View BH7649KS2_3346961.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. high-performance vide o signal switchers video ? audio signal switchers for car navigation car dvd player BH7649KS2 description BH7649KS2 is built-in video switch, audio swit ch and isolation amplifier in a single chip. features 1) video inputs selector: 7-inputs composite, video outputs: 2-outputs 75 ? video driver, 2-outputs amp 2) built in video gain switch (-6db / -3db / 0db / 3db) 3) built in video lpf switch (6.75mhz / through) 4) built in sag compensation circuit 5) enables two load drivers 6) video driver: able to be used without load 7) video driver : able to be used without output coupling capacitor(one load) 8) audio inputs selector: 5-inputs(lch, rch), audio outputs : 2-outputs(lch, rch) 9) built in audio gain switch (0db / -6db) 10) built in audio lpf switch (24khz / through) 11) built in mute function 12) audio/video all inputs: built in isolator function 13) selectable isolator function fo r different audio/video input channels 14) serial control with i 2 c-bus (i 2 c-bus is compatible with fast mode of version2.0) 15) optional slave address modifications (90h / 92h) applications car navigation, car dvd absolute maximum ratings (ta=+25 ) parameter symbol ratings unit supply voltage vvcc vvccmax 10 v supply voltage avcc avccmax 10 v power dissipation pd 1900 *1 mw input voltage range i 2 c-bus input (scl, sda) v i2cin -0.2 7.0 v input voltage range vi deo selector, logic (vin1, vret1, vin2, vret2, vin3, vret3, vin4, vret4, vin5, vret5, vin6, vret6, vin7, vret7, adr) v in1 -0.2 5.1 v input voltage range video driver (vdin1, vdin2) v din1 -0.2 vvcc+0.2 v input voltage range audio seletor (lin1, aret1, rin1, lin2, aret 2, rin2, lin3, aret3, rin3, lin4, aret4, rin4, lin5, aret5, rin5) v ain1 -0.2 avcc+0.2 v storage temperature range tstg -55 +125 *1 when mounting on a 70mm 70mm 1.6mm 4-layer glass epoxy board reduced by 19mw/ at ta = +25 or higher operating conditions parameter symbol ratings unit supply voltage vvcc vvcc +7.5 +9.5 v supply voltage avcc avcc +7.5 +9.5 v operating temperatur e range topr -40 +85 * this product is not designed for pr otection against radioactive rays. no.11066eat05
technical note 2/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 electric characteristic (unless otherwise specified, ta=+25 , vvcc=8.5v, avcc=8.5v) parameter symbol limits unit conditions min. typ. max. chip circuit current1 icc1 - 34 48 ma no signal(video) circuit current2 icc2 - 23 32 ma no signal(audio) video voltage gain -6db gvm6 v -6.4 -6.0 -5.6 db vin=1.0vpp, f=100khz -3db gvm3 v -3.4 -3.0 -2.6 db vin=1.0vpp, f=100khz 0db gv0 v -0.4 0.0 0.4 db vin=1.0vpp, f=100khz 3db gv3 v 2.6 3.0 3.4 db vin=1.0vpp, f=100khz 6db gv6 v 5.6 6.0 6.4 db vin=1.0vpp, f=100khz frequency characteristics1 [f=6.75mhz lpf mode] gf11 v -1.5 0.0 1.0 db vin=1.0vpp, f=6.75mhz/100khz gf12 v - -30 -20 db vin=1.0vpp, f=27mhz/100khz frequency characteristics 2_1 [through mode_-6db] gf2 v -0.6 0.9 1.9 db vin=1.0vpp, f=10mhz/100khz gain=-6db frequency characteristics 2_2 [through mode_-3db] gf2 v -0.7 0.8 1.8 db vin=1.0vpp, f=10mhz/100khz gain=-3db frequency characteristics 2_3 [through mode_0db] gf2 v -0.7 0.8 1.8 db vin=1.0vpp, f=10mhz/100khz gain=0db frequency characteristics 2_4 [through mode_3db] gf2 v -1.0 0.5 1.5 db vin=1.0vpp, f=10mhz/100khz gain=3db frequency characteristics 3 [vdout1, vdout2] gf3 v -3.0 -0.5 1.0 db vin=1.0vpp, f=15mhz maximum output level vom v 2.6 - - vp-p f=10khz, thd=1.0% cross talk ct v - -60 -50 db vin=1.0vpp, f=4.43mhz mute attenuation mt v - -60 -50 db vin=1.0vpp, f=4.43mhz common mode rejection ratio cmrr - -60 -40 db vin=1vpp, f=20khz audio voltage gain 0db gv0 a -0.4 0.0 0.4 db vin=1vrms, f=1khz -6db gv6 a -6.4 -6.0 -5.6 db vin=1vrms, f=1khz frequency characteristics 1 [f=24khz lpf mode] gf11 a -2.0 -0.5 1.0 db vin=1vrms, f=24khz/1khz gf12 a - -26 -15 db vin=1vrms, f=96khz/1khz frequency characteristics 2 [through mode] gf2 a -1.0 0.0 1.0 db vin=1vrms, f=50khz/1khz total harmonic distortion thd+n - 0.002 0.1 % vin=1vrms, f=1khz 1 maximum output level vom a 2.0 2.4 - vrms f=1khz, thd<0.3% 1 cross talk ct a - -100 -85 db vin=2vrms, f=1khz 1 mute attenuation mt a - -100 -85 db vin=2vrms, f=1khz 1 residual noise1 [through mode] n a - 10 - uvrms (through mode select) 2 residual noise2 [f=24khz lpf mode] n a_lpf - 20 - uvrms lout1, rout1(lpf select) 2 common mode rejection ratio cmrr - -70 -40 db vin=1vrms, f=1khz psrr psrr a - -50 - db 3 i 2 c [scl,sda] vil 4 vin1l 0 - 1.0 v low level input voltage vih 4 vin1h 2.0 - 5.5 v high level input voltage input bias current iini2c -10 0 10 ua sda output voltage vol 0 - 0.4 v at 3.0ma sink current [adr] vil vin2l 0 - 1.0 v low level input voltage vih vin2h 2.0 - 5.1 v high level input voltage 5 input impedance zin adr 70 100 130 k pull-down resister 1 400hzhpf + 30khzlpf on 2 ihf-a filter on 3 vin=0.3vpp, f=100hz at vcc, 30khzlpf on 4 vil:-0.5[v] 0.3v dd [v], vih:0.7 v dd [v] v dd +0.5 or 5.5[v] (v dd :i2c-bus_supply voltage) <BH7649KS2> be sure to use as vil:0.0[v] 1.0[v], vih:2.0[v] 5.5[v] 5 we recommend that it is connect adr pin to 38pin(vreg pin) when adr pin is used as ?h?.
technical note 3/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 block diagram (audio block) fig.1 block diagram lin1 2 lin2 6 lin3 10 li n4 14 lin5 18 aret1 3 aret2 7 aret3 11 ab ias 5 rin1 4 rin2 8 rin3 12 rin4 16 rin5 20 audio_sel1 audio_sel2 0/-6db audio_gain1 22 lout1 aret4 15 aret5 19 bias mute mute mute mute lpf_audio 0/-6db lpf_audio 23 r out1 0/-6db audio_gain2 24 lout2 0/-6db 25 r out2 13 avcc 9 agnd bias bias bias bias bias bias bias bias bias bias bias bias bias bias bias
technical note 4/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 block diagram (video block) fig.2 block diagram vin1 vin2 vin3 vin4 vin5 mute vbias clamp/bias1 bias2 43 45 41 47 35 vout1 21 video_sel1 video_gain1 vin6 vin7 49 51 mute -6/-3/ 0/3db 34 vdin1 75 6db 27 vdout1 28 vdsag1 mute clamp/bias2 33 vout2 video_sel2 video_gain2 mute -6/-3/ 0/3db 32 vdin2 75 6db 29 vdout2 30 vdsag2 vret1 40 44 46 42 48 50 52 vreg vreg 38 adr logic 17 sda 36 scl 37 31 vgnd1 26 vvcc lpf_video1 lpf_video2 39 vret2 vret3 vret4 vret5 vret6 vret7 vgnd2 1 bias bias bias bias bias bias bias bias bias bias bias bias bias bias
technical note 5/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 package outlines fig.3 package outlines pin assignment table no. i/o pin name no. i/o pin name no. i/o pin name no. i/o pin name 1 - vgnd2 14 i lin4 27 o vdout1 40 i vret1 2 i lin1 15 i aret4 28 o vdsag1 41 i vin2 3 i aret1 16 i rin4 29 o vdout2 42 i vret2 4 i rin1 17 i adr 30 o vdsag2 43 i vin3 5 - abias 18 i lin5 31 - vgnd1 44 i vret3 6 i lin2 19 i aret5 32 i vdin2 45 i vin4 7 i aret2 20 i rin5 33 o vout2 46 i vret4 8 i rin2 21 - vbias 34 i vdin1 47 i vin5 9 - agnd 22 o lout1 35 o vout1 48 i vret5 10 i lin3 23 o rout1 36 i/o sda 49 i vin6 11 i aret3 24 o lout2 37 i scl 50 i vret6 12 i rin3 25 o rout2 38 o vreg 51 i vin7 13 - avcc 26 - vvcc 39 i vin1 52 i vret7 BH7649KS2 lot no. sqfp-t52(unit mm )
technical note 6/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 i 2 c bus control specification i 2 c-bus format (write mode) s slave address a data1 a data2 a data3 a data4 a data5 a data6 a p s : start condition a : acknowledge p : stop condition b7 b6 b5 b4 b3 b2 b1 b0 slave address 1 0 0 1 0 0 adr 0 data1 video_sel1 video_sel2 lpf_video1 lpf_video2 data2 video_gain1 video_gain2 clamp/bias1 clamp/bias2 video_power -off1 video_power -off2 data3 audio_sel1 audio_sel2 0 lpf_audio data4 0 0 audio_gain1 audio_gain2 0 0 0 0 data5 isolation_v1 isolation_v2 isolation_v3 isolation_v4 isolati on_v5 isolation_v6 isolation_v7 0 data6 isolation_a1 isolation_a2 isol ation_a3 isolation_a4 isolation_a5 0 0 0 when power is turned on, all parts start from low condition. [prohibited matter] the terminal inputs of adr do not change from start to stop condition. operation error might happen.
technical note 7/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 selecting input swit ch / setti ng mode data name status data name status data name status adr sets the slave address by adr pin clamp/bias1 input mode selectors (clamp/bias1 : vdin1) isolation_v1 isolator function selectors (vin1) 0 : 90h adr pin = ? l ? 0 : clamp input mode (vdout1:direct drive) 0 : on 1 : 92h adr pin =? h ? 1 : bias input mode (vdout1:output coupling ?c?) 1 : off video_sel1 signal input selectors (video_sel1) clamp/bias2 input mode selectors (clamp/bias2 : vdin2) isolation_v2 isolator function selectors (vin2) 000 : vin1 0 : clamp input mode (vdout2 direct drive) 0 : on 001 : vin2 1 : bias input mode (vdout2:output coupling ?c?) 1 : off 010 : vin3 video_power-off1 power-off function selectors (vdin1 - vdout1) isolation_v3 isolator function selectors (vin3) 011 : vin4 0 : on 0 : on 100 : vin5 1 : off 1 : off 101 : vin6 video_power-off2 power-off function selectors (vdin2 - vdout2) isolation_v4 isolator function selectors (vin4) 110 : vin7 0 : on 0 : on 111 : mute 1 : off 1 : off video_sel2 signal input selectors (video_sel2) audio_ sel1 signal input selectors (audio_ sel1) isolation_v5 isolator function selectors (vin5) 000 : vin1 000 : lin1, rin1 0 : on 001 : vin2 001 : lin2, rin2 1 : off 010 : vin3 010 : lin3, rin3 isolation_v 6 isolator function selectors (vin6) 011 : vin4 011 : lin4, rin4 0 : on 100 : vin5 100 : lin5, rin5 1 : off 101 : vin6 101 : mute isolation_v7 isolator function selectors (vin7) 110 : vin7 110 : mute 0 : on 111 : mute 111 : mute 1 : off lpf_video1 lpf function selectors of vout1 audio_ sel2 signal input selectors (audio_ sel2) isolation_a1 isolator function selectors (lin1, rin1) 0 : 6.75mhz 000 : lin1, rin1 0 : on 1 : through 001 : lin2, rin2 1 : off lpf_video2 lpf function selectors of vout2 010 : lin3, rin3 isolation_a2 isolator function selectors (lin2, rin2) 0 : 6.75mhz 011 : lin4, rin4 0 : on 1 : through 100 : lin5, rin5 1 : off video_gain1 output gain selectors (video_gain1) 101 : mute isolation_a3 isolator function selectors (lin3, rin3) 00 : -6db 110 : mute 0 : on 01 : -3db 111 : mute 1 : off 10 : 0db lpf_audio lpf function selectors of lout1 and rout1 isolation_a4 isolator function selectors (lin4, rin4) 11 : 3db 0 : through 0 : on video_gain2 output gain selectors (video_gain2) 1 : 24khz 1 : off 00 : -6db audio_ gain1 output gain selectors (audio_gain1) isolation_a5 isolator function selectors (lin5, rin5) 01 : -3db 0 : 0db 0 : on 10 : 0db 1 : -6db 1 : off 11 : 3db audio_ gain2 output gain selectors (audio_gain2) 0 : 0db 1 : -6db
technical note 8/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 application circuit example fig.4 40 41 42 43 44 45 46 47 48 49 50 1 2 3 4 5 6 7 8 9 10 11 16 17 18 19 20 21 22 23 24 25 26 29 30 31 32 33 34 35 36 37 38 39 27 28 51 52 12 13 14 15 vin2 vre t1 vre t2 vin3 vret3 vin4 vret4 vin5 vret5 vin6 vin7 vret6 vret7 vvcc rout2 lout2 rout1 lo ut1 vb ia s rin5 are t5 adr rin4 are t4 lin4 vgnd2 lin1 are t1 rin1 abias lin2 aret2 rin2 agnd lin3 aret3 rin3 avcc vin1 vre g scl sda vout1 vdin1 vout2 vd1 n2 vgnd1 vdsag2 vdout2 vdsag1 vdo ut1 mpu 1 22 1 1 1 1 1 1 1 1 1 1 1 1 22 0.1 1 1 1 1 1 1 1 1 1 22 1 1 1 1 1 1 10 10 10 10 10 0 75 75 22 100 75 75 22 28 27 40 39 1 2 3 4 1 + + 1 open o pen 75 75 *3. when video isolator is off (not only 39-40 pin, but also 41-52 pin) *2. when adjusting gain by external resistors. (not only 32-33 pin, but also 34-35pin) *1. 75 ohm driver connection at clamp mode: connect directly at bias mode: connect via coupling capacitor ( not o nly 27 - 28 p in, b ut a lso 29 - 30 p in) 33 32 *1 *2 *3 *4 *4 *3 *1 *2 10k 10 k 10k 10k lin5 *2 1 22 22 0. 1 r1:2.2k ? r2:2.2k ? c1: 0.1 f (at clamp) 1.0 f (at bias ) c2:15pf [a bou t the va lue o f the se comp one nts] a dju stin g ga in b y r2( 0 to 2.2k ) a dju st in g c2 re fe r to th e v alu e of r 2. 10k 10k c1:0.1 f(at clamp mode) 1.0 f( at b ias mo de ) c1 c 1 *4. when audio isolator is off (not only 6-8 pin, but also 10-12, 14-16, 18-20 pin)
technical note 9/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 r_2b 1.2k r_2a 1.2k cn_2 r_4b 1.2k r_4a 1.2k cn_4 r_10b 1.2k r_10a 1.2k cn_10 r_12b 1.2k r_12a 1.2k cn_12 r_6b 1.2k r_6a 1.2k cn_6 r_8b 1.2k r_8a 1.2k cn_8 c_13a c_13b 2.2 0.1 cn50_a vret6 cn52_a vgnd cn_ 15a 1.2k 1.2k r_15b r_15a cn15_b vreg vgnd vgnd vgnd r_50a 75 vgnd vgnd vgnd cn46_a vret4 cn48_a vgnd vgnd vgnd r_46a 75 vgnd vgnd vgnd cn42_a vret2 cn44_a vgnd vgnd vgnd r_42a 75 vgnd vgnd vgnd cn40_a vgnd vgnd vgnd r_52a r_48a 75 75 r_44a 75 r_40a 75 r52 0 r51 0 r50 0 r49 0 r48 0 r47 0 r46 0 r45 0 r44 0 r43 0 r42 0 r41 0 r40 0 r39 100 cn_ 15a 1.2k 1.2k r_19b r_19a cn19_b sw_adr h l 10k r22 lout1 10k r23 rout1 10k r24 lout2 10k r25 rout2 vvcc cn_32a cn_33b cn_35b cn_34a avcc vvcc javcc jvvcc gnd rsda rscl 1k 1k 14 15 16 17 18 19 20 21 22 23 24 25 26 40 41 42 43 44 45 46 47 48 49 50 51 52 lin4 aret4 rin4 adr lin5 aret5 rin5 vbias lout1 rout1 lout2 rout2 vvcc vret1 vin2 vret2 vin3 vret3 vin4 vret4 vin5 vret5 vin6 vret6 vin7 vret7 r14 0 r15 0 r16 0 r18 0 r19 0 r20 0 0 0 0 0 vgnd vgnd vgnd vgnd vgnd vgnd agnd agnd agnd agnd agnd agnd cr_22 cr_23 cr_24 cr_25 1 2 3 4 5 6 7 8 bias iso bias iso bias iso bias iso 1 2 3 4 5 6 7 8 bias iso bias iso bias iso bias iso 2 bias iso 2 10k amp. lpf 10k amp. lpf 10k amp. 10k amp. 75 driver bias clamp 75 driver bias clamp 10k amp. lpf/ through 10k amp. lpf/ through evaluation board circuit diagram fig.5
technical note 10/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 evaluation board pcb layer fig.6
technical note 11/13 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 notes for use (1) absolute maximum ratings if the absolute maximum ratings for applied voltage and/or operation temperature are exceeded, lsi damage may result. therefore, do not apply voltage or use in a temperature that exceeds t hese absolute maximum ratings. if it is possible that absolute maximum ratings will be exceeded, use a physical safety device such as a fuse and make sure that no conditions that might exceed the absolute maximum ratings will be applied to the lsi ic. (2) gnd potential regardless of the operation mode, the volt age of the gnd pin should be at leas t the minimum voltage. actually check whether or not the voltage at each pin, including transient phenomena, is less than the gnd pin voltage. (3) thermal design the thermal design should be done using an ample margin t hat takes into consideration the allowable dissipation under actual use conditions. perform thermal design in which there are adequate margins by taking into account the allowable power dissipation in actual states of use. (4) shorts between pins and mounting errors when mounting lsi ics onto the circuit board, make sure each lsi?s orientation and position is correct. the ics may become damaged if they are not mounted co rrectly when the power is turned on. similarly, damage may also result if a short occurs, such as when a foreign object is positioned between pins in an ic, or between a pin and power supply or gnd connection. (5) operation in strong electromagnetic field when used within a strong electromagnetic field, eval uate carefully to avoid the risk of operation faults. (6) when not using a sag compensation circuit connect the sag compensation pin and output pin as cl osely as possible. there is a danger of high frequency oscillation. also make the distance from t he output pin (out pin, sag pin) to the 75 resistance as short as possible. (7) when using a sag compensation circuit make the length of the output pi n (out pin, sag pin) and capacitor as shor t as possible. there is a danger of high frequency oscillation. also make the distance from the output pin (out pi n, sag pin) to the 75 resistance as short as possible. if these cautions is not observ ed in board layout, connect a capacitor (0.01f 0.1f) as short as possible (8) vgnd1(31pin), vgnd2(1pin) and agnd(9pin) connection when to float any one of gnd pins(vgnd1, vgnd2 and ag nd) during operation, the internal esd protection diode between vgnd1, vgnd2 and agnd may be damaged by large current surge. if the abnormal design like floating any one of gnd pins is required, it is adv isable to connect external diodes betw een gnd pins. the connection detail of external diodes is illustrated in fig.7. :1sr154-400(rohm etc. BH7649KS2 agnd vgnd1 9pin 31pin vgnd2 1pin fig.7 external diodes
technical note 12/12 www.rohm.com 2011.04 - rev. a ? 2011 rohm co., ltd. all rights reserved. BH7649KS2 ordering part number b d 7 6 4 9 k s 2 part no. part no. package ks2 : sqfp-t52 packaging and forming specification none: tray (unit : mm) sqfp-t52 39 27 26 14 40 52 13 1 0.15 1.4 0.1 0.3 0.1 0.1 0.1 0.5 0.65 12.0 0.3 0.125 0.1 10.0 0.2 12.0 0.3 10.0 0.2 ? order quantity needs to be multiple of the minimum quantity. tray (with dry pack) container quantity direction of feed 1000pcs direction of product is fixed in a tray 1pin
r1120 a www.rohm.com ? 2011 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied 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 specications, 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 specied 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 specied herein is intended only to show the typical functions of and examples of application circuits for the produc ts. 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 specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied 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, re or any other damage caused in the event of the failure of any product, such as derating, redundancy, re 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 specied 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.

▲Up To Search▲

Price & Availability of BH7649KS2

	To Download BH7649KS2 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .