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| TDA2320 PREAMPLIFIER FOR INFRARED REMOTE CONTROL SYSTEMS DESCRIPTION The TDA2320is a monolithic integratedcircuit in Dip package especially designedto amplify the IR signal in remote controlled TV or radio sets. It directly interfaces the digital control circuitry. The TDA2320 incorporates a two-stage amplifier with excellent sensitivity and high noise immunity. It can work with a single 5V supply voltage and flash or carrier transmission modes as provided for example by the M709A/M710A/MOS transmitters. The TDA2320 is particularly intended to be used in conjunction with the M104 and M206 + M3870 remote control receivers. PIN CONNECTIONS (top view) N DIP8 (Plastic Package) ORDER CODES Part Number TDA2320 Temperature Range -40 C, +105 C o o Package N * Output 1 1 Inverting Input 1 2 Non-inve rting Input 1 3 GND 4 + + 8 7 6 5 VCC Output 2 Inve rting Input 2 Non-inverting Input 2 October 1997 1/5 TDA2320 SCHEMATIC DIAGRAM (1/2 TDA2320) Inverting Input Non-inverting Input VCC R1 R3 R5 R6 Q3 D3 Q6 Q8 Q11 Q13 R7 Q14 Q9 D5 Output Q4 R8 Q2 D1 Q17 Q1 D2 C1 R2 R4 GND D4 Q10 Q5 Q7 C2 Q16 Q15 Q12 ABSOLUTE MAXIMUM RATINGS Symbol VCC Ptot Tstg, Tj Supply Voltage Total Power Dissipation at Tamb = 70 C Storage and Junction Temperature o Parameter Value 20 400 -40 to 150 Unit V mW o C 2/5 TDA2320 ELECTRICAL CHARACTERISTICS VCC = 5V, Tamb = 25oC (unless otherwise specified) (refer to the test circuits) Symbol VCC ICC Iib Vio Iio Avd VOPP GBP SR en SVR Parameter Supply Voltage Supply Current VCC = 20V Input Bias Current Input Offset Voltage Rs < 10k Input Offset Current Large Signal Voltage Gain f = 1kHz f = 100kHz DC Output Voltage Swing Gain-bandwidth Product f = 100kHz Slew Rate RL = 2k Equivalent Input Noise Voltage f = 40kHz Rs = 10k Supply Voltage Rejection Ratio f = 100Hz Min. 4 Typ. Max. 20 2 500 Unit V mA nA mV nA dB 0.8 100 0.5 15 64 70 30 2.5 3 V MHz V/s 1.5 1.5 20 80 Hz dB nV APPLICATION CIRCUIT FLASH MODE PREAMPLIFIER R5 1k C1 10F R1 1M 1N4148 Q1 BC109 C3 22nF R3 100k 5 C2 22nF BPW41 D1 R4 3.3k R7 12k 3 D2 R6 47k 1/2 TDA2320 R10 100k C4 R8 47nF 3.3k 7 2 8 1/2 TDA2320 4 +5V R9 2.7k 1 C5 0.1F +5V 6 R2 39k 3/5 TDA2320 APPLICATION INFORMATION Figure 1 : Application Circuit for Carrier Transmission Mode 1k +5V 10F 2.2k 1N4148 5 100k 1N4148 100nF 1N4148 6 1/2 TDA2320 4 2 15k 15k 8 7 3 1/2 TDA2320 1 10k M206 BPW41 220 2x1N4148 22nF 220 22nF Figure 2 : IR Transmitter Using M709 or M710 Figure 3 : MMC II - PLL TV Frequency Synthetizer TDA2320 33 +9V 445 to 510kHz 2xLD271 BC377 1.5k BD237 M3870 2x1N4148 MODE L201 TELETEXT 68 4MHz cK 3 6 ANALOGUE OUTPUTS BAND 220F 16V LOCAL KEYBOARD INT DATA BUS DIGITAL FILTER 4MHz M709 or M710 KEYBOARD ADDRESS ON/OFF 4/5 TDA2320 PACKAGE MECHANICAL DATA 8 PINS -PLASTIC DIP Dimensions A a1 B b b1 D E e e3 e4 F i L Z Min. 0.51 1.15 0.356 0.204 7.95 Millimeters Typ. 3.32 Max. Min. 0.020 0.045 0.014 0.008 0.313 Inches Typ. 0.131 Max. 1.65 0.55 0.304 10.92 9.75 2.54 7.62 7.62 6.6 5.08 3.81 1.52 0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0260 0.200 0.150 0.060 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publ ication are subject to change without notice. This pub lication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. ORDER CODE : (c) 1997 SGS-THOMSON Microelectronics - Printed in Italy - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdo m - U.S.A. 5/5 DIP8.TBL 3.18 0.125 PM-DIP8.EPS |
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