??? ? 0755 - 61169046 SCTX2B/sdrx2bd ( no s &cic0515) five functions remote controller page 1 of 5 features ? wide operating sctx 2b voltage range: 2.4v to 12v ? sctx 2b very low stand - by current ? few external components needed ? s drx2bd built - in 3.8v zener general description the SCTX2B/rx2bd are a pair of cmos lsis designed for remote controlled car applicati ons. the SCTX2B/rx2bd have five control keys controlling the motions ( i.e. forward, backward, rightward, leftward, and the turbo function ) of the remote controlled car. absolute maximum ratings dc supply voltage ----------------------------- 0.3v to 5.0v input/output voltage --------------------------- gnd C 0.2v to vdd+0.2v operating temperature ------------------------- - 10 to 60 storage temperature ---------------- - 25 to 125 comment* never allow a stress the values listed under absolute maximum ratings , otherwise the device would suffer from a permanent damage. nor is a stress at the listed value be allowed persist over a period, since an extended exposure to the absolute maximum rating condition may also affect the reliability of the device, if not c ausing a damage thereof. oscillation frequency ? SCTX2B vdd= 3.0v rosc=250k fosc=110khz~130khz ? sdrx2bd vdd=3.8v rosc=220k fosc=110khz~130khz electrical characteristics SCTX2B operating voltage vdd 2.4v 4v 5v operating current idd 0.5 ma - - 1ma stand - by current istb - - - - 3ua dc o/p driving current idrive 2.5ma - - - - ac o/p driving current idrive 2.5ma - - - - effect en coding frequency variation faudio 500hz - - 1khz sdrx2bd built - in 3.8v zener .
??? ? 0755 - 61169046 SCTX2B/sdrx2bd ( no s &cic0515) five functions remote controller page 2 of 5 parameter symbol min. ty p . max. operating voltage vdd 2.4v 3.8v 12.0v operating current idd -- -- 30ma dc o/p driving current idrive 1ma -- -- ac o/p driving current isink 1ma -- -- effect decoding frequency variation itolerance - 15% -- 15% p in desc ription SCTX2B pin symbol function 1 rightb the rightward function will be selected when this pin is connected to gnd. 2 testb test pin 3 gnd negative power supply. 4 back wardb the backward function will be selected when this pin is connected to gnd . 5 forwardb the forward function will be selected when this pin is connected to gnd. 6 turbob the turbo function will be selected when this pin is connected to gnd. 7 sc output pin of the encoding signal with carrier frequency 8 so output pin of the e ncoding signal. 9 vdd positive power supply 10 pc power control output pin. when any function key is pulled low, pc will be high logic. 11 osco oscillator output pin 12 osci oscillator input pin 13 fosc test pin 14 leftb the leftward function will be selected when this pin is connected t gnd 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title number revision size b date: 16-aug-2005 sheet of file: e:\ \ ? \ ? -0\SCTX2B(scrx2bc).ddb drawn by : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 rightb testb gnd back wardb forwardb turbob sc so vdd pc osc0 osc1 fosc leftb ic:SCTX2B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 gnd si osc0 osc1 right left rdb vi2 vi1 vdd turbo forward back ward ldb ic:sdrx2bd vo1 vo2
??? ? 0755 - 61169046 SCTX2B/sdrx2bd ( no s &cic0515) five functions remote controller page 3 of 5 sdrx2bd pin symbol function 1 vo2 inverter 2 output pin for power amplify 2 gnd negative power supply. 3 si input pin of the encoding signal 4 osci oscillator input pin 5 osco oscillator output pin 6 right rightward output pin 7 left leftward output pin 8 rdb right disable pin 9 ldb left disable pin 10 back ward backward output pin 11 forward forward output pin 12 turbo turbo output pin 13 vdd positive power supply 14 vi1 inverter 1 input pin for signal amplify 15 vo1 inverter 1 output pin for signal amplify 16 vi2 inverter 2 input pin for signal amplify pad location 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title number revision size b date: 16-oct-2003 sheet of file: e:\ ? \xie\SCTX2B(scrx2bc).ddb drawn by : vdd pc osco osci fosc left right test gnd back for tur sc so SCTX2B sub to vdd 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title number revision size b date: 25-nov-2004 sheet of file: e:\ ? \sctx2rx2.ddb drawn by : vo2 vss si osci osco right left vi2 vo1 vi1 vdd turbo for back rob sub to vdd sdrx2bd lob
??? ? 0755 - 61169046 SCTX2B/sdrx2bd ( no s &cic0515) five functions remote controller page 4 of 5 application circuit : 1 for sdrx2bd: operating voltage resister for supply current of vd d 4.5v 180 6.0v 270 9.0v 470 12.0v 560 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title number revision size b date: 1-nov-2006 sheet of file: e:\ \ ? \ ? -0\zbo\SCTX2B(sdrx2bd).ddb drawn by : c1/10p c2/5p c3/47p c4/332 c5/471 c6/104 c7/30p c8/102 c9/104 c10/100n c13/1u/10v c15/220u c16/220u c17/100u l1/3.3uh md1 md2 q1/1815gr q2/9014d q3/c2500 q4/c1815 q5/c2500 q6/c1815 q7/c2500 q8/c1815 q9/c2500 q10/c1815 q11/928a q12/a1160 q13/a1160 q14/a1160 q15/a1160 r1/360r r2/5k6 r4/5.6m r5/2.2k r6/2.2m r7/2k2 r8/220k r9/100r r10/5k6 r11/4.7k r12/100r r r14/10k r15/220r r16/100r r17/5.6k r20/5.6k r21/100r r24/4.7k r25/100r r28/100r r29/4.7k antenna sdrx2bd 1 16 9 8 470nh 11t 103 104 9v r3/4k7
??? ? 0755 - 61169046 SCTX2B/sdrx2bd ( no s &cic0515) five functions remote controller page 5 of 5 2 for SCTX2Bd : 1 2 3 4 5 6 a b c d 6 5 4 3 2 1 d c b a title number revision size b date: 16-oct-2003 sheet of file: e:\ ? \xie\SCTX2B(scrx2bc).ddb drawn by : r1/220k q1/c945 q2/c1959y cryst al r2/330r r3/47k r4/150r r5/10k l1/1uh l 2/10uh l3/10.5t c1 /104 c2/0.01u c5/82p c6/18p c7/68p c8/220p c9/0.1u bat t ery/9v r7/470 SCTX2B 1 14 2 3 4 5 6 7 8 9 10 11 12 13 27m 1815y 8550d pnp 4.7k 0.0047u 0.1u 33p 2.2k l 1k 18p 4.7k 10k 1uh 56p 1k c18/220p z1 3.9v/1w
|
