Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features General Description • PT8A977B works as encoder and PT8A9781 The PT8A977B and PT8A9781 provide a complete works as decoder control functions to the remote-controlled toy. The • Four control functions PT8A9781 has four output pins corresponding with • Operating power-supply voltage: 1.8V to 5.0V(977B) the four actions i.e, forward, backward, right, left. 1.0V to 1.5V (9781) The received signals are amplified by the three-stage • Auto-power-off and oscillation-off if no press on amplifier, and then the appropriate amplified signals any button (977B) are sampled, fault-tolerantly checked and decoded • Press on any button to wake up (977B) to control the actions of the remote-controlled toy. • On-chip oscillator with an external resistor (977B) There is an internal oscillator in the PT8A9781. By • On-chip oscillator with an external resistor and adding an external resistor and capacitor conveniently, capacitor (9781) the oscillator will be constructed. The external resistor • On-chip amplifiers (9781) and capacitor can adjust the oscillator frequency. The • Low operating current relative error between the frequencies of the two on- • Few external components needed chip oscillators in the PT8A977B and PT8A9781 must Ordering Information 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 PT0118(02/04) 1 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram Block Diagram of 977B OFF OSCI OSCO Forward Backward Left Right Turbo Oscillator Timing Generator Input Circuit Encoding Circuit PC SO Output Circuit SC Block Diagram of 9781 OSCI OSCO Timing Generator Oscillator Amp SI Latch Signal Sample & Fault-Tolerant Check VI1 Amp Decoding Circuit VI2 VO1 Output Circuit Right Left Backward Forward Voltage Booster FOUT Amp VO2 Voltage Reference VR Pin Configuration PT8A977BP/977BW 14-Pin DIP/14-Pin SOIC Right Test GND Backward Forward Turbo SC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 PT8A9781W 16-Pin SOIC Left OFF OSCI OSCO PC VCC SO VO2 SI GND OSCI OSCO Left FOUT Forward 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VI2 VR VO1 VI1 VCC NC Right Backward Top View PT0118(02/04) 2 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pad Location PT8A977BDE Test Right Left OFF OSCI Die_No GND 1245 µ m Backward Forward OSCO Turbo SC V CC SO PC X Y 1160 µ m Pad Coordinates Pad Name Right X Coordinate 1048.5 Y Coordinate 388 Pad Name SO X Coordinate 96 Y Coordinate 469.5 Test GND Backward 1033 903 773 100 100 100 V CC PC OSCO 96 270 510.5 714 918.5 937.5 Forward Turbo 643 513 100 100 OSCI OFF 1048.5 1048.5 790.5 658 Left 1048.5 523 SC 269.5 115 Note: Substrate is connected to V CC PT0118(02/04) 3 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pad Location PT8A9781DE SI VO2 VI2 VR AGND VO1 DGND VI1 AVDD DVDD OSCO Die No. 1240um OSCI RIGHT LEFT FOUT Forward Backward 1140um Pad Coordinate File Pad Name X Coordinate VO2 8.9 SI -105.7 AGND -398.9 DGND -398.9 OSCI -398.9 OSCO -398.9 Left -398.9 FOUT -188 Forward 2.7 Note: Substrate is connected to GND PT0118(02/04) Y Coordinate Pad Name X Coordinate Y Coordinate 451.4 451.4 313 192.6 40.8 -227.7 -373.7 -451.3 -451.3 Backward Right DVDD AVDD VI1 VO1 VR VI2 127.3 398.9 398.9 398.9 398.9 398.9 280.9 160.7 -451.3 -354.4 -234 -88 26.6 178.4 451.4 451.4 4 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin/Pad Description Pin/Pad Description of 977B Pin No. 1 Right 2 Test GND Description With Pull-up resistor, rightward function selected if this pin connected to GND. With Pull-up resistor, this pin is used for testing mode. Negative power supply Backward With Pull-up resistor, backward function selected if this pin connected to GND. With Pull-up resistor, forward function selected if this pin connected to GND. 7 Forward Turbo SC 8 SO Output pin of the encoding signal without carrier frequency 9 10 Vcc Positive power supply PC Power control output pin 11 12 OSCO Oscillator output pin OSCI Oscillator input pin 13 14 OFF With Pull-up resistor, this pin is used to shut down the external power supply. Left With Pull-up resistor, leftward function selected if this pin connected to GND. 3 4 5 6 Pin/Pad Name With Pull-up resistor, turbo function selected if this pin connected to GND. Output pin of the encoding signal with carrier frequency Pin/Pad Description of 9781 Pin No. Pin/Pad Name Description VO2 SI Output pin for the amplifier 2 2 3 GND 4 5 OSCI OSCO 6 Left 7 Output pulse with 50% duty cycle, fequency is about 64kHz. 8 FOUT Backward 9 Forward Forward output pin 10 Right 1 AGND DGND Input pin of the encoding signal Analog ground, bonded to DGND as GND Digital ground, bonded to AGND as GND Oscillator input pin Oscillator output pin Leftward output pin Backward output pin Rightward output pin DVDD Digital power supply, bonded to AVDD as VCC Analog power supply, bonded to DVDD as VCC 12 VCC 13 14 VI1 VO1 Input pin for the amplifier 1 15 VR Amplifier bias voltage 16 VI2 Input pin for the amplifier 2 AVDD Output pin for the amplifier 1 Note: additional VCC may be needed for on-chip analog circuit. PT0118(02/04) 5 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Storage Temperature ..............................................................-25oC to +85o C Ambient Temperature with Power Applied ..........................10oC to +40o C Supply Voltage to Ground Potential (Inputs & VCC 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 & VCC 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 MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational 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 Parameters VCC Description ICC Operating Voltage Supply Current ISTB VIL VIH Stand-by Current Input Low Voltage Input High Voltage Test Condition Max. 5.0 Units V Output unloaded 100 uA OFF State Guaranteed Logic LOW level Guaranteed Logic HIGH level VIL = 0V, ON state 5 0.8 uA V V IIL IIH Input Low Current Input High Current Pin 1, 4, 5, 6, 14 Pin 1, 4, 5, 6, 14 VIH = 4V, ON state II Input Current Pin 12 IOL Output Low Current VIH = 0 ~ 4V, ON state VOUT = 0.5 V VOUT = 3.5 V VOUT = 3.5 V IOH Output High Current Pin 7, 8, 10 Pin 11 Min. 1.8 Type 4.0 3.0 -60 10 uA uA ±10 150 uA uA -1.0 -500 mA uA Note: Over the Operating Rating, 0OC ≤ TA ≤ 70OC, VCC = 4V PT0118(02/04) 6 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Electrical Charateristics of 9781 Sym Description Test Conditions Min. Type Max. Unit 1.0 1.2 1.5 V - - 3.0 mA V CC-0.2 - - V VCC Operating Voltage I CC Supply Current Output load * V OH1 Output High Level1 Forward,Backward, (I OH1 =-150uA) VOL1 Output Low Level1 Forward,Backward,(I OL1=4mA) - - 0.2 V V OH2 Output High Level2 Left, Right, FOUT, (IOH2=-1mA) V CC-0.2 - - V VOL2 Output Low Level2 - - 0.2 V IOH1 Output High Current1 -150 - - uA I OL1 Output Low Current1 4 - - mA IOH2 Output High Current2 -0.8 - - mA I OL2 Output Low Current2 Left, Right, FOUT, (IOL2=150uA) Forward,Backward, ( VOUT=V CC0.2V) Forward,Backward, (VOUT =0.2V) Left, Right, FOUT ( VOUT=V CC0.2V) Left, Right, FOUT(V OUT=0.2V) 150 - - uA TA = 10~40°C, V cc = 1.0V~1.5V * 2.2MΩ feedback resistors for the two reversing amplifiers; 9.1kΩ external resistor and a 180pf capacitor for the on-chip oscillator. AC Electrical Characteristics AC Electrical Characteristics of 977B Parameters fOSC fmax -fmin Test Condition Description Oscillator Frequency * Oscillator Frequency Fluctuation 25OC, T A= R = 200 kΩ T A=25OC, VCC= 1.8 ~ 5V Min. Type Max. Units 102 128 154 15 κΗz kΗz t FUN t STA Cycle Time of Function Code Cycle Time of Start Code fOSC = 102 to 154 kHz 0.8 1 1.2 ms fOSC = 102 to 154 kHz 1.6 2 2.4 ms fCSC Carrier Frequency of SC Pin fOSC = 102 to 154 kHz 51 64 77 kHz Note: Over the Operating Rating, 0OC ≤ TA ≤ 70OC, VCC = 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 Sym fOSC Description Test Conditions Oscillator Frequency* fFOUT Frequency of FOUT D FOUT Duty Cycle of FOUT Min. Type Max. Unit 119.04 131 136.96 kHz R=9.1kΩ, C=180pf, VCC = 1.0 ~ 1.5V 65.5 kHz 45 50 55 % - - 300 mV Cycle Time of Function Code Guaranteed Effective Decoding - 0.75 1 1.25 ms Cycle Time of Start Code - 1.5 2 2.5 ms VSI SI Pin Receive Sensitivity TFUN TSTA TA = 10~40°C, Vcc = 1.0V~1.5V * The relative error between the frequencies of the two on-chip oscillators in the PT8A977B and PT8A9781 must be less than ±25%. PT0118(02/04) 7 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Application Circuits C6 103 C8* 47p Q2 C945 R4 100 C3* X1* R3* D1 4.7V C1 10u C2 0.1u R2 330 L1* Q1 C945 47p C4 R5* C5 47 R7 1k R6 100 LED1 L2* C7 C10 0.01u S1 L3 12T C9* 9V A1 L4 2.2uH Typical Application of PT8A977B For Transmit Circuit PT8A977B 10 11 R1 200k 12 13 PC Turbo Forward OSCO Backward OSCI GND OFF Test Left Right 6 5 4 3 2 1 L 14 VCC 7 B F 9 SC SO R 8 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 PT0118(02/04) 8 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Typical Application of PT8A9781 For Receive Circuit Notes : 1. Accuracy of R8 is 1%. 2. Accuracy of C5 should be <= 10%. 3. All 8550 and 8050 transistor's Hfe >= 200. ANTENNA A1 C2* C1* 1.2V L1* Q7* R9 R1* Q2 C18 10UF R17 270 VCC R16 C4 C6* R3 2.2K R18 1M C7 C8 R4 C13 47UF R10 30* C10 104 C11 R11 30* Q4 8050 Q3 8050 R12 20* 470P R13 20* VCC 2.2K 1.2V R14 Q5 8050 20* X2 1 2 3 4 5 6 7 8 PT8A9781 C17 X1 VI2 VR VO1 VI1 Vcc NC Right Backward 4.7UF VO2 SI GND OSCI OSCO Left FOUT Forward 1M 16 15 14 13 12 11 10 9 R19 R7 2.2M - B1 1.2V R6 2.2M 104 104 A 1.2V 20* C12* Q1 8550 M1 3.3K R2* C9 104 8550 + L2* C3* C16 104 C14 104 R15 R5 2.2K C15 332 R8 9.1k Q6 8050 20* C5 180p * Consult factory for details PT0118(02/04) 9 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Mechanical Diagram of 14-pin SOIC PT0118(02/04) 10 Ver:3 Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Notes Pericom Technology Inc. Email: [email protected] 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. PT0118(02/04) 11 Ver:3