Features. General Description. Ordering Information. Data Sheet PT8A977P/977W/978P/978LW 5-Function Remote Controller

Size: px

Start display at page:

Download "Features. General Description. Ordering Information. Data Sheet PT8A977P/977W/978P/978LW 5-Function Remote Controller"

Griffin Francis
5 years ago
Views:

1 Features PTAP/W works as encoder and PTAP/LW works as decoder Five pins for five control functions Operating power-supply voltage:.v to.0v (P, W, P),.0V to.0v (LW) Auto-power-off if no press on any button in s or continuously press on any button over minues Press on any button as wake up (P, W) Manual-power-off with button One output pin used for external power control (P, W) On-chip oscillator with an external resistor On-chip reversing amplifiers (P, LW) Low operating current Few external components needed Package: -pin DIP, -pin SOIC, -pin DIP and -pin SOIC General Description The PTAP (or W) and PTAP (or LW) provide a complete control functions to the remotecontrolled toy. The PTAP/W has five input pins corresponding with the five function buttons i.e, forward, backward, rightward, leftward and turbo. The encoding circuit in the PTAP/W sends digital codes to the two output pins SO and SC. The digital codes correspond to the definite function buttons or their combinations. The SO and SC outputs are used in wireless and infra-red applications respectively. The PTAP (or LW) has five output pins corresponding with the five actions. The received signals are amplified by the three-stage amplifier, and then the appropriate amplified signals are sampled, fault-tolerantly checked and decoded to control the actions of the remote-controlled toy. Ordering Information P art No. PTAP PTAW PTAP PTALW Packag e -pin DIP -pin SOIC -pin DIP -pin SOIC There is an internal oscillator in the PTAP/W and P/LW respectively. By adding an external resistor conveniently, the oscillator will be constructed. The oscillator frequency can be adjusted by the external resistor. The relative error between the frequencies of the two on-chip oscillators in the PTAP/W and PTAP/LW must be less than ±%. The auto-power-off function is achieved by an internal counter. The output is used to control on/off state of the external power supply. Pressing button can also shut down the power supply. Press on any function button will wake up the chip promptly.

2 Block Diagram Block Diagram of P/W Oscillator Timing Generator Minutes Counter Input Circuit Encoding Circuit Output Circuit SO SC Block Diagram of P/LW SI Oscillator Amp. Timing Generator Signal Sample & Fault-Tolerant Check Latch Decoding Circuit Output Circuit VI Amp. VO VI Amp. VO Control Logic LD RD Pin Configuration PTAP/W -Pin DIP/-Pin SOIC PTAP/LW -Pin DIP/-pin SOIC Test SC V CC SO VO SI RD VI VO VI V CC LD Top View

3 Pin Description Pin Description of P/W Pin No. Pin Name Test SC SO V cc Description With Pull-up resistor, rightward function selected if this pin connected to. With Pull-up resistor, this pin is used for testing mode. Negative power supply With Pull-up resistor, backward function selected if this pin connected to. With Pull-up resistor, forward function selected if this pin connected to. With Pull-up resistor, turbo function selected if this pin connected to. Output pin of the encoding signal with carrier frequency Output pin of the encoding signal without carrier frequency Positive power supply Power control output pin Oscillator output pin Oscillator input pin With Pull-up resistor, this pin is used to shut down the external power supply. With Pull-up resistor, leftward function selected if this pin connected to. Pin Description of P/LW Pin No. VO VI Pin Name VO SI RD LD V cc VI Description Output pin for the amplifier Negative power supply Input pin of the encoding signal Oscillator input pin Oscillator output pin ward output pin ward output pin With Pull-up resistor, rightward function disabled if this pin connected to. With Pull-up resistor, leftward function disabled if this pin connected to. output pin output pin output pin Positive power supply Input pin for the amplifier Output pin for the amplifier Input pin for the amplifier

4 Code Format (W is used for function codes, W for start codes) W W: khz 0% Duty Cycle Typical W W: 00Hz % Duty Cycle Typical Word Format Start Code: W Function Code: n W Word Encoding and Decoding Timing W, W, W, W, (n)xw, W, W, W, W, (n)xw, W, W, W, W, (n)xw, W, W, W, W, (n)xw, Press Any Button on PTAP/W Encoding Output from PTAP/W st word nd word last word Function Codes End Codes Decoding Output from PTAP (or LW) ms ms

5 Encoding Input and Decoding Result Number of Function Codes (n) W 0 Decoding Results End Code (Pulse) (High level) (High level) & (High level) & & & Output Timing of P/W VCC VCC s Note: Pins,,, and are High. s VCC Press Function buttons s s Minutes

6 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Storage Temperature... - o C to + o C Ambient Temperature with Power Applied... - o C to +0 o C Supply Voltage to Ground Potential (Inputs & V CC Only) to +.0V Supply Voltage to Ground Potential (Outputs & D/O Only) -0. to +.0V DC Input Voltage to +.0V DC Output Current... 0mA Power Dissipation... 00mW 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 P/W Parameters Description Test Condition Min. Type Max. Units VCC Operating Voltage..0.0 V ICC Supply Current Output unloaded 0 ua ISTB Stand-by Current State ua VIL Input Low Voltage Guaranteed Logic LOW level 0. V VIH Input High Voltage Guaranteed Logic HIGH level.0 V IIL Input Low Current Pin,,,,, V IL = 0V, ON state -0 ua IIH Input High Current Pin,,,,, V IH = V, ON state ua II Input Current Pin V IH = 0 ~ V, ON state ± ua IOL IOH Output Low Current Output High Current Note: Over the Operating Rating, 0 C T A 0 C, V CC = V VOUT = 0. V 0 ua Pin,, VOUT =. V -.0 ma Pin VOUT =. V ua DC Electrical Charateristics of P/LW Parameters Description Test Condition Min. Type Max. Units VCC Operating Voltage - P..0.0 V Operating Voltage - LW.0.0 V ICC Supply Current Output unloaded ma ISTB Stand-by Current State ua VIL Input Low Voltage Guaranteed Logic LOW level 0. V VIH Input High Voltage Guaranteed Logic HIGH level.0 V IIL Input Low Current Pin,, V IL = 0V, ON state -0 ua IIH IOL IOH Input High Current Pin V IH = V, ON state 0 ua Input High Current Pin, V IH = V, ON state ua II Input Current Pin, V IH = 0 ~ V, ON state ± ua Output Low Current Pin,, VOUT = 0. V 00 0 ua Pin,,,, VOUT = 0. V ma Output High Current Pin,, VOUT =. V ua Pin,,,, VOUT =. V -00 ua Note: Over the Operating Rating, 0 C T A 0 C, V CC = V

7 AC Electrical Characteristics AC Electrical Characteristics of P/W Parameters Description Test Condition Min. Type Max. Units fosc Oscillator Frequency * TA= C, R = 00 kw khz f max -f min tfun tsta fcsc t Oscillator Frequency Fluctuation - P/W TA= C, V CC =. ~ V kh z Cycle Time of Function Code Cycle Time of Start Code Carrier Frequency of SC Pin Time of Auto-Power-Off ** fosc = to khz 0.. ms fosc = to khz.. ms fosc = to khz khz Pins,,, and are High... s Any of pins,,, or is Low... min. Note: Over the Operating Rating, 0 C T A 0 C, V CC = V * The relative error between the frequencies of the two on-chip oscillators in the PTAP (or W) and PTAP (or LW) must be less than ±%. ** When adjust the external oscillator resistor, the auto-power-off time will vary relevantly. AC Electrical Characteristics of P/LW Parameters Description Test Condition Min. Type Max. Units fosc Oscillator Frequency * TA= C, R = 00 kw khz Oscillator Frequency Fluctuation - P TA= C, V CC =. ~ V khz f max -f min Oscillator Frequency Fluctuation - LW TA= C, V CC =.0 ~ V khz VSI SI Pin Receive Sensitivity (VPP) Guaranteed Effective Decoding 00 mv tfun tsta Cycle Time of Function Code Cycle Time of Start Code fosc = khz 0.. ms fosc = khz.. ms Note: Over the Operating Rating, 0 C T A 0 C, V CC = V * The relative error between the frequencies of the two on-chip oscillators in the PTAP (or W) and PTAP (or LW) must be less than ±%.

8 POWER S S R 00K R OM C.0u S S S S C.u V R 0K V.V CR. R 0 L.u R 0 R.K R K C C.0u C C R.K R K V LED R 0 L.u C 0 C.0u R.K L C 0 R M A ANTENNA L.u C 0 B V RIGHTB TESTB BACK FOR TURBOB SC LEFTB VDD SO PTAP V 0 V 0 V 0 V 0 Data Sheet Application Circuits Typical Application of PTAP/W For Transmit Circuit With V Battery SO SC V CC Test

9 Typical Application of PTAP/LW For Receive Circuit With Five Functions V 0 V 00 V 0 V 0 V 00 V 0 VD.V C.0u C.u C 0u C 00 C 0 C C.0u C.u C 000 C V C C A C.u C 0 C.u M M V 0 V 00 V 0 V 0 V 00 V 0 V 0 V 0 C.0u C.0U C.0u V V S L.u L PTAP R K R 0K R.K R.M R.K R.M R.K R 00K R 0 R.K R R R 0 R 0 R 0 R 0 R 0 R 0 R 0 R0 0 R K R K R K R K R K C 0u C.u LD RD V CC VI SI VO VI VO

10 Mechanical Diagram of -pin SOIC

11 Mechanical Diagram of -pin SOIC

12 Notes Pericom Technology Inc. Web Site: China: Asia Pacific: U.S.A.: No. 0 Building, /F, Guiping Road, Shanghai, 00, China Tel: ()-- 0 Fax: ()-- Unit, /F, Chevalier Commercial Centre, Wang Hoi Rd, Kowloon Bay, Hongkong Tel: ()- 0 Fax: ()- 0 Bering Drive, San Jose, California, USA Tel: () Fax: ()-0-0 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.

PT8A977B/978B/978BL 5-Function Remote Controller. Features. Description. Ordering Information

PT8A977B/978B/978BL 5-Function Remote Controller. Features. Description. Ordering Information Features PT8A977B works as encoder and PT8A978B/ 978BL works as decoder Five pins for five control functions Operating power-supply voltage: 2.5V to 5.0V (978B), 2.0V to 5.0V (978BL), 1.8V to 5.0V(977B)