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Remote Control Encoder IC
PT2264
DESCRIPTION
PT2264 is a remote control encoder paired with PT2294 utilizing CMOS Technology. It encodes data and address pins into a serial coded waveform suitable for RF modulation. PT2264 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 4 Data Pins Wide Range of Operating Voltage: VCC = 8 ~ 15 V Single Resistor Oscillator Latch or Momentary Output Type Available in DIP and SO Package
APPLICATIONS
* * * * Remote Control Fan Home Security/Automation System Remote Control Toys Remote Control for Door Bell
PT2264 v1.0
-1-
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
BLOCK DIAGRAM
A0 A1 A2 A3 A4 A5 A6 A7 A8/D3 A9/D2 A10/D1 A11/D0 Code Generation DOUT Address Control Logic /TE
System Timing
OSC1 OSC OSC2
PIN CONFIGURATION
A0 A1 A2 A3 A4 A5 A6 A7 VSS 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 PT2264 PT2264-18S
PT2264 v1.0 -2-
VCC DOUT OSC2 OSC1 /TE A11/D0 A10/D1 A9/D2 A8/D3
A0 A1 A2 A3 A4 A5 A6 A7 VSS NC
1 2 3 4 5 6 7 8 9 10 PT2264-S
20 19 18 17 16 15 14 13 12 11
VCC DOUT OSC2 OSC1 /TE A11/D0 A10/D1 A9/D2 A8/D3 NC
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
PIN DESCRIPTION
Pin Name I/O Description Code Address Pin Nos.0 ~ 7 These ten tri-state pins are detected by PT2264 to determine the encoded waveform bit 0 ~ bit 9. Each pin can be set to "0", "1" or "f" (floating ). Code Address Pin Nos.8 ~ 11/Data Pin Nos.0 ~ 3. These four tri-state pins are detected by PT2264 to determine the encoded waveform bit10, bit11. 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. PT2264 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 frequency Oscillator Pin No.2 of the PT2264. Data Output Pin. The encoded waveform is serially outputted to this pin. When PT2264 is not transmitting, DOUT outputs low (VSS) voltage. Positive Power Supply Negative Power Supply Pin No. 18 Pins 20 Pins 1~8 1~8
A0~A7
I
A8/D3 ~ A11/D0
I
10 ~ 13
12 ~ 15
/TE OSC 1 OSC 2
I O I
14 15 16
16 17 18
DOUT VCC VSS
O -
17 18 9
19 20 9
PT2264 v1.0
-3-
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
FUNCTIONAL DESCRIPTION
PT2264 encodes the code address and data set at A0 ~ A7 and A8/D3 ~ 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 for transmission. The transmitted radio frequency is received by the RF demodulator receiver and reshaped to the special waveform. PT2294 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:
OSC 1 bit = 32 BIT 0 4 BIT 1 12 BIT f Floating where: = Oscillating Clock Period 4
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 = 4 4 bit width = 128 Note: 1 bit = 32
PT2264 v1.0
-4-
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
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 ~ A7 and A8/D3 ~ A11/D0 pins at the time of transmission. When Data Type of PT2264 is used, the address bits will decrease accordingly. For example: In the 4 Datas Type where the address has eight (8) bits, the transmitting format is:
8 Address Bits
4 Data Bits
Sync. Bit
PT2264 / PT2294 have a maximum of twelve (12) Address Bits, four (4) Address/Data bits. The following diagram shows the code bits with their corresponding pins. First bit transmitted A0 A1 A2 A3 A4 A5 A6 A7 A8/D3 A9/D2 A10/D1 A11/D0 SYNC BIT
One Complete Code Word 0 1 2 3 4 Data Data Data Data Data A0 A0 A0 A0 A0 A1 A1 A1 A1 A1 A2 A2 A2 A2 A2 A3 A3 A3 A3 A3 A4 A4 A4 A4 A4 A5 A5 A5 A5 A5 A6 A6 A6 A6 A6 A7 A7 A7 A7 A7 A8 A8 A8 A8 D3 A9 A9 A9 D2 D2 A10 A10 D1 D1 D1 A11 D0 D0 D0 D0 Sync Bit Sync Bit Sync Bit Sync Bit Sync Bit
The Code Bits A0 ~ A7 and A8/D3 ~ A11/D0 are determined by the states of A0 ~ A7 and A8/D3 ~ 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.
PT2264 v1.0
-5-
June, 2004
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Remote Control Encoder IC
PT2264
CODE FRAME
A Code Frame consists of four (4) continuous Code Words. When PT2264 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, PT2264 outputs another Code Frame. It should be noted that the Code Frame is synthesized at the time of transmission.
/TE one frame (=4 word) DOUT one frame one frame
SIGNAL RESISTOR OSCILLATOR
The built-in oscillator circuitry of PT2264 allows a precision oscillator to be constructed by connecting an external resistor between OSC1 and OSC2 pins. For PT2294 to decode correctly the received waveform, the oscillator frequency of PT2294 must be 2.5 ~ 8 times that of transmitting PT2264. The typical oscillator with various resistor values are shown below for PT2264 and PT2294.
100 R = 510 K R=1M R=2M 10 KHz R = 3.3 M R = 4.7 M
1 3 6 9 12 15
V O LTAG E
PT2264 Encoder OSC Frequency
PT2264 v1.0
-6-
June, 2004
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Remote Control Encoder IC
PT2264
PT2294 DECODER OSC FREQUENCY
180 160 140 120 100 80 60 40 20 0 2 4 6 8 VOLTAGE (V) 10 12 Rosc =510K Rosc=620K
FREQUENCY (KHz)
Rosc=1.0M Rosc=1.2M Rosc=2.2 M
Suggested oscillator resistor values are shown below. PT2264 1.2M 1.5M 3.3M PT2294 120K 160K 390K
PT2264 v1.0
-7-
June, 2004
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Remote Control Encoder IC
PT2264
OPERATION FLOW CHART
Power ON
Stand-by Mode
No /TE Enable Yes 4 Words of Address/Data Transmitted Yes No /TE Still Enable Yes
PT2264 v1.0
-8-
June, 2004
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Remote Control Encoder IC
PT2264
ABSOLUTE MAXIMUM RATINGS
Parameter Supply Voltage Input Voltage Output Voltage Maximum Power Dissipation Operating Temperature Storage Temperature Symbol VCC VI VO Pa Topr Tstg Conditions Ratings -0.3 ~ 16.0 -0.3 ~ VCC+0.3 -0.3 ~ VCC+0.3 300 -40 ~ +85 -65 ~ +150 Unit V V V mW
VCC = 12 V
DC ELECTRICAL CHARACTERISTICS
Parameter Supply Voltage Stand-by Current Symbol VCC ISB Conditions VCC=12V OSC2=12V A0 ~ A11 Open VCC = 8V VOH = 4V VCC = 12V VOH = 6V VCC = 8V VOL = 4V VCC = 12V VOL = 6V Min. 8.0 -6 -10 5 9 Typ. 0.1 Max. 15 1 Unit V A mA mA mA mA
DOUT Output Driving Current
IOH
DOUT Output Sinking Current
IOL
PT2264 v1.0
-9-
June, 2004
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Remote Control Encoder IC
PT2264
APPLICATION CIRCUIT
4 Datas transmitter circuit is recommended. Pin 1~8 Address Datas can be selected by custom's design.
RF
1 2 3 4 5 6 7 8 9
A0 A1 A2 A3 A4 A5 A6 A7 VSS
VCC 18 DOUT 17 OSC2 16 OSC1 15 /TE 14 A11/D0 13 A10/D1 12 A9/D2 11 A8/D3 10
2.7K x4 Rosc IN4148 x 4
PT2264
10K x4 SW3 SW2 SW1 SW0
-
12V
+
Note: Suggested oscillator resistor values (Rosc), please refer to page 7.
PT2264 v1.0
- 10 -
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
Zero Data transmitter circuit is recommended. Pin 1~8, Pin 10~13 Address Datas can be selected by custom's design.
VCC
RF
1 2 3 4 5 6 7 8 9
A0 A1 A2 A3 A4 A5 A6 A7 VSS
VCC 18 DOUT 17 OSC2 16 OSC1 15
SW Rosc
/TE 14 A11/D0 13 A10/D1 12 A9/D2 11 A8/D3 10
PT2264
Note: Suggested oscillator resistor values (Rosc), please refer to page 7. Zero-Stand-by transmitter circuit is recommended. Pin 1~8, Pin 10~13 Address Datas can be selected by custom's design.
RF
SW
1 2 3 4 5 6 7 8 9
A0 A1 A2 A3 A4 A5 A6 A7 VSS
VCC 18 DOUT 17 OSC2 16
/TE 14 A11/D0 13 A10/D1 12 A9/D2 11 A8/D3 10
PT2264
Note: Suggested oscillator resistor values (Rosc), please refer to page 7.
PT2264 v1.0 - 11 June, 2004
-
OSC1 15
+
12V
Rosc
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Remote Control Encoder IC
PT2264
ORDERING INFORMATION
Order Part Number PT2264 PT2264-18S PT2264-S PT2264 (L) PT2264-18S (L) PT2264-S (L) Package Type 18 Pins, DIP Package, 300mil 18 Pins, SOP Package, 300mil 20 Pins, SOP Package, 300mil 18 Pins, DIP Package, 300mil 18 Pins, SOP Package, 300mil 20 Pins, SOP Package, 300mil Top ode PT2264 PT2264-18S PT2264-S PT2264 PT2264-18S PT2264-S
Notes: 1. (L) = Lead Free 2. The Lead Free mark is put in front of the date code.
PT2264 v1.0
- 12 -
June, 2004
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Remote Control Encoder IC
PT2264
PACKAGE INFORMATION
18 PINS DIP PACKAGE, 300MIL
PT2264 v1.0
- 13 -
June, 2004
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Remote Control Encoder IC
Symbol A A1 A2 b b1 b2 b3 c c1 D D1 E E1 e eA eB eC L Min. 0.015 0.115 0.014 0.014 0.045 0.030 0.008 0.008 0.880 0.005 0.300 0.240 Nom. Max. 0.210 0.195 0.022 0.020 0.070 0.045 0.014 0.011 0.920 0.325 0.280
PT2264
0.130 0.018 0.018 0.060 0.039 0.010 0.010 0.900 0.310 0.250 0.100 bsc. 0.300 bsc.
0.000 0.115
0.130
0.430 0.060 0.150
Notes 1. All dimensions are in INCHS. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimensions "A", "A1" and "L" are measured with the 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 loads unconstrained. 7. "N" is the number of terminal positions. (N=18) 8. Pointed or rounded lead tips are preferred to ease insertion. 9. "b2" and "b3" maximum dimensions are not include dambar protrusions. Dambar protrusions shall not exceed 0.010 inch (0.25 mm). 10. Distance between leads including Dambar 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.
PT2264 v1.0
- 14 -
June, 2004
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Remote Control Encoder IC
PT2264
18 PINS SOP PACKAGE, 300MIL
N
INDEX AREA
H E -B-
.25 (.010) M B M
1
2
3 L
-A-
D
SEATING PLANE A -C A1 B .10 (.004)
h X 45
-e-
C
.25 (.010) M C A M B S
Symbol A A1 B C D E e H h L
Min. 2.35 0.10 0.33 0.23 11.35 7.40 10.00 0.25 0.40 0
Nom.
Max. 2.65 0.30 0.51 0.32 11.75 7.60 10.65 0.75 1.27 8
1.27 bsc.
PT2264 v1.0
- 15 -
June, 2004
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Remote Control Encoder IC
PT2264
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.Lis the length of the terminal for soldering to a substrate. 6. N is the number of the terminal positions (N=18) 7. The lead widthBas 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 dimensionMILLIMETER. 9. Refer to JEDEC MS-013, Variation AB. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT2264 v1.0
- 16 -
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
20 PINS, SOP PACKAGE, 300MIL
N
INDEX AREA
H E -B-
.25 (.010) M B M
1
2
3 L
-A-
D
SEATING PLANE A -C A1 B .10 (.004)
h X 45
-e-
C
.25 (.010) M C A M B S
Symbol A A1 B C D E e H h L
Min. 2.35 0.10 0.33 0.23 12.60 7.40 10.00 0.25 0.40 0
Nom.
Max. 2.65 0.30 0.51 0.32 13.00 7.60 10.65 0.75 1.27 8
1.27 bsc.
PT2264 v1.0
- 17 -
June, 2004
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
Remote Control Encoder IC
PT2264
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.Lis the length of the terminal for soldering to a substrate. 6. N is the number of the terminal positions (N=20) 7. The lead widthBas 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 dimensionMILLIMETER. 9. Refer to JEDEC MS-013, Variation AC. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT2264 v1.0
- 18 -
June, 2004

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