NJM2750 4 INPUT / 1 OUTPUT STEREO AUDIO SELECTOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM2750 is 4 Input / 1 Output Stereo Audio Selector. Based on the internal Switch OP-AMP technology, the NJM2750 has lower Output Noise, lower Distortion and higher Channel Separation than the ordinary Multiplexers or Analogue Switches. NJM2750M The NJM2750 is suitable for any kinds of audio equipments, such as TV, Car Stereo, Mini-Compo and so on. FEATURES Operating Voltage (4.7 to 13V) 4 Input / 1 Output Audio Selectors Dual Channel for Stereo Use Low Output Noise (-110dBV typ.) Low Distortion (0.005% typ.) Bipolar Technology Package Outline (DMP16) BLOCK DIAGRAM PIN CONFIGURATION PIN No. SYMBOL FUNCTION 1 IN1a Ach INPUT SELECTOR IN1a 1 16 GND 2 CNT1 CONTROL 1 3 IN2a Ach INPUT SELECTOR 2 CNT1 2 15 OUTa 4 CNT2 CONTROL 2 5 IN4a Ach INPUT SELECTOR 4 V+ 6 IN1b Bch INPUT SELECTOR 1 IN2a 3 14 V+ 7 IN2b Bch INPUT SELECTOR 2 8 IN4b Bch INPUT SELECTOR 4 LOGIC CNT2 4 13 IN3a 9 IN3b Bch INPUT SELECTOR 3 10 (N.C.) NO CONNECT bias 11 OUTb Bch OUTPUT IN4a 5 12 Vref 12 Vref REFERENCE VOLTAGE 13 IN3a Ach INPUT SELECTOR 3 14 V+ POWER SUPPLY IN1b 6 11 OUTb 15 OUTa Ach OUTPUT 16 GND GROUND IN2b 7 10 (N.C.) IN4b 8 9 IN3b -1-NJM2750 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL RATING UNIT + Supply Voltage V 15 V Power Dissipation P 300 mW D Operating Temperature Range T -40 to +85 C OPR Storage Temperature Range T -40 to +125 C STR + ELECTRICAL CHARACTERISTICS ( Ta=25C, V =9V) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT + Operating Voltage V 4.7 9.0 13.0 V Supply Current I No Signal - 10 20 mA CC Reference Voltage V - 4.5 - V REF Voltage Gain G Vin=1Vrms, f=1kHz -1 0 1 dB V Total Harmonic Distortion THD+N Vin=1Vrms, f=1kHz - 0.005 0.05 % - -110 -100 dBV Output Noise Voltage V A-Weighted NO - (3) (10) (Vrms) 6 8 dBV Maximum Output Voltage V f=1KHz, THD=1% - OM (2.0) (2.5) (Vrms) Vin=1Vrms, f=1kHz, Cross Talk CT 70 90 - dB A-Weighted Vin=1Vrms, f=1kHz, Channel Separation CS 70 90 - dB A-Weighted Switch-ON Voltage Level V 2.4 - - V CH Switch-OFF Voltage Level V - - 0.8 V CL SWITCH CONTROL LOGIC CNT2 CNT1 INPUT SELECTOR Ach / Bch L L 1 L H 2 H L 3 H H 4 - 2 -