Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 DESCRIPTION PT2262 is a remote control encoder paired with PT2272 utilizing CMOS Technology. It encodes data and address pins into a serial coded waveform suitable for RF or IR modulation. PT2262 has a maximum of 12 bits of tri-state address pins providing up to 531,441 (or 312) address codes; thereby, drastically reducing any code collision and unauthorized code scanning possibilities. FEATURES • • • • • • • • • CMOS Technology Low Power Consumption Very High Noise Immunity Up to 12 Tri-State Code Address Pins Up to 6 Data Pins Wide Range of Operating Voltage: Vcc = 4 ~ 15V Single Resistor Oscillator Latch or Momentary Output Type Available in DIP and SOP APPLICATIONS • • • • • • Car Security System Garage Door Controller Remote Control Fan Home Security/Automation System Remote Control Toys Remote Control for Industrial Use PT2262 V3.8 -1- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 BLOCK DIAGRAM OSC1 System Timing A0 A1 A2 A3 OSC OSC2 A4 A5 A6/D5 A7/D4 A8/D3 A9/D2 A10/D1 A11/D0 Address /TE C ontrol Logic Code Generation DOUT PIN CONFIGURATION A0 1 A1 A2 A3 2 3 A4 5 6 A5 A6/D5 A7/D4 VS S VC C A0 1 DOUT OSC2 OSC1 A1 A2 A3 2 3 14 13 12 /TE A4 5 6 8 11 9 10 A9/D2 A8/D3 4 7 18 17 16 15 A11/D0 A10/D1 PT 2262 P T2262-IR P T2262-S18 PT2262 V3.8 A5 A6/D5 A7/D4 VS S NC 20 19 18 17 4 VC C DOUT OSC2 OSC1 /TE 7 16 15 14 8 9 13 12 10 11 A9/D2 A8/D3 NC A11/D0 A10/D1 PT 2262S PT 2262-IRS -2- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 PIN DESCRIPTION Pin Name I/O A0 ~ A5 I A6/D5, A7/D4 A8/D3 ~ A11/D0 I /TE I OSC1 O OSC2 I DOUT O Vcc Vss - PT2262 V3.8 Description Code Address Pin Nos.0 ~ 5 These six tri-state pins are detected by PT2262 to determine the encoded waveform bit 0 ~ bit 5. Each pin can be set to “0”, “1” or “f” (floating). Code Address Pin Nos.6 ~ 11/Data Pin Nos.5 ~ 0. These six tri-state pins are detected by PT2262 to determine the encoded waveform bit 6 ~ bit 11. When these pins are used as address pins, they can be set to “0”, “1”, or “f” (floating). When these pins are used as data pins, they can be set only to “0” or “1”. Transmission Enable. Active Low Signal. PT2262 outputs the encoded waveform to DOUT when this pin is pulled to low. A resistor connected Oscillator Pin No.1 between these two pins determine the fundamental Oscillator Pin No.2 frequency of the PT2262. Data Output Pin. The encoded waveform is serially outputted to this pin. When PT2262 is not transmitting, DOUT outputs low (Vss) voltage. Positive Power Supply Negative Power Supply -3- Pin No. 18 Pins 20 Pins 1~6 1~6 7, 8 10 ~ 13 7, 8 12 ~ 15 14 16 15 17 16 18 17 19 18 9 20 9 September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 FUNCTIONAL DESCRIPTION PT2262 encodes the code address and data set at A0 ~ A5 and A6/D5 ~ A11/D0 into a special waveform and outputs it to the DOUT when TE is pulled to “0” (Low State). This waveform is fed to either the RF modulator or the IR transmitter for transmission. The transmitted radio frequency or infrared ray is received by the RF demodulator or IR receiver and reshaped to the special waveform. PT2272 is then used to decode the waveform and set the corresponding output pin(s). Thus completing a remote control encoding and decoding function. RF OPERATION CODE BITS A Code Bit is the basic component of the encoded waveform, and can be classified as either an AD (Address/Data) Bit or a SYNC (Synchronous) Bit. Address/Data (AD) Bit Waveform An AD Bit can be designated as Bit “0”, “1” or “f” if it is in low, high or floating state respectively. One bit waveform consists of 2 pulse cycles. Each pulse cycle has 16 oscillating time periods. For further details, please refer to the diagram below: α O SC 1 b it = 3 2 α B it " 0 " 4α B it " 1 " 12α 4α B it " f" Flo a t ing w h e re : α = O s c illa t in g C loc k P e rio d PT2262 V3.8 -4- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 Synchronous (Sync.) Bit Waveform The Synchronous Bit Waveform is 4 bits long with 1/8 bit width pulse. Please refer to the diagram below: 1/8 bit width = 4α 4 bits width = 128α Note: 1 bit = 32α CODE WORD A group of Code Bits is called a Code Word. A Code Word consists of 12 AD bits followed by one Sync Bit. The 12 AD bits are determined by the corresponding states of A0 ~ A5 and A6/D5 ~ A11/D0 pins at the time of transmission. When Data Type of PT2262 is used, the address bits will decrease accordingly. For example: In the 3 Data Type where the address has nine (9) bits, the transmitting format is: 9 Address Bits 3 Data Bits Sync. bit PT2262 / PT2272 has a maximum of twelve (12) Address Bits including the six (6) Address/Data bits. The following diagram shows the code bits with their corresponding pins. A0 A1 A2 A3 A4 A5 A6/D5 A7/D4 A8/D3 A9/D2 A10/D1 A11/A0 SYNC. BIT One Complete Code Word 0 Data: 1 Data: 2 Data 3 Data 4 Data 5 Data 6 Data A0 A0 A0 A0 A0 A0 A0 A1 A1 A1 A1 A1 A1 A1 A2 A2 A2 A2 A2 A2 A2 A3 A3 A3 A3 A3 A3 A3 A4 A4 A4 A4 A4 A4 A4 A5 A5 A5 A5 A5 A5 A5 A6 A6 A6 A6 A6 A6 D5 A7 A7 A7 A7 A7 D4 D4 A8 A8 A8 A8 D3 D3 D3 A9 A9 A9 D2 D2 D2 D2 A10 A10 D1 D1 D1 D1 D1 A11 D0 D0 D0 D0 D0 D0 Sync Bit Sync Bit Sync.Bit Sync.Bit Sync.Bit Sync.Bit Sync.Bit The Code Bits A0 ~ A5 and A6/D5 ~ A11/D0 are determined by the states of A0 ~ A5 and A6/D5 ~ A11/D0 pins. For example, when the A0 (Pin No. 1) is set to “1” (Vcc), the Code Bit A0 is synthesized as “1” bit. In the same manner, when it (A0 Pin) is set to “0” (Vss) or left floating, the Code Bit A0 is synthesized as a “0” or “f” bit respectively. PT2262 V3.8 -5- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 CODE FRAME A Code Frame consists of four (4) continuous Code Words. When PT2262 detects “0” on the /TE (meaning, the /TE is active “low”), it outputs a Code Frame at DOUT. If /TE is still active at the time the Code Frame transmission ends, T2262 outputs another Code Frame. It should be noted that the Code Frame is synthesized at the time of transmission. / TE o n e f r a me ( = 4 w o r d) o n e f r a me o n e f r a me DOUT SIGNAL RESISTOR OSCILLATOR The built–in oscillator circuitry of PT2262 allows a precision oscillator to be constructed by connecting an external resistor between OSC1 and OSC2 pins. For PT2272 to decode correctly the received waveform, the oscillator frequency of PT2272 must be 2.5 ~ 8 times that of transmitting PT2262. The typical oscillator frequency with various resistor values for both PT2262 and PT2272 are shown below: Encoder OSC Frequency Decoder OSC Frequency 100 1000 R = 510 K R=1M R = 100 K R=2M R = 3.3 M R = 4.7 M 10 (KHz) R = 240 K (KHz) 100 R = 510 K R=1M 10 R=2M 1 3 6 9 12 15 3 Voltage(V) 6 9 Voltage(V) 12 15 Suggested oscillator resistor values are shown below. PT2262 4.7 M 3.3 M 1.2 M PT2272 820 K* 680 K* 200 K** Note: * -- Operates when PT2272's Vcc=5V to 15V ** -- Operates when PT2272's Vcc=3V to 15V This means that if PT2272 supply voltage is lower than 5V, you need to use a lower oscillator resistor value for both PT2262 and PT2272. PT2262 V3.8 -6- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 IR OPERATION In the IR Type of Operation, the functions are similar to the above descriptions except for the output waveform that has a carrier frequency of 38KHz. Details are as follows: CODE BITS The Code Bits are further modulated with a 38KHz carrier frequency and can be “0”, “1” or “f” bit. Their waveforms are shown in the diagram below. OSC 0 1 160λ 20λ 60λ f Sync 20λ 620λ Note : λ = 2 clock lengths CODE WORD A Code Word is made up of code bits and the format is the same as that of the RF Code Word. CODE FRAME Likewise, a Code Frame is made up of Code Words and the format is the same as that of RF Type of Operation. OSCILLATOR The Oscillator Frequency for the IR Type of Operation is twice the carrier frequency. Thus, the oscillator frequency should be kept at 76 KHz. A 430K ~ 560KΩ oscillator resistor between OSC 1 and OSC 2 pins is recommended. It should be noted that the carrier is a 50% duty cycle frequency. PT2262 V3.8 -7- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 OPERATION FLOW CHART Power On Stand-by Mode No /TE Enable Yes Yes 4 Words of Address/Data Transmitted Yes No /TE Still Enable Yes PT2262 V3.8 -8- September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 ABSOLUTE MAXIMUM RATING Parameter Supply Voltage Input Voltage Output Voltage Maximum Power Dissipation Operating Temperature Storage Temperature Symbol Vcc VI VO Pa Topr Tstg Condition Vcc = 12V Rating -0.3 ~ 16.0 -0.3 ~ Vcc+0.3 -0.3 ~ Vcc+0.3 300 -40 ~ +85 -65 ~ 150 Unit V V V mW ℃ ℃ DC ELECTRICAL CHARACTERISTICS Parameter Supply Voltage Stand-by Current DOUT Output Driving Current DOUT Output Sinking Current PT2262 V3.8 Symbol Vcc ISB IOH IOL Test Condition Vcc = 12V OSC2 = 12V A0 ~ A11 Open Vcc = 5V VOH = 3V Vcc = 8V VOH = 4V Vcc = 12V VOH = 6V Vcc = 5V, VOL=3V Vcc = 8V VOL = 4V Vcc = 12V VOL = 6V -9- Min. 4 Typ. Max. 15 Unit V 0.1 1 µA -3 mA -6 mA -10 mA 2 mA 5 mA 9 mA September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 APPLICATION CIRCUIT UHF BAND 4 DATA TRANSMITTER CIRCUIT IS RECOMMENDED PT2262 V3.8 - 10 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 UHF BAND ADDRESS-ONLY (ZERO DATA) TRANSMITTER CIRCUIT IS RECOMMENDED PT2262 V3.8 - 11 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 UHF BAND ADDRESS-ONLY (ZERO DATA) ZERO-STAND-BY TRANSMITTER CIRCUIT IS RECOMMENDED. PT2262 V3.8 - 12 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 INFRARED RAY 6-DATA CIRCUIT. ADJUST ROSC TO GET 38KHZ CARRIER PULSE AT DOUT PIN IS RECOMMENDED. PT2262 V3.8 - 13 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 ORDERING INFORMATION Valid Part Number PT2262-D PT2262-IR PT2262-S18 PT2262S PT2262-IRS PT2262 V3.8 Package Type 18 Pins, DIP, 300mil 18 Pins, DIP, 300mil 18 Pins, SOP, 300mil 20 Pins, SOP, 300mil 20 Pins, SOP, 300mil - 14 - Top ode PT2262-D PT2262-IR PT2262-S18 PT2262-S PT2262-IRS September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 PACKAGE INFORMATION 18 PINS, DIP, 300MIL PT2262 V3.8 - 15 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder Symbol A A1 A2 b b2 b3 c c1 D D1 E E1 e eA eB eC L PT2262 Min. 0.150 0.115 0.014 0.045 0.03 0.008 0.008 0.880 0.005 0.300 0.240 0.000 0.115 Nom. 0.130 0.018 0.060 0.039 0.010 0.010 0.900 0.310 0.250 0.100 BAS. 0.300 BAS. 0.130 Max. 0.210 0.195 0.022 0.070 0.045 0.014 0.011 0.920 0.325 0.280 0.430 0.600 0.150 Notes: 1. All dimensioning are in INCHES. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension“A”,“A1”and “L” are measured with package seated in JEDEC Seating Plane Gauge GS-3. 4. “D”, “D1” and “E1” dimensions do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.010 inch. 5. “E” and “eA” measured with the leads constrained to be perpendicular to datum-c- . 6. “eB” and “eC” are measured at the lead tips with the leads unconstrained. 7. “N” is the number of terminal position (N=18). 8. Pointed or rounded lead tips are preferred to ease insertion. 9. “b2” and “b3” maximum dimensions are not include dambar protrusions. Damber protrusions shall not exceed 0.010 inch (0.25mm) 10. Distance between leads including Damber protrusions to be 0.005 inch minimum. 11. Datum plane -H- coincident with the bottom of lead, where lead exits body. 12. Refer to JEDEC MS-001, Variation AC JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION. PT2262 V3.8 - 16 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 18 PINS, SOP, 300MIL Symbol A A1 B C D E e H h L ∞ PT2262 V3.8 Min. 2.35 0.10 0.33 0.23 11.35 7.40 10.00 0.25 0.40 0° - 17 - Nom. 1.27 BAS. - Max. 2.65 0.30 0.51 0.32 11.75 7.60 10.65 0.75 1.27 8° September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 Notes: 1. Dimensioning and tolerancing per ANSI Y14.5-1982. 2. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold Flash. protrusion or gate burrs shall not exceed 0.15mm (0.006 in) per side. 3. Dimension “E” does not include interlead flash or protrusions. Interlead flash or protrusions shall not exceed 0.25mm (0.010 in) per side. 4. The chamfer on the body is optional. It is not present, a visual index feature must be located within the crosshatched area. 5. “L” is the length of the terminal for soldering to substrate. 6. “N” is the number of terminal positions. (N=18) 7. The lead width “B” as measured 0.36mm (0.014 in) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.24 in) 8. Controlling dimension: MILLIMETER. 9. Refer to JEDEC MS-013 Variation AB. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION. PT2262 V3.8 - 18 - September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 20 PINS, SOP, 300 MIL Symbol A A1 B C D E e H h L α PT2262 V3.8 Min. 2.35 0.10 0.33 0.23 12.60 7.40 10.00 0.25 0.40 0° Nom. 1.27 BSC. - - 19 - Max. 2.65 0.30 0.51 0.32 13.00 7.60 10.65 0.75 1.27 8° September, 2008 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder PT2262 Notes: 1. Dimensioning and tolerancing per ANSI Y14.5M-1982. 2. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold Flash, protrusion or gate burrs shall not exceed 0.15 mm (0.006 in) per side. 3. Dimension “E” does not include interlead flash or protrusions. Interlead flash or protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. The chamfer on the body is optional. It is not present, a visual index feature must be located within the crosshatched area. 5. “L” is the length of the terminal for soldering to a substrate. 6. N is the number of the terminal positions (N=20) 7. The lead width “B” as measured 0.36 mm (0.014 in) or greater above the seating plane, shall not exceed a maximum value of 0.61 mm (0.24 in). 8. Controlling dimension: MILLIMETER. 9. Refer to JEDEC MS-013, Variation AC. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION. PT2262 V3.8 - 20 - September, 2008