View LC7232N-8819_7375703.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ordering number : enn * 4643 71599rm (ot)/73093jn no. 4643-1/23 overview the LC7232N-8819 is a single chip radio receiver controller that is optimal for use in home stereos. the LC7232N-8819 includes an lcd controller and the pll circuits required for lw, mw, sw, and fm reception in all major areas including china, the united states, europe, and the middle east. features handles reception of frequencies used throughout the world, including china, the united states, europe, the middle east, japan, and south africa. supports easy interfacing with the 33d1 and 11t1 cd modules. (sanyo products) supports remote controller access. provides electronic vr and source select control functions. preset memories fm: 16 stations mw: 8 stations max = 40 stations sw1: 8 stations sw2: 8 stations tuning: auto or manual up/down high speed search; fm: 60 ms/step, am: 70 ms/step clock function on/off timer and sleep functions lcd display: wide viewing angle, high contrast, wide operating temperature range package dimensions unit: mm 3044-qfp80a 0.15 3.0 14.0 20.0 0.8 1 24 25 40 41 64 65 80 22.6 1.7 2.45max 1.0 2.15 1.7 16.6 1.7 0.35 0.8 26.0 3.0 20.0 0.8 0.8 1.0 0.35 preliminary [LC7232N-8819] LC7232N-8819 sanyo electric co.,ltd. semiconductor company tokyo office tokyo bldg., 1-10, 1 chome, ueno, taito-ku, tokyo, 110-8534 japan single-chip pll and controller cmos ic any and all sanyo products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft? control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. consult with your sanyo representative nearest you before using any sanyo products described or contained herein in such applications. sanyo assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all sanyo products described or contained herein. sanyo: qfp80a (qip80a)
no. 4643-2/23 LC7232N-8819 reception frequency range comparison center frequency band (fm, sw: mhz, am: khz) step size (khz) frequency (khz) (fm: mhz, am: khz) b2 b1 b0 fm 87.0 to 108.0 100/50 25 10.7 mw a 531 to 1602 9 9 450/468 china b 522 to 1611 9 9 450/468 0 0 0 sw1 2.28 to 6.23 5 5 450 sw2 7.1 to 21.85 5 5 450 fm 87.5 to 107.9 200 50 10.7 usa (1) mw a 531 to 1602 9 9 450/468 0 0 1 b 530 to 1710 10 10 450 fm 87.5 to 108.0 100 50 10.7 usa (2) mw a 531 to 1602 9 9 450/468 0 1 0 b 530 to 1710 10 10 450 fm 87.5 to 108.0 100/50 25 10.7 europe mw a 531 to 1602 9 9 450/468 100 b 522 to 1611 9 9 450/468 lw 146 to 281 1 1 450/468 fm 87.5 to 108.0 100/50 25 10.7 mw a 531 to 1602 9 9 450/468 middle east b 522 to 1611 9 9 450/468 0 1 1 sw1 2.28 to 6.23 5 5 450 sw2 7.1 to 21.85 5 5 450 fm 66.0 to 72.0 100/50 25 10.7 mw a 531 to 1602 9 9 450/468 eastern europe b 522 to 1611 9 9 450/468 101 lw 146 to 281 1 1 450/468 sw swa 5.95 to 15.6 5 5 450 swb 3.8 to 12.5 5 5 450 fm 76.0 to 108.0 100/50 25 ?0.7 mw a 531 to 1602 9 9 450/468 japan/south africa b 522 to 1611 9 9 450/468 110 lw 146 to 281 1 1 450/468 sw swa 5.95 to 15.6 5 5 450 swb 3.8 to 12.5 5 5 450 fm 87.5 to 108.0 100/50 25 10.7 mw a 531 to 1602 9 9 450/468 world b 522 to 1611 9 9 450/468 111 lw 146 to 281 1 1 450/468 sw swa 5.95 to 15.6 5 5 450 swb 3.8 to 12.5 5 5 450 reception frequencies
no. 4643-3/23 LC7232N-8819 specifications absolute maximum ratings at ta = 25?, v ss = 0 v allowable operating ranges at ta = ?0 to +85?, v dd = 3.5 to 5.5 v parameter symbol conditions ratings unit maximum power supply voltage v dd max ?.3 to +6.5 v input voltage v in (1) hold, int, res, sns, remo, sd, ?.3 to +13 v stereo, k5, k4 v in (2) input other than v in (1) ?.3 to v dd + 0.3 v output voltage v out (1) mo/st, fm/am, mw, lw/sw1 ?.3 to +15 v v out (2) output other than v out (1) ?.3 to v dd + 0.3 v i out (1) bass, t-on, mute, powout, 0 to 5 ma mo/st, fm/am, mw, lw/sw1 output current i out (2) vdn, ce, do, clk, sw2/a/b, vup 0 to 3 ma i out (3) t0, t1, t2, t3, t4, t5, t6, t7 0 to 1 ma allowable power dissipation pd max ta = ?0 to +85? 400 mw operating temperature topr ?0 to +85 ? storage temperature tstg ?5 to +125 ? ratings parameter symbol conditions min typ max unit v dd (1) cpu and pll operating 4.5 5.5 v power supply voltage v dd (2) cpu operating 3.5 5.5 v v dd (3) memory hold 1.3 5.5 v v ih (1) remo, stereo, k4, k5 0.7 v dd 8.0 v v ih (2) res, int, hold 0.8 v dd 8.0 v input high level voltage v ih (3) sns 2.5 8.0 v v ih (4) k0, k1, k2, k3 0.6 v dd v dd v v ih (5) func1, func0 0.7 v dd v dd v v il (1) remo, stereo, k4, k5 0 0.3 v dd v v il (2) res, int 0 0.2 v dd v input low level voltage v il (3) sns 0 1.3 v v il (4) k0, k1, k2, k3 0 0.2 v dd v v il (5) func1, func0 0 0.3 v dd v v il (6) hold 0 0.4 v dd v f in (1) xin 4.0 4.5 5.0 mhz f in (2) fm osc v in (2) v dd (1) 10 130 mhz input frequency f in (3) am osc (lw, mw) v in (3) v dd (1) 0.5 10 mhz f in (4) am osc (sw) v in (4) v dd (1) 2.0 40 mhz f in (5) ifin v in (5) v dd (1) 0.4 12 mhz v in (1) xin 0.50 1.5 vrms input amplitude v in (2) fm osc 0.10 1.5 vrms v in (3), (4) am osc 0.10 1.5 vrms v in (5) ifin 0.10 1.5 vrms
electrical characteristics within the allowable operating ranges no. 4643-4/23 LC7232N-8819 ratings parameter symbol conditions min typ max unit power down detection voltage v det 2.7 3.0 3.3 v i ih (1) int, hold, res, sd, sns, remo, stereo, 3.0 ? k4, k5: v i = 5.5 v i ih (2) xin: v i = v dd = 5.0 v 2.0 5.0 15 ? input high level voltage i ih (3) fmosc, amosc, ifin: 4.0 10 30 ? v i = v dd = 5.0 v i ih (4) k0, k1, k2, k3: v i = v dd = 5.0 v 50 a i ih (5) func1, func0: v i = v dd 3.0 ? i il (1) v i = v ss int, hold, res, sd, sns, remo, 3.0 ? stereo, k4, k5 input low level voltage i il (2) v i = v ss xin 2.0 5.0 15 ? i il (3) v i = v ss fmosc, amosc, ifin 4.0 10 30 ? i il (4) v i = v ss func1, func0 30 ? input floating voltage v if k0, k1, k2, k3 0.05 v dd v pull-down resistance r pd k0, k1, k2, k3, v dd = 5 v 75 100 200 k i offh (1) eo1, eo2: v o = v dd 0.01 10 na t0, t1, t2, t3, t4, t5, t6, t7, output off leakage current i offh (2) powout, mute, t-on, bass, clk, do, 3.0 ? ce, vdn, vup, sw2/a/b: v o = v dd i offh (3) mo/st, fm/am, mw, lw/sw1: v o = 13 v 5.0 ? i offl (1) eo1, eo2: v o = v ss 0.01 10 na output off leakage current t0, t1, t2, t3, t4, t5, t6, t7, i offl (2) powout, mute, t-on, bass, clk, do, 3.0 ? ce, vdn, vup, sw2/a/b: v o = v ss v oh (1) t0, t1, t2, t3, t4, t5, t6, t7: i o = 1 ma v dd ?2.0 v dd ?1.0 v dd ?0.5 v v oh (2) bass, clk, do, ce, vdn, vup, sw2/a/b: v dd ?1.0 v i o = 1 ma v oh (3) eo1, eo2: i o = 500 ? v dd ?1.0 v output high level voltage v oh (4) xout: i o = 200 ? v dd ?1.0 v v oh (5) s1 to s28: i o = ?.1 ma v dd ?1.0 v v oh (6) com1, com2: i o = 25 ? v dd ?0.75 v dd ?0.5 v dd ?0.3 v v oh (7) powout, mute, t-on, bass: i o = 5 ma v dd ?1.0 v ol (1) t0, t1, t2, t3, t4, t5, t6, t7: i o = 50 ? 0.5 1.0 2.0 v v ol (2) bass, clk, do, ce, vdn, vup, sw2/a/b: 1.0 v i o = 1 ma v ol (3) eo1, eo2: i o = 500 ? 1.0 v output low level voltage v ol (4) xout: i o = 200 ? 1.0 v v ol (5) s1 to s28: i o = 0.1 ma 1.0 v v ol (6) powout, mute, t-on, bass: i o = 5 ma 1.0 v v ol (7) com1, com2: i o = 25 ? 0.3 0.5 0.75 v v ol (8) mo/st, fm/am, mw, lw/sw1: i o = 5 ma 0.75 2.0 v (150 ) (400 ) output middle level voltage v m com1, com2, v dd = 5 v, i o = 20 ? 2.0 2.5 3.0 v i dd (1) v dd (1) , f in (2) = 130 mhz 15 20 ma i dd (2) v dd (2) pll stop 1.5 ma (hold figure 1) power supply current i dd (3) v dd = 5.5 v. osc stop. ta = 25 ? 5a (back up figure 2) i dd (4) v dd = 2.2 v. osc stop. ta = 25 ? 1a (back up figure 2)
no. 4643-5/23 LC7232N-8819 unit (capacitance: f) figure 1 i dd (2) in hold mode figure 2 i dd (3) in back-up mode
key matrix and diode matrix (dimrx) no. 4643-6/23 LC7232N-8819 k0 k1 k2 k3 k4 k5 t0 ch1/timer on ch2/timer off ch3 ch4 b0 s b1 s t1 ch5 ch6 ch7 ch8 b2 s fm s t2 t-up t-down band me mw s lw s t3 mo/st mute bass func. sw1 s sw2 s t4 power v-up v-dn phono ifshift s selfun s t5 tuner cd tape aux c0 s c1 s t6 fm mw lw (sw1) sw2 (swa), (swb) c2 s c3 s t7 sleep display timer clock s antiphon s diode matrix descriptions diode matrix name on/off function invalid regions b0, b1, b2 0 see the descriptions of the reception frequencies. 1 fm 0 fm step = 100 khz invalid in the usa (1) and usa (2) regions. 1 fm step = 50 khz mw 0 mw ??frequency range valid in all regions. 1 mw ??frequency range lw 0 lw disabled invalid in china, the usa (1), usa (2) and 1 lw enabled the middle east. sw1 0 sw1 (swa) disabled invalid in the usa (1), usa (2) and 1 sw1 (swa) enabled europe. sw2 0 sw2 (swb) disabled selects sw1 or sw2 when lw = 0, and 1 sw2 (swb) enabled selects swa or swb when lw = 1. if shift 0 450 khz selected valid in all regions. 1 468 khz selected selfun 0 function switching is performed by the func0 and func1 inputs. 1 function switching is performed by the tact switch. c0 to c3 0 these should be set to match the LC7232N-8819 and/or 1 lc7461m-8103 custom code. clock 0 clock and timer disabled 1 clock and timer enabled anti-phon 0 phono function enabled 1 phono function disabled
pin functions no. 4643-7/23 LC7232N-8819 pin symbol i/o allocation active function initial value handling when unused 1 xin i xin connection for the 4.5 mhz crystal must be used. 2 test2 i test2 connect to gnd must be used. 3 pg3 i remo l remote control input pin; remo and int are connected together. connect directly to v dd . 4 pg2 i stereo l in fm mode with stereo selected by the mo/st key, connect directly to v dd . when this pin goes low the st indicator will be lit. 5 pg1 i k5 diode matrix inputs must be used. 6 pg0 i k4 must be used. 7 ph3 o mo/st h mono = low, stereo = high l open 8 ph2 o fm/am tuner band switching output h open 9 ph1 o mw see the band switching output table for details. h open 10 ph0 o lw/sw1 h open 11 pf3 o sw2/a/b l open 12 pf2 i func1 switches the function according to the input state. l connect to gnd. 13 pf1 i func0 (connect these pins to gnd when selfun = 1.) l connect to gnd. 14 pf0 o vup h for use with the motorized volume control. l open outputs a high level while the v-up key is pressed. 15 pe3 o vdn h for use with the motorized volume control. l open outputs a high level while the v-dn key is pressed. 16 pe2 o ce h for control of the electronic volume ic and the source selector ic. l open 17 pe1 o do h l open 18 pe0 o clk h l open 19 pd3 o bass h for use with super bass control. the bass indicator will be on l open when this signal is high, and off when low. 20 pd2 o t-on h after a power on due to the timer, waits one second and then l open outputs a high level for 500 ms. (for use by on timer auto-play.) 21 pd1 o mute h audio mute (audio signal cutoff) l open used for both mute output due to the mute key as well as if counter output. 22 pd0 o powout h power control l open power on = high, power off = low 23 pc3 o t7 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 24 pc2 o t6 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 25 pc1 o t5 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 26 pc0 o t4 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 27 pb3 o t3 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 28 pb2 o t2 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 29 pb1 o t1 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) 30 pb0 o t0 h scans only when a key is pressed. holds a high level when the h open scan is stopped. (the chattering exclusion time is 40 ms.) continued on next page.
no. 4643-8/23 LC7232N-8819 pin symbol i/o allocation active function initial value handling when unused 31 v dd ? dd connect to +5 v. must be used. 32 pa3 i k3 key scan input connect to gnd. 33 pa2 i k2 key scan input connect to gnd. 34 pa1 i k1 key scan input connect to gnd. 35 pa0 i k0 key scan input connect to gnd. 36 to 63 s28 to s1 o s28 to s1 lcd segment driver open 64 com2 o com2 lcd com2 driver must be used. 65 com1 o com1 lcd com1 driver must be used. 66 int i int remote control input pin; remo and int are connected connect directly to v dd . together. 67 hold i hold l normal mode when hold is high connect directly to v dd . back up mode when hold is low (regardless of whether the clock is enabled) 68 res i res l connect to +5 v. must be used. 69 adi i sd l reports when a station is received during auto-tuning. connect directly to v ss . 70 hctr i ifin ac am/fm if input connect directly to v ss . 71 lctr i connect to gnd. connect directly to v ss . 72 sns i sns l power failure determination input pin connect directly to v ss . 73 v dd ? dd connect to +5 v. must be used. 74 fmin i fmosc ac fm local oscillator input must be used. 75 amin i amosc ac am local oscillator input connect directly to v ss . 76 v ss ? ss connect to gnd. connect directly to v ss . 77 e01 o e01 h/l phase comparator output must be used. 78 e02 o e02 h/l phase comparator output connect directly to v ss . 79 test1 i test1 connect to gnd. must be used. 80 xout o xout connection for the 4.5 mhz crystal must be used. continued from preceding page. pin assignment
lcd panel no. 4643-9/23 LC7232N-8819 s1 s2 s3 s4 s5 s6 s7 s8 s9 s10 s11 s12 s13 s14 s15 s16 s17 com1 fm lw 1 1a am 1h 1c t-on 2f 2e 2d 2a 3f 3e 3d 3a 4f com2 mw sw 2 st pm 1d, e, g 1b auto 2b 2g 2c dp1 3b 3g 3c dp2 4b s18 s19 s20 s21 s22 s23 s24 s25 s26 s27 s28 com1 4e 4d 4a colon 5 khz mute 7f 7e 7d 7a cmo2 4g 4c 4i t-off sleep mhz 6b, c 7b 7g 7c s-bass 1. clock 2. tuner 3. memory write me key rme key
no. 4643-10/23 LC7232N-8819 4. cd 5. tape 6. aux 7. phono function selection table when selfun = 0: the function is determined by the states of the func0 and func1 input ports. (the chattering exclusion time is 40 ms.) band switching output table sw band limits func0 func1 function 0 0 tuner 10cd 0 1 tape 1 1 phono ??= gnd, ??= +5 v pin band fm/am mw lw/sw1 sw2/ab fm h h h l mw llhl lw l h l l sw1 l h l l sw2 l h h h swa/b l h h h any setting other than tuner l h h l frequency range (mhz) sw1 2.28 to 2.495 3.2 to 3.4 3.8 to 4.0 4.75 to 5.06 5.95 to 6.23 sw2 7.1 to 7.3 9.5 to 9.9 11.65 to 12.5 13.6 to 13.8 15.1 to 15.6 17.55 to 17.9 21.45 to 21.85 frequency range (mhz) swa 5.95 to 6.23 7.1 to 7.3 9.5 to 9.9 11.65 to 12.5 13.6 to 13.8 15.1 to 15.6 swb 3.8 to 4.0 4.75 to 5.06 5.95 to 6.23 7.1 to 7.3 9.5 to 9.9 11.65 to 12.5
key functions 1. ch1/timer-on , ch2/timer-off , ch3 to ch8 , me during frequency display these keys are used to write to and read from preset memory. write when the me key is pressed the figure flashes in the frequency display and the write state is entered for 5 seconds. if one of the ch1 to ch8 keys is pressed again during that 5 second interval, the frequency is stored in that channel memory. if the fm band is selected, and the me key is pressed during the 5-second write state interval, the figure flashes in the display, and the frequency can be stored in channel ch9 to ch16 by pressing one of the ch1 to ch8 keys. pressing the me key again clears the write state. if the am band is selected, pressing the me key while the display is flashing clears the write state. for the fm band, the mo/st state is also stored with the frequency. pressing either the ch-up/t-on or the ch-down/t-off key during the write enabled state clears the write state and recalls the contents of the preset memory. read when the fm band is selected, pressing one of the ch1 to ch8 keys once recalls the frequency and mo/st state for that channel, and pressing that key a second time recalls the frequency for the corresponding channel in channels 9 through 16. when an am band is selected, pressing one of the ch1 to ch8 keys once recalls the frequency for that channel. during clock or timer adjustment display (the ch3 to ch8 keys function in the same manner as they do in frequency display.) when the me key is pressed, the colon between the hour and minute displays flashes, and the system enters clock adjustment mode. in this mode the t-up key adjusts the minute setting and the t-down key adjusts the hour setting. t-up key : pressing this key once increments the minute setting, and holding it down in excess of 500 ms increments the minute setting at 8 minutes per second. during this operation the seconds setting is set to zero by the reset, and there is no carry performed out of the minutes settings. t-down key: pressing this key once increments the hour setting, and holding it down in excess of 500 ms increments the hour setting at 4 minutes per second. during this operation the seconds setting is not affected. the colon between the hour and minute displays remains lit while either of the t-up or t-down key is pressed. return to normal operation: ?if no key is pressed for 5 seconds, clock adjustment mode is automatically cleared. ?pressing the me key twice clears clock adjustment mode. ?pressing any other key clears clock adjustment mode and executes that key? function. pressing the ch1/timer-on key recalls the on timer setting, lights the t-on indicator, and flashes the colon between the hour and minute displays. in this mode, the t-up key adjusts the minute setting and the t-down key adjusts the hour setting. (500 ms lit, 500 ms off) no. 4643-11/23 LC7232N-8819
pressing the ch2/timer-off key recalls the off timer setting, lights the t-off indicator, and sets the colon between the hour and minute displays flashing. in this mode, the t-up key adjusts the minute setting and the t-down key adjusts the hour setting. t-up key : pressing this key once increments the minute setting, and holding it down in excess of 500 ms increments the minute setting at 8 minutes per second. t-down key : pressing this key once increments the hour setting, and holding it down in excess of 500 ms increments the hour setting at 4 minutes per second. the colon between the hour and minute displays remains lit while either the t-up or t-down key is pressed. ch2/timer-off key when the on timer setting was adjusted: recalls the time of the on timer setting. ch2/timer-off key when the on timer setting was not adjusted: recalls the previous time setting. return to normal operation: ?if no key is pressed for 5 seconds, timer adjustment mode is automatically cleared. ?pressing any key twice clears timer adjustment mode. ?pressing any other key clears timer adjustment mode and executes that key? function. when timer adjustment mode is cleared, the t-on or t-off indicator will be lit and the system will enter timer operation mode. 2. ch-up/t-on , ch-down/t-off , r-me , set , disp/time these keys are for use with the remote control. during frequency display these keys are used to write to and read from preset memory. write when the r-me key is pressed mch no ??flashes in the frequency display and the write state is entered for 5 seconds. during this interval, the ch-up/t-on and ch-down/t-off keys are used to select the mch no to write to. each time one of these keys is pressed the write time is updated. if the r-me key is pressed while the display is flashing the frequency is stored in the flashing mch, the write state is cleared, and the flashing display returns to normal. if the fm band is selected, the mo/st state is also saved. when no mch no is displayed, mch no 1 will flash when the r-me key is pressed, and if an mch no is displayed, that number will flash when the r-me key is pressed. if one of the ch1 to ch8 keys are pressed during this write enable state, the write enable state is cleared and contents of that preset memory are recalled. no. 4643-12/23 LC7232N-8819
read when no channel number is displayed, pressing the ch-up/t-on key recalls mch1, and pressing ch-down/t-off recalls mch8 (mch16 for the fm band). when a channel number is displayed, pressing the ch-up/t-on key recalls the channel with the next higher number, and pressing the ch-down/t-off key recalls the channel with the next lower number. if either key is held down for over 700 ms, then the channel will be changed every 400 ms. during clock or timer adjustment display when the set and disp/time keys are pressed at the same time, the colon between the hour and minute displays flashes, and the system enters clock adjustment mode. in this mode the t-up key adjusts the minute setting and the t-down key adjusts the hour setting. * the system will not respond to an independent press of the set key. t-up key: pressing this key once increments the minute setting, and holding it down in excess of 500 ms increments the minute setting at 8 minutes per second. during this operation the seconds setting is set to zero by the reset, and there is no carry performed out of the minutes settings. t-down key: pressing this key once increments the hour setting, and holding it down in excess of 500 ms increments the hour setting at 4 minutes per second. during this operation the seconds setting is not affected. the colon between the hour and minute displays remains lit while either the t-up or t-down key is pressed. return to normal operation: ?if no key is pressed for 5 seconds, clock adjustment mode is automatically cleared. ?pressing the set key clears clock adjustment mode. ?pressing any other key clears clock adjustment mode and executes that key? function. pressing the set and ch-up/t-on keys at the same time recalls the on timer setting, lights the t-on indicator, and flashes the colon between the hour and minute displays. in this mode, the t-up key adjusts the minute setting and the t-down key adjusts the hour setting. (500 ms lit, 500 ms off) pressing the set and ch-down/t-off keys at the same time recalls the off timer setting, lights the t-off indicator, and flashes the colon between the hour and minute displays. in this mode, the t-up key adjusts the minute setting and the t-down key adjusts the hour setting. t-up key: pressing this key once increments the minute setting, and holding it down in excess of 500 ms increments the minute setting at 8 minutes per second. t-down key: pressing this key once increments the hour setting, and holding it down in excess of 500 ms increments the hour setting at 4 minutes per second. the colon between the hour and minute displays remains lit while either the t-up or t-down key is pressed. set key + ch-down/t-off key when the on timer setting was adjusted: recalls the time of the on timer setting. set key + ch-down/t-off key when the on timer setting was not adjusted: recalls the previous time setting. no. 4643-13/23 LC7232N-8819
return to normal operation: ?if no key is pressed for 5 seconds, timer adjustment mode is automatically cleared. ?pressing the set key clears timer adjustment mode. ?pressing any other key clears timer adjustment mode and executes that keys function. when timer adjustment mode is cleared, the t-on and/or t-off indicators will be lit and the system will enter timer operation mode. 3. t-up , t-down pressing one of these keys increments the frequency by 1 step, either up or down. if the key is held down for over 500 ms, the ic enters search mode, and it automatically searches for the next station and holds the received station. the search speed is 60 ms per step for the fm band, and 70 ms per step for the am bands. when the frequency gets to the boundary of one band and switches to the next band, the ic waits for about 500 ms. 4. fm , mw , lw (sw1) , sw2 (swa) (swb) these are band switching keys. 5. band this is a band selection key. each time it is pressed the band changes. other than world mode: fm mw (sw1/lw) (sw2) world mode: fm sw mw lw 6. tuner , cd , tape , aux , phono these are function switching keys. tuner key when this key is pressed, data is sent to the source selector (lc7821n), and the source is switched to the tuner. the display then displays the frequency. cd key when this key is pressed, data is sent to the source selector (lc7821n), and the source is switched to the cd player. the display then displays ?d? tape key when this key is pressed, data is sent to the source selector (lc7821n), and the source is switched to the tape player. the display then displays ?ape? aux key when this key is pressed, data is sent to the source selector (lc7821n), and the source is switched to the aux input. the display then displays ?ux? no. 4643-14/23 LC7232N-8819
phono key when this key is pressed, data is sent to the source selector (lc7821n), and the source is switched to the record player. the display then displays ?ho? 7. func this is a function selection key. each time it is pressed the function switches as follows. when antiphon = 0: tuner cd tape aux phono when antiphon = 1: tuner cd tape aux 8. mo/st this key is only accepted when the fm band is selected. it switches the mo/st port output. 9. mute each time this key is pressed the states of the mute indicator and the mute output are inverted. however, note that if this key is pressed to clear the muting function while band switching or seeking, although the key will be accepted and the muting indicator turned off, the muting function itself will not be cleared. pressing any key other than the clock related keys will clear the muting function if the muting function is enabled. key indicator state output state mute mute on h off l 10. bass this key controls the super-bass function. each time this key is pressed the states of the bass indicator and the bass output are inverted. also, loudness switching data is sent to the electronic volume control (lc7535). key indicator state output state transmitted data bass bass on h loudness on off l loudness off 11. power this key controls the system power. each time the key is pressed the powout output state is inverted. when the power is on, the frequency and the name of the current function are displayed, and when the power is off, if the clock is enabled the clock is displayed, and if the clock is disabled, the display is turned off. 12. v-up , v-down these are the electronic volume up and down keys, and they transmit data to the electronic volume ic (lc7535). each time one of these keys is pressed the volume is increased or decreased by 1 db, and if one of these keys is held down for over 500 ms, the volume is increased or decreased at 1 db every 150 ms. while these keys are held down, a high level is output from the vup or vdown port. no. 4643-15/23 LC7232N-8819
13. sleep this key sets the sleep function time. when the sleep key is pressed when the sleep indicator is off, the sleep indicator lights and is displayed. while the sleep time is displayed, each time the sleep key is pressed the sleep time is reduced by 10 minutes. however, if this key is pressed when is displayed, the sleep time will be reduced by 9 minutes, and the display will then read . if the sleep time becomes 0, the sleep indicator is turned off and sleep setting mode is cleared. when the sleep time has been set to the desired value, the display will return to the previous state after 5 seconds. to confirm the remaining sleep time, press the sleep key when the system is in clock or function display mode. after 5 seconds the display will return to its previous state. the ic does not respond to the sleep key in the power off state. 14. display this key switches the display priority. display key function display clock display in clock priority display: a key related to a function is pressed. five seconds after key operations are completed. clock display function display clock display ? while the mute key is on, display for the current function is performed. in function priority display, the clock is only displayed when the power is off. when the power is on the current function is displayed. 15. timer this key turns the t-on and t-off indicators on and off. when on, timer operations can be performed, and when off timer operations cannot be performed. timer key t-on, t-off indicator t-on, t-off indicator on off no. 4643-16/23 LC7232N-8819
timing 1. auto up, auto down notes: if count tolerance 2. up, down (for both fm and am) 3. timer timings during timer operation, the timing is as follows when the timer set time arrives. example: timer set times on: 10:00 off: 12:00 * sd is checked every 5 ms, and if three out of three were ok, then sd is considered on. no. 4643-17/23 LC7232N-8819 fm 10.7 mhz 10 khz mw 450/468 khz 3 khz sw 450 khz 1.5 khz lw 450/468 khz 0.6 khz
no. 4643-18/23 LC7232N-8819 example: timer set times on: 10:00 off: 10:00 4. relation between sleep and timer operation when timer and sleep operations overlap, the following sequence occurs. example: timer set times on: 10:00 off: 12:00
no. 4643-19/23 LC7232N-8819 a
5. audio mute (mute) key chattering time (40 ms) audio mute function lead time (50 ms) (note that the lead time for items e and f is 100 ms.) inter-station waiting and processing times, e.g., the time to transfer data to the pll audio mute function tail time processing time for data transfer to the source selector (lc7821n) (1 to 5 ms) a. band, ch1 to ch8, ch-up, ch-down no. 4643-20/23 LC7232N-8819 b. t-up, t-down c. holding down the ch-up or ch-down key d. auto up, auto down e. function switching f. power on/off a data item is sent to the lc7535 just before power off. a data item is sent to the lc7535 just after power on. following power on, the original volume is restored from the setting at a speed of 1 db every 40 ms. if the original volume level was over ?6 db, the volume is restored only to ?6 db, i.e., levels greater than ?6 db will not be restored automatically.
g. backup mode when the hold input is switched from high to low, input to the fmosc, amosc, ifin, and sd pin is disabled, the 4.5 mhz crystal oscillator is stopped, and the ic enters the power save mode state. this is called backup mode. tracking point frequency no. 4643-21/23 LC7232N-8819 - pll stopped * since the mute pin goes to the high impedance state, a pull down resistor is used to hold it at the low level. to area band ch1 ch2 ch3 ch4 ch5 ch6 ch7 channels 8 and above china fm 87.0 90.1 98.1 106.1 108.0 87.0 87.0 87.0 mwa 531 603 999 1404 1602 531 531 531 mwb 522 603 999 1404 1611 522 522 522 sw1 2.28 2.495 4.0 6.0 6.23 2.28 2.28 2.28 sw2 7.1 9.5 15.1 21.45 21.85 7.1 7.1 7.1 usa (1) fm 87.5 90.1 98.1 106.1 107.9 87.5 87.5 87.5 mwa 531 603 999 1404 1602 531 531 531 mwb 530 600 1000 1400 1710 530 530 530 usa (2) fm 87.5 90.1 98.1 106.1 108.0 87.5 87.5 87.5 mwa 531 603 999 1404 1602 531 531 531 mwb 530 600 1000 1400 1710 530 530 530 europe fm 87.5 90.0 98.0 106.0 108.0 87.5 87.5 87.5 mwa 531 603 999 1404 1602 531 531 531 mwb 522 603 999 1404 1611 522 522 522 lw 146 164 209 263 281 146 146 146 middle east fm 87.5 90.0 98.0 106.0 108.0 87.5 87.5 87.5 mwa 531 603 999 1404 1602 531 531 531 mwb 522 603 999 1404 1611 522 522 522 sw1 2.28 2.495 4.0 6.0 6.23 2.28 2.28 2.28 sw2 7.1 9.5 15.1 21.45 21.85 7.1 7.1 7.1 eastern europe fm 66.0 67.5 69.0 71.5 72.0 66.0 66.0 66.0 mwa 531 603 999 1404 1602 531 531 531 mwb 522 603 999 1404 1611 522 522 522 lw 146 164 209 263 281 146 146 146 sw swa 5.95 6.20 9.9 13.80 15.60 5.95 5.95 5.95 swb 3.80 5.00 7.10 11.65 12.50 3.80 3.80 3.80 japan/south africa fm 76.0 78.6 83.0 86.6 90.0 98.0 106.0 108.0 mwa 531 603 999 1404 1602 531 531 531 mwb 522 603 999 1404 1611 522 522 522 sw swa 5.95 6.20 9.9 13.80 15.60 5.95 5.95 5.95 swb 3.80 5.00 7.10 11.65 12.50 3.80 3.80 3.80 world fm 87.5 90.0 98.0 106.0 108.0 87.5 87.5 87.5 mwa 531 603 999 1404 1602 531 531 531 mwb 522 603 999 1404 1611 522 522 522 lw 146 164 209 263 281 146 146 146 sw swa 5.95 6.20 9.9 13.80 15.60 5.95 5.95 5.95 swb 3.80 5.00 7.10 11.65 12.50 3.80 3.80 3.80
no. 4643-22/23 LC7232N-8819 remote control note: * 1. the states of c0 to c3 should be set to match the diode matrix. (0 = gnd, 1 = v dd ) ?the keys from key number 0 to 13 are used for the cd player. ?the keys from key number 14 to 31 are used for the radio. function switch (lc7821n) states this table shows the states of the lc7821n switches for each function. note: 0: off 1: on key no. key name 0 clear 1 one play 2 fb/b-scan 3 ff/f-scan 4 cd-display 5 stop 6 play/pause 7 repeat 8 program 9 random 10 intro 11 a-b repeat 12 open/close 13 p-mode 14 15 band key no. key name 16 mo/st 17 bass 18 v-dn 19 v-up 20 set 21 disp/time 22 ch-down/t-off 23 ch-up/t-on 24 timer 25 sleep 26 t-dn 27 t-up 28 r-me 29 mute 30 func. 31 power sw1 sw2 sw3 sw4 sw5 sw6 sw7 sw8 tuner 10001000 cd 01001001 tape 00000110 aux 00011000 phono 00101000
ps no. 4643-23/23 LC7232N-8819 initial states function: tuner band: fm, frequency: lower edge of the band preset memory: tracking point frequency memory write: off mo/st: stereo mute: off power: off volume setting: ?0 db clock: 12h: 12:00 } the flashing continues. 24h: 0:00 timer setting: 10:00 sleep timer: off display priority: function t-on, t-off indicators: off conditions clock display: europe, eastern europe, world: 24 hour china, usa, middle east, japan, south africa: 12 hour colon: lit this catalog provides information as of july, 1999. specifications and information herein are subject to change without notice. specifications of any and all sanyo products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer? products or equipment. to verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer? products or equipment. sanyo electric co., ltd. strives to supply high-quality high-reliability products. however, any and all semiconductor products fail with some probability. it is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. when designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. in the event that any or all sanyo products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of sanyo electric co., ltd. any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. when designing equipment, refer to the ?elivery specification for the sanyo product that you intend to use. information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. sanyo believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.

▲Up To Search▲

Price & Availability of LC7232N-8819

	To Download LC7232N-8819 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .