SPT9401.PDF

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SPT9401
TRIPLE VIDEO DRIVER WITH RGB OUTPUT
FEATURES
•
•
•
•
•
•
•
•
•
•
Triple Video Line Driver Chip with RGB Inputs
R
L
=150
Ω
(75
Ω
Back-Terminated Cable)
Internal Feedback and Bias Circuitry
Power-Down Standby Mode
Very Small 5.0 x 4.4 mm Package
Low Power Dissipation: 130 mW
1 V
P-P
Input Range, 6 dB Voltage Gain
Flat Response f
IN
= 100 kHz to 10 MHz (typical)
Crosstalk -35 dB (Typical)
Single +5 Volt Power Supply
APPLICATIONS
•
•
•
•
•
•
RGB Video Line Driver Applications
Video Line Driver for RGB Encoders
Digital Video Tape Recorders
Video Cassette Recorders
PC Multimedia
Consumer Video
GENERAL DESCRIPTION
The SPT9401 is a triple video line driver chip that takes
standard RGB (Red, Green and Blue) analog inputs and
provides RGB analog outputs for driving 150
Ω
loads (75
Ω
back-terminated cables). The standard RGB input signals
(1 V
P-P
) are each internally biased at 2.3 V and amplified 6 dB
to produce a 2 V
P-P
into an AC-coupled 150
Ω
load. The
SPT9401 features a standby mode which draws only 113
µW
of power. Nominal power dissipation (no input) is typically
130 mW. It requires a single +5 V supply, operates over the
commercial temperature range (0 to +70
°C)
and is available
in a very small (5.0 x 4.4 mm) 12-lead Shrink Small Outline
Package (SSOP).
BLOCK DIAGRAM
+VCC
R Input
100 kΩ
Bias
5 kΩ
Driver
R Output
2.0 V
P-P
5 kΩ
G Output
2.0 V
P-P
G Input
100 kΩ
Bias
5 kΩ
Driver
5 kΩ
B Output
2.0 V
P-P
B Input
100 kΩ
Bias
5 kΩ
Driver
5 kΩ
Standby
GND
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: (719) 528-2300 FAX: (719) 528-2370
ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)
(1)
25
°
C
Supply Voltages
V
CC
....................................................................... +6.0 V
Maximum Power Dissipation
P
D ....................................................................................
350 mW
Thermal Impedance (T
A
=+25
°
C and above)
Θ
CA ............................................................................
2.8 mW/°C
Temperature
Operating Temperature ................................. 0 to +70
°C
Storage Temperature ................................ -55 to +150
°C
Note:
1. Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal
applied conditions in typical applications.
ELECTRICAL SPECIFICATIONS
T
A
= +25
°C,
V
CC
= +5.0 V, V
IN
= 1.0 V
P-P
video signal, R
L
= 150
Ω,
unless otherwise specified.
PARAMETERS
Power Supply
Supply Current (I
CC
)
V
CC
Voltage
Power Dissipation
Standby Current
Standby Power Dissipation
Digital Input
Digital Input (Low)
Digital Input (High)
Bias Voltages
Bias Voltage
Dynamic Performance
Voltage Gain
Total Harmonic Distortion
Frequency Response
Cross Talk
TEST
CONDITIONS
No Input
TEST
LEVEL
I
IV
I
I
I
I
I
I
I
I
V
V
MIN
SPT9401
TYP
26.0
5.0
130
22.5
113
0.1
2.0
2.3
5.9
0.2
-0.5
-35
MAX
35.0
5.5
175
50.0
UNITS
mA
V
mW
µA
µW
V
V
V
dB
%
dB
dB
4.5
Pin 5 Grounded
Pin 5 Grounded
Standby Pin 5
Standby Pin 5
Input Pins 2,4,6
0.0
1.8
2.0
5.4
0.3
V
CC
2.6
6.4
1.0
f
IN
= 1 kHz
f
IN
= 0.1 to 10 MHz
f
IN
= 1 MHz
TEST LEVEL CODES
All electrical characteristics are subject to the following
conditions:
All parameters having min/max specifications are guar-
anteed. The Test Level column indicates the specific
device testing actually performed during production and
Quality Assurance inspection. Any blank section in the
data column indicates that the specification is not tested
at the specified condition.
TEST LEVEL
I
II
III
IV
V
VI
TEST PROCEDURE
100% production tested at the specified temperature.
100% production tested at T
A
= +25
°C,
and sample tested
at the specified temperatures.
QA sample tested only at the specified temperatures.
Parameter is guaranteed (but not tested) by design and
characterization data.
Parameter is a typical value for information purposes only.
100% production tested at T
A
= +25
°C.
Parameter is
guaranteed over specified temperature range.
SPT
SPT9401
2
8/24/98
Figure 1 - Typical Interface Circuit
VCC = 5.0 V
+
+
0.01 µF
33 µF
1
R Input
75
Ω
+
4.7 µF
2
100 kΩ
2.5 V
Bias
11
9
12
Driver
+
75
Ω
75
Ω
R Output
47 µF
5 kΩ
5 kΩ
10
Driver
+
75
Ω
75
Ω
G Input
75
Ω
+
4.7 µF
4
100 kΩ
2.5 V
Bias
G Output
47 µF
5 kΩ
5 kΩ
8
+
75
Ω
75
Ω
B Input
75
Ω
+
4.7 µF
6
100 kΩ
2.5 V
Bias
5
Standby
Driver
B Output
47 µF
5 kΩ
3
5 kΩ
7
PACKAGE OUTLINE
12-Lead SSOP
INCHES
SYMBOL
A
B
C
D
E
MIN
0.165
0.189
0.012 typ
0.031 typ
0.000
0.047
0.264
0.004
0-10°
0.012
0.047 typ
0.016 typ
0.031 typ
0.213 typ
0.028
0.008
0.063
0.067 max
0.248
0.010
6.7
0.10
0-10°
0.3
1.2 typ
0.4 typ
0.8 typ
5.4 typ
0.7
MAX
0.181
0.205
MILLIMETERS
MIN
4.2
4.8
0.3 typ
0.8 typ
0.0
1.2
0.2
1.6
1.7 max
6.3
0.25
MAX
4.6
5.2
A
J
K
F
G
H
I
J
K
B
FG
L
M
N
L
M
N
O
C
D
E
I
O
H
Suggested Pad Layout
SPT
SPT9401
3
8/24/98
PIN ASSIGNMENTS
PIN FUNCTIONS
Name
R
IN
Function
Red (R) Signal Input
(typically 1 V
P-P
, AC coupled)
Green (G) Signal Input
(typically 1 V
P-P
, AC coupled)
Blue (B) Signal Input
(typically 1 V
P-P
, AC coupled)
Red (R) Output
(typically 2.0 V
P-P
, R
L
= 150
Ω,
AC coupled)
Green (G) Output
(typically 2.0 V
P-P
, R
L
= 150
Ω,
AC coupled)
Blue (B) Output
(typically 2.0 V
P-P
, R
L
= 150
Ω,
AC coupled)
Power Down Standby Mode Select
(Low = Standby, Internal Pull-Up)
+5.0 V Supply
Ground
VCC
RIN
GND
GIN
Standby
BIN
1
2
3
4
5
6
12 ROUT
11 VCC
10 GOUT
9
8
7
VCC
BOUT
GND
G
IN
B
IN
R
OUT
G
OUT
B
OUT
Standby
V
CC
GND
ORDERING INFORMATION
PART NUMBER
SPT9401SCR
TEMPERATURE RANGE
0 to +70
°C
PACKAGE TYPE
12-Lead SSOP
Signal Processing Technologies, Inc. reserves the right to change products and specifications without notice. Permission is hereby expressly
granted to copy this literature for informational purposes only. Copying this material for any other use is strictly prohibited.
WARNING - LIFE SUPPORT APPLICATIONS POLICY - SPT products should not be used within Life Support Systems without the specific
written consent of SPT. A Life Support System is a product or system intended to support or sustain life which, if it fails, can be reasonably
expected to result in significant personal injury or death.
Signal Processing Technologies believes that ultrasonic cleaning of its products may damage the wire bonding, leading to device
failure. It is therefore not recommended, and exposure of a device to such a process will void the product warranty.
SPT
SPT9401
4
8/24/98

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