High-performance Video Driver Series
Y/C MIX Circuit built-in
Video Driver
BA7664AFV
No.09065EAT02
●Description
BA7664AFV is a 75Ω video driver, packaged in SSOP-B8, incorporating a 6dB amplifier, Y/C MIX circuit, sag compensation,
and Mute function. This driver can drive two 75Ω loads. While the composite Y signal input is sync-tip-clamp, the chroma
input has an internal termination at 20kΩ. The device also incorporates a power save circuit by activated when the output is
under 0.2V.
●Features
1) A low consumption electric power movement
2) Built-in output mute circuit
3) Built-in power save circuit
4) Built-in output protection circuit
5) Low output coupling capacitor value can be used due to a built-in sag compensation circuit
6) The driver can have two loads (each channel)
7) Built-in Y/C MIX circuit
●Applications
DVD, DVC, DSC, STB, and visual instruments.
●Absolute
maximum ratings
(Ta=25°C)
Parameter
Power Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
Vcc
Pd
Topr
Tstg
Limits
8
350 *1
-25½+75
-55½+125
Unit
V
mV
°C
°C
*1 At the time of glass epoxy (FR-4) PCB mounting (70mm×70mm×1.6mm).
Reduce by 3.5 mW/C over 25C
●Operating
range
(Ta=25°C)
Parameter
Supply voltage
Symbol
Vcc
Min
4.5
Typ
5.0
Max
5.5
Unit
V
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/4
2009.04 - Rev.A
BA7664AFV
●Electrical
characteristics
Electrical characteristics (unless otherwise specified, Vcc=5V, Ta=25°C)
Parameter
Symbol
Min
Typ
Max
Unit
Circuit Current
I
CC
6.1
12.2
18.3
mA
Maximum Output Level
V
om
2.6
3.0
-
V
P-P
Voltage Gain
-1.0
-0.2
0.6
dB
G
V
Frequency Characteristics
G
F
-1.5
-0.5
0.5
dB
MUTE Attenuation
M
T
-
-60
-
dB
Mute Threshold
“H”
V
THH
2.2
-
VCC
V
Mute Threshold
“L”
V
THL
0
-
0.7
V
Input Impedance
Z
IN
16
20
24
kΩ
Supply Current in Mute
-
1.3
2.6
mA
I
MUTE
Guaranteed design parameters
Parameter
Differential Gain
Differential Phase
(unless otherwise specified, Vcc=5V, Ta=25°C)
Symbol
DG
DP
Min
-
-
Typ
1.0
0.5
Max
2.0
2.0
Unit
%
DEG
Technical Note
Conditions
No-signal
f=1kHz,THD=1% V
02
f=4.43MHz,1Vpp/V
01
f=7MHz/1MHz,1V
P-P
/V
01
f=4.43MHz,1V
P-P
/V
01
-
-
Chroma input terminal
MUTEA“H”
Conditions
V
IN
=1V
P-P
Standard staircase signal
V
IN
=1V
P-P
Standard staircase signal
●Block
diagram / Application circuit
Place decoupling and bypass capacitors near the IC
Put decoupling capacitors near the IC.
1
Open or GND
MUTE
8
47uF
0.1uF
75Ω
1uF
1000uF
2
6dB
75Ω
7
75Ω
3
6
0.1uF
20k
4
CHROMA MUTE
5
Open or GND
When sag compensation function is used.
6dB
75Ω
7
8
100uF
75Ω
75Ω
22uF
※
Make sure to take into account the tolerance characteristics of
※
The application circuit is recommended for use.
When using
components, as well as the
confirm the adequnacy of the characteristics.
the external
the circuit, make sure to
IC power dissipation limits.
Make sure to leave an adequate margin for external components includingstatic
and transitional characteristics as well as dispersion of the IC.
Fig.1
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2/4
2009.04 - Rev.A
BA7664AFV
●Equivalent
circuit
Pin.No
Pin name
IN
OUT
Voltage
Equivalent circuit
Technical Note
Function
Mute control terminal
1
5
MUTEA
MUTEB
15k
○
―
―
14k
Pin1 MUTEA - “H” = mute on
Pin5 MUTEB - “H” = only
chroma mute on
Signal input terminal
2
Y
IN
○
―
2.0V
Sync-tip-clamp input for the
composite Y signal.
3
GND
―
―
0V
GND
Ground terminal
Signal input terminal
4
C
IN
○
―
2.0V
20k
This pin is a chroma signal
input. Input terminal is 20kΩ.
Signal output terminal
Pin6
6
7
MIXOUT2
MIXOUT1
―
○
0.9V
0.95V
Pin7
Pin7 is Y/C MIX signal
output terminal.
Power save mode is active
when output is set under
0.2V.
Pin6 is a sag compensator
input.
VCC
8
V
CC
―
―
5.0V
Power supply terminal
●Cautions
on use
1.
2.
Numbers and data in entries are representative design values and are not guaranteed values of the items.
Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to
verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits
may cause variations in both static and transient characteristics for external components as well as this ROHM IC. Allow
for sufficient margins when determining circuit constants.
Absolute maximum ratings
Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range
(Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open
mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using
the IC at times where the absolute maximum ratings may be exceeded.
GND potential
Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the
GND at any time, regardless of whether it is a transient signal or not.
Thermal design
Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd)
in actual states of use.
Short circuit between terminals and erroneous mounting
Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other
components on the circuits, can damage the IC.
Operation in strong electromagnetic field
Using the ICs in a strong electromagnetic field can cause operation malfunction.
3.
4.
5.
6.
7.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
3/4
2009.04 - Rev.A
BA7664AFV
●Selection
of order type
Technical Note
B
A
7
6
6
4
TYPE
BA7664AFV
A
F
V
E
2
Package, Foaming specifications
SSOP-B8
<Dimension>
<Tape and Reel information>
Tape
Quantity
3.0±0.2
8
5
Embossed carrier tape
2500pcs
E2
(Correct direction: 1pin of product should be at the upper left when you
hold reel with the left hand, and you pull out the tape with the right hand)
6.4±0.3
4.4±0.2
1
4
0.15±0.1
0.1
1.15±0.1
0.1
0.22±0.1
0.65
0.3Min.
Direction
of feed
1234
1234
1234
1234
1234
1234
1234
1234
(0.52)
Reel
1pin
Direction of feed
（Unit:mm)
※Orders
are available in complete units only.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
4/4
2009.04 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
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
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
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, commu-
nication 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
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,
fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of
any of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
R0039A
京公网安备 11010802033920号
EEWORLD
