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silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 1 13 memory tone / pulse dialer with redial save handfree & hold function description the SC91650a/b, sc91651a/b, sc91652a/b are 13-memory tone/pulse switchable dialer with last number redial(lnb) and hold function, which are fabricated in coms technology with wide operating voltage for both tone and pulse mode, and consumes very low memory retention current in on-hook state. features *13-memory tone/puls e switchable dialer *three 16-digit one touch memory and ten 16-digit two touch memory one 32-digit last number redial memory one 32-digit save function for storing phone number in off hook status note: only 15-digit/31-digit for tone mode, 1-digit use to identify tone mode *pulse-to-tone (p ? t) is provided for pbx operation *flash key is available *minimum tone duration is 100ms for SC91650, sc91651 or 91ms for sc91652 *minimum intertone pause is 106ms for SC91650, sc91651 or 91ms for sc91652 *uses 3.579545mhz crystal or ceramic resonator *many options can be selected mode (10pps; 20pps; tone) m/b ratio (40:60;33:66) pause time (3.6s;2.0s) pulse number (n;n+1;10-n) flash function (reset;digit) (p ? t) pause time (3.6s;1.0s) flash time (80ms; 93ms; 100ms; 200ms; 300ms; 600ms) flash pause time (200ms; 1000ms) * redial pause time (1ms) * mixed dialing and cascade dialing is provided * handfree function is provided for speaker phone application dip-22 dip-18 *power on reset circuit is provided *hold function is provided * keytone is provided *packaged in 18-dip or 22-dip ordering information SC91650a dip-18 package SC91650b sc91651a sc91651b sc91652a sc91652b dip-22 package dip-18 package dip-22 package dip-18 package dip-22 package
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 2 pin configurations 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 SC91650/1a c2 c3 c4 c1 hks osci osco tone v ss r3 r2 r1 r4 po xmute 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SC91650/1b v dd osci osco v ss xmute hks tone po v dd 21 20 19 18 17 22 hdi hfo mode hdo c5 mode hfi r3 r2 r1 r4 c2 c3 c4 c1 c5 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 sc91652a c2 c3 c4 c1 hks osci osco tone v ss r3 r2 r1 r4 po xmute 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 sc91652b v dd osci osco v ss xmute hks tone po v dd 21 20 19 18 17 22 pmute hfo mode kt c5 mode hfi r3 r2 r1 r4 c2 c3 c4 c1 c5 selection guide hdi hfi po pmute kt tone duration SC91650a n n inverter n n 100ms SC91650b inverter n n 100ms sc91651a n n open drain n n 100ms sc91651b open drain n n 100ms sc91652a n n open drain n n 91ms sc91652b n open drain y y 91ms
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 3 block diagram osc. divider row interface ckt. column interface ckt. kernel control ckt. input interface ckt. input interface ckt. lnb memory d/a converter row/column programming counter decoder & data latch pulse generator po tone vss hdi hks row4 row3 row2 row1 osco osci col4 col3 col2 col1 xmute hfo vdd col5 save memory memory mode hfi hdo kt vdd vdd
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 4 keyboard assignment c1 c2 c3 c4 c5 r1 123saveem1 r2 456fem2 r3 789aem3 r4 */t 0 # rd/p st 1) */t: in pulse mode, execute p ? t function; in tone mode, execute * key 2) save: save key. 3) f: flash key 4) rd/p: redial key/pause key 5) st: store key 6) emn: one touch memory key 7) a: auto key for two touch memory dialing signal option the resistor connection between selected row (or column) and vss may select most country telecom specifications (refer to row and column pin description). those options include m/b ratio, flash time, pause time ?? , as follows. a): make/break ratio: d): flash time: row1 m/b ratio (%) row3 row4 flashtime(ms) nr 40:60 nr nr 600 r 33:66 nr r 300 r nr 93 *100 b): pause time & p ? t wait time: r r 200 *80 row2 t p (sec) t pt (sec) *for sc91652 only nr 3.6 3.6 r 2.0 1.0 e): dialing out pulse number: column3 column4 pulse number c): flash key function: nr nr n column1 flash key t fp (sec) nr r n+1 nr reset 0.2/0* r nr 10-n r digit 1.0 r r reserved * for flash time = 80ms, 200ms only
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 5 note: 1). nr = no resistor connection to vss. 2). r = a resistor connection to vss (820k typically). 3). n = pressed digit key. 4). the following list is the corresponding pulse (break) numbers that are sent out by pressed the number keys. digit key normal (n) new zealand (10-n) sweden/denmark (n+1) 11 9 2 22 8 3 33 7 4 44 6 5 55 5 6 66 4 7 77 3 8 88 2 9 99 1 10 010 10 1 *p ? t key p ? t key p ? t key # ignored ignored ignored dialing signal option absolute maximum ratings (tamb=25 c, all voltage referenced to v ss , unless otherwise specified) characteristic symbol value unit power supply voltage v dd 6.0 v input voltage v in -0.3~v dd +0.3 v power dissipation p d 500 mw operating temperature topr -25~+70 c storage temperature tstg -55~+150 c
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 6 electrical characteristics (tamb=25 c, v dd =2.5v, fosc=3.579545mhz, all voltage referenced to v ss, unless otherwise specified) parameter symbol conditions min typ max unit dc characteristics tone 2.0 -- 5.5 pulse 2.0 -- 5.5 operating voltage v dd memory retention 1.0 5.5 v tone -- 0.4 1 off-hook, keypad entry with pull down resistance -- 0.2 0.5 ma operating current i op pulse off-hook, no keypad entry 20 80 m a standby current i s on-hoo k no keypad entry -- 0.1 1.0 m a memory retention current imr on-hoo k v dd =1.0v -- 0.1 1.0 m a control pin input low voltage vil -- v ss 0.3v dd control pin input high voltage vih -- 0.7v dd v dd v xmute pin leakage current imth v xmute =6.0v -- -- 1 m a xmute pin sink current imtl v xmute =0.5v 0.2 -- -- ma hks pin input current ihks vhks=2.5v -- -- 0.1 m a drive current ikbd vn=0v note1 , no resistors connected t o v ss 21050 keyboard scanning pin sink current ikbs vn=2.5 note1 no resistors connected t o v ss 200 400 800 m a key-in debounce time t db -- -- 20 -- ms hfi pin input resistor rhfi v dd =2.5v -- 200 -- k w hfo pin drive current ihdoh vhfo=2.0v 0.2 -- -- ma hfo pin sink current ihdol vhfo=0.5v 0.2 -- -- ma hdi pin pull high resistor rhdi v dd =2.5v -- 200 -- k w hdo pin drive current ihdoh vhdo=2.0v 0.2 -- -- ma hdo pin sink current ihdol vhdo=0.5v 0.2 -- -- ma pulse mode pulse output pin leakage current ipoh vpo=2.0v(SC91650 only) 0.2 -- -- ma pulse output pin sink current ipol vpo=0.5v 0.2 -- -- ma -- 10 -- pulse rate fpr -- 20 -- pps -- 40:60 -- make/break ratio t m t b -- 33:66 -- % (to be continued)
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 7 (continued) parameter symbol conditions min typ max unit m/b ratio=40:60 -- 40 -- pre-digit pause t pdp m/b ratio=33:66 -- 33 -- ms pulse rate=10pps -- 800 -- inter-digit pause t idp pulse rate=20pps -- 500 -- ms tone mode dc level vdc v dd =2.0v~5.5v 0.5v dd -- 0.7v dd v sink current itl vdtmf=0.5v 0.2 -- -- ma ac level vdtmf row group r l =5k w 130 155 180 mvrms tone output pin load resistor ri dist. -23db 5 -- -- k w pre-emphasis twist v dd =2.0~5.5 v, column-row group 123db dtmf signal distortion dist. r l =5k w -- -30 -23 db -- 100 -- ms minimum tone duration time (note 3) t td auto redial -- 91 -- ms -- 106 -- ms minimum intertone pause time (note 3) t itp auto redial -- 91 -- ms note: 1. vn: input voltage of any keyboard scanning pin (row group, column group) 2 distortion (db) = 20log {[ v 1 2 +v 2 2 +v 3 2 +vn 2 ) 1/2 ] / [ (v l 2 +v h 2 ) 1/2 ]} v l ,v h : row group and column group signal , v1 v2 vn: harmonic signal (bw = 300hz ~ 3500hz actual frequency output (fosc=3.579545mhz) keyboard scanning pin standard(hz) output deviation(%) r1 f1 697 699 +0.28 r2 f2 770 766 -0.52 r3 f3 852 848 -0.47 r4 f4 941 948 +0.74 c1 f5 1209 1216 +0.57 c2 f6 1336 1332 -0.30 c3 f7 1477 1472 -0.34
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 8 pin description pin no. 650a/b 651a/b 652a/b pin name description 121212 c1 232323 c2 343434 c3 454545 c4 565656 c5 15 18 15 18 15 18 r1 16 19 16 19 16 19 r2 17 20 17 20 17 20 r3 18 21 18 21 18 21 r4 *provides keyboard scanning. a. dialling option: *the resistor connection between selected row (or column) and vss may select most countries telecom specification. r=820k r1 r2 r3 r4 c4 c3 c2 c1 b. keyboard scanning: *while hks pin is high, both column pin and row pin are in floating state. while hks pin is low, the column group stays in high state and row group stays in low state. *the keypad is compatible with the standard dual contact matrix keyboard (as figure1b), the inexpensive single contact keyboard (as figure 1a), and electronic input (as figur e 1c). *when hks is low, a valid key entry is defined by related row & column connection or by electronic input (as shown in figur e 1c). *activation of two or more keys will result in no response, except for single key. *to avoid keyboard-bouncing error, this chip provides built-in debounce circuit. (th e debounce time = 20ms) v dd column row column row column v ss v dd v ss row figure1a: single contact form keyboard configuration figure1b: dual contact form keyboard configuration figure1c: electronic signal input keyboard configuration (to be continued)
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 9 (continued) pin no. 650a/b 651a/b 652a/b pin name description 676767 osci 787878 osco *oscillator input & output pins. *the 3.579545mhz oscillator is formed by a built-in inverter inside of this chip and by connecting a 3.579545mhz crystal or a ceramic resonator across the osci and osco pins. (built-in feedback resistor and capacitor) *when hks is low, a valid key-in may turn on this oscillator and generates a 3.579545 mhz clock. 898989 xmute *mute output pins. *nmos open drain output structure. *the output is in low state during dialing sequence (both pulse and tone mode) and in hold status otherwise this pin is high-impedance. *long (continue) mute. 9 10 9 10 9 10 vss *negative power supply pin. 10 13 10 13 10 13 vdd *positive power supply pin. 11 14 11 14 11 14 hks *hook switch input pin. *when the handset is in on-hook state, this pin must be pulled high in order to disable the dialing operation and decrease the power consumption. *when in off-hook state, th e hks pin must be pulled low state for all function operation. 12 15 12 15 12 15 po *pulse output signal pin. *inverter output structure (SC91650). *the output is low during pulse dialing and flash operation, otherwise this output is high. *nmos open drain output structure. 13 16 13 16 13 16 tone *dual tone multi-frequency output pin. *in tone mode, when an entry of digit key (include *, # key), this pin will send out a corresponding dtmf signal. *the tone pin provides minimum tone duration (t td ) and minimum intertone pause time to support rapid key-in. if key-in time is less than t td ( 100ms), dtmf signal will last for t td ( 100ms); otherwise the tone duration will last as long as the key is pressed. 14 17 14 17 14 17 mode *mode select pin. *tri-state input structure. *this pin can select following three modes. (to be continued)
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 10 (continued) pin no. 650a/b 651a/b 652a/b pin name description 11 11 hfi *handfree input control pin. (SC91650, sc91651) *toggle input structure, rising edge trigger. *it is used to enable and disable handfree funtion. *with waveshaped by a built-in schmit trigger, the bounce of input can be eliminated by external r c debounce circuit. * a built-in pull down resistor is 200k w typical. 11 hfi * toggle input structure with pull up resistance 200k w , falling edge trigger. (sc91652) 12 12 12 hfo * handfree output pin. * inverter output structure (normally low, active high). * when a hfi pin is active, handfree function will be enabled (hfo=1) or disable (hfo=0). * when the handfree function is enable (hfo=1), after off-hook action, it can reset handfree function and hfo pin return to low state. 11 hdi *hold line input control pin. *toggle input structure, falling edge trigger. *it is used to enable and disable hold line function. *with waveshaped by a built-in schmit trigger, the bounce of input can be eliminated by extenal r.c debounce circuit. *a built-in pull up resistor is 200k w typically. 22 22 hdo *hold line output pin. *inverter output structure, falling edge trigger. *when a falling edge signal triggered hdi pin, hold line function will be enable (hdo=1) or disabled(hdo=0). *when the hold line function is enable (hdo=1), after off-hook action or hfo pin is from low to high, it can reset hold line function and hdo pin return to low state. 22 kt *keytone output pin for ralid key pad input and memory stored (sc91652 only). *cmos invertor output structure. *it will issue a 1.2khz, duty cycle 50% signal with duration 30ms. *to prevent signal interference, while dtmf issue, it will disable keytone output except function key. 1pmute *pulse mode mute. *cmos inverter output structure. *the output is high state during dialing sequence (pulse mode only), otherwise this pin is low.
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 11 keyboard operation symbol definitions: a) - : off-hook or enable hand free function. b) : on-hook or disable hand free function. c) : input level from low to high. d) : input level from high to low. e) d1~dn : digit key 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, (c1~cn is same as d1~dn). f) dp1~dpn : pulse digit 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, (cp1~cpn is same as dp1~dpn). g) dt1~dtn : tone digit 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, (ct1~ctn is same as dt1~dtn). h) t f :flashtime. i) t p : pause time. j) t pt : pulse to tone wait time. k) t fp : pause time for flash. l) t rp : pause time for redial. m) lnb : last number redial buffer. n) m 1 ? m m : memory location; 1, 2, 3, 4, 5, 6, 7, 8, 9, 0. a normal dialing 1. digit dialing procedure - d1, d2, dn dial out dt1, dt2, dtn (in tone mode) dial out dp1, dp2,, dpn (in pulse mode) lnb d1, d2, dn 2. dialing with flash key procedure - f,d1,d2,dn dial out t f ,t fp , dt1, dt2, dtn (in tone mode) dial out t f ,t fp , dp1, dp2, , dpn (in pulse mode) lnb d1, d2, dn (reset function only) lnb : un change (digit function only) 3. dialing with p ? tkey procedure - d1,d2,p ? t,, dn dial out dp1, dp2, , t pt , , dpn (in pulse mode) lnb d1,d2,p ? t,, dn note: if key in digit over maximum digit stored in lnb, then rd is inhibit even after on/off hook.
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 12 b mixed dialing procedure - d1, d2, mode= ,d9,d10, dn ;or - d1, d2, p ? t , d9, d10 , dn dial out dp1, dp2, , t pt ,dt9,dt10,dtn lnb d1, d2, p ? t , d9, d10 , dn c redial lnb d1,d2,dn procedure - rd dial out t rp , dt1, dt2, dtn (in tone mode) dial out t rp , dp1, dp2,, dpn (in pulse mode) note: if key in digit over maximum digit stored in lnb, then rd is inhibit. d pause function procedure - d1, d2, dn, p, c1 , cn dial out dt1, dt2 ,, dtn, t p , ct1, ctn (in tone mode) dial out dp1, dp2, dpn , t p , cp1 , cpn (in pulse mode) lnb d1,d2,dn,p,c1,c2,cn e flash function 1. reset procedure - d1, d2, dn, f, c1 , cn dial out dt1, dt2,, dtn , t f ,t fp , ct1 , ctn (in tone mode) dial out dp1, dp2,, dpn , t f ,t fp , cp1 , cpn (in pulse mode) lnb c1,c2,cn 2 digit procedure - d1, d2, dn, f, c1 , cn dial out dt1, dt2,, dtn , t f ,t fp , ct1 , ctn (in tone mode) dial out dp1, dp2,, dpn , t f ,t fp , cp1 , cpn (in pulse mode) lnb d1,d2,dn
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 13 f one touch memory function 1. store memory procedure - st, d1, d2, dn, st, emn dial out nothing emn = d1, d2, dn procedure - st, d1, d2,f, dn, st, emn dial out nothing emn = d1, d2,,f, dn procedure - st, d1, d2,p, dn, st, emn dial out nothing emn = d1, d2,,p, dn procedure - st, d1, d2,p ? t, d n , s t, e m n dial out nothing emn = d1, d2,, p ? t, dn 2 quickly store procedure - st, d1, d2, st, em1, st, d3, d4, d5, st, em2, st, emn dial out nothing em1 = d1, d2; em2 = d3, d4, d5, emn = d3, d4, d5 lnb d1,d2,dn 3 redial emn = d1 , d2, dn procedure - emn dial out dt1, dt2, dtn (in tone mode) dial out dp1, dp2, dpn (in pulse mode) lnb d1, d2,dn g two touch memory function 1. store memory procedure - st, d1, d2, dn, st, emn dial out nothing emn = d1, d2, dn procedure - st, d1, d2,f, dn, st, emn dial out nothing emn = d1, d2,,f, dn procedure - st, d1, d2,p, dn, st, emn dial out nothing emn = d1, d2,,p, dn
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 14 procedure - st, d1, d2,p ? t, d n , s t, e m n dial out nothing emn = d1, d2,, p ? t, dn 2 quickly store procedure - st, d1, d2, st, em1, st, d3, d4, d5, st, em2, st, emn dial out nothing em1 = d1, d2; em2 = d3, d4, d5, emn = d3, d4, d5 lnb d1,d2,dn 3 redial emn = d1 , d2, dn procedure - emn dial out dt1, dt2, dtn (in tone mode ) dial out dp1, dp2, dpn (in pulse mode) lnb d1, d2,dn h save function 1. the second redial memory procedure - d1, d2 , dn, dialing end, save dial out dt1, dt2 , dtn (in tone mode) dial out : dp1, dp2, dpn (in pulse mode) lnb d1, d2, dn 2 store phone number in conversation procedure - st, d1, d2, dn, conversation, st, c1, c2, cn, st, save dial out dt1, dt2 , dtn (in tone mode) dial out : dp1, dp2, dpn (in pulse mode) save : c1, c2, cn lnb : c1, c2, cn note: if key in digit over maximum digit stored in save, then save is ignore. the data in save is no change, and can dial out after on/off hook. 3 redial save : d1, d2, dn procedure - save dial out dt1, dt2, dtn (in tone mode ) dial out dp1, dp2, dpn (in pulse mode) lnb d1, d2,dn(sc91652 only) lnb : un change (SC91650, sc91651)
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 15 i cascade dialing 1. normal dialing and memory procedure - d1,d2,dn,em1,emmemn,a,mn 2. one touch memory and memory procedure - emmemn,a,mn 3. lnb and memory procedure - rd, em1, emm emn, a, mn 4. save and memory for sc91652 only procedure - save, em1, emm emn, a, mn handfree function operation: a) to execute handfree function: when hfo = low, hfi pin is active, the handfree function will be enabled (hfo = high) b) reset handfree function: a. off-hook action. b. when hfo = high, a hfi pin is active again, the handfree function will be reset (hfo=low). c. when hdo pin is from low to high, the handfree function will be reset (hfo=low). hold line function operation: a) to execute hold line function: when hfo = high state or hks is low, hdi pin is active, the hold line function will be enable ( hdo = high ). the xmute pin keep to low, when hdo stays in high state. b) reset hold line function: a. off-hook action. b. hfo pin from low to: high level. c. when hdo = high, hdi pin is active, the hold line function will be disabled (hdo=low). operating flow chart of handfree (3) off hks hf line (2) off hks line (1) on hks hf line (0) on hks initial on hf hf on off hf off hf (4) off hks line (5) on hks hf line hd hd hd hf on on hd hf hd off hd
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 16 state no. po xmute hfo hdo (0) initial state 0/f f 0 0 (1) on hks hf line 1/f f 1 0 (2) off hks line 1/f f 0 0 (3) off hks hf line 1/f f 1 0 (3) off hks hd line 1/f 0 0 1 (3) on hks hd line 1/f 0 0 1 on/off: on/off hks hf: depress hf key hd: depress hf key f: floating (hi-impedance) po is floating for sc91651/ sc91652 open drain struc-ture. test circuit a hks v ss mode v dd dp dp dt keyboard operation current 1 2 standby current v+ tone output voltage 3 tone distortion 4 keyboard hks v ss tone v dd v+ keyboard counter and ac meter 10k hks v ss tone v dd v+ spectrum analyzer v 10k a hks v dd v ss v+ hks v ss r* v dd keypad input current (row group) 7 v+ c* row mode a pulse output sink current (open drain structure) 5 6 pulse output sink current (inverter structure) 8 hks v ss r* v dd v+ c* column mode a po flash key hks v ss v dd v+ v vext a po v ss v dd v+ hks v vext a keypad input current (column group)
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 17 note: 1. dist. (db)=20log {[ v 1 2 +v 2 2 +v 3 2 +v n 2 ) 1/2 ] / [ (v l 2 +v h 2 ) 1/2 ]} a. v1vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500hz to 3400hz band. b. v l ,v h are the individual frequency components of dtmf signal. c. whether keyboard is pushed refer to the tone mode time diagram. 2. sink current isink=i/(1-duty cycle), i is the net dc current measured from ampere meter. 3. r*, c* mean other column and row. timing diagrams 3 2 3 hks key in xmute **po tone osco t td t itp t itp normal dialing ......high impedance t db t itp tone mode timming diagram 3 2 3 hks key in xmute **po tone osco t td t idp t idp normal dialing ......high impedance t db t pdp t b t m t idp pusle mode timming diagram pmute
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 18 timing diagrams (continued) 3 2 3 hks key in xmute **po tone osco t idp t idp ......high impedance t db t itp p t t pdp t pt timming waveform for mixed dialing operation (by */t key entry) for SC91650, sc91651 3 2 3 hks key in xmute **po tone osco t idp t idp ......high impedance t db t itp t pdp t pt timming waveform for mixed dialing operation (by mode selection pin switches) for SC91650, sc91651 mode
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 19 timing diagrams (continued) 3 2 3 hks key in xmute po dtmf osco t idp t idp ......high impedance t db t itp */t t pdp t pt timming waveform for mixed dialing operation (by */t key entry) for sc91652 only f hks key in xmute po tone osco t db t f ......high im pedance flash key operating timming
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 20 timing diagrams (continued) 3 2 3 hks key in xmute po dtmf osco t idp t idp ......high impedance t db t itp t pdp t pt timming waveform for mixed dialing operation (by mode selection pin switches) for sc91652 only mode
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 21 timing diagrams (continued) 1 rd hks key in xmute **po tone osco ......high im pedance t db 2 t itp t itp t itp t d t itp tone mode redial timming diagram 3 rd hks key in xmute **po tone osco ......high im pedance t db 2 t idp t idp t idp t idp t rp pulse mode redial timming diagram t rp auto dialing
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 22 timing diagrams (continued) xmute **po tone osco ......high im pendance t db t itp t p t itp 3 3 hks key in xmute **po tone osco t db p t pdp t idp 2 t idp t idp t p t itp pause key operating timming (for SC91650, sc91651) *tone mode *pulse mode
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 23 timing diagrams (continued) xmute po dtmf out osco ......high im pendance t db t itp t p t itp 3 3 hks key in xmute po dtmf osco t db p t pdp t idp 2 t idp t idp t p t itp pause key operating timming(for sc91652 only) *tone mode *pulse mode f hks key in xmute **po tone osco ......high impedance t db flash key operation timing t f t fp
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 24 typacal application circuit (for SC91650a) SC91650a 15 16 17 18 4 3 2 1 9 12 10 11 13 6 7 8 speech network v ss v dd tone osci osco 3.3k 47k 100k 22m a92 100 f 16v 470k on hook tip ring 1n4004x4 100k 2sc945 3.579545mhz znr 120v sa f a rd/p 3 6 9 # 2 5 8 0 1 4 7 */t em1 em2 em3 st xmute hks a42 240k po 820k x7 r1 r2 r3 r4 c4 c3 c2 c1 5 c5 14 mode vdd 10pps 20pps mode sw 220k 1.5k 200 2sc945 0.2 f off hook 0.1 f zd 5.1v in4148 2.2k in4148 1 f 16v r0.01 f tone
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 25 typacal application circuit (for SC91650b) SC91650b sa f a rd/p 3 6 9 # 2 5 8 0 1 4 7 */t em1 em2 em3 st 21 20 8 7 2 3 4 5 6 10 17 vdd 10pps 20pps tone 0.01 f mode sw 820k x7 2to4wire speech network & audio amplifier to handset 12 9 16 19 18 13 14 h66t 15 11 22 1 on hook tip ring 1n4004x4 znr 120v v ss v dd tone osci osco xmute hks po r1 r2 r3 r4 c4 c3 c2 c1 c5 mode hfo hfi hdo hdi 3.579545mhz 200 0.2 f c945 4.7k in4148 5.1v 1 f 470k 0.1 f 47k hf key 1 f 100k c945 in4148 200k 4.7k 100k 22m mpsa92 240k 3.3k c945 47 f 2.7v 1.2k 1 f 1 f v dd c945 hd key 1 f 470k 22k c945 10 f 50v 100 f 16v 100k 220k 2.2k 1 2 3
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 26 typacal application circuit (for sc91651a) sc91651a 15 16 17 18 4 3 2 1 9 12 10 11 13 6 7 8 2wireto4wire speech netwok v ss v dd tone osci osco 2.2k 100k 22m mpsa92 100 f 16v 470k hook sw on tip ring 1n4004x4 100k 2sc945 3.579545mhz znr 120v sa f a r/p 3 6 9 # 2 5 8 0 1 4 7 */t em1 em2 em3 st xmute hks mpsa42 40k po 820k x7 r1 r2 r3 r4 c4 c3 c2 c1 5 c5 14 mode vdd 10pps 20pps tone 220k off 0.1 f 2.7k in4148x2 1 f 16v r0.01 f mode sw 330k in4148 100k 100 f 16v zd 5.1v
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 27 typacal application circuit (for sc91651b) sc91651b sa f a rd/p 3 6 9 # 2 5 8 0 1 4 7 */t em1 em2 em3 st 21 20 8 7 2 3 4 5 6 10 17 vdd 10pps 20pps tone 0.01 f mode sw 820k x7 2to4wire speech network & audio amplifier to handset 12 9 16 19 18 13 14 h66t 15 11 22 1 on hook tip ring 1n4004x4 znr 120v v ss v dd tone osci osco xmute hks po r1 r2 r3 r4 c4 c3 c2 c1 c5 mode hfo hfi hdo hdi 3.579545mhz 200 0.2 f c945 4.7k in4148 5.1v 1 f 470k 0.1 f 47k hf key 1 f 100k c945 in4148 200k 4.7k 100k 22m mpsa92 240k 3.3k c945 47 f 2.7v 1.2k 1 f 1 f v dd c945 hd key 1 f 470k 22k c945 10 f 50v 100 f 16v 100k 220k 2.2k 1 2 3 hfo 47k 100k 330k
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 28 typacal application circuit (for sc91652a) sc91652a 15 16 17 18 4 3 2 1 9 12 10 11 13 6 7 8 2wireto4wire speech netwok v ss v dd tone osci osco 2.2k 100k 22m mpsa92 100 f 16v 470k hook sw on tip ring 1n4004x4 100k 2sc945 3.579545mhz znr 120v sa f a r/p 3 6 9 # 2 5 8 0 1 4 7 */t em1 em2 em3 st xmute hks mpsa42 240k po 820k x7 r1 r2 r3 r4 c4 c3 c2 c1 5 c5 14 mode vdd 10pps 20pps tone 220k off 0.1 f 2.7k in4148x2 1 f 16v r0.01 f mode sw 330k in4148 100k 100 f 16v zd 5.1v
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 29 typacal application circuit (for sc91652b) sc91652b sa f a rd/p 3 6 9 # 2 5 8 0 1 4 7 */t em1 em2 em3 st 21 20 2 3 4 5 6 10 17 vdd 10pps 20pps tone 0.01 f mode sw 820k x7 2to4wire speech network & audio amplifier to handset 12 9 16 19 18 13 14 15 11 7 8 on hook tip ring 1n4004x4 znr 120v v ss v dd tone osci osco xmute hks po r1 r2 r3 r4 c4 c3 c2 c1 c5 mode hfo 200 0.2 f c945 in4148 5.1v 1 f 470k 47k hf key 1 f 100k c945 in4148 200k 100k 22m mpsa92 240k 3.3k c945 1 f 100 f 16v 2.2k 3.579545mhz 22 1 pmute kt hfi hfo 47k 100k 330k
silan semiconductors SC91650/1/2 a/b hangzhou silan microelectronics joint-stock co.,ltd rev: 1.0 2001.01.15 30 package outline dip-18-300-2.54 unit:mm 6.40 2.54 3.51 5.08 3.30 7.62 0.25 15 degree 0.46 22.95 1.50 dip-22-400-2.54 unit: mm 9.34 3.51 15 degree 0.46 27.88 1.50 5.08 3.30 2.54 10.16 0.25

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