NCS2584
Four-Channel Video Driver
with Load Detection and
Signal Detection
The NCS2584 is a 4−channel high speed video driver with 6th order
Butterworth Reconstruction filters on each channel. A first set of
3−channel has High Definition (HD) 34 MHz filters, one per channel.
A fourth channel offers an extra driver for Cvbs−type video signal
with an 8 MHz filter. The NCS2584 is in fact a combination of a triple
HD video driver plus a single Cvbs video driver.
In addition, this four channel video driver integrates an auto
shutdown function in order to detect the moment when the DAC is
turned on or off. It also embeds a load detection to lower the power
consumption when the TV is unplugged. To further reduce the layout
and software complexity, the NCS2584 will automatically turn off
without any external command. These features help significantly the
systems like Blu−Ray™ players or Set Top Boxes to be in line with the
restricting energy saving standards on standby modes.
It is designed to be compatible with Digital−to−Analog Converters
(DAC) embedded in most video processors.
All channels can accept DC or AC coupled signals. In case of
AC−coupled inputs, the internal clamps are enabled. The outputs can
drive both AC and DC coupled 150
W
loads but also two loads of
150
W
in parallel.
Features
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MARKING
DIAGRAM
14
1
TSSOP−14
CASE 948G
A, AA
Y
W
G
1
14
NCS
2584
ALYW
= Assembly Location
= Year
= Work Week
= Pb−Free Package
*For additional marking information, refer to
Application Note AND8473/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
•
3 High Definition Filters with 6
th
Order Butterworth Filter and
•
•
•
•
•
•
•
•
•
•
34 MHz Bandwidth for YPbPr 1080i
One Cvbs Driver Including 6th Order Butterworth 8 MHz Filter
Integrated Automatic Shutdown Function to Improve Power
Consumption Savings When the DAC is Off
Integrated Load Detection for TV Presence
Low Pin Count for Layout Simplification
Internal Fixed Gain: 6 dB
$0.2
AC or DC Coupled Inputs and Outputs
Each channel Capable to Drive 2 Loads of 150
W
in Parallel
Operating Supply Voltage Range: +3.3 V and 5.0 V
TSSOP14 Package
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Related Resource:
Refer to Application Note AND9046/D for details
regarding Load Detection and Application Note
AND8473/D for details on input video signal
detection
Typical Application
•
Set Top Box Decoder
•
DVD and Blu−Ray Player / Recorder
•
HDTV, Home Theatre
©
Semiconductor Components Industries, LLC, 2012
August, 2012
−
Rev. 0
1
Publication Order Number:
NCS2584/D
NCS2584
Cvbs IN
HD IN1
HD IN2
HD IN3
GND
NC
NC
1
2
3
4
5
6
7
(Top View)
14
13
12
11
10
9
8
Cvbs OUT
HD OUT1
HD OUT2
HD OUT3
VCC
NC
NC
Figure 1. Pinouts
NCS2584
Shutdown
Detection
Cvbs IN
1
Transparent Clamp
8 MHz, 6
th
Order
6 dB
14 Cvbs OUT
HD IN1
2
Transparent Clamp
34 MHz, 6
th
Order
6 dB
13 HD OUT1
HD IN2
3
Transparent Clamp
34 MHz, 6
th
Order
6 dB
12 HD OUT2
HD IN3
4
Transparent Clamp
34 MHz, 6
th
Order
Output Load
Detection
6 dB
11 HD OUT3
GND
5
10 VCC
NC
6
9
NC
NC
7
8
NC
Figure 2. NCS2584 TSSOP−14 Block Diagram
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2
NCS2584
TSSOP−14 PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
Name
Cvbs IN
HD IN1
HD IN2
HD IN3
GND
NC
NC
NC
NC
Type
Input
Input
Input
Input
Ground
NC
NC
NC
NC
Cvbs Input Channel
High Definition Input 1
High Definition Input 2
High Definition Input 3
Ground
No Connection
No Connection
No Connection
No Connection
Description
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁ ÁÁÁ
Á Á Á Á Á ÁÁÁÁ ÁÁÁ
Á
Á
10
11
12
13
14
VCC
Power
Power Supply 3.3 V or 5 V
High Definition Output 3
High Definition Output 2
High Definition Output 1
Cvbs Output Channel
HD OUT3
HD OUT2
HD OUT1
Cvbs OUT
Output
Output
Output
Output
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3
NCS2584
MAXIMUM RATINGS
Rating
Power Supply Voltages
Input Voltage Range
Input Differential Voltage Range
Output Current (Indefinitely) per Channel
Maximum Junction Temperature (Note 1)
Operating Ambient Temperature
Storage Temperature Range
Thermal Resistance, Junction−to−Air
ESD Protection Voltage (HBM)
Symbol
V
CC
V
I/O
V
ID
I
O
T
J
T
A
T
stg
R
qJA
V
esd
Value
−0.3
v
V
CC
v
5.5
−0.3
v
V
I
v
V
CC
−0.3
v
V
I
v
V
CC
40
150
−40
to +85
−60
to +150
125
6000
Unit
Vdc
Vdc
Vdc
mA
°C
°C
°C
°C/W
V
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.
1. Power dissipation must be considered to ensure maximum junction temperature (T
J
) is not exceeded.
Maximum Power Dissipation
1800
POWER DISSIPATION (mV)
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 derating curves.
Figure 3. Power Dissipation vs Temperature
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4
NCS2584
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.3 V, T
A
= 25°C; unless otherwise specified)
Symbol
POWER SUPPLY
I
CC
I
CC sh1
I
CC sh2
I
CC SD
I
CC HD
V
cm
V
OH
V
OL
I
O
All channel Loaded 150
W,
signal on all inputs, including the load current
Shutdown current, no load, no input signal
Shutdown current, no load, with input signal on all inputs
Only the SD channel loaded 150
W,
signal on all inputs
Only the 3 HD channels loaded 150
W,
signal on all inputs
Input Common Mode Voltage Range
Output Voltage High Level
Output Voltage Low Level
Output Current
38
V
CC
= 3.3 V or 5 V
GND
V
CC
−0.4
V
CC
−0.25
280
400
73
5
9
20
53
1.4
120
10
40
mA
mA
mA
mA
mA
V
PP
V
mV
mA
Characteristics
Conditions
Min
Typ
Max
Unit
DC PERFORMANCE
R
source
= 75
W,
T
A
= 25°C, inputs AC−coupled with 0.1
mF,
all outputs AC−coupled with 220
mF
into 150
W
referenced to 400 kHz;
unless otherwise specified)
Symbol
A
VSD
BW
SD
A
RSD
dG
SD
dF
SD
THD
X
SD
SNR
SD
Dt
SD
DGD
SD
Voltage Gain
Low Pass Filter Bandwidth
Stop−band Attenuation
Stop−band Attenuation (Note 2)
Differential Gain Error
Differential Phase Error
Total Harmonic Distortion
Channel−to−Channel Crosstalk
Signal−to−Noise Ratio
Propagation Delay
Group Delay Variation
V
out
= 1.4 V
PP
@ 3.58 MHz
@ 1 MHz and V
in
= 1.4 V
PP
NTC−7 Test Signal, 100 kHz
to 4.2 MHz (Note 3)
@ 4.5 MHz
100 kHz to 8 MHz
Characteristics
Conditions
V
in
= 1 V
−
All SD Channels
−1
dB (Note 2)
−3
dB
@ 16 MHz
@ 27 MHz
Min
5.8
5.5
6.5
18
43
Typ
6.0
7.2
8.0
25
50
0.7
0.7
0.35
−57
72
70
20
Max
6.2
Unit
dB
MHz
dB
%
°
%
dB
dB
ns
ns
AC ELECTRICAL CHARACTERISTICS FOR STANDARD DEFINITION CHANNELS
(V
CC
= +3.3 V, V
in
= 1 V
PP
,
2. Guaranteed by characterization.
3. SNR = 20 x log (714 mV / RMS noise)
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