View PT8A977BP_1543098.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 1 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| features ? pt8a977b works as encoder and pt8a9781 works as decoder ? four control functions ? operating power-supply voltage: 1.8v to 5.0v(977b) 1.0v to 1.5v (9781) ? auto-power-off and oscillation-off if no press on any button (977b) ? press on any button to wake up (977b) ? on-chip oscillator with an external resistor (977b) ? on-chip oscillator with an external resistor and capacitor (9781) ? on-chip amplifiers (9781) ? low operating current ? few external components needed general description the pt8a977b and pt8a9781 provide a complete control functions to the remote-controlled toy. the pt8a9781 has four output pins corresponding with the four actions i.e, forward, backward, right, left. the received signals are amplified by the three-stage amplifier, and then the appropriate amplified signals are sampled, fault-tolerantly checked and decoded to control the actions of the remote-controlled toy. there is an internal oscillator in the pt8a9781. by adding an external resistor and capacitor conveniently, the oscillator will be constructed. the external resistor and capacitor can adjust the oscillator frequency. the relative error between the frequencies of the two on- chip oscillators in the pt8a977b and pt8a9781 must be less than 25%. part no. package PT8A977BP 14-pin dip pt8a977bw 14-pin soic pt8a977bde die form pt8a9781w 16-pin soic pt8a9781de die form ordering information
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 2 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| block diagram of 9781 pin configuration block diagram block diagram of 977b top view 11 vr osci gnd osco left si fout 1 2 3 4 5 6 7 16 15 14 13 12 11 10 vo2 vi2 vo1 vi1 v cc nc right pt8a9781w 16-pin soic off backward gnd forward turbo test sc 1 2 3 4 5 6 7 14 13 12 10 9 8 right left osci osco pc v cc so PT8A977BP/977bw 14-pin dip/14-pin soic forward 8 9 backward output circuit voltage booster oscillator timing generator osci osco right left backward forward fout latch decoding circuit signal sample & fault-tolerant check amp si amp vi2 amp vi1 vo2 vo1 voltage reference vr oscillator timing generator output circuit osci osco so pc input circuit encoding circuit sc forward backward left right turbo off
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 3 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| pad location pt8a977bde 1245 m m 1160 m m die_no right left off osci osco pc v cc so sc turbo forward backward gnd test x y pad coordinates pad name x coordinate y coordinate pad name x coordinate y coordinate right 1048.5 388 so 96 469.5 test 1033 100 v cc 96 714 gnd 903 100 pc 270 918.5 backward 773 100 osco 510.5 937.5 forward 643 100 osci 1048.5 790.5 turbo 513 100 off 1048.5 658 sc 269.5 115 left 1048.5 523 note: substrate is connected to v cc
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 4 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| pad location pt8a9781de vo2 si osci dgnd osco left fout forward backward vi2 die no. 1240um 1140um right dvdd avdd vi1 vo1 agnd vr pad coordinate file pad name x coordinate y coordinate pad name x coordinate y coordinate vo2 8.9 451.4 b ackward 127.3 -451.3 si -105.7 451.4 r ight 398.9 -354.4 agnd -398.9 313 dvdd 398.9 -234 dgnd -398.9 192.6 avdd 398.9 -88 osci -398.9 40.8 vi1 398.9 26.6 osco -398.9 -227.7 vo1 398.9 178.4 l eft -398.9 -373.7 vr 280.9 451.4 fout -188 -451.3 vi2 160.7 451.4 f orward 2.7 -451.3 note: substrate is connected to gnd
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 5 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| pin/pad description of 9781 pin/pad name description vi2 vo2 si osci osco right left backward forward fout dvdd vi1 vo1 agnd input pin for the amplifier 2 output pin for the amplifier 2 input pin of the encoding signal oscillator input pin oscillator output pin rightward output pin leftward output pin backward output pin forward output pin output pulse with 50% duty cycle, fequency is about 64khz. digital power supply, bonded to avdd as v cc input pin for the amplifier 1 output pin for the amplifier 1 analog ground, bonded to dgnd as gnd pin/pad description pin/pad description of 977b pin no. 1 2 5 6 4 7 8 3 9 10 11 12 13 14 pin/pad name off backward gnd forward test turbo sc so v cc pc osco osci left right description with pull-up resistor, this pin is used to shut down the external power supply. with pull-up resistor, backward function selected if this pin connected to gnd. negative power supply with pull-up resistor, forward function selected if this pin connected to gnd. with pull-up resistor, turbo function selected if this pin connected to gnd. with pull-up resistor, leftward function selected if this pin connected to gnd. with pull-up resistor, rightward function selected if this pin connected to gnd. with pull-up resistor, this pin is used for testing mode. output pin of the encoding signal with carrier frequency output pin of the encoding signal without carrier frequency positive power supply power control output pin oscillator output pin oscillator input pin note: additional v cc may be needed for on-chip analog circuit. vr amplifier bias voltage avdd analog power supply, bonded to dvdd as v cc dgnd digital ground, bonded to agnd as gnd 1 2 5 6 4 7 8 3 9 10 16 12 13 14 pin no. 15 gnd v cc
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 6 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| maximum ratings (above which the useful life may be impaired. for user guidelines, not tested) storage temperature .............................................................. -25 o c to +85 o c ambient temperature with power applied .......................... 10 o c to +40 o c supply voltage to ground potential (inputs & v cc only) (977b) .................................................. -0.5 to +6.0v supply voltage to ground potential (outputs & d/o only) (977b) .............................................. -0.5 to +6.0v dc input voltage (977b) .......................................................... -0.5 to +6.0v supply voltage to ground potential (inputs & v cc only) (9781) .................................................. -0.5 to +5.0v supply voltage to ground potential (outputs & d/o only) (9781) .............................................. -0.5 to +5.0v dc input voltage (9781) .......................................................... -0.5 to +5.0v dc output current ................................................................................ 20ma power dissipation .............................................................................. 500mw note: stresses greater than those listed under maxi- mum ratings may cause permanent damage to the device. this is a stress rating only and func- tional operation of the device at these or any other conditions above those indicated in the opera- tional sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. dc electrical charateristics dc electrical charateristics of 977b 1.8 4.0 5.0 v parameters description test condition min. type max. units i cc supply current output unloaded 100 ua v il input low voltage guaranteed logic low level 0.8 v i il input low current -60 ua i oh output high current i ol output low current v out = 3.5 v -1.0 ma v out = 0.5 v 150 ua v cc operating voltage i stb stand-by current off state 5 ua v ih input high voltage guaranteed logic high level 3.0 v i ih input high current pin 1, 4, 5, 6, 14 v ih = 4v, on state 10 ua pin 1, 4, 5, 6, 14 v il = 0v, on state pin 7, 8, 10 pin 11 v out = 3.5 v -500 ua note : over the operating rating, 0 o c t a 70 o c, v cc = 4v i i input current pin 12 v ih = 0 ~ 4v, on state 10 ua
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 7 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ac electrical characteristics ac electrical characteristics of 977b note : over the operating rating, 0 o c t a 70 o c, v cc = 4v * the relative error between the frequencies of the two on-chip oscillators in the pt8a977b and pt8a9781 must be less than 25%. ac electrical characteristics of 9781 parameters description test condition min. type max. units f osc oscillator frequency * t fun cycle time of function code t sta cycle time of start code carrier frequency of sc pin t a = 25 o c, r = 200 k w 102 128 154 kh z f osc = 102 to 154 khz 0.8 1 1.2 ms f osc = 102 to 154 khz 1.6 2 2.4 ms f osc = 102 to 154 khz 51 64 77 khz f csc oscillator frequency fluctuation t a =25 o c, v cc = 1.8 ~ 5v 15 k h z f max -f min sym description test conditions min . type max . unit f osc oscillator frequency * 119.04 131 136.96 khz f fout frequency of fout 6 5.5 khz d fout duty cycle of fout r=9.1k w , c=180pf , v cc = 1.0 ~ 1.5v 45 50 55 % vsi si pin receive sensitivity guaranteed e ffective decoding - - 300 mv t fun cycle time of function code - 0.75 1 1.25 ms t sta cycle time of start code - 1.5 2 2.5 ms t a = 10~40c, v cc = 1.0v~1.5v * the relative error between the frequencies of the two on - chip oscillators in the pt8a977b and p t8a9781 must be less than 25%. dc electrical charateristics of 9781 sym description test conditions min . type max . unit v cc operating voltage 1 . 0 1.2 1.5 v i cc supply current output load * - - 3.0 ma v oh1 output high level1 forward,backward, ( i oh1 = - 150ua) v cc - 0.2 - - v v ol1 output low level1 forward,backward,( i ol1 =4ma ) - - 0.2 v v oh2 output high level2 left, right, fout, ( i oh2 = - 1ma) v cc - 0.2 - - v v ol2 output low level2 left, right, fout, ( i ol2 =150ua) - - 0.2 v i oh1 output high current1 forward,backward, ( v out =v cc - 0.2v) - 150 - - ua i ol1 output low current1 forward, backward, (v out =0.2v) 4 - - ma i oh2 output high current2 left, right, fout ( v out =v cc - 0.2v) - 0.8 - - ma i ol2 output low current2 left, right, fout(v out =0.2v) 150 - - ua t a = 10~40c, v cc = 1.0 v~1.5v * 2.2m w feedback resistors for the two reversing amplifiers; 9.1k w external resistor and a 180pf capacitor for the on - chip oscillator.
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 8 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| application circuits typical application of pt8a977b for transmit circuit frequency c3* c8* c9* r3* r5* l1* l2* x1 27mhz 47p 180p 47p 120k 15k 2.2uh 2.2uh 27.145mhz 49mhz 22p 100p 30p 68k 22k 1uh 1uh 49.860mhz q2 c945 q1 c945 d1 4.7v c2 0.1u c1 10u 9v s1 l3 12t r2 330 right 1 test 2 gnd 3 backward 4 forward 5 turbo 6 sc 7 so 8 v cc 9 pc 10 osco 11 osci 12 off 13 left 14 pt8a977b r3* r4 100 r5* r6 100 c3* c4 47p c5 47 c6 103 c7 47p c9* l4 2.2uh x1* l1* c8* l2* a1 c10 0.01u r7 1k led1 r1 200k l r b f
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 9 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| typical application of pt8a9781 for receive circuit * consult factory for details b1 1.2v a - + m1 q1 8550 q2 8550 q3 8050 q4 8050 a1 antenna c1* c2* c3* c4 c6* c7 104 c11 470p c8 104 c5 180p c12* c13 47uf q7* r1* r2* r3 2.2k r6 2.2m r4 2.2k r7 2.2m r5 2.2k r8 9.1k r9 3.3k l2* vcc 1.2v c9 104 r10 30* r11 30* q5 8050 r12 20* r13 20* r14 20* r15 20* r16 20* 1.2v vcc c10 104 q6 8050 1.2v notes : 1. accuracy of r8 is 1%. 2. accuracy of c5 should be <= 10%. 3. all 8550 and 8050 transistor's hfe >= 200. c14 104 c15 332 x1 x2 vo2 si gnd osci osco left fout forward backward right nc vcc vi1 vo1 vr vi2 pt8a9781 l1* r17 270 c18 10uf c16 104 r18 1m r19 1m c17 4.7uf 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 10 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| mechanical diagram of 14-pin soic
data sheet pt8a977b /9781 5-function remote controller for 1v micro cars pt0118(02/04) ver:3 11 ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| notes pericom technology inc. email: support@pti.com.cn web site: www.pti.com.cn, www.pti-ic.com china : no. 20 building, 3/f, 481 guiping road, shanghai, 200233, china tel: (86)-21-6485 0576 fax: (86)-21-6485 2181 asia pacific : unit 1517, 15/f, chevalier commercial centre, 8 wang hoi rd, kowloon bay, hongkong tel: (852)-2243 3660 fax: (852)- 2243 3667 u.s.a. : 2380 bering drive, san jose, california 95131, usa tel: (1)-408-435 0800 fax: (1)-408-435 1100 pericom technology incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. pericom technology does not assume any responsibility for use of any circuitry described other than the circuitry embodied in pericom technology product. the company makes no representations that circuitry described herein is free from patent infringement or other rights, of pericom technology incorporation.

▲Up To Search▲

Price & Availability of PT8A977BP

	To Download PT8A977BP Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .