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SC7315 Dataheets PDF



Part Number SC7315
Manufacturers Silan Microelectronics
Logo Silan Microelectronics
Description 2CH OUTPUT STEREO AUDIO PROCESSOR
Datasheet SC7315 DatasheetSC7315 Datasheet (PDF)

SC7315 2-CH OUTPUT STEREO AUDIO PROCESSOR DESCRIPTION The SC7315 is a volume, tone (bass and treble), balance (left/ right) and fader processor for quality audio applications in car radio and Hi-Fi systems. Selectable input gain and external loudness function are provided. Control is accomplished by serial I 2C bus microprocessor interface. The AC signal settings is obtained by resistor networks and switches combined with operational amplifiers. Due to the Used CMOS technology, low distortion, l.

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SC7315 2-CH OUTPUT STEREO AUDIO PROCESSOR DESCRIPTION The SC7315 is a volume, tone (bass and treble), balance (left/ right) and fader processor for quality audio applications in car radio and Hi-Fi systems. Selectable input gain and external loudness function are provided. Control is accomplished by serial I 2C bus microprocessor interface. The AC signal settings is obtained by resistor networks and switches combined with operational amplifiers. Due to the Used CMOS technology, low distortion, low noise and low DC stepping are obtained. DIP-20-300-2.54 FEATURES * 2 stereo inputs * Two speaker attenuators: --2 independent speakers control in 1.25dB steps for balance and fader facilities --Independent mute function * All functions programmable via serial I 2C Bus * Loudness function * Volume control in 1.25dB steps * Treble and bass control * Input and output for external equalizer ornoise reduction system Device SC7315 SC7315S SOP-20-375-1.27 ORDERING INFORMATION Package DIP-20-300-2.54 SOP-20-375-1.27 BLOCK DIAGRAM www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.0 2004.08.03 Page 1 of 13 SC7315 ABSOLUTE MAXIMUM RATING Characteristics Supply Voltage Operating Temperature Storage Temperature Symbol VS Tamb Tstg Ratings 10.2 -40 ~ +85 -55 ~ +150 Unit V °C °C QUICK REFERENCE DATA Characteristics Supply Voltage Maximum Input Signal Handling Total Harmonic Distortion ,V=1Vrms, f=1kHz Signal to Noise Ratio Channel Separation, f=1kHz Volume Control, 1.25dB Step Bass and Treble Control, 2dB step Fader and Balance Control, 1.25dB step Input Gain, 3.75dB Step Mute Attenuation Symbol Vs VCL THD S/N SC -78.75 -14 -38.75 0 100 Min. 6 2 0.01 106 103 0 +14 0 11.25 0.1 Typ. 9 Max. 10 Unit V Vrms % dB dB dB dB dB dB dB ELECTRICAL CHARACTERISTICS (Refer to the test circuit) (Tamb=25°C,VS=9.0V,RL=10kΩ Characteristics SUPPLY VOLTAGE www.DataSheet4U.com RG=600Ω Symbol all controls flat(G=0), f=1kHz,Unless otherwise specified) Test conditions Min. Typ. Max. Unit Operating Supply Voltage Operating Supply Current Ripple Rejection of Supply Voltage VOLUME CONTROL Input Resistance Control Range Minimum Attenuation Maximum Attenuation Step Resolution Attenuation Set Error Tracking Error DC Steps SPEAKER ATTENUATORS Control Range VS IS SVR 6 9 20.0 10.0 35.0 V mA dB kΩ dB dB dB dB dB dB mV mV 60 80 RIV Crange AV(min) AV(max) ASTEP 20 70 -1 70 0.5 AV=0 to – 20dB AV=-20 to –60dB -1.25 -3 33 75 0 75 1.25 0 50 80 1 80 1.75 1.25 2 2 EA ET VDC Adjacent attenuation steps From 0dB to AV max 0 0.5 3 7.5 Crange 35 37.5 40 dB (To be continued) HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.0 2004.08.03 Page 2 of 13 SC7315 (Continued) Characteristics Step Resolution Attenuation Set Error Output Mute Attenuation DC Steps BASS CONTROL (note 1) Control Range Step Resolution Internal Feedback Resistance TREBLE CONTROL (note 1) Control Range Step Resolution AUDIO OUTPUTS Clipping Level Output Load Resistance Output Load Capacitance Output Resistance DC Voltage Level GENERAL Symbol SSTEP EA AMUTE VDC Test conditions Min. 0.5 Typ. 1.25 Max. 1.75 1.5 Unit dB dB dB 80 Adjacent attenuation steps From 0dB to MUTE ±12 1 34 ±13 1 100 0 1 ±14 2 44 ±14 2 3 10 ±16 3 58 ±15 3 mV mV GB BSTEP RB Maximum boost/cut dB dB kΩ dB dB Gt TSTEP Maximum boost/cut VOCL RL CL ROUT VOUT THD=0.3% 2 4 2.5 Vrms kΩ 10 nF Ω V µV 15 µV µV dB 0.1 0.3 % % % dB 1 2 dB dB 30 4.2 75 4.5 120 4.8 BW=20 ~20kHz,flat output muted Output Noise eNO BW=20 ~20kHz,flat All gains=0dB A curve, all gains =0 dB Signal to Noise Ratio www.DataSheet4U.com 2.5 5 3 106 0.01 0.09 0.04 80 103 0 0 S/N d All gains=0dB; Vo=1Vrms Av=0,VIN=10mV Distortion Av=-20dB, VIN=1Vrms Av=-20dB,VIN=0.3Vrms Channel Separation Left/Right Total Tracking Error BUS INPUTS Input Low Voltage Input High Voltage Input Current Output Voltage SDA Acknowledge NOTES: Sc AV=0 to – 20 dB AV=-20 to –60 dB VIL VIH IIN Vo Io=1.6mA 3 -5 1 V V µA V +5 0.4 (1) Bass and treble response see Figure 16. The center frequency and quality of the response behavior can be chosen by the external circuitry. A standard first order bass response can realized by a standard feedback network. (2) The input is grounded through the 2.2µF capacitor. HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.0 2004.08.03 Page 3 of 13 SC7315 PIN CONFIGURATIONS CREF VDD GND L TREBLE R IN(R) LOUD R NC LOUD L 5 6 7 8 9 16 OUT R 15 BOUT(R) 14 BIN(R) BASS 13 BOUT(L) 12 BIN(L) 11 IN(L) 1 2 3 4 20 SCL 19 SDA 18 DGND 17 OUT L BUS INPUTS NC 10 www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.0 2004.08.03 Page 4 of 13 SC7315 TYPICAL CHARACTERISTICS PERFORMANCE www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.0 2004.08.03 Page 5 of 13 SC7315 TYPICAL CHARACTERISTICS PERFORMANCE (continued) Fig.11 Supply Voltage Rejection vs. Frequency .


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