ATA2525P338H-6AQY
ATA2525P338H-6AQY Datasheet
ATA2525
| Part | Datasheet |
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ATA2525P338H-6AQY |
ATA2525P338H-6AQY (pdf) |
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| • No External Components Except PIN Diode • Supply-voltage Range 4.5V to 5.5V • Automatic Sensitivity Adaptation AGC • Automatic Strong Signal Adaptation ATC • Enhanced Immunity Against Ambient Light Disturbances • Available for Carrier Frequencies between 33 kHz to 40 kHz Adjusted by Zener Diode Fusing • TTL and CMOS Compatible • Suitable Minimum Burst Length 10 Pulses/Burst • Audio Video Applications • Home Appliances • Remote Control Equipment IR Receiver ASSP ATA2525 The IC ATA2525 is a complete IR receiver for data communication that was developed and optimized for use in carrier-frequency-modulated transmission applications. Its function can be described using the block diagram see Figure 1-1 on page The input stage meets two main functions. First, it provides a suitable bias voltage for the PIN diode. Secondly, the pulsed photo-current signals are transformed into a voltage by a special circuit which is optimized for low-noise applications. After amplification by a Controlled Gain Amplifier CGA , the signals have to pass a tuned integrated narrow bandpass filter with a center frequency f0 which is equivalent to the chosen carrier frequency of the input signal. The demodulator is used to convert the input burst signal into a digital envelope output pulse and to evaluate the signal information quality, i.e., unwanted pulses will be suppressed at the output pin. All this is done by means of an integrated dynamic feedback circuit which varies the gain as a function of the present environmental condition ambient light, modulated lamps etc. . Other special features are used to adapt to the current application to secure best transmission quality. The ATA2525 operates in a supply-voltage range of 4.5V to 5.5V. Figure Block Diagram IN Input CGA and filter Demodulator Microcontroller Carrier frequency f0 Oscillator Modulated IR signal min 10 pulses Pin Configuration Figure Pinning TSSOP8 AGC/ATC and digital control ATA2525 VS 1 NC 2 OUT 3 NC 4 8 NC 7 NC 6 GND 5 IN Table Pin 1 2 3 4 5 6 7 8 Pin Description Symbol VS NC OUT NC IN GND NC Function Supply voltage Not connected Data output Not connected Input PIN diode Ground Not connected Not connected 2 ATA2525 [Preliminary] ATA2525 [Preliminary] Absolute Maximum Ratings Stresses beyond those listed under “Absolute 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 beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Parameters Value Unit Supply voltage Supply current Input voltage Input DC current at VS = 5V Output voltage Output current Operating temperature Storage temperature Power dissipation at Tamb = 25°C to +6 to VS to VS Tamb to +85 Tstg to +125 Ptot Thermal Resistance Parameter Junction ambient TSSOP8 Ordering Information Extended Type Number Type ATA2525P1.xx 1 -yyy 2 1493 Standard type high data rate ATA2525P3.xx 1 -yyy 2 Lamp type enhanced suppression of disturbances, secure data transmission ATA2525P5.xx 1 -yyy 2 Noise type best suppression of disturbances, low data rate Notes xx means the used carrier frequency value 33, 36, 38 or 40 kHz yyy means kind of packaging DDW --> unsawn wafers in box 6AQ --> only on request, TSSOP8 taped and reeled Maximum data transmission rate up to bits/s with f0 = 40 kHz, VS = 5V see Figure 8-2 on page 5 Pad Layout Figure Pad Layout DDW or TSSOP8 ATA2525 Zapping Versioning Table Pin Description Symbol OUT VS GND IN Zapping Versioning Function Data output Supply voltage GND Input pin diode f0 adjust type adjust 10 ATA2525 [Preliminary] Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel 41 26-426-5555 Fax 41 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel 852 2721-9778 Fax 852 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel 1 408 441-0311 Fax 1 408 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel 33 2-40-18-18-18 Fax 33 2-40-18-19-60 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel 33 4-42-53-60-00 Fax 33 4-42-53-60-01 1150 East Cheyenne Mtn. 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