Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features LSIs designed to provide a complete control functions to remote-controlled toy. The PT8A971AP has five • The PT8A971AP works as the encoder and the input pins corresponding with the five function PT8A972AP works as the decoder buttons - forward, backward, right, left and turbo. The • Five pins for five control functions encoding circuit in the PT8A971AP sends digital • Operating power supply voltage: 2.5 to 5.0V codes to the two output pins SO and SC. The digital • Auto-power-off if no press on any button in 8s or codes correspond to the definite function buttons and continuously press on any button over 4 minutes their combinations. The SO and SC outputs are used (971AP) in wireless and infrared applications respectively. • Press on any button to wake up There is an internal oscillator in the PT8A971AP and • Manual-power-off with OFF button (971AP) PT8A972AP respectively. The oscillator frequency • One output pin used for external power control can be adjusted by the external resistor. The relative • On-chip oscillator with an external resistor error between the frequencies of the two on-chip • Low operating current oscillators in the PT8A971AP and PT8A972AP must • Few external components needed be less than ±25%. • Package: 14-pin DIP (971AP) and 16-pin DIP The auto-power-off function is achieved by internal (972AP) counters. Pressing OFF button can also shut down the power supply. Press on any function button will General Description wake up the chip promptly. The PT8A971AP and PT8A972AP is a pair of CMOS Block Diagram Block Diagram of PT8A971AP OFF OSCI Oscillator Timing Generator 4 Minutes Counter Input Circuit Encoding Circuit Output Circuit OSCO PC Right Left Turbo Forward SO SC Backward PT0066(28/08/01) 1 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Block Diagram of PT8A972AP ON/OFF OSCI Timing Generator Oscillator OSCO SI Sig. Sample & Fault-Tolerant Check Amp. VI1 Amp. VI2 Amp. Power Control 5 Minutes Counter PC Decoding Circuit Right Left VO1 Output Circuit Turbo Forward Latch Backward VO2 Pin Configuration PT8A972AP 16-Pin PDIP PT8A971AP 14-Pin PDIP OFF Backward GND Forward NC Turbo SC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VI2 VO2 SI OSCI OSCO PC ON/OFF Right Right Left OSCI OSCO PC VCC SO 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND VO1 VI1 VCC Turbo Forward Backward Left Top View Top View PT0066(28/08/01) 2 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Pin Description Pin Description of PT8A971AP Pin Na me Type De s cr ipt ion 1 O FF I Cuts off external power supply to the PT8A971A when Low. 2 Backward I Backward function selected if this pin connected to GND, with pull- up resistor. 3 GND GND 4 Forward I 5 NC 6 Turbo I Turbo function selected if this pin connected to GND, with pull- up resistor. 7 SC O Output pin of the encoding signal with carrier frequency 8 SO O Output pin of the encoding signal without carrier frequency 9 VCC P Power supply 10 PC O Power control output pin 11 O SC O O Oscillator output pin 12 O SC I I Oscillator input pin 13 Left I Leftward function selected if this pin connected to GND, with pull- up resistor. 14 Right I Rightward function selected if this pin connected to GND, with pull- up resistor. Ground Forward function selected if this pin connected to GND, with pull- up resistor. No Connection Pin Description of PT8A972AP Pin No Pin Na me Type 1, 14 VI2, VI1 I Input pins of amplifiers 1 and 2 2, 15 VO2, VO1 O Output pins of amplifiers 1 and 2 3 SI I Input pin for encoded signal 4 O SC I I Oscillator input pin 5 O SC O O Oscillator output pin 6 PC O Power Control output pin 7 ON/OFF I On/Off pin 8 Right O Right output pin 9 Left O Left output pin 10 Backward O Backward output pin 11 Forward O Forward output pin 12 Turbo O Turbo output pin 13 VCC P Power supply 16 GND GND PT0066(28/08/01) De s cr ipt ion Ground 3 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Code Format (W1 is for function codes and W2 for start codes) W1 W1: 1kHz 50% Duty Cycle (Typical) W2 W2: 500Hz 75% Duty Cycle (Typical) Word Format Start Code: 4 x W2 Function Code: n x W1 1 Word Encoding and Decoding Timing Encoding String: W2, W2, W2, W2, (n)xW1, W2, W2, W2, W2, (n)xW1, W2, W2, W2, W2, (n)xW1, ... ... Press Any Button on PT8A971AP Encoding Output from PT8A971AP 1 1st word 2nd word 2 3 14 15 last word Function Codes End Codes Decoding Output from PT8A972AP 9ms PT0066(28/08/01) 9ms 4 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Encoding Input and Decoding Result Decoding Results Number of Function Codes (n) W1 4±1 End Code 10 ± 1 Forward (Pulse) 16 ± 1 Forward (High level) 22 ± 1 Turbo 28 ± 1 Forward (High level) & Left 34 ± 1 40 ± 1 Forward (High level) & Right 46 ± 1 Backward & Right 52 ± 1 Backward & Left 58 ± 1 Left Right Backward 64 ± 1 PC Output Timing PC Timing of PT8A971AP VCC VCC OFF OFF PC PC 8s £ 8s Note: Pins 2, 4, 6, 13 and 14 are High. VCC Pins 2, 4, 6, 13, 14 PC 8s 8s 4 min PC Timing of PT8A972AP VCC ON/OFF SI PC 5 minutes PT0066(28/08/01) 5 minutes 5 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 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 ...................... -10oC to +40oC 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 Characteristics DC Electrical Characteristics of PT8A971AP Description Sym V CC Operating Voltage I CC ISTB Supply Current VIH VIL Input High Voltage Input Low Voltage IIH Input High Current IIL Input Low Current Test Condition - Output High Current IOL Output Low Current Type Max Units 2.5 4.0 5.0 V 300 10 uA uA Output Unloaded - Stand-by Current IOH Min Guaranteed Logic High Level 3.5 V Guaranteed Logic Low Level VIN = VCC 0.5 10 VIN = GND -60 Pins 7, 8, 10 VOUT = 3.5V -1 Pin 11 VOUT = 3.5V -0.2 Pins 7, 8, 10 VOUT = 0.5V 0.5 Pin 11 VOUT = 0.5V 0.2 V uA uA mA -1 mA mA 1 mA Note: Over the Operating Rating, 0°C £ TA £ 70°C, VCC = 4V DC Electrical Characteristics of PT8A972AP Description Sym V CC Operating Voltage I CC ISTB Supply Current VIH Input High Voltage Input Low Voltage VIL IIH IIL - Input Low Current IOH Output High Current IOL Output Low Current Min Type Max Units 2.5 4.0 5.0 V * In OFF state Stand-by Current Input High Current Test Condition Guaranteed Logic High Level Pin 3 1.5 30 3.5 Guaranteed Logic Low Level VIN = VCC Pins 1, 4, 7, 14 VIN = VCC Pin 7 VIN = GND -10 mA uA V 0.5 20 V uA 10 uA -60 uA Pin 3 VIN = GND -20 uA Pins 1, 4, 14 VIN = GND -10 uA Pins 6, 8, 9, 10, 11, 12 VOUT = 3.5V VOUT = 3.5V Pins 2, 5, 15 -4 Pins 6, 8, 9, 10, 11, 12 VOUT = 0.5V 0.5 VOUT = 0.5V 0.2 Pins 2, 5, 15 -0.2 mA -1 mA mA 0.5 mA Note: Over the Operating Rating, 0°C £ TA £ 70°C, VCC = 4V * Output unloaded; 2.2MW feedback resistors for two reversing amplifiers; 200kW external resistor for on-chip oscillator. PT0066(28/08/01) 6 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| AC Electrical Characteristics AC Electrical Characteristics of PT8A971AP Sym Description Test Condition fOSC Oscillator Frequency * TA= 25°C, R = 200 kW Min Type Max 102 128 154 Units kHz tFUN Cycle Time of Function Code fOSC = 102 to 154 kHz 0.8 1 1.2 ms tSTA Cycle Time of Start Code 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 tOFF Time of Auto-Power-Off ** Pins 2, 4, 6, 13 and 14 are High. 6.4 8 9.6 s Any of pins 2, 4, 6, 13 and 14 is Low. 3.2 4 4.8 min Note: Over the Operating Rating, 0°C £ TA £ 70°C, VCC = 4V * The relative frequency error between two on-chip oscillators of the PT8A971AP and PT8A972AP must be less than ±25%. ** Adjusting the external oscillator resistor will cause the auto-power-off time change. AC Electrical Characteristics of PT8A972AP fOSC Sym Oscillator Frequency * Test Condition TA= 25°C, R = 200 kW VSI SI Pin VPP Receive Sensitivity Guaranteed effective decoding tFUN Cycle Time of Function Code Cycle Time of Start Code fOSC = 128 kHz to 154kHz 0.75 1 1.25 ms tSTA tOFF Time of Auto-Power-Off ** fOSC = 128 kHz to 154kHz fOSC = 102 to 154 kHz 1.5 4 2 5 2.5 6 ms min. Decode time for function code fOSC = 128 kHz 45 Decode time for end code fOSC = 128 kHz to 154kHz tDEC Description Min 102 Type 128 Max 154 300 7 Units kHz mV 9 153 ms 11 ms Note: Over the Operating Rating, 0°C £ TA £ 70°C, VCC = 4V * The relative frequency error between two on-chip oscillators of the PT8A971AP and PT8A972AP must be less than ±25%. ** Adjusting the external oscillator resistor will cause the auto-power-off time change. PT0066(28/08/01) 7 Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Application Circuit C2 150 C1 100 6.8u L4 10 R7 200k 11 S6 S5 12 PT0066(28/08/01) 13 14 R5 33K C7 68 C3 47 R6 100 2.2u VCC Turbo PC NC Forward OSCO OSCI Left GND Backward Right OFF 8 V2 9014 7 6 S4 SC 5 4 S3 R12 1OM 1M 9 PT8A971AP SO 3 2 1 S2 C12 .01u 8 S1 C11 4.7u V7 4148 R3 220K V4 4.7V CR1 27.145M R9 330 L1 R4 6.8K R10 1K C8 .02u C9 68 R2 4.7K V1 9014 V3 LED R1 100 L2 2.2u V6 9013 C4 150 C6 .02u L3 R8 3.9K V5 8550 R11 10M 1M A1 ANTENNA B1 9V Typical Application of PT8A971AP for Transmit Circuit With 9V Battery Ver:0 Data Sheet PT8A971AP/972AP 5-Function Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Typical Application of PT8A972AP C15 .01u C13 4.7u R28 1M C14 .01u R12 510 V17 8550 A1 C2 47 C1 4 R10 4.3K C6 18 C12 100u V1 C1815 L1 2.2u C3 3000 VD2 4148 R2 180K R1 1K R11 10 V5 8550 9V V8 9013 R16 100 C5 .02u C4 4.7u 12V V9 8550 R20 100 L2 C19 .1u C18 100u VD1 4.7V V4 8550 V2 9013 R3 2.2K C7 .1u R4 2.2M R23 1K C16 .02u M1 R27 3.9K V7 9013 V3 8050 R15 330 R24 1K R17 100 V6 8050 R18 330 R25 1K V16 9013 10 ON/OFF O N / O F FBBackward ack w ard Right R ig h t 7 8 R22 1K P T8 A 9 7 2 A P LLeft eft 9 11 FForward o rw ard PC PC 6 OSCO O SCO Turbo Tu rb o 12 13 VDVDCC O SCI OSCI 15 14 VI1 VI1 SI SI VI2 VI2 R5 VO 1 VO1 C9 .1u VO 2 VO2 GGND ND R5 2.2k 16 C8 470 R13 220 PT0066(28/08/01) 5 4 3 2 1 R7 2.2K R9 330 R26 1K C11 1000 V14 8550 V12 8050 R14 220 V10 9013 V11 9013 R21 1K R6 2.2M C17 .02u M2 2.2K C10 30 V13 8550 V15 8050 R19 330 R8 200k 9 Ver:0 Data Sheet PT8A971AP/972AP 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. PT0066(28/08/01) 10 Ver:0