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| NJM2752 2-Input / 1-Output Stereo Audio Selector s GENERAL DESCRIPTION The NJM2752 is 2-Input / 1-Output Stereo Audio Selector. The NJM2752 consists of switches and buffer operational amplifiers. Based on the internal switch op-amp technology, the NJM2752 features lower output noise, lower distortion and higher channel separation than the general Multiplexers or Analogue Switches. The NJM2752 contains compatibility with NJM2753 (3in-1out SW),NJM2755 (4in-1out SW). It is suitable for LCD-TV/PDP-TV, Car Stereo, and Any Audio System. s PACKAGE OUTLINE NJM2752RB2 NJM2752V s FEATURES q Operating Voltage q 2-Input / 1-Output Stereo Audio Selectors q Low Output Noise q Low Distortion q Bipolar Technology q Package Outline 4.7 to 10V -114dBV typ. 0.0009% typ. TVSP10,SSOP14 s BLOCK DIAGRAM LOGIC CNT1 IN1A IN1B OUTA IN2A IN2B OUTB V Vref Vref GND Ver.2.0 -1- NJM2752 s PIN CONFIGURATIONS TVSP10,SSOP14 TVSP10 SSOP14 OUTB IN1B GND IN2B Vref 10 1 NJM2752RB2 1 OUTA IN1A V+ IN2A CNT1 OUTA IN1A V+ IN2A CNT1 N.C N.C OUTB 14 NJM2752V 2 9 2 IN1B GND IN2B Vref N.C N.C 13 3 8 3 12 4 7 4 11 5 6 5 10 6 9 7 8 PIN.No. (TVSP10) PIN.No. (SSOP14) SYMBOL OUTA IN1A V+ IN2A CNT1 N.C FUNCTION Ach Output Terminal Ach Input Terminal1 Power Supply Terminal Ach Input Terminal2 Control Switch Terminal1 No Connection PIN.No. (TVSP10) PIN.No. (SSOP14) SYMBOL Vref IN2B GND IN1B OUTB FUNCTION Reference Terminal Bch Input Terminal2 GND Terminal Bch Input Terminal1 Bch Output Terminal 1 2 3 4 5 1 2 3 4 5 6,7 8,9 6 7 8 9 10 10 11 12 13 14 [Reference] The NJM2752 contains compatibility with NJM2753 (3in-1out SW),NJM2755 (4in-1out SW). NJM2753 NJM2755 1 OUTA OUTB 14 1 OUTA OUTB 16 NJM2753V 2 IN1A V+ IN2A CNT1 IN3A CNT2 IN1B GND IN2B Vref IN3B N.C NJM2755V 13 2 IN1A V+ IN2A CNT1 IN3A CNT2 IN4A IN1B GND IN2B Vref IN3B N.C IN4B 15 3 12 3 14 4 11 4 13 5 10 5 12 6 9 6 11 7 8 7 10 8 9 -2- NJM2752 s ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL Supply Voltage V + RATING 12 TVSP10 1) 470 2) 640 SSOP14 1) 450 2) 570 UNIT V Power Dissipation PD mW NOTE 1): EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting 2): EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 4layer, FR-4) mounting Operating Temperature Range Storage Temperature Range TOPR TSTR -40 to +85 -40 to +150 C C s ELECTRICAL CHARACTERISTICS ( Ta=25C, V =9V) PARAMETER Operating Voltage Supply Current Reference Voltage Voltage Gain Total Harmonic Distortion Output Noise Voltage Maximum Output Voltage Cross Talk Channel Separation Switch-ON Voltage Level Switch-OFF Voltage Level Input Impedance Output Impedance s SWITCH CONTROL LOGIC CNT1 INPUT SELECTOR Ach / Bch L H 1 2 SYMBOL V + + TEST CONDITION No Signal Vin=1Vrms, f=1kHz Vin=1Vrms, f=1kHz A-Weighted f=1kHz, THD=1% Vin=1Vrms, f=1kHz, A-Weighted Vin=1Vrms, f=1kHz, A-Weighted MIN. 4.7 -1 6 (2.0) 70 80 2.4 - TYP. 9.0 10 4.5 0 0.0009 -114 (2) 8 (2.5) 100 110 100 45 MAX. 10 15 1 0.03 -100 (10) 0.5 - UNIT V mA V dB % dBV (Vrms) dBV (Vrms) dB dB V V k ICC VREF GV THD+N VNO VOM CT CS VCH VCL RIN ROUT -3- NJM2752 sMEASUREMENT CIRCUIT (SSOP14) 10F + 1 OUTA OUTB 14 + 10F 10F NJM2752 10F + 2 IN1A V+ IN2A CNT1 N.C N.C IN1B GND IN2B Vref N.C N.C 13 + + 3 12 + 100F 10F + 10F 10F 4 11 5 10 + 6 9 7 8 -4- NJM2752 sAPPLICATION CIRCUIT (SSOP14) 10F + 1 OUTA OUTB 14 + 10F 10F NJM2752 10F + 2 IN1A V+ IN2A CNT1 N.C N.C IN1B GND IN2B Vref N.C N.C 13 + + 3 12 + 100F 10F + 10F 10F 4 11 100k 5 10 + 1F 6 9 7 8 Application note: Resistor(100k) and capacitor(1F) connected to CNT1 are added to reduce pop-noise. The value of input capacitor connected to IN1A and IN2A depends on cut-off frequency(calculated by fc=1/2RC) you need. R(input impedance)=100k. -5- NJM2752 s TERMINAL DESCRIPTION PIN No. 2 4 11 13 SYMBOL IN1A IN2A IN2B IN1B FUNCTION Ach Input Terminal1 Ach Input Terminal2 Bch Input Terminal2 Bch Input Terminal1 EQUIVALENT CIRCUIT TERMINAL VOLTAGE V+/2 IN1A IN2A IN1B IN2B 650 100k 3p 5 CNT1 Control Switch Terminal1 0V (GND) CNT 650 100k 1 14 OUTA OUTB Ach Output Terminal Bch Output Terminal OUTA OUTB V+/2 45 100k 10 Vref Reference Terminal V+/2 VREF 50k 650 50k 3 12 V+ GND Power Supply Terminal GND Terminal V+ V+ 0V 12k GND -6- NJM2752 !TYPICAL CHARACTERISTICS ICC vs Supply Voltage No signal 14 7 VREF vs Supply Voltage No signal 25105 12 10 ICC [mA] VREF[V] 8 6 4 2 0 0 2 4 6 8 10 12 14 Supply Voltage [V] GAIN vs Frequency V +=9V, I/O: INA1-Aout 1 0.8 10 0.6 0.4 Gain Output [dB] 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 10 100 1000 Frequency [Hz] 10000 100000 0.0001 0.01 0.1 1 10 100 6 5 4 3 2 1 0 0 2 4 6 8 10 12 14 Supply Voltage [V] THD+N vs Input Voltage BW:10-22kHz(f=100Hz), 400-30kHz(f=1kHz, 10kHz) I/O: INA1-Aout -40105 -40 -40105 1 THD+N [%] 0.1 105 -4025 0.01 0.001 Input Voltage [Vrms] THD+N vs Frequency I/O: INA1-Aout 1 Maximum Output Voltage vs Frequency V +=9V, THD=1%, I/O: INA1-Aout 2.7 2.65 Maximum Output Voltage [Vrms] 0.1 THD+N [%] 2.6 2.55 2.5 2.45 2.4 2.35 0.01 -40105 0.001 0.0001 10 100 1000 Frequency [Hz] 10000 100000 2.3 1 10 100 1000 10000 100000 Frequency [Hz] -7- NJM2752 !TYPICAL CHARACTERISTICS Maximum Output Voltage vs Supply Voltage THD=1%, I/O: INA1-1Aout 4 3.5 Maximum Output Voltage [Vrms] 3 2.5 2 1.5 1 0.5 0 0 2 4 6 8 10 12 14 Supply Voltage [V] Cross Talk vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INA1-Aout, Select Channel:2ch Maximum Output Voltage [Vrms] 3.0 Maximum Output Voltage vs Load Resistance V +=9V, THD=1%, f=1kHz, I/O: INA1-Aout / INB1-Bout 2.5 2.0 1.5 1.0 0.5 0.0 1 10 100 RL[] Cross Talk vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INA1-Aout, Select Channel:2ch 1000 10000 100000 -40 -50 -40 -50 Rg=5.1k Rg=3.3k -60 Cross Talk[dB] Cross Talk[dB] -70 -80 -90 -100 -60 -70 -80 105 25 -40 Rg=620 -90 -100 Rg=0 -110 10 100 1000 Frequency [Hz] Channel Separation vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INB1-Aout 10000 100000 -110 10 100 1000 Frequency [Hz] Channel Separation vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INB1-Aout 10000 100000 -40 -50 -40 -50 Rg=5.1k Rg=3.3k Channel Separation[dB] Channel Separation[dB] -60 -70 -80 -90 -100 -110 10 100 1000 Frequency [Hz] 10000 100000 -60 -70 -80 105 25 -40 Rg=620 Rg=0 -90 -100 -110 10 100 1000 Frequency [Hz] 10000 100000 -8- NJM2752 !TYPICAL CHARACTERISTICS CNT Voltage vsCross Talk V +=9V, Vin=1Vrms, A-w eghit I/O: IN2A-Aout 10 0 -10 -20 -30 Cross Talk[dB] -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 0 10 0 -10 -20 -30 Cross Talk[dB] -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 CNT Voltage vsCross Talk V +=9V, Vin=1Vrms, A-w eghit I/O: IN1A-Aout -40 25 105 -40 25 105 0.5 1 CNT Voltage[V] 1.5 2 0 0.5 1 1.5 CNT Voltage[V] 2 2.5 3 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -9- |
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