Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features General Description • PT8A995 works as encoder and PT8A9961/9962/ The PT8A995 and PT8A996x provide a simple and 9963/9964 work as decoders economic solution for basic Digital Proportional R/C • Supply voltage: 3.3V to 6.0V car toys. The chipset uses CMOS LSI Analog and • Internal auto-shutdown function Mixed Signal technology. They provide high quality • Internal over-load protection to meet HD271 safety encoder/decoder circuit. specification (996x) PT8A995 severs as an encoder. To obtain accurate • Integrated RF circuit (995) timing easily, Manchester encoding is employed. • Two analog channels, one for tachospeed and the Some digital modulation scheme can be used, e.g., other for steering general ASK, OOK, FSK and QPSK. OOK is easy to • 32 steps for each of two analog channels implement and low cost. • Fine tuning selection for two analog channels • Few external components needed The PT8A996x provides a simple and cost effective • Closed loop adjustment for servo motor (996x) solution for basic Digital Proportional R/C car toys • Built-in voltage regulator (996x) with PT8A995 together. RF circuit in receiver side • Package: 16-pin DIP (995P), 20-pin DIP (996xP), can demodulate RF signal. The demodulated signal 20-pin SOIC (996xS), see Ordering Information. will be amplified and filtered. After that, the baseband signal is formed. DPLL is adopted to generate Applications sampling clock. An internal A/D converter is required • Remote Controller to make servo motor work well. The inputs are SRV • Toys and OFFSET. Over-load protection mechanism is • Remote Measurement built-in to meet Toy Safety Requirement. Ordering Information The PT8A996x provide four solutions for toy car by Part Number Package PT8A995P 16-pin DIP PT8A9961P/9962P/9963P/9964P 20-pin DIP PT8A9961S/9962S/9963S/9964S 20-pin SOIC PT0093(10/02) different capability Servo. PT8A9961 PT8A9962 PT8A9963 PT8A9964 mini car 1 small car middle car large car Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram Figure 1. Block Diagram of PT8A995 OSCI OSCO Oscillator Timing Generator F1 F/B L/R Offset1 Offset2 PC Encoder & Logic Control IRout/SC F2 AD SC CA1 CA2 RFout RF Osc Figure 2. Block Diagram of PT8A9961/9962/9963/9964 SI SI_ANA Filter OSCI Timing Generator OSC OSCO DPLL Right Left Forward Header Serial To Parallel PWM & Logic Backward F1 F2 FC CRC check Power On VT1 VT2 V CC Vref REF S1 Current Limiter V CC PID SRV Pull down GND Parameter S2 AD Pull up VI1 S1 1 1 0 0 PT0093(10/02) VO1 VI2 S2 0 1 1 0 Part No. PT8A9961 PT8A9962 PT8A9963 PT8A9964 2 VO2 Application Mini car Small car Middle car Large car Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Configuration PT8A996x 20-Pin DIP 20-Pin SOIC PT8A995 16-Pin DIP 1 2 3 4 5 6 7 8 F2 F1 IRout GND RFout CA1 CA2 SC 16 15 14 13 12 11 10 9 Forward Backward Right Left GND VT2 VT1 VO2 VI2 VO1 PC L/R F/B OSCI OSCO VCC Offset2 Offset1 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 F2 F1 PC SRV OSCI OSCO V CC SI FC VI1 Top View Pin Description Table 1. Pin Description of PT8A995 P in No. P in n a me 1 F2 F2 function control pin 2 F1 F1 function control pin 3 IRout Output code with 38KHz carries 4 GND Ground 5 RFout Output code with 27M or 49MHz carries 6 CA1 27M or 49MHz crystal oscillator input 7 CA2 27M or 49MHz crystal oscillator output 8 SC 9 Offset1 Used for offset adjustment of speed input 10 Offset2 Used for offset adjustment of steering input 11 VCC 12 OSCO Crystal oscillator output 13 OSCI Crystal oscillator input 14 F/B Input for forward & backward speed 15 L/R Input for steering angle left & right 16 PC Power control output PT0093(10/02) Descr ip t ion Output code power 3 Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Table 2. Pin Description of PT8A9961/9962/9963/9964 P in No. P in Na me Descr ip t ion 1 Forward 2 Backward 3 Right Right output 4 Left Left output 5 GND GND 6 VT2 F/B motor current limit protection input 7 VT1 L/R motor current limit protection input 8 VO2 The second stage amplify output 9 VI2 The second stage amplify input 10 VO1 The first stage amplify output 11 VI1 The first stage amplify input 12 FC Futaba connection output 13 SI Encode signal input 14 VCC 15 OSCO Crystal oscillator output 16 OSCI Crystal oscillator input 17 SRV Servo motor feedback input 18 PC Auto power off control 19 F1 Function1 control 20 F2 Function2 control Forward output Backward output Power Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Storage Temperature ........................................................ -25oC to +85oC Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ......................... 0oC to +70oC RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & Vcc Only) .... -0.5 to +7.0V device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +7.0V operation of the device at these or any other condiDC Input Voltage ................................................................ -0.5 to +7.0V 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. PT0093(10/02) 4 Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Recommended Operation Conditions Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s VCC Supply Voltage - 4.0 - 5.5 V VIH Input HIGH Voltage - 0.7VCC - VCC V VIL Input LOW Voltage - 0 - 0.3VCC V FOSC Oscillator Frequency - 400 455 500 kHz TA Operation Temperature - 0 - 70 Test C on d it ion s Min Typ Ma x Un it s O C DC Electrical Characteristics Sym Descr ip t ion P in ICC Supply Current Clock = 455kHz, outputs unloaded - - 3 mA ISTB Standby Current - - - 500 uA -8 - - mA -15 - - mA 8 - - mA - - 60 uA - - 60 uA - - 10 uA - - 1 uA - - -10 uA - - -1 uA Output HIGH Current IOH IOL IIH IIL Function pins Output HIGH Current PC Output LOW Current Function pins Output LOW Current PC Input HIGH Current VT1, VT2 Input HIGH Current SI, OSCI Input HIGH Current Other input pins Input LOW Current SI, OSCI Input LOW Current VIN = VCC-0.5V VOUT = 0.5V VIN = VCC VIN = 0V Other input pins Note: These specifications apply for VCC = 5.0V and 0OC ≤ TA ≤ 70OC, unless otherwise specified. AC Electrical Characteristics Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s fOSC Oscillator Frequency Rf = 200kΩ 400 455 500 kHz ft Frequency Tolerance - - - 1.5 % tR Response Time* fOSC = 455kHz - - 90 ms RI Inverter Input Resistance Apply for VI1 & VI2, Rf = 2.2MΩ 50 - - kΩ RO Inverter Output Resistance Apply for VO1 & VO2 - - 10 kΩ VT Overload Protection - 0.3 0.4 0.5 V Note: These specifications apply for VCC = 5.0V and 0 C ≤ TA ≤ 70 C, unless otherwise specified. * The time from the transmitter’s control to the receiver’s response. O PT0093(10/02) O 5 Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs LA PT0093(10/02) 68p C2 150p CI 33p C4 15n C3 1n CO 33p X2 455K CP 4.7u RB2 1K R2 10 Q1 430p CE RE2 51 RE1 51 Vcc RF 330 PT8A995 Q2 9018 9 10 Offset1 SC 6 C10 20p LOSC 3uH C9 20p F1 X1 27M CS 0.1u 8 7 C A 2 Offset2 11 Vcc 6 RFout OSCO 5 CA1 12 Vcc CF 0.15u 20k RO 13 GND 14 F/B OSCI IRout 4 2 3 15 16 Vcc PC L/R F1 F2 1 F2 5k RB1 1K VRF C11 0.1u L2 1.5mH 3 RV1 Figure 3. Application of PT8A995 with External Modulation RV2 5k Vcc V1 Vout 2 GND 78L05 Vin C1 1 R9 3k L1B LED C14 VRF C6 68p SW 3.3u ANT 7.212V BAT ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Ver:2 PT0093(10/02) A1 T1 1.2u 5.1u L2 C13 27p 7 R1 0~5k 6:10 T1 1 FeedBack 150p 150p C10 C9 R20 2.7k R19 6.8k VCC2 VCC2 SI 9018 VT9 C17 20p T2 2u 20 19 18 17 16 15 14 13 12 11 455k G1 R6 5k R5 5k VCC2 D4 D3 1N60 1N60 C14 0.01u C15 0.01u R21 120 VCC2 82 70 Forward Backward Right Left GND VT2 VT1 VO2 VI2 7 F2 Function Loading F1 Function Loading PT8A9961 T2 2 F2 F1 PC SRV OSCI R23 510 1 L3 2.2u VO1 C18 680p D5 1N60 OSCO Vcc SI FC VI1 D2 1N60 C16 0.01u 1 2 3 4 5 6 7 8 9 10 C20 0.047u VT1 3 5 C19 3-10p 11 C7 330p Back Right Left C 5 0.1u For 180p C22 C1 C21 3.3u 6 T3 R3 2.2k R2 2.2M R 4 0.1u 2.2k 8 PT8A201W G2 27M R22 220 VCC2 C8 4700p SI 7 10 Left For 13 IC2 D6 1N4148 FL1 455k Figure 4. Futaba-S3003 Servo Application Circuit of PT8A9961/9962/9963/9964 R9 2k R7 2k R13 300 R11 300 C3 0.1u VCC2 VT4 8050 VT2 8050 C11 100u C23 47u VT1 VT5 BD237 1.3k R24 VT10 D882 R15 0.2 M2 Motor1 C6 0.1u M1 Motor1 C2 0.1u D1 NJM431 VT7 BD238 VT12 B772 R18 16k R17 10k R16 110 VT11 D882 VT13 B772 VT6 BD237 VT8 BD238 C12 470u C4 0.1u VT1 8050 SW1 Right Back VCC1 R12 300 VCC1 Switch R14 300 VCC1 VT3 8050 L1 22u R10 2k R8 2k B2 3.6v B1 3.6v Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Figure 5. Mechanical Diagram of 20-pin SOIC PT0093(10/02) 8 Ver:2 Data Sheet PT8A995/9961/9962/9963/9964 Digital Proportional Remote Controller with 2 Analog CHs & 2 Digital CHs ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 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. PT0093(10/02) 9 Ver:2