High-performance Video Driver Series Y/C MIX Circuit built-in Video Driver No.09065EAT02 BA7664AFV Description BA7664AFV is a 75 video driver, packaged in SSOP-B8, incorporating a 6dB amplifier, Y/C MIX circuit, sag compensation, and Mute function. This driver can drive two 75 loads. While the composite Y signal input is sync-tip-clamp, the chroma input has an internal termination at 20k . 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=25C) Parameter Symbol Limits Unit Power Supply Voltage Vcc 8 V Power Dissipation Pd 350 *1 mV Operating Temperature Range Topr -25+75 C Storage Temperature Range Tstg -55+125 C *1 At the time of glass epoxy (FR-4) PCB mounting (70mm70mm1.6mm). Reduce by 3.5 mW/ C over 25 C Operating range (Ta=25C) Parameter Symbol Min Typ Max Unit Supply voltage Vcc 4.5 5.0 5.5 V www.rohm.com 1/4 2009.04 - Rev.A 2009 ROHM Co., Ltd. All rights reserved. Technical Note BA7664AFV Electrical characteristics Electrical characteristics (unless otherwise specified, Vcc=5V, Ta=25C) Parameter Symbol Min Typ Max Unit Conditions Circuit Current No-signal I 6.1 12.2 18.3 mA CC Maximum Output Level f=1kHz,THD=1% V V 2.6 3.0 - V 02 om P-P Voltage Gain G -1.0 -0.2 0.6 dB f=4.43MHz,1Vpp/V V 01 Frequency Characteristics f=7MHz/1MHz,1V /V G -1.5 -0.5 0.5 dB P-P 01 F MUTE Attenuation f=4.43MHz,1V /V M - -60 - dB P-P 01 T - Mute Threshold H V 2.2 - VCC V THH Mute Threshold L V 0 - 0.7 V - THL Input Impedance Chroma input terminal Z 16 20 24 k IN Supply Current in Mute I - 1.3 2.6 mA MUTEAH MUTE Guaranteed design parameters (unless otherwise specified, Vcc=5V, Ta=25C) Parameter Symbol Min Typ Max Unit Conditions Differential Gain DG - 1.0 2.0 % V =1V Standard staircase signal IN P-P Differential Phase DP - 0.5 2.0 DEG V =1V Standard staircase signal IN P-P Block diagram / Application circuit Place decoupling and bypass capacitors near the IC Put decoupling capacitors near the IC. MUTE 1 8 Open or GND 47uF 0.1uF 75 1uF 1000uF 6dB 75 2 7 75 3 6 20k 0.1uF CHROMA MUTE 4 5 Open or GND When sag compensation function is used. 100uF 6dB 75 75 7 75 22uF 8 The application circuit is recommended for use. Make sure to take into account the tolerance characteristics of When using the circuit, make sure to confirm the adequnacy of the characteristics. the external components, as well as the 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 2/4 2009.04 - Rev.A 2009 ROHM Co., Ltd. All rights reserved.