BH7856FS

1/4 Structure Product name Type ： ： ： Silicon Monolithic Integrated Circuit 6ch Video driver ( for DVD ) BH7856FS Fig.1 SSOP-A32（Plastic Package） Fig.2 Outer dimensions ： Block diagram Feature ： ： 1) Built in LPF with characteristics suited to DVD players and recorders (Y, C, Y/C MIX : 6.75MHz, Py/G ,Pb/B, and Pr/R : 13.5MHz) 2) Built in 6ch video driver (Y, C, Y/C MIX, Py/G, Pb/B, and Pr/R ) 3) 75Ω×2 Driver (Y, C, Y/C MIX,Py/G, Pb/B and Pr/R) 4) Built in MUTE switch ( double as power save function ) 5) Built in S1/S2 circuit 6) Built in selection switch for SCART connector (CVBS,R or C,Y output) ○Absolute Maximum Ratings(Ta=25℃) Parameter Supply Voltage Power Dissipation Symbol VccMAX Pd Limits 6.0 1.35 *1 Unit V W Terminal applied voltage Vin -0.3～Vcc+0.3 V Storage Temperature Ｔstg -55 ～ +125 ℃ Range *1 When mounted on a 100mm×100mm×1.6mmt PCB board, the rated values are reduced at 13.5mW/℃ when temperature exceeds 25℃. (Glass epoxy substrate) ○Operating Range Parameter Symbol Limits Unit Supply Voltage Vcc +4.5 ～ +5.5 V Operation Temperature Ｔopr -40 ～ +85 ℃ Range * This product is not designed for protection against radioactive rays. REV. A 2/4 ○Electrical characteristics （Ta= 25℃, Vcc=5.0V Unless otherwise specified） Parameter Circuit current 1 Circuit current 2 Circuit current 3 Circuit current 4 Output dynamic range 1 Output dynamic range 2 Voltage gain C Symbol ICC1 ICC2 ICC3 ICC4 VOM1 VOM2 GVC GVCPr GVMIXC GVMIXY GVCVIN GVYCV GVY GVPY GVPb GVPr f11 f12 f21 f22 CT ＭＴ L S-DCOUT Voltage M H MUTE Control Voltage VSDCL VSDCM VSDCH VTHH VTHL Specification Min Typ Max 50 25 15 1 2.4 2.4 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 -1.5 － -1.5 － － － － 1.9 4.3 2.0 GND 75 45 35 2.5 3.0 2.8 6 6 6 6 6 6 6 6 6 6 -0.5 -33 -0.5 -30 -60 -60 0.1 2.1 4.6 － － 100 65 55 5 － － 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 6.4 0.5 -25 0.5 -23 -50 -50 0.5 2.3 － VCC 0.7 Unit mA mA mA mA Vpp Vpp dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB V V V V V Testing condition No signal 6ch Active MODE No signal Mute1 ON (C,Y,CV system) No signal Mute2 ON (Py/G, Pb/B, Pr/R system) No signal Mute1 & Mute2 ON f=10 kHz, THD = 1.0% C, Py/G(BIAS), Pｂ/B,Pｒ/R f=10 kHz, THD = 1.0% CV,Y,MIX, Py/G(CLAMP) CIN：f=3.58MHz, 1Vpp CIN：f=3.58MHz, 1Vpp CIN：f=3.58MHz, 1Vpp YIN：f=1MHz, 1Vpp CVIN：f=1MHz, 1Vpp YIN：f=1MHz, 1Vpp YIN：f=1MHz, 1Vpp Py/G IN：f=1MHz, 1Vpp Pb/B IN：f=1MHz, 1Vpp Pr/R IN：f=1MHz, 1Vpp fin=100k/6.75MHz, 1Vpp fin=100k/27MHz, 1Vpp LPF13.5MHz fin=100k/13.5MHz, 1Vpp LPF13.5MHz fin=100k/54MHz, 1Vpp fin=4.43MHz, 1Vpp CIN : f = 4.43MHz, 1Vpp YIN,CVIN,Py/GIN,Pb/BIN,Pr/RIN : f=1MHz, 1Vpp RL=10kΩ+100kΩ S1=L,S2=L RL=10kΩ+100kΩ S1=L,S2=H S1=H,S2=H RL=10kΩ+100kΩ S1=H,S2=L MUTE OFF MUTE ON C-Pr/R(SEL3="H") MIX(C) MIX(Y) CV Y-CV(SEL3="H") Y Py/G (CLAMP/BIAS) Pb/B Pr/R Frequency Characteristics 1 (CIN、CVIN、YIN) Frequency Characteristics 2 (Py/G IN、Pb/B IN、Pr/R IN) Crosstalk MUTE attenuation REV. A 3/4 Parameter SEL1 （CV /MIX） Control Voltage Symbol VTHH VTHL VTHH VTHL VTHH Min 2.0 GND 2.0 GND 2.0 Specification Typ Max － － － － － VCC 0.7 VCC 0.7 VCC Unit V V V V V Testing condition CV MODE CVIN→CV_Y OUT MIX MODE CIN,YIN→CV_Y OUT BIAS MODE Py/G IN→Py/G OUT CLAMP MODE Py/G IN→Py/G OUT SCART OUT MODE YIN→CV_Y OUT CIN→Pr/R_C OUT 6ch OUT MODE CVIN→CV_Y OUT Pr/R IN→Pr/R_C OUT High Low ＶH= 4.5V VL = 0.4V SEL2 (BIAS/CLAMP) Control Voltage SEL3 (SCART OUT/6ch OUT) Control Voltage VTHL VTHH VTHL ＩlH ＩlL GND 2.0 GND － － － － － － － 0.7 VCC 0.7 155 20 V V V μA μA S1/S2 Control Voltage Control terminal Input current ○Outer dimensions BH7856FS Lot. No. Fig.1 Outer dimensions SSOP-A32( Unit ： mm ) ○Operation mode table Table.1 Operation mode table Operation Mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 MUTE1 L L L L L L L L H H H H H H H H MUTE2 L L L L H H H H L L L L H H H H SEL1 L L H H L L H H L L H H L L H H SEL3 L H L H L H L H L H L H L H L H COUT × × × × × × × × CIN CIN CIN CIN CIN CIN CIN CIN CV_Y OUT × × × × × × × × YC MIX YIN CV IN YIN YC MIX YIN CV IN YIN Output Signal YOUT Py/G OUT Pb/B OUT Pr/R_C OUT × × × × × × × × × × × × × × × × × Py/G IN Pb/B IN Pr/R IN × × × × × Py/G IN Pb/B IN Pr/R IN × × × × YIN × × × YIN × × CIN YIN × × × YIN × × CIN YIN Py/G IN Pb/B IN Pr/R IN YIN × × CIN YIN Py/G IN Pb/B IN Pr/R IN YIN × × CIN * When SEL3＝"H", Py,Pb,Pr block power on without MUTE2="H", but Py and　Pb block are no signal output. * "×" express no output. And other output signal from input pin written in table. REV. A 4/4 ○Block diagram Vcc1 S1 S2 CIN MUT E1 (MUT E OFF/ON) CVIN SEL1(CV/MIX) Y IN B IA S SEL2( BIAS/ CLAMP) Py/GIN T EST Pb/B IN MUT E2 (MUT E OFF/ON) Pr/RIN Vcc2 1 6.75 MHz LPF 75 Ω S-DCOUT S1/S2 75 Ω 32 31 30 29 SCART/6ch SEL3 6.75 MHz LPF 75Ω 28 27 26 Clamp BIAS 13.5 MHz LPF BIAS 11 Clamp 12 13 14 15 16 BIAS 6dB 13.5 MHz LPF SEL3 MUTE2(Py, Pb, Pr BLOCK) BIAS 6dB 13.5 MHz LPF H L 75Ω 19 18 17 L H 6dB L： ON H： OFF SEL3 22 75Ω 21 20 6dB L ：ON H ：OFF SEL3 25 75Ω 24 23 ○Pin number/Pin name COUT S-DCOUT CV_Y OUT CV_Y OUT SAG SEL3 （SCARTOUT / 6chOUT ) Y OUT Y OUT SAG GND Py/GOUT Py/GOUT SAG GND Pb/B OUT Pb/B OUT　SAG GND Pr/R_COUT Pr/R_COUT SAG No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pin name Vcc1 S1 S2 CIN MUTE1(OFF/ON) CV IN SEL1(CV/MIX) Y IN BIAS SEL2(BIAS/CLAMP) Py/G IN TEST Pb/B IN MUTE2(OFF/ON) Pr/R IN Vcc2 Pr/R_C OUT SAG Pr/R_C OUT GND Pb/B OUT SAG Pb/B OUT GND Py/G OUT SAG Py/G OUT GND YOUT SAG YOUT SEL3 (SCART OUT/6ch OUT) CV_Y OUT SAG CV_Y OUT S-DCOUT COUT + 2 3 4 5 6 7 8 9 10 BIAS 6dB L H 6.75 MHz LPF L H MUTE1(C,CV, Y Block) Clamp 6dB *12pin is for the test . Please shor t the test pin to GND. Fig.2 Block diagram Table.2 Control pin function Pin name SEL1 SEL2 SEL3 MUTE1 MUTE2 State H L H L H L H L H L Function CVIN→CV_Y OUTPUT MODE MIX(CIN,YIN)→CV_Y OUTPUT MODE BIAS MODE (Py/G INPUT) CLAMP MODE (Py/G INPUT) SCART OUTPUT MODE 6ch OUTPUT MODE C, CV, Y BLOCK MUTE OFF C, CV, Y BLOCK MUTE Py/G, Pb/B, Pr/R BLOCK MUTE OFF Py/G, Pb/B, Pr/R BLOCK MUTE ○ Cautions on use (1) Absolute maximum ratings This IC may be damaged if the absolute maximum ratings for the applied voltage, temperature range, or other parameters are exceeded. Therefore, avoid using a voltage or temperature that exceeds the absolute maximum ratings. If it is possible that absolute maximum ratings will be exceeded, use fuses or other physical safety measures and determine ways to avoid exceeding the IC's absolute maximum ratings. (2) GND voltage Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state. Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric transient. (3) Thermal design Ensure sufficient margins to the thermal design by taking in to account the allowable power dissipation during actual use modes. (4) Shorting between pins and mounting errors When mounting the IC chip on a board, be very careful to set the chip's orientation and position precisely. When the power is turned on, the IC may be damaged if it is not mounted correctly. The IC may also be damaged if a short occurs (due to a foreign object, etc.) between two pins, between a pin and the power supply, or between a pin and the GND. (5) Operation in strong magnetic fields Note with caution that operation faults may occur when this IC operates in a strong magnetic field. (6) Place the power supply bypass capacitor as close as possible to the Vcc pin (PIN1, PIN16). (7) When not using a sag correction circuit Connect the sag correction pin and output pin as closely as possible. There is a danger of high frequency oscillation. Also make the distance from the output pin (OUT pin, SAG pin) to the 75Ω resistance as short as possible. (8) When using a sag correction circuit Make the length of the output pin (OUT pin, SAG pin) and capacitor as short as possible. There is a danger of high frequency oscillation. Also make the distance from the output pin (OUT pin, SAG pin) to the 75Ω resistance as short as possible. If these cautions is not observed in board layout, connect a capacitor (0.01μF~0.1μF) as short as possibl 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, 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 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