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TECHNICAL NOTE
High performance video signal Switcher
Triple Circuits Video Signal Switchers
BA7602F, 03F, 06F/FS, 07F, 09F, 27FV
Description These video switching ICs, which contain two or three 2-input circuits, were developed for switching TV, DVD, and other video signals. Input pin formats can be selected from bias mode (R=20 k), sync-tip mode, and pedestal clamp mode. Having a large dynamic range and broad frequency characteristics, these switches are suited to a wide range of applications from audio signals to video signals. Features 1) Contain three 2-input, 1-output switch circuits (BA7602F,03F,06F/06FS,07F,09F,27FV) 2) Power supply voltage (4.5~5.5 V) 3) Low power consumption 4) Good frequency characteristics 5) Large dynamic range 6) Bias input (BA7602F) Sync-tip clamp input (BA7603F) Pedestal clamp input (BA7606F/06FS) Bias input + sync-tip clamp input (BA7607F,09F, 27FV) 7) Large input impedance (Typ.20k) 8) Fast switching speed (Typ. 50ns) Use For switching TV, DVD, and Other video signals
Lineup Circuit current mA 14.0 13.0 15.0 12.5 12.5 12.5 Distortion 0.007 0.007 0.007 Maximum output level VP-P 3.1 2.9 2.6 3.0 3.0 3.0
Part No. BA7602F BA7603F BA7606F/FS BA7607F BA7609F BA7627FV
Built-in circuit 2 in 3 circuits 2 in 3 circuits 2 in 3 circuits 2 in 3 circuits 2 in 3 circuits 2 in 3 circuits
Input type Bias Clamp Pedestal Clamp Clamp 2 Bias1 Clamp 1 Bias 2 Clamp 2 Bias1
Package SOP16 SOP16 SOP16/ SSOP-A16 SOP16 SOP16 SSOP-B16
Aug. 2008
Absolute Maximum RatingsTa=25 Parameter Symbol Supply voltage Vcc BA7602F BA7603F BA7606F Power BA7607F Pd dissipation BA7609F BA7606FS BA7627FV Operating temperature Topr Storage temperature Tstg
Limits 9 500 *1
Unit V
mW 650 *2 450 *1 4085 55125

*1 Deratings is done at 5.0mW/ above Ta=25.BA7604N, 05N ,02F, 03F, 06F, 07F, 09F, 27FV *2 Deratings is done at 6.5mW/ above Ta=25.BA7606FS Operating RangeTa=25 Parameter Symbol Supply voltage Vcc
Min. 4.5
Typ. 5.0
Max. 5.5
Unit V
Electrical characteristics (Unless otherwise noted, Ta=25 and Vcc=5.0V) Typical value Parameter Symbol 02F 03F 06F/FS 07F
Circuit current Icc Vom1 Vom2 VomU VomD Gv CT Gf THD VTH Vct 14.0 3.1 13.0 2.9 15.0
09F
12.5
27FV
Unit
mA VP-P VP-P VP-P VP-P
Conditions
f=1kHz, THD=0.5%, with clamp f=1kHz, THD=0.5%, without clamp Dynamic range on positive side of clamp level Dynamic range on negative side of clamp level =1MHz, VIN1 VP-P =4.43MHz, VIN=1 VP-P 10MHz/1MHz, VIN= VP-P =1kHz, 1Vp-p, Bias type H: IN1 L: IN2 Only BA7606F/FS
Maximum output level1 Maximum output level2 Maximum output level U Maximum output level D
Clamp Bias Pedestal clamp Pedestal clamp
2.9 3.0
1.65 0.95 0 -65
Voltage gain Interchannel crosstalk Frequency characteristic Total harmonic distortion CTL pin switching level Clamp input level
0
-1
0 0.007 2.5
dB dB dB % V V
L0.75
H2.2
Cautions on use 1) Numbers and data in entries are representative design values and are not guaranteed values of the items. 2) Although we are confident in recommending the sample application circuits, carefully check their characteristics further when using them. When modifying externally attached component constants before use, determine them so that they have sufficient margins by taking into account variations in externally attached components and the Rohm LSI, not only for static characteristics but also including transient characteristics. 3) 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. 4) 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. 5) Thermal design Perform thermal design in which there are adequate margins by taking into account the allowable power dissipation in actual states of use. 6) Shorts between pins and misinstallation When mounting the LSI on a board, pay adequate attention to orientation and placement discrepancies of the LSI. If it is misinstalled 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. 7) Operation in strong magnetic fields Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction. 8) A bias input coupling capacitor on the order of 10 F~33 F is appropriate. 9) A clamp input coupling capacitor on the order of 0.1 F~1 F is appropriate. 10) Make the clamp pulse width of the BA7606F/FS at least 1 s. 2/8
Block diagram
Fig.1 BA7602F
Fig.2 BA7603F
Fig.3 BA7606F/FS
Fig.4 BA7607F, BA7627FV
CTL pin settings CTL OUTPUT IN2 IN1
Fig.5 BA7609F
3/8
Reference data Pin DC voltageVCC=5V, Ta=25 Pin DC voltage (V) Pin No. BA7602F 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3.27 4.91 1.84 0 1.84 1.84 4.91 3.27 3.27 0 3.27 4.91 5.00 3.27 0 3.27 BA7603F 2.05 4.91 0.65 0 0.65 0.65 4.91 2.05 2.05 0 2.05 4.91 5.00 2.05 0 2.05 BA7606F/FS 2.96 4.91 1.54 0 1.54 1.54 4.91 2.96 2.96 4.97 2.96 4.91 5.00 2.96 0 2.96 BA7607F BA7627FV 2.05 4.91 0.65 0 0.65 1.76 4.91 2.48 2.48 0 2.05 4.91 5.00 2.05 0 2.05 BA7609F 2.48 4.91 1.76 0 1.76 0.65 4.91 2.05 2.05 0 2.48 4.91 5.00 2.48 0 2.48
Input/Output impedance
Limits (Typical) 02F Bias Clamp 20k 30 30 03F 06F/FS 1.7M 30 07F/27FV 20k 09F Unit
Parameter Input impedance Input impedance
Output impedance
The 6pin output impedance in the BA7606F/FS is 130.
4/8
Measurement circuit 1/2 (BA7602F,BA7603F,BA7607F, BA7609F)
Fig.6 BA7602F, BA7603F, BA7607F, BA7609F, BA7627FV
5/8
Measurement circuit 2/2 (BA7606F/FS)
Input waveform
Output waveform
Fig.7 BA7606F/FS
6/8
Reference data
30 CIRCUIT CURRENT : Icc (mA) 25 20 15
BA7603F
Vcc=5.0V
0 -0.5
BA7603F
Ta=25 Vcc=6.0V Vcc=5.0V
0 -0.5 -1 GAIN (dB) -1.5 -2 -2.5 -3 -3.5 -4
BA7603F
Vcc=5.0V Ta=-30 Ta=25
Ta=-30
GAIN : Gf (dB)
-1 -1.5 -2 -2.5 -3
Ta=25 Ta=90
10 5 0 4 5 6 7 SUPPLY VOLTAGE : Vcc (V)
Vcc=4.0V
Ta=90
-3.5 -4 0.1 1 FREQUENCY : f (MHz) 10 100
0.1
1 FREQUENCY : f (MHz)
10
100
Fig.8 Circuit current vs. Supply voltage
BA7606F
Vcc=5.0V, Ta=25
Fig.9 Frequency characteristics vs. Supply voltage
BA7606F
INPUT IN2a(1pin) f=1MHz,1Vpp Vcc=5.0V, Ta=25
Fig.10 Frequency characteristics vs. temperature
BA7606F
INPUT IN2a(1pin) f=1MHz,1Vpp Vcc=5.0V, Ta=25
0 -10 -20 GAIN (dB) -30 -40 -50 -60 -70 -80 0.1
OUTa (3pin) 500mV/DIV
OUTa (3pin) 500mV/DIV CTLa (2pin) 2V/DIV 20nsec/DIV 0.2 0.3 0.5 CTLa (2pin) 2V/DIV 20nsec/DIV
1
2
3
5
10
FREQUENCY (MHz)
Fig.12 Switching characteristics1 OFFON
Fig.13 Switching characteristics2 ONOFF
Fig.11 Interchannel crosstalk
Selection of order type
B
A
7
6
0
2
F
E
2
Part. No BA7602F BA7603F BA7606F/FS BA7607F BA7609F BA7627FV
Tape and Reel information E2 BA7602F E2 BA7603F E2 BA7606F/FS E2 BA7607F E2 BA7609F E2 BA7627FV
SOP16

Tape Quantity
10.00.2
16 9
Embossed carrier tape 2500pcs E2
(The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand)
6.20.3
4.40.2
1
8
1.50.1
0.150.1 0.1
0.11
1.27
0.40.1
0.3Min.
Direction of feed
1234
(Unit:mm)
Reel
1234
When you order , please order in times the amount of package quantity.
1234
1Pin
1234
1234
Direction of feed
1234
1234
1234
7/8
SSOP-A16

Tape Quantity
6.60.2
6.20.3 1.50.1 4.40.2 0.11 0.3Min.
16 9
Embossed carrier tape 2500pcs E2
(The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand)
Direction of feed
1
8
0.150.1 0.1
0.8
1234
1234
1234
1234
1234
1234
1234
1234
0.360.1
Reel Unit:mm)
1pin
Direction of feed
When you order , please order in times the amount of package quantity.
SSOP-B16

Tape Quantity
5.0 0.2
1.15 0.1 6.4 0.3 0.1 4.4 0.2
16 9
Embossed carrier tape 2500pcs E2
(The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand)
1
8
0.15 0.1
0.1 0.65 0.22 0.1
0.3Min.
Direction of feed
1234
Reel
1234
Unit:mm)
When you order , please order in times the amount of package quantity.
1234
1pin
1234
1234
Direction of feed
Catalog No.08T295A '08.8 ROHM (c)
1234
1234
1234

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