LC7821N SANYO | Alldatasheet

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No:3042 LC7821N,7822N,7823N SANYO ens Analog Function Switch - Serial data-controlled function select switch suited for use in ampliliers, teteiverss. re Features ff . 4 ee - Analog switches of 8 channels X 2 (LC7823N : 7 channels X 2) are containedy, “2S c) sf Three pes are available according totheinternal connection. ¢ . a¢ - Control is exercised by serial data. The LC7821N,7822N,1823N ‘tay bejinterfaced with a microcomputer (5V supply) easily. Af Se OS ff - Even if two ICs of the same type are used, they may be connected to the comiion bus ling because the S (selector) pin is provided. ef? “Be > ee . Reset pin used to turn OFF all analog switches ff ry," fe + Wide dynamic range because of + 20V breakdown voltage’ a NS fe Absolute Maximum Ratings at 'Ta = 25°C rs 4p, Shel” ff unit Maximum Supply Voltage Vppmax Vpn 2 ¢ O8to4+20 V Vepmax Veg 8 yer“ #20t0+0.3 VV Maximum Input Vollage Vib DI,CL,CB,S, RES.“ , 20.3 to +20 Vv V\\2 L1 WES, iY Vex —9.3'to Vpp + 0.3 v LGOML to Li BM, fy ROOM to RCO of Analog Switch ON-State AVon Switch ON f 05 Vv Voltage Difference sé Re f¢ Allowable Power Dissipation Pdmax °° TaSwrO<o of 1u00 mW Operating 'l'emperature Topg ~f £ & oe —30lo +76 = °C Storage Temperature Tatg » ™ 4 Ps of —40to +126 = °C Pin Assignment aa RAS ug bg er ug Shee we ba ms v9 BF Pars fa at ns toon Ba coms 1 Gi) pare ¢ yeomt (Ry : SD A Rost” 1. (2 as tcom [5] Py rcomr’ Leh. Ba ne 2” “Gl bal ro 1s EF] Bass SE» Rs tom [6] F] ncome Ls PERG st [Eh Fy.Rs ts Fa RS Leomata] 7821" FR scone teowea [A 87724.“ coma ug (E] °7829N Ba ng ac Le et ee ub bi) a7 veel] [doo ee So [i Yoo vee (2 vo cel] fim ce a [2] Fes ce. (6 [a] Res Cr CO ee s 1 ag Ci jae, Sug] fa) vss a [id ¥ss of S&S # €ase Outline 3047A-D30SIC_-® 6 — ea if : Rad Tho avpidato’”vicuit dagrans did’ okaut constants rh hordin aro inolided "wa. an exarhplé and provide no qu: TuuToUDoG oe od i 2 aranteo {or designing, etiimsnt:to be mass-produced. ———— 71.2 The information hereine, bebaved to ba accurate end 0.25 rabable. Hoover, no rospaisibikly is assumed by 3H SANYO for its use; nor for any iahingemanis of pat- Ki tents of other rights of third parlies which may result 1 Irom its use. - reared 1) SANYO1 DIP30S Specifications and information herein are subject to change without notice. SANYO Electric Co.,Ltd. Semiconductor Overseas Marketing Div. Natstone Bldg. 18 6G. 2 chome, Yushima, Bunkyo-ku, TOKYO 113 JAPAN

LC7821N,7822N,7823N Allowable Operating Conditions at Ta= 25°C, Vgg=0V,|Vop|2 | Vel min typ max unit Maximum Supply Voltage Von Vpp~— Viec2@12V: Vpp 6.0 18.5 v Ver Vop—Vee® 12V: Veg 18.5 o ov Input “H"-Level Voltage Vint DLCL,CE,S 4.0 185 V Vind RES 0.7Vpp. Yop OV Input “L”-Level Voltage Vul DLCL,CE,S fRN 07 OV Vin2 RES ££O03Vpp OV (Analog Switch Inpat Vin L1 to L8,R1 to R8, Nee. “Nap V Voltage Range LCOM1 to LCOM4, ff £ A, RCOM1 to RCOM4 ff ‘ — aa “L"-Level Clock Pulse Width — tgy, CL a - J @ psee “H"-Level Clock Pulse Width — tgyy C, ff 59.6% 2 # psee Setup Time trotup CL,DI af Sy Os fe psec ti* CL,CE ae %, ~~ ff psec to* CL,CE ae ee psec tg* CLCE og es “0.5 fe psec Reset Minimum Pulse Width — twreg Vpp26V : RES,” SQ, JF 1.07 psec Hysteresis Width Vu CLCE,DL ce" 03, v *:CE,CL,DI waveforms of rh oe oe a ce Electrical Characteristics at ‘I'ax26°C,VgghQV oy min typ max unit Analog Switch ON-State Ront SY be AV a Ven= 12V: 150 Q Resistance ffs ae 0 18,442 to R8, LCOML to LCOMA, £8 SO NRCOME' 6 RCOM4 fe Rok, tetas yp. Ven=37¥: 70 Q Jf S. ”L160,£8, RI to R8, LCOM1 to LCOM4, ew. REOM1 lo RCOM4 ‘Total Harmonic Disioftion “2eHDi Min = 1Vrms,f= Utz, 0.0015 0.01 % SE S% Mow Ver=37V 211 to L8, R1 to R8, ff SS fe LCOMI to LCOM4,RCOM1 to RCOM4 of aw &@ Vov-Ver=37V:11 to L8, Rt to R8 ff “ea ff LCOM1 to LCOM4,RCOML to RCOM4 Feedthrough 8 "Bey Vin=0dBV f= LOkEz, 65 dB ff ee OAF Vop—ge=37V : Li to L8, Ri to R8 é¢ Be. we Oe LCOMt to LCOM4,RCOML to RCOM4 Crosstalk. of CL Vin = 0dBV, f= 10kHz, id dB fe ~y fF Vop~Viw=37V : Li to L8, R1 to R8, Me ff LCOMI to LCOM4,RCOM1 to RCOM4 Inpub“1™Lev Curfent lin Vi = 18.5V ; DI,CL,CE,S,RES 10 pA Input “L™Level Current In, Vi=0V: DI,CL,CE,S,RES ~10 pA (felch OB Stat lore Vis Veg to Veg +37V:L1toL8, —10 10 pA eakage Current R1 to R8, LCOM1 te LCOM4, RCOML to RCOM4 Current Dissipation Ipp Vpp 1.00 mA No,.3042-2/6

1C7821N,7822N,7823N Equivalent Circuit Block Diagram 4¢7821N u a Pd... Loe mm , toon O— —- 0 AG & oé wo pg} | | pd! leon, 1s - an ad Lcom2 © ee or oe Lcoms 0 | si ty 0 Ron F ry ONE hats vee On [inertia Jn a |/ Vee oF hy on Oot Feo >! (Fatteglter Fe] K-—-oct 1 O- RS. ~y rd at a. se | wey =Ba-— ff — R2 Je a Ra Ae + RD pi ghcom | en OR? i ———° RCOH1 fe ‘One __ ie -—O RG fe Os a: | Bee RS oe — } Pf; -one en © . Os Ae ee eee | fA Sy “B eQ4— ORB iy, oe A as $$ -——© ACOM3 aaa Ss |sfsir" fe o— > 3 Gyo s ol Gf —oce bo ~~ No.3042-3/6

LC7821N,7822N,7823N Equivatent Circuit Block Diagram 1.¢7823N to ba > A \\° ™ Ro | BA _ t— A 7 OR? Loos o yt ROMS Bop [shitting 13 ato so—— # a “85 Oce Pin Description ‘ (i co fe [| _Piawene [vo | erga] Z Pusetion Lil to L8,R1 to R8, cf j . See Block Diagréam. InpuV/output pins for analog LCOMI toLcom4, | | set 6 switehes. CL,DI,CE et & Re “Sp ff ‘o Srial data input pins fy al (Schmitt buffer) Af) gee ~ in, o> CL---Clock input pin ff | See fe DI--Data input pin ae og CE---Chip enable pin Sof fy 1p fe Select pin in the two 1Cs-used mode of e* oul oe When the S pin is brought to “L” or & ‘f S| 3 Ae. “H” level, the address will become if go Mas fad as shown below. fé & Sy eS tovean | to fa to fa | f Pu Pati fi fa) Reset pin When power is applied, the state of the analog switches will be o—d>— indeterminate. When this pin is brought to “L” level, all analog switches will be turned OFF. No.3042-4/6

LC7821N,7822N,7823N Operation Description 1. Data input method The LC7821N,7822N,7823N are controlled by inputting serial data to the CL, DI, CE. pins. Data consists of 12bits in all (address : 4 bits, data : 8 bits). 1st bit last Bi, i Ma ‘Address Switch select, PF SONS Each switch No, corresponds to analog switches Li toL8,R1toR8. ff ye SF Set the bit of a switch to be turned ON to 1. a¢ a . re ff a ff ‘'Yhe address is used for chip select when connected to the commén'hus line: Woe fe When the § pin is brought to “L” or “H” level, the transmit data-will becomeas shown'hélow, i a ees SPin Adirest gery, w Lao | ane fay S Af L 1” “ ag Lerez3n tlie 4/ Nole: For the LC7823N, the bit of switch Becomes’ “don’t care” (6 oF 1). The reason for this is that the LC7823N gontaing 7 channels X 2of analog switches. 2. 'Timing of DI,CL,CE pulse signals ~~ 4 £ oe ye “Sa SS 9” 0.5pn0c, or more ton, Osi. or nore fe £2 10.5ys00, eC 0.6 p56 or make Sbysec. oF morS Fé oY oF Kate) es OS 0 og sae OR fg CE pulse falt Analog giitch ofA ve of ES = * £ Old data New data 2° Data is fetched ints Yio inside on the positive transition of the CL, pulse 2 gaeptititklatehied on the negative transition of the CE pulse. When’ powel"ig.apptied, thé,Slate of the analog switches will be indeterminate. Al! analog switches didiy:be turned OFF by connecting C, R to this pin externally. SO Voo vou sv ad RES 0.7¥p0 We “—* Data issent from a microcomputer ©3¥00 after this point. 4.07821N,7822N 76234) a _— lor more Reset Whenthe RES pinis held at “L” level for 1psec, or more, all analog switches willbe turned OFF. No.3042-5/6

LC7821N,7822N,7823N 4, When the C2B is shared by plural ICs: The state of the LC7821N,7822N,7823N remains unchanged until they receive the address data assgined te them. ge. ss - Sample Application Circuit fans ff aa LC7821N No.1 ff wows. ee a be oy fr io aR fé LC7BAsHMNOZ hy Rh és | | —-{veR2 OF gh Le tb ee Dd, i om Ae “Sel Bg | NO CONNEGT(GNO) in! Ne, fe - a Note)” The other channel also has the same connection. a a aa Ss Fa ; No.3042-6/6