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Agamem Microelectronics Inc. PRELIMINARY
DESCRIPTION
AA8642
Dual Video Amplifier with LPF
AA8642 is a dual low pass filter video amplifier with 6db gain, 75 output buffer and SAG correction. The 75 buffer is capable of driving two circuits. The SAG could reduce the output coupling capacitor. It supports 3V and 5V operation voltage and incorporates high performance 4-stage LPF which is ideal for removing DAC sampling noise. The power saving circuit provides the power saving function. The IC is available in 8-pin TSSOP (AA8642AP), 8-pin SOP (AA8642SP) and 8-pin DIP (AA8642PP) package.
FEATURES
1. 2. 3. 4. 5. 6. 7. 8. 9. Composite video driver with 6dB gain Support 3V and 5V operation voltage Built-in high performance 4-stage LPF Dual channels video amplifier SAG correction function A load sufficient for driving two circuits Low operating current, 18mA typical Internal voltage clamp circuit AC-Couple or DC-Couple output
APPLICATION
VCR Video Camera TV Video Player
AA8642 BLOCK DIAGRAM
Vcc Vin2
8
LPF
6.75MHZ
6dB
7
75
Amp
2.0K 2.2K
Driver
750
5 6
Vout2 Vsag2
Vin1
1
LPF
6.75MHZ
6dB
Amp
2.0K 2.2K
75
Driver
750
4 3 2
Vout1 Vsag1
1
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Agamem Microelectronics Inc. PRELIMINARY
PIN DESCRIPTION Symbol Vin1 GND Vsag1 Vout1 Vout2 Vsag2 VCC Vin2 Pin No Type 1 2 3 4 5 6 7 8 I O O O O I
AA8642
Dual Video Amplifier with LPF
Function Channel1 input terminal of 1V composite signal Ground Channel 1 SAG correction output Channel 1 output Channel 2 output Channel 2 SAG correction output 3V or 5V power supply Channel 2 input terminal of 1V composite signal
ABSOLUTE MAXIMUM RATING Ta = 25 Parameter Supply Voltage Operating Ambient Temperature Storage Temperature Symbol Vcc Ta Ts Rating MIN TYP -0.3 -25 -40 3 MAX 7 75 125 UNIT V CONDITION
NOTE : Stress above those listed under "Absolute Maximum Rating" may cause device permanent damage to the device. This stress-rating only factor and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for an extended period of time may affect device reliability of the device.
2
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Agamem Microelectronics Inc. PRELIMINARY
ELECTRICAL CHARACTERISTICS
AA8642
Dual Video Amplifier with LPF
Ta = 25 , Vcc = 3V
Parameter Supply Current Voltage Gain Frequency characteristic 1 Frequency characteristic 2 Output DC level SAG-Terminal Gain Differential Gain Differential Phase Crosstalk
Symbol Icc Gv Fc1 Fc2
Min
Typ 17
Max 20 6.5 -5
Unit Condition mA No input Signal Input Signal Freq = dB 4.43MHz, 1VP-P, measure VO1 SIN wave : 1V dB 6.75MHz/100kHz SIN wave : 1V dB 6.75MHz/100kHz
5.5
6
-25 1.0 1.2 45 1 1 -70 3 3 1.4
V dB VIN = 1VP-P, refer staircase signal VIN = 1VP-P, refer deg staircase signal V IN=1V 4.43M dB Sinewave %
GSAG DG DP CT
35
3
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Agamem Microelectronics Inc. PRELIMINARY
MEASUREMENT CIRCUIT
Tp1 Vin1
75 S1 H 4.7uF
AA8642
Dual Video Amplifier with LPF
Tp2 1
4.7uF H S2 75
Vin1
Vin2
Vin2
Gnd Tp5
22uF
2
Gnd
Vcc Tp6
1000pF 22uF 100uF
Vcc
Vout1
(6dB) S3 75 100uF S5
3
Vsag1
Vsag2
S6 100uF S4 75
Vout2
(6dB)
Vout3
4 Tp3
Vout1
Vout2 Tp4
400
1
Vout4
75
75
1
400
0.6V
2 2
0.6V
TEST METHODES
SWITCH CONDITIONS PARAMETER SYMBOL S1 Supply Current Voltage Gain lcc Gv H H S2 H H ON ON S3 S4 S5 S6 7PIN Sink Current Vout1 / Vin. Vout2 / Vin2 at Vin1(Vin2)=1MHz, 1Vpp, Sinewave Gv1M Voltage Gain at Vin1(Vin2)=1MHz, 1Vpp Gv10M Voltage Gain at Vin1(Vin2)=7MHz, 1Vpp Gf=Gv10M-Gv1M Measuring Vout3 at Vin1=Staircase Signal Measuring Vout3 at Vin1=Staircase Signal Vout2 / Vout1 at Vin1=4.43MHz 1Vpp Sinewave Vout1 / Vin2 at Vin2=4.43MHz 1Vpp Sinewave Gv1=Vout1 / Vin1, Gv2=Vout2/Vin2 Gch=Gv1-Gv2 Measuring at TP1 (TP2) TP3(TP4) Voltage; V01A(V02A), TP5(TP6) voltage. Vso1A(Vso2A) ON ON TP3(TP4) Voltage; V01A(V02A), TP5(TP6) voltage. Vso1B(Vso2B) Gsag=20log[(V01B-V01A) / (Vso1A-Vso1B)] Gsag=20log[(V02B-V02A) / (Vso2A-Vso2B)] CONDITIONS
Frequency Characteristic
Gf
H
H
ON
ON
Differential Gain Differential Phase Crosstalk Gain Oftest Input Clamp Voltage SAG Terminal Gain
DG DP CT Gch Vcl Gsag
H H H H H H H
H H L H H H H
ON ON ON ON
ON ON ON ON
4
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Agamem Microelectronics Inc. PRELIMINARY
APPLICATION CIRCUIT 1 -
AA8642
Dual Video Amplifier
AC-Couple output
4.7uF
Vin1
75
1
4.7uF
Vin1
Vin2
75
Vin2
Gnd
75 22uF
2
Gnd
Vcc
1000pF 100uF 22uF
Vcc
Vout1
75 100uF
3
Vsag1
Vsag2
100uF
75 75
Vout2
Vout1
4
Vout1
Vout2
Vout2
MEASUREMENT CIRCUIT 2
-
DC-Couple output
4.7uF
Vin1
75
1
4.7uF
Vin1
Vin2
75
Vin2
Gnd
75
2
Gnd
Vcc
1000pF 100uF
Vcc
Vout1
75
3
Vsag1
Vsag2
75 75
Vout2
Vout1
4
Vout1
Vout2
Vout2
5
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Agamem Microelectronics Inc. PRELIMINARY
AA8642
Dual Video Amplifier with LPF
TSSOP 8L - AA8642AP -PACKAGE DIMENSION
SYMBOLS A A1 A2 b C D E E1 e L y
DIMENSIONS IN MILLIMETERS DIMENSIONS IN INCHES MIN --0.05 0.80 0.19 0.09 2.90 6.20 4.30 --0.45 --0 NOM ----1.00 ----3.00 6.40 4.40 0.65 0.60 ----MAX 1.20 0.15 1.05 0.30 0.20 3.10 6.60 4.50 --0.75 0.10 8 MIN --0.002 0.031 0.007 0.004 0.114 0.244 0.169 --0.018 --0 NOM ----0.039 ----0.118 0.252 0.173 0.026 0.024 ----MAX 0.048 0.006 0.041 0.012 0.008 0.122 0.260 0.177 --0.030 0.004 8
NOTES: 1. Package body sizes exclude mold flash protrusions or gate burrs 2. Tolerance 0.1 (4 mil) unless otherwise specified 3. Coplanarity:0.1 4. Controlling dimension is millimeter whereas converted inch dimensions are not necessarily exact 5. Followed from jedec mo-153
6
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

Agamem Microelectronics Inc. PRELIMINARY
AA8642
Dual Video Amplifier with LPF
SOP-8 - AA8642SP - PACKAGE DIMENSION
SYMBOLS A A1 A2 b C D E e H L y
DIMENSIONS IN MILLIMETERS DIMENSIONS IN INCHES MIN 1.35 0.10 --0.33 0.19 4.80 3.80 --5.80 0.40 --0 NOM 1.60 --1.45 --------1.27 --------MAX 1.75 0.25 --0.51 0.25 5.00 4.00 --6.20 1.27 0.10 8 MIN 0.053 0.004 --0.013 0.007 0.189 0.150 --0.228 0.016 --0 NOM 0.063 --0.057 --------0.050 --------MAX 0.069 0.010 --0.020 0.010 0.197 0.157 --0.244 0.050 0.004 5. 8 2. 3. 4. NOTES: 1. Package body sizes exclude moldflash protrusions or gate burns. Tolerance 0.1 (4 mil) unless otherwise specified Coplanarity: 0.1 mm Controlling dimension is millimeter converted inch dimensions are not necessarily exact Followed from JEDEC MS-012
7
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
2007/10/15
Agamem Microelectronics Inc. PRELIMINARY
AA8642
Dual Video Amplifier with LPF
DIP-8 - AA8642PP - PACKAGE DIMENSION
8
2007/10/15
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

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