NCS2553
3-Channel Video Amp with
Standard Definition
Reconstruction Filters
Description
The NCS2553 is a 3−channel high speed video amplifier with 6th
order butterworth standard definition reconstruction filter.
All three channels can accommodate either all component and RGB
video signals or composite and S−Video signals. All channels can
accept DC or AC coupled signals. If AC coupled, the internal clamps
are employed. The outputs can drive both AC and DC coupled 150
W
loads.
It is designed to be compatible with most digital−to−analog
converters (DAC) embedded in most video processors.
Feature
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MARKING
DIAGRAM
1
SOIC−8 NB
D SUFFIX
CASE 751
A
L
Y
W
G
8
N2553
ALYW
G
8
1
•
•
•
•
•
•
•
•
•
•
•
•
•
Three 6th Order Standard Definition 8 MHz Filters
Internally Fixed Gain = 6 dB
AC− or DC− Coupled Inputs
AC− or DC− Coupled Outputs
Integrated Level Shifter
Operating Voltage +5 V
Available in a SOIC−8 Package
These are Pb−Free Devices
Digital Set−Top Box
DVD / Video Players and Related
SD−TV
Video On Demand (VOD)
Video Recorders
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PINOUT
SD IN1 1
SD IN2 2
SD IN3 3
V
CC
4
NCS2553
SOIC−8
8 SD OUT1
7 SD OUT2
6 SD OUT3
5 GND
Applications
ORDERING INFORMATION
Device
NCS2553DG
NCS2553DR2G
Package
SOIC−8
(Pb−Free)
SOIC−8
(Pb−Free)
Shipping
†
98 Units / Rail
2500 / Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
©
Semiconductor Components Industries, LLC, 2008
December, 2008
−
Rev. 4
1
Publication Order Number:
NCS2553/D
NCS2553
SD IN1
Transparent Clamp
8 MHz, 6th Order
SD IN2
Transparent Clamp
8 MHz, 6th Order
6dB
SD OUT2
6dB
SD OUT1
SD IN3
Transparent Clamp
8 MHz, 6th Order
6dB
SD OUT3
Figure 1. Block Diagram
PIN FUNCTION AND DESCRIPTION
Pin
1
2
3
4
5
6
7
8
Name
IN1
IN2
IN3
VCC
GND
OUT3
OUT2
OUT1
Type
Input
Input
Input
Power
GND
Output
Output
Output
Description
Video Input 1 for Video Signal featuring a frequency bandwidth compatible with Standard Definition
Video (8 MHz)
−
Channel 1
Video Input 2 for Video Signal featuring a frequency bandwidth compatible with Standard Definition
Video (8 MHz)
−
Channel 2
Video Input 3 for Video Signal featuring a frequency bandwidth compatible with Standard Definition
Video (8 MHz)
−
Channel 3
Device Power Supply Voltage: +5 V
Connected to Ground
SD Video Output 3
−
Channel 3
SD Video Output 2
−
Channel 2
SD Video Output 1
−
Channel 1
ATTRIBUTES
Characteristics
ESD
Human Body Model
Machine Model
All Pins (Note 1)
Pins 1 to 5 (Note 2)
All Output Pins (Note 2)
Value
8 kV
400 V
800 V
Level 1
UL 94 V−0 @ 0.125 in
Moisture Sensitivity (Note 3)
Flammability Rating
−
Oxygen Index: 28 to 34
1. Human Body Model (HBM): R = 1500
W,
C = 100 pF
2. Machine Model (MM)
3. For additional information, see Application Note AND8003/D.
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NCS2553
MAXIMUM RATINGS
Parameter
Power Supply Voltages
Input Voltage Range
Input Differential Voltage Range
Output Current
Maximum Junction Temperature (Note 4)
Operating Ambient Temperature
Storage Temperature Range
Power Dissipation
Thermal Resistance, Junction−to−Air
Symbol
V
CC
V
I
V
ID
I
O
T
J
T
A
T
stg
P
D
R
qJA
Rating
−0.35
v
V
CC
v
5.5
−0.3
v
V
I
v
V
CC
V
I
v
V
CC
50
150
−40
to +85
−60
to +150
(See Graph)
112.7
Unit
Vdc
Vdc
Vdc
mA
°C
°C
°C
mW
°C/W
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
4. Power dissipation must be considered to ensure maximum junction temperature (T
J
) is not exceeded.
Maximum Power Dissipation
1800
POWER DISSIPATION (mW)
1600
1400
1200
1000
800
600
400
200
0
−40 −30−20−10
0 10 20 30 40 50 60 70 80 90100
TEMPERATURE (°C)
The maximum power that can be safely dissipated is
limited by the associated rise in junction temperature.
For the plastic packages, the maximum safe junction
temperature is 150°C. If the maximum is exceeded
momentarily, proper circuit operation will be restored as
soon as the die temperature is reduced. Leaving the device
in the “overheated” condition for an extended period can
result in device burnout. To ensure proper operation, it is
important to observe the de−rating curves.
Figure 2. Power Dissipation vs Temperature
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NCS2553
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +5.0 V, T
A
= 25°C, 0.1
mF
AC coupled inputs, R
source
= 37.5
W,
220
mF
AC
coupled outputs into 150
W
load, referenced to 400 kHz, unless otherwise specified)
Symbol
V
CC
I
CC
V
IN
PSRR
Characteristics
Supply Voltage Range
Power Supply Current
Input Common Mode Voltage Range
Power Supply Rejection
No Load
Referenced to GND if DC−Coupled
DC (All Channels)
GND
−50
Conditions
Min
4.75
Typ
5.0
23
Max
5.25
30
1.4
dB
Unit
V
mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
AC ELECTRICAL CHARACTERISTICS
(V
CC
= +5.0 V, T
A
= 25°C, 0.1
mF
AC coupled inputs, R
source
= 37.5
W,220 mF
AC
coupled outputs into 150
W
load, referenced to 400 kHz, unless otherwise specified)
Symbol
A
VOL
BW
Characteristics
Voltage Gain (Note 5)
Low Pass Filter Bandwidth
Conditions
V
IN
= 1 V (All Channels)
−1
dB (Note 6)
−3
dB
A
R
dG
dq
THD
X
talk
SNR
Tpd
DGD
Stop−Band Attenuation (Rejection)
Differential Gain
Differential Phase
Total Harmonic Distortion
Channel−to−Channel Crosstalk
Signal−to−Noise Ratio
Propagation Delay
Group Delay Variation from 100 kHz to
8 MHz
V
OUT
= 1.8 V
PP
@ 1 MHz
V
OUT
= 1.8 V
PP
@ 1 MHz
NTSC−7, 100 kHz to 4.2 MHz
(Note 7)
Input−to−Output, 4.5 MHz
at 27 MHz
Min
5.8
5.5
Typ
6.0
7.2
9.0
45
0.3
0.6
0.4
−60
75
60
27
Max
6.2
Unit
dB
MHz
MHz
dB
%
_
%
dB
dB
nsec
ns
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
5. 100% of tested IC fit to the bandwidth tolerance.
6. Guaranteed by design and characterization.
7. SNR = 20 x log (714 mV/RMS Noise)
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NCS2553
TYPICAL CHARACTERISTICS
V
CC
= +5.0 V, R
source
= 37.5
W,
T
A
= 25°C, 0.1
mF
AC−coupled inputs, 220
mF
AC−coupled outputs into 150
W
referenced to 400 kHz, all
channels, unless otherwise specified
20
10
0
−10
GAIN (dB)
−20
−30
−40
−50
−60
−70
−80
0.01
V
in
= 4 dBm
Z
out
= 150
W
0.1
6 dB
6.7 MHz,
−0.5
dB
7.2 MHz,
−1
dB
−35
9.0 MHz,
−3
dB
CROSSTALK (dB)
−40
−45
−50
−55
−60
−65
−70
−75
−80
100
−85
100k
V
in
= 4 dBm
Z
out
= 150
W
1M
FREQUENCY (Hz)
8M
1 MHz,
−60
dB
6.7 MHz,
−43
dB
27 MHz Stop−band Rejection
= 46 dB
(6 dB
−
(−40 dB))
1
FREQUENCY (MHz)
10
Figure 3. Frequency Response
110
100
INPUT VOLTAGE (V)
GROUP DELAY (ns)
90
80
70
60
50
40
30
20
10
100k
V
in
= 4 dBm
Z
out
= 150
W
1M
FREQUENCY (Hz)
10M
30M
1.75
1.5
1.25
1.0
0.75
0.5
0.25
0
−0.75
0
50
Figure 4. Channel−to−Channel Crosstalk
3.0
2.0
1.6
79 ns
Output
1.2
0.8
0.4
0
OUTPUT VOLTAGE (V)
2.6
Input
−0.4
100 150 200
250 300
350 400 450 500
TIME (ns)
Figure 5. Group Delay
−45
−50
−55
−60
PSRR (dB)
−70
−75
−80
−85
−90
−95
100k
V
in
=
−22
dBm
Z
out
= 150
W
1M
FREQUENCY (Hz)
10M
50M
PSRR (dB)
−65
−45
−50
−55
−60
−65
−70
−75
−80
−85
−90
−95
100k
Figure 6. Propagation Delay
V
in
=
−22
dBm
Z
out
= 150
W
1M
FREQUENCY (Hz)
10M
50M
Figure 7. PSRR vs Frequency
(No Bypass Capacitor)
Figure 8. PSRR vs. Frequency
(Bypass Capacitor)
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