Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features General Description • The PT8A9791 works as the encoder and the The PT8A9791 and PT8A9792 is a pair of CMOS PT8A9792 works as the decoder ICs designed for remote control toy car application. • Full functions of Forward, Backward, Left, Right, They have full functional keys for motion control of and OP1 and OP2 a remote control car, including forward, backward, • 100% and 60% duty cycle pulse output control left, right and 2 additional keys OP1 and OP2. Low for Forward/Backward and Left/Right Voltage CMOS technology is employed for the • 50% duty cycle pulse output control for OP1, OP2 PT8A9791 and PT8A9792. • Wide operation power supply: 3V - 12V The function of OP1,OP2 is depicted in Table 3. Two • SO (Serial Output) pin for external RF transmitter additional control pins FBP and LRP of PT8A9791 (PT8A9791) for pulse effect control are described in Tables 4 and • On-chip oscillator with an external resistor 5. • Few external components needed Ordering Information PT0117(10/02) 1 O r d er in g Nu m b er Pa ck a ge PT8A9791P 14-Pin PDIP PT8A9791W 14-Pin SOP PT8A9792P 16-Pin PDIP PT8A9792W 16-Pin SOP Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram Figure 1. Block Diagram of PT8A9791 OSCI OSCO Oscillator Forward Backward Left Right OP1 OP2 FBP LRP Latch Circuit Timing Generator Encoder SO Logic Control PC VCC Figure 2. Block Diagram of PT8A9792 OSCI OSCO SI Oscillator Amp Timing Generator Counter Counter PLA VI1 VO1 VO2 VI2 Right Left Backward Forward OP1 OP2 VCC Control Logic CON Latch Circuit Package and Pin Assignment PT8A9791 14-Pin PDIP 14-Pin SOP Forward Backward FBP LRP GND OSCI OSCO 1 2 3 4 5 6 7 14 13 12 11 10 9 8 PT8A9792 16-Pin PDIP 16-Pin SOP Forward OP1 OP2 OSCO OSCI SI GND VO2 Left VCC Right OP1 OP2 PC SO 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Backward Right Left CON VCC VI1 VO1 VI2 Top View PT0117(10/02) 2 Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Table 1. Pin Description of PT8A9791 P in No P in Na me Typ e 1 Forward I Forward function input, active high, built-in pull-down resistor 2 Backward I Backward function input, active high, built-in pull-down resistor 3 FBP I Pulse Mode Control input for PT8A9792’s Forward and Backward, active high, built-in pull-down resistor (Details see Table 4) 4 LRP I Pulse Mode Control input for PT8A9792’s Left and Right, active high, built-in pulldown resistor (Details see Table 5) 5 GND GND 6 OSCI I Oscillator input pin 7 OSCO O Oscillator output pin 8 SO O Serial Data Output 9 PC O Power control output pin, active high 10 OP2 I Option 2 Function input, active high, built-in pull-down resistor (See Table 3) 11 OP1 I Option 1 Function input, active high, built-in pull-down resistor (See Table 3) 12 Right I Right function input, active high, built-in pull-down resistor 13 VCC Power 14 Left I PT0117(10/02) Descr ip t ion Ground Power supply Left function input, active high, built-in pull-down resistor 3 Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Table 2. Pin Description of PT8A9792 P in No P in Na me Typ e Descr ip t ion 1 Forward O Forward output, active high or pulse output (Details see Table 4) 2 OP1 O Option 1 Open Drain output, pulse output (Details see Table 3) 3 OP2 O Option 2 Open Drain output, pulse output (Details see Table 3) 4 OSCO O Oscillator output 5 OSCI I Oscillator input 6 SI I Serial Data Input 7 GND GND 8 VO2 O Inverse Amplifier 2 output 9 VI2 I Inverse Amplifier 2 input 10 VO1 O Inverse Amplifier 1 output 11 VI1 I Inverse Amplifier 1 input 12 VCC Power 13 CON I Shunt Regulator Control, enabled when high voltage, disabled when low voltage 14 Left O Turn Left output, active high or pulse output (Details see Table 5) 15 Right O Turn Right output, active high or pulse output (Details see Table 5) 16 Backward O Backward Output, active high or pulse output (Details see Table 4) Ground Power Supply Table 3. OP1 and OP2 Functions I n p u t t o P T 8A9791 O u t p u t fr om P T 8A9792 OP1 OP2 OP1 OP2 High Open Pulse Open Open High Open Pulse High High Pulse Pulse Open Open Open Open Notes: 1. OP1 and OP2 are open drain. 2. Pulse = 125Hz (fOSC / 1024) in 50% duty cycle 3. When OP1 and OP2 are both active, the output pulse is opposite phase. PT0117(10/02) 4 Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Table 4. FBP Functions Table 5. LRP Functions O u t p u t fr om P T 8A9792 I n p u t t o P T 8A9791 O u t p u t fr om P T 8A9792 I n p u t t o P T 8A9791 F BP For wa r d Ba ck wa r d For wa r d Ba ck wa r d LRP R igh t L eft R igh t L eft Open Open Open Low Low Open Open Open Low Low Open High Open High Low Open High Open High Low Open Open High Low High Open Open High Low High High Open Open Low Low High Open Open Low Low High High Open Pulse Low High High Open Pulse Low High Open High Low Pulse High Open High Low Pulse Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Storage Temperature ........................................................ -20oC to +85oC Stresses greater than those listed under MAXIMUM Ambient Temperature with Power Applied ...................... -10oC to +70oC RATINGS may cause permanent damage to the Supply Voltage to Ground Potential (Inputs & VCC Only) ..... -0.5 to +12V device. This is a stress rating only and functional Supply Voltage to Ground Potential (Outputs & D/O Only) . -0.5 to +12V operation of the device at these or any other condiDC Input Voltage ................................................................. -0.5 to +12V 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. Recommended Operation Conditions Table 6. Recommended Operation Conditions Sym Descr ip t ion Min Typ Ma x Un it s VBAT Battery Pack Voltage 2.0 - 9.6 V IVR Shunt Regulator Operating Current 0.5 - 20 mA VIH Input HIGH Voltage 0.7VCC - VCC V VIL Input LOW Voltage 0 - 0.3VCC V fOSC Oscillator Frequency - 128 - kHz TA Operation Temperature -10 - 55 PT0117(10/02) 5 O C Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| DC Electrical Characteristics Table 5. DC Electrical Characteristics of PT8A9791 Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s VR Shunt Regulator Voltage TA = 25OC, IVR = 0.5 - 20mA 2.7 - 3.3 V -1.5 - - mA -2.0 - - mA -0.5 - - mA 0.5 - - mA 1.5 - - mA Output LOW Current OSCO Pin 0.3 - - mA Input HIGH Current - OSCI Pin - - 10 uA - - 35 uA - - ±1 uA - - -10 uA Output HIGH Current - PC Pin IOH Output HIGH Currentl - SO Pin Output HIGH Current OSCO Pin VOH = 2.5V Output LOW Current - PC Pin IOL IIH IIL Output LOW Current - SO Pin Input HIGH Current Forward, Backward, Left, Right, OP1, OP2, FBP and LRP Pins Input LOW Current Forw, Back, Left, Right, FBP, LRP, OP1 and OP2 Pins VOL = 0.5V VIH = VCC VIL = 0V Input LOW Current - OSCI Pin Note: These specifications apply for VCC = 3.0V and TA = 25OC, unless otherwise specified. PT0117(10/02) 6 Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Table 6. DC Electrical Characteristics of PT8A9792 Sym Descr ip t ion Test C on d it ion s Min Typ Ma x Un it s VR Shunt Regulator Voltage TA = 25OC, IVR = 0.5 - 20mA 2.7 - 3.3 V -0.1 - - mA -0.5 - - mA Output HIGH Current Forw, Back, Left and Right Pins -1.5 - - mA Output LOW Current VO1 and VO2 Pins 0.1 - - mA 0.5 - - mA Output LOW Current - OSCO pin 0.3 - - mA Input HIGH Current - SI Pin - - 35 uA - - 10 uA Input HIGH Current - CON Pin - - ±1 uA Input LOW Current - SI Pin - - -35 uA - - -10 uA - - ±1 uA Output HIGH Current VO1 and VO2 Pins IOH IOL IIH IIL Output HIGH Current OSCO Pin Output LOW Current Forw, Back, Left, Right, OP1 and OP2 Pins Input HIGH Current OSCI, VI1 and VI2 Pins Input LOW Current OSCI, VI1 and VI2 Pins VOH = 2.5V VOL = 0.5V VI = VCC VI = 0V Input LOW Current - CON Pin Note: These specifications apply for VCC = 3.0V and TA = 25OC, 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 ( PT8A9791) Oscillator Frequency VCC = 3.0V, TA = 0 - 70OC, Rf = 200kΩ 102 128 154 kHz fOSC ( PT8A9792) Oscillator Frequency VCC = 3.0V, TA = 0 - 70OC, Rf = 200kΩ 102 128 154 kHz PT0117(10/02) 7 Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Figure 5. Typical Application Circuit 1 of PT8A9791 R7 * C7 0.02u D1 K3 K4 K5 K6 A1 9V D2 L2 LED1 22U D2 L1 22U D3 R6 1K C5 R2 Q1 PT8A9791 27M 100P C9 10P C2 47P Q2 C4 R5 R3 7 6 5 4 3 2 C8 9014H 47P 9014H 1 47P C3 8 SO OSCO 9 PC OSCI 10 OP2 GND 11 OP1 LRP 13 12 Right Vcc FBP Left Backward 0.1U Forward 14 CRYSTAL1 C1 L3 56K * 47P R4 100 C6 0.02U 100 D5 D6 D7 R1 200k D8 K1 K2 SW2 SW1 PT0117(10/02) 8 Ver:0 Data Sheet PT8A9791/PT8A9792 Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Figure 6. Typical Application Circuit of PT8A9792 A1 C3 68p C1 10p 430 C5 47p VT1 9014 L1 6.8u D1 1N5817 R12 R3 3.3k L2 V CC1 SW1 B1 6~9v C17 C9 0.1u 0.1u C10 220U C11 47u R2 V CC1 100k R1 C4 3300p C6 4.7u C2 0.047u R17 2.2k VT10 8550 R8 300 C15 0.1u C7 0.1u VT11 R9 300 8550 M1 VT5 8050 VT4 8050 Motor1 VT7 8050 VT6 8050 R6 1k R7 1k Left Forward 1 2 Back 16 Backward OP1 Right 15 Right Left 14 Left 3 OP2 4 OSCO CON 13 R13 5 OSCI V CC 12 200k 6 SI VI1 11 10 R16 C14 1000p Forward 7 GND VO1 8 VO2 VI2 PT8A9792 R15 V CC1 3.0V R14 2.2M C12 470p VT12 BD238 R10 300 C8 0.1u VT13 BD238 R11 300 9 R18 2.2k Right C16 Forward 2.2k 0.1u R4 1k M2 Motor2 VT2 8050 VT8 BD237 2.2M C13 VT3 8050 R5 1k VT9 BD237 Backward 30p PT0117(10/02) 9 Ver:0 Data Sheet PT8A9791/PT8A9792 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. PT0117(10/02) 10 Ver:0