At V
S
= +5.0V, T
A
= +25℃, R
L
= 150Ω, all outputs AC coupled with 220µF, unless otherwise noted.
Group Delay vs. Frequency
50
45
40
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
Quiescent Current vs. Supply Voltage
No Load
V
IN
= 500mV
35
30
25
20
15
10
0.01
Quiescent Current (mA)
Group Delay (ns)
0.1
Frequency(MHz)
1
10
2
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage(V)
Output Voltage Swing to The Positive Rail vs.
Output Current
5
Output Voltage Swing to The Negative Rail
vs. Output Current
0.7
0.6
V
IN
= 0V
-40℃
+25℃
+85℃
Output Voltage(v)
Output Voltage(v)
60
80
100
4.5
0.5
0.4
0.3
0.2
0.1
4
+85℃
+25℃
3.5
-40
3
0
20
40
0
Output Current(mA)
0
20
40
60
80
100
Output Current(mA)
Gain Error vs. Temperature
1
0.9
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-50
-25
0
25
50
75
100
125
0.8
12
11
10
9
8
7
6
5
4
3
2
-50
Quiescent Current vs. Temperature
Quiescent Current (mA)
Gain Error(%)
-25
0
25
50
75
100
125
Temperature(℃)
Temperature(℃)
5
SGM9115
Real-time operating system RTOS
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