TDA2320

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 Vol...