Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features General Description • PT8A977B works as encoder and PT8A978B/ The PT8A977B and PT8A978B (or 978BL) provide 978BL works as decoder complete control functions to the remote-controlled • Five pins for five control functions toy. The PT8A977B has five input pins corresponding • Operating power-supply voltage: 2.5V to 5.0V (978B), with the five function buttons i.e, forward, backward, 2.0V to 5.0V (978BL), 1.8V to 5.0V(977B) rightward, leftward and turbo. The encoding circuit • Auto-power-off and oscillation-off if no press on in the PT8A977B sends digital codes to the two output any button (977B) pins SO and SC. The digital codes correspond to the • Press on any button to wake up (977B) definite function buttons or their combinations. The • One output pin used for external power control SO and SC outputs are used in wireless and infra-red (977B) applications respectively. • On-chip oscillator with an external resistor The PT8A978B (or 978BL) has five output pins • On-chip reversing amplifiers (978B, 978BL) corresponding with the five actions. The received • Low operating current signals are amplified by the three-stage amplifier, and • Few external components needed then the appropriate amplified signals are sampled, • Package: 14-pin DIP, 14-pin SOIC, 16-pin DIP fault-tolerantly checked and decoded to control the and 16-pin SOIC actions of the remote-controlled toy. There is an internal oscillator in the PT8A977B and Ordering Information 978B/978BL respectively. By adding an external Part No. Package PT8A977BP 14-pin DIP PT8A977BW 14-pin SOIC by the external resistor. The relative error between PT8A977BDE Die Form the frequencies of the two on-chip oscillators in the PT8A978BP 16-pin DIP PT8A978BLW 16-pin SOIC PT8A978BDE Die Form resistor conveniently, the oscillator will be constructed. The oscillator frequency can be adjusted PT8A977B and PT8A978B/978BL must be less than ±25%. The auto-power-off function is achieved by an internal counter (977B). The PC output is used to control on/ off state of the external power supply. Press on any function button will wake up the chip promptly. PT0085(02/04) 1 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram Block Diagram of 977B OFF OSCI Oscillator Timing Generator Input Circuit Encoding Circuit PC OSCO Right Left Turbo SO Output Circuit SC Forward Backward Block Diagram of 978B/978BL OSCI Timing Generator Oscillator Right Latch Left OSCO Output Circuit SI Amp. Signal Sample & Fault-Tolerant Check VI1 Amp. VO1 VI2 Turbo Forward Backward Decoding Circuit LD Control Logic Amp. RD VO2 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 PT8A978BP/978BLW 16-Pin DIP/16-pin SOIC VO2 GND SI OSCI OSCO Right Left RD Left OFF OSCI OSCO PC VCC SO 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VI2 VO1 VI1 VCC Turbo Forward Backward LD Top View PT0085(02/04) 2 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 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 Test X Coordinate 1048.5 Y Coordinate 388 Pad Name SO X Coordinate 96 Y Coordinate 469.5 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 PT0085(02/04) 3 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pad Location PT8A978BDE Backward LD Left RD Right Forward OSCO Die_No Turbo 1520µm VCC VI1 OSCI VO1 VI2 VO2 GND X SI Y 1335µm Pad Name VO2 GND SI X Coordinate 174.5 174.5 157 Pad Coordinates Y Coordinate Pad Name 623 LD 759 Backward 896.5 Forward OSCI 443 1123 OSCO 1007 1123 Right 1253 1131 Left 1322 853 RD 1322 618.5 Note :Substrate is connected to Vcc PT0085(02/04) X Coordinate 1322 1292 991.5 Y Coordinate 328.5 99.5 100.5 Turbo 703.5 100.5 Vcc VI1 VO1 VI2 470 174.5 174.5 174.5 101.5 204 338 489 4 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 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 978B/978BL Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PT0085(02/04) Pin/Pad Name Description VO2 Output pin for the amplifier 2 GND SI Negative power supply Input pin of the encoding signal Oscillator input pin OSCI OSCO Oscillator output pin Right Left Rightward output pin Leftward output pin RD With Pull-up resistor, rightward function disabled if this pin connected to GND. LD Backward With Pull-up resistor, leftward function disabled if this pin connected to GND. Backward output pin Forward Forward output pin Turbo Vcc Turbo output pin VI1 VO1 Input pin for the amplifier 1 Output pin for the amplifier 1 Input pin for the amplifier 2 VI2 Positive power supply 5 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Storage Temperature ..............................................................-25oC to +85o C Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied .........................-10oC to +40o C RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & VCC Only) .... -0.5 to +6.0V device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +6.0V operation of the device at these or any other condiDC Input Voltage ....................................................................... -0.5 to +6.0V tions above those indicated in the operational secDC Output Current ................................................................................ 20mA tions of this specification is not implied. Exposure Power Dissipation .............................................................................. 500mW to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Charateristics DC Electrical Charateristics of 977B Parameters Description Test Condition VCC ICC Operating Voltage Supply Current ISTB VIL VIH Stand-by Current Input Low Voltage Input High Voltage IIL IIH Input Low Current Input High Current II IOL Input Current Pin 12 Output Low Current IOH Output High Current Min. 1.8 Type 4.0 Output unloaded OFF State Pin 1, 4, 5, 6, 14 Guaranteed Logic LOW level Guaranteed Logic HIGH level VIL = 0V, ON state Pin 1, 4, 5, 6, 14 VIH = 4V, ON state Pin 7, 8, 10 Pin 11 Max. 5.0 100 Units V uA 5 uA 0.8 V V -60 10 uA uA ±10 3.0 VIH = 0 ~ 4V, ON state VOUT = 0.5 V 150 uA uA VOUT = 3.5 V VOUT = 3.5 V -1.0 -500 mA uA Note: Over the Operating Rating, 0oC ≤ TA ≤ 70oC, VCC = 4V DC Electrical Charateristics of 978B/978BL Parameters VCC Description Test Condition Operating Voltage - 978B Operating Voltage - 978BL 2.0 ICC Supply Current Output unloaded ISTB VIL VIH IIL Stand-by Current Input Low Voltage Input High Voltage OFF State Guaranteed Logic LOW level Guaranteed Logic HIGH level IIH II IOL IOH Min. 2.5 Type 4.0 Max. 5.0 Units V 5.0 1 V mA 10 0.8 uA V V 3.0 Input Low Current Pin 3, 8, 9 VIL = 0V, ON state -60 uA Input High Current Pin 3 VIH = 4V, ON state 60 uA Input High Current Pin 8, 9 VIH = 4V, ON state 10 uA Input Current Pin 14, 16 Pin 1, 15 VIH = 0 ~ 4V, ON state VOUT = 0.5 V ±10 200 uA uA Pin 5 Pin 6, 7, 10, 11, 12 Pin 1, 15 VOUT = 0.5 V VOUT = 0.5 V VOUT = 3.5 V 500 1 -200 uA mA uA Pin 5 Pin 6, 7, 10, 11, 12 VOUT = 3.5 V VOUT = 2.5 V -500 -600 uA uA Output Low Current Output High Current Note: Over the Operating Rating, 0oC ≤ TA ≤ 70oC, VCC = 4V PT0085(02/04) 6 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics AC Electrical Characteristics of 977B Parameters fOSC fmax -fmin Description Oscillator Frequency * Oscillator Frequency Fluctuation Test Condition 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 Min. Type Max. Units 102 128 154 kΗz 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 PT8A978B (or 978BL) must be less than +25%. AC Electrical Characteristics of 978B/978BL Parameters fOSC fmax -fmin Description Test Condition Oscillator Frequency * T A= 25oC, R = 200 kΩ Oscillator Frequency Fluctuation - 978B T A=25oC, VCC=2.5 ~ 5V 15 kΗz Oscillator Frequency Fluctuation - 978BL T A=25oC, 10 kΗz VCC=2.0 ~ 5V SI Pin Receive Sensitivity (VPP ) Guaranteed Effective Decoding 300 t FUN Cycle Time of Function Code fOSC = 128 kHz 0.75 1 1.25 ms t STA Cycle Time of Start Code fOSC = 128 kHz 1.5 2 2.5 ms VSI mV 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 PT8A978B (or 978BL) must be less than +25%. PT0085(02/04) 7 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Application Circuits 49.860MHz 1uH 27.145MHZ 2.2uH X1 L2* 1uH 2.2uH 22k 15k R5* 68k 120k R3* R4 100 C3* 30p 47p C9* X1* R3* D1 4.7V OFF Test Left Right PT0085(02/04) F 100p 22p GND 49MHz OSCI 4 3 2 1 L 14 OSCO Backward 5 47p 13 Forward 6 27MHz R1 200k 12 PC Turbo C3* 11 V CC 7 B 10 SC R 9 SO 180p C8* PT8A977B 8 Frequency C1 10u C2 0.1u R2 330 L1* Q1 C945 47p C4 R5* C5 47 R7 1k R6 100 L1* C6 103 C8* 47p Q2 C945 LED1 L2* C7 C10 0.01u S1 L3 12T C9* 9V A1 L4 2.2uH Typical Application of PT8A977B For Transmit Circuit 8 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Typical Application of PT8A978B/978BL For Transmit Circuit C11 100u A1 C12 0.1u R10 330 C1* C2* D1 3.3V S1 L1* Q1* C3 10p L2* R3 3.9k C5 4.7u Q4 8550 C6* R11 R4 2.2k C9 0.1u 6V Q3 9014 Q6 8050 R12 1k Q7 8050 R5 2.2M R9 200K R8 2.2K 9 R17 220 LD 10 Backward Left 7 11 Forward 6 Right 12 Turbo 5 OSCO 13 VCC OSCI 4 14 VI1 SI 3 15 VO1 GND 2 VI2 VO2 16 C8 470p 1 PT8A978BP M1 C7 0.1u R6 2.2k R7 2.2M Q5 8550 Q2 9014 1k RD R2* R14 100 Q8 9014 C14 104 Q10 8550 Q11 8550 M2 Q12 8050 R15 1k C10 4700p R18 220 Q9 9014 8 C4* C13 104 R13 100 R1* Q13 8050 R16 1k Frequency C1* C2* C3* C4* Q1* R1* R2* L1* L2* 27MHz 10p 47p 47p 3300p C1815-Y 150k 680 7T 8.2uH 49MHz 5p 25p 10p 2200p C380-O 180k 820 5T 3.3uH PT0085(02/04) 9 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Mechanical Diagram of 14-pin SOIC Mechanical Diagram of 16-pin SOIC PT0085(02/04) 10 Ver:5 Data Sheet PT8A977B/978B/978BL 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 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. PT0085(02/04) 11 Ver:5