ROHM BH7616HFV

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Structure :
Silicon Monolithic Integrated Circuit
Product name :
Video driver with LPF for mobile applications
Model:
BH7616HFV
Outer dimensions :
Fig1 HVSOF6 ( Plastic mold )
Function :
・
・
・
・
・
・
・
Output impedance becomes High at the time of standby. (1.5Megohm min)
Built in 6dB AMP
Built in LPF(8order) for Video input (f=4.5MHz)
Sync Tip clamp circuit
HVSOF6 small package
Built in standby function
STBY terminal=
Low : ACTIVE
High: STANDBY
■ Absolute maximum rating (Ta=25℃)
Parameter
Symbol
Rating
Unit
Supply voltage
Vcc
7
V
Power Dissipation
Pd
*410
mW
Operating temperature range
Topr
-40 ~ +85
℃
Storage temperature range
Tstg
-55~+125
℃
*For operation above 25 free-air temperature , power dissipation is decreasing 4.1mW/
in case mounting the ROHM standard grass-epoxy application board (70×70×1.6mm)
■ Operating voltage range
Parameter
Operating voltage range
Symbol
Min.
Std.
Max.
Vcc
2.6
3.0
5.5
This product is not designed to protect itself against radioactive rays.
REV. C
Unit
V
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■Electrical characteristics
Parameter
Circuit current
(Ta=25℃,VCC=3V unless otherwise specified)
Specifications
Symbol
Unit
Testing condition
Min.
Std.
Max.
-
7
11
mA No Signal
ACTIVE
ICC1
STANBY
ICC2
-
0. 0
2
µA
Standby mode
High Level
IthH
-
-
60
µA
6pin=3.0V
Low Level
IthL
-
-
4
µA
6pin=0.2V
High Level
VthH
1.2
-
Vcc
V
Standby OFF
Low Level
VthL
0
-
0.45
V
Standby ON
GV
+5.5
+6.0
+6.5
dB
Vomv
2.2
2.6
-
Vpp
f=10KHz、THD=1%
1
Gf1
-1.0
0.1
0.5
dB
f=4.5MHz/100KHz
2
Gf2
-7.0
-4.0
0.3
dB
f=8.2MHz/100KHz
3
Gf3
-
-45.0
-
dB
f=19MHz/100KHz
SNY
-
-67.0
-
dB
AM
SNCA
-
-77.0
-
dB
PM
SNCP
-
-65.0
-
dB
Different Gain
DG
-
0.7
3.0
%
Different Phase
DP
-
0.7
3.0
deg
Non-signal output terminal voltage
Standby mode
output terminal impedance
Vout
-
0.2
0.4
V
Zout
1.5
-
-
MΩ
Standby SW
input current Voltage
Standby SW
Change Voltage
Voltage gain
Maximum output level
Frequency
characteristics
Y signal output S/N
C signal output S/N
■Control Terminal
PARAMETER
STATUS
OPEN
H
L
STANDBY(6PIN)
■Physical dimensions
NOTE
STANDBY
STANDBY
ACTIVE
Max2.8 include.BURR
Max1.8 include.BURR
B G
Lot No
Fig1 HVSOF6 ( Plastic mold )
REV. C
Vin=100KHz, 1.0Vpp
Band 100KHz~6MHz
Terminal impedance 75Ω
100% White video signal
Band 100Hz~500KHz
Terminal impedance 75Ω
100% chroma video signal
Vin= 1.0Vp-p
Standard stair step signal
Supply Vout = 3V
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■Application circuit example 1 (When output terminal is used sharing with input terminal)
Stby
GND
1
C1
6
Sync_Tip
Clamp
Stby
Vin
Vsag
75ohm
C3
5
2
22uF
VIN
0.1uF
75ohm
C2
Vcc
Vout
3
100uF
75
Ω
8 order
LPF
6dB
C4
4
Vcc
22uF
Audio in / Logic in etc
図2-1
Since a video driver output becomes high impedance at the time of standby, even if it shares a video
output terminal with an input terminal, operation of an input terminal is not influenced.
■Application circuit example 2 (SAG correction)
Stby
1
C1
6
Vsag
Vin
2
5
Vout
3
VIN
Vcc
75Ω
8 order
LPF
6dB
100uF
Vsag Capacitor (C1)
VOUT Capacitor (C2)
C3
0.1uF
22uF
C2
Stby
33μF
68μF
33μF
47μF
4
C4
22uF
75ohm
Sync_Tip
Clamp
75ohm
GND
Vcc
33μF
33μF
図2-2
SAG correction
In order to make the SAG of the video signal as small as possible, we recommend the values of the application
circuit diagram for output coupling capacitor capacitance.
If reducing capacitance due to the demands of miniaturization or the like, check the SAG characteristic for an
alternating black and white bounce signal *1, H-bar signal *2, or other signal for which a SAG effect readily
occurs and use a capacitance that satisfies the demands of the set being used.
As a reference, try the combinations shown below when reducing capacitance. As the capacitance of the
VOUT capacitor is made smaller, SAG becomes greater.
*1,*2: TG-7 U705 unit or other
REV. C
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■Application circuit example 3 (Using after removing output coupling capacitor)
Stby
GND
1
Sync_Tip
Clamp
6
Stby
Vin
Vsag
2
5
75ohm
C3
0.1uF
Vcc
Vout
3
VIN
75ohm
75Ω
6dB
8 order
LPF
4
C4
22uF
Vcc
図2-3
By eliminating the output coupling capacitor, not only can you reduce board space and product cost, but
improvement of the SAG characteristic also can be realized due to the fact that the low-band frequency
characteristic is improved.
However, since direct current will flow in a set connected on the opposite side due to eliminating the output
coupling capacitor, pay close attention to the specifications of what is connected in conjunction with using it.
Moreover, characteristics such as circuit current, differential gain, and differential phase differ as shown below.
With Output Coupling
Without Output Coupling
Capacitor
Capacitor
Circuit Current (If no signal)
7.1 mA
7.8 mA
Circuit Current (If color bar signal output)
8.3 mA
14.3 mA
Differential Gain (DG)
0.7%
1.0%
Differential Phase (DP)
0.7°
0.3°
The values shown above are reference values. They are not guaranteed values
Parameter
■Caution of use
1) Absolute maximum ratings
If applied voltage, operating temperature range, or other absolute maximum ratings are exceeded, the LSI may be
damaged. Do not apply voltages or temperatures that exceed the absolute maximum ratings. If you think of a case in
which absolute maximum ratings are exceeded, enforce fuses or other physical safety measures and investigate how not
to apply the conditions under which absolute maximum ratings are exceeded to the LSI.
2) GND potential
Make the GND pin voltage such that it is the lowest voltage even when operating below it. Actually confirm that the
voltage of each pin does not become a lower voltage than the GND pin, including transient phenomena.
3) Shorts between pins and mis-installation
When mounting the LSI on a board, pay adequate attention to orientation and placement discrepancies of the LSI. If it is
mis-installed and the power is turned on, the LSI may be damaged. It also may be damaged if it is shorted by a foreign
substance coming between pins of the LSI or between a pin and a power supply or a pin and a GND.
4) Operation in strong magnetic fields
Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction.
5) Input terminating resistance
Since it will become easy to come to the synch-tip part of a video output signal out of ripple if terminus impedance of an
input terminal (5PIN) is made high, please use it less than 1.5kohm after sufficient evaluation also including the
temperature characteristic.
6) Bypass capacitor
To minimize the risk of high-frequency oscillation, the power supply's bypass capacitor should be placed as close as
possible to the Vcc pin.
REV. C
Notice
Notes
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The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
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use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
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