NJM Input / 1-Output Stereo Audio Selector

Transcription

1 -Input / -Output Stereo Audio Selector GENERAL DESCRIPTION The NJM is Input / Output Stereo Audio Selector. The NJM consists of switches and buffer operational amplifiers. Based on the internal switch op-amp technology, the NJM features lower output noise, lower distortion and higher channel separation than the general Multiplexers or Analogue Switches. The NJM contains compatibility with NJM(in-out SW),NJM(in-out SW). PACKAGE OUTLINE NJMV APPLICATIONS LCD-TV/PDP-TV Car Stereo Any Audio System FEATURES Operating Voltage. to V Input / Output Stereo Audio Selectors Low Output Noise -dbv typ. Low Distortion.9% typ. Bipolar Technology Package Outline SSOP BLOCK DIAGRAM INA INB LOGIC CNT CNT INA INB INA INB INA INB V Ver.. --

2 PIN CONFIGURATIONS NJM SSOP SSOP INA V INA CNT INA CNT NJMV INB INB INB INA INB 9 PIN.No. SYMBOL FUNCTION PIN.No. SYMBOL FUNCTION Ach Output Terminal 9 INB Bch Input Terminal INA Ach Input Terminal No Connection V Power Supply Terminal INB Bch Input Terminal INA Ach Input Terminal Reference Terminal CNT Control Switch Terminal INB Bch Input Terminal INA Ach Input Terminal Terminal CNT Control Switch Terminal INB Bch Input Terminal INA Ach Input Terminal Bch Output Terminal [Reference] The NJM contains compatibility with NJM (in-out SW),NJM (in-out SW). NJM NJM INA V INA CNT NJMV INB INB 9 INA V INA CNT INA NJMV INB INB INB 9 CNT - -

3 ABSOLUTE MAXIMUM RATINGS (Ta= C) PARAMETER SYMBOL RATING UNIT Supply Voltage V V Power Dissipation P D SSOP 9 ) ) NOTE ): EIA/JEDEC STANDARD Test board (.x.x.mm, layer, FR-) mounting ): EIA/JEDEC STANDARD Test board (.x.x.mm, layer, FR-) mounting mw Operating Temperature Range T OPR - to C Storage Temperature Range T STR - to C ELECTRICAL CHARACTERISTICS ( Ta= C, V =9V) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Voltage V. 9. V Supply Current I CC No Signal - ma Reference Voltage V REF -. - V Voltage Gain G V Vin=Vrms, f=khz - db Total Harmonic Distortion THDN Vin=Vrms, f=khz -.9. % Output Noise Voltage V NO A-Weighted Maximum Output Voltage V OM f=khz, THD=% Cross Talk Channel Separation CT CS Vin=Vrms, f=khz, A-Weighted Vin=Vrms, f=khz, A-Weighted - - (.) - () (.) - () - dbv (µvrms) dbv (Vrms) - db 9 - db Switch-ON Voltage Level V CH. - - V Switch-OFF Voltage Level V CL - -. V Input Impedance R IN - - kω Output Impedance R OUT - - Ω SWITCH CONTROL LOGIC CNT CNT INPUT SELECTOR Ach / Bch L L L H H L H H --

4 TERMINAL DESCRIPTION PIN No. 9 SYMBOL FUNCTION EQUIVALENT CIRCUIT INA INA INA INA INB INB INB INB Ach Input Terminal Ach Input Terminal Ach Input Terminal Ach Input Terminal Bch Input Terminal Bch Input Terminal Bch Input Terminal Bch Input Terminal p k TERMINAL VOLTAGE V/ CNT CNT Control Switch Terminal Control Switch Terminal V () CNT k Ach Output Terminal Bch Output Terminal V/ k Reference Terminal V/ VREF k k V Power Supply Terminal Terminal V V V k - -

5 -- MEASUREMENT CIRCUIT 9 INA INA INB INB INB V INA CNT CNT NJM µf INB INA

6 APPLICATION CIRCUIT µf k µf INA V INA CNT INA NJM INB INB INB k µf CNT INA INB 9 Application note: Resistor(k) and capacitor(µf) connected to CNT are added to reduce pop-noise. The value of input capacitor connected to INA and INA depends on cut-off frequency(calculated by fc=/πrc) you need. R(input impedance)=kω. - -

7 !TYPICAL CHARACTERISTICS ICC vs Supply Voltage No signal VREF vs Supply Voltage No signal o C, o C - to o C ICC [ma] - o C VREF[V] Supply Voltage [V] Supply Voltage [V] GAIN vs FrequencyV=9V, I/O: INA-Aout THDN vs Input Voltage BW: -khz, f=khz, I/O: INA-Aout. Gain Output [db] to o C THDN [%].. o C o C - o C Input Voltage [Vrms] THDN vs Frequency I/O: INA-Aout Maximum Output Voltage vs Frequency V=9V, THD=%, I/O: INA-Aout.. THDN [%]... - to o C Maximum Output Voltage [Vrms]

8 !TYPICAL CHARACTERISTICS Maximum Output Voltage vs Supply Voltage THD=%, I/O: INA-Aout. Maximum Output Voltage vs Load Resistance V=9V, THD=%, f=khz, I/O: INA-Aout / INB-Bout Maximum Output Voltage [Vrms].... Maximum Output Voltage [Vrms]..... Supply Voltage [±V]. RL[Ω] - Cross Talk vs Frequency V=9V, Vin=Vrms, BW:-kHz, I/O: INA-INA/Aout, Select Channel:ch - Cross Talk vs Frequency V=9V, Vin=Vrms, BW:-kHz, I/O: INA-INA/Aout, Select Channel:ch - Rg=.kΩ - - Rg=.kΩ - o C Cross Talk[dB] - - Rg=Ω Cross Talk[dB] o C o C Rg=Ω Channel Separation vs Frequency V=9V, Vin=Vrms, BW:-kHz, I/O: INB-Aout - Channel Separation vs Frequency V=9V, Vin=Vrms, BW:-kHz, I/O: INB-Aout - Rg=.kΩ - Channel Separation[dB] Rg=.kΩ Rg=Ω Rg=Ω Channel Separation[dB] to o C

9 !TYPICAL CHARACTERISTICS Cross Talk[dB] CNT Voltage vscross Talk V=9V, Vin=Vrms, A-w eghit I/O: INA-Aout - o C o C o C CNT Voltage[V] Cross Talk[dB] CNT Voltage vscross Talk V=9V, Vin=Vrms, A-w eghit I/O: INA-Aout o C o C - o C CNT Voltage[V] [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-