Silan Semiconductors SC5389 5-MODE PRESET EQUALIZER IC WITH BASS BOOSTER & 3D EFFECTS DESCRIPTION The SC5389 is a 2-channel digital preset equalizer utilizing CMOS technology. It provides 5 different sound selections, namely: Flat/Normal, Rock, Pops, Classic and Jazz. Bass Booster and 3D Effects may be added to any of 5 sound selections, thereby creating SDIP-24 more audio versatility. SC5389 provides two types of key selection mode, namely: the Direct and the Cyclic. Pin assignment and application circuit are optimized for cost saving advantages and easy PCB layout. FEATURES SOP-24 * CMOS Technology * Low Total Harmonic Distortion and High S/N Ratio: THD+N<0.01%, S/N>95dB ORDERING INFORMATION * LED Display Output Mode SC5389 SC5389S * 5 Sound Selections Provided: Flat/Normal, Classic, Rock, Pops, and Jazz * Bass Booster Function & 3D Effect Provided APPLICATIONS * 2-Channel Output * Car Audio * Wide Operating Voltage Range: 5 – 9 V * Mini compo * Direct or Cyclic Key Selection is Provided PIN CONFIGURATION 1 24 INR BL1 2 23 BR1 BL2 3 22 BR2 TL 4 21 TR BL1 2 OUTL 5 20 OUTR BL2 3 Vcc 6 19 JAZZ BIAS 7 18 CLASSIC INR 24 GND 8 17 POPS BR1 23 SEL 9 16 ROCK BR2 22 MUTE 10 15 FLAT CYC 11 14 BLED BB 12 13 3D * Multimedia Audio Components BLOCK DIAGRAM INL SC5389 SDIP-24 Packaged SOP-24 Packaged VCC GND 6 8 Buffer 5 OUTL Bass INL 1 Treble 4 TL Gain Selector Buffer 20 OUTR Bass Treble 21 TR Mute Control Unit 3D 13 14 15 BLED FLAT 16 17 18 19 ROCK POPS CLASSIC JAZZ 11 9 CYC SEL 10 MUTE 12 BB HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 1 2000.12.31 Silan Semiconductors SC5389 ABSOLUTE MAXIMUM RATINGS Symbol Rating Unit Supply Voltage Parameter Vcc 10 V Operating Temperature Topr -20 ~ 75 °C Storage Temperature Tstg -40 ~ 125 °C Vi -0.3 ~ Vcc+0.3 V Input Voltage ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Vcc=9V, Vi=1Vrms, f=1kHz) Symbol Test conditions Min Typ Max Unit Supply Voltage Parameter Vcc -- 5 9 9.5 V Supply Current Icc -- 25 -- mA 2.5 -- -- Vrm -- -- -90 dB -- -- 0.01 % Maximum Output Voltage VOM Output Noise VNO Total Harmonic Distortion THD Vcc = 9V, Vi = 0V, Flat mode Vcc = 9V Vcc = 9V, Vi = 0V BW = 20~20kHz A - Weighting Vcc = 9V, Vi = 0.2Vrms BW = 20~20kHz Input Impedance RIN Vcc = 9V -- 100 -- kΩ ROUT Vcc = 9V -- 40 -- Ω VIH Vcc = 9V -- -- 0.7Vcc V Low Level Input Voltage VIL Vcc = 9V 0.3Vcc -- -- V Maximum Input Voltage VIMAX -- -- 2.0 Vrms Output Impedance High Level Input Voltage Vcc = 9V, Flat mode, BB & 3D Off HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2 2000.12.31 Silan Semiconductors SC5389 PIN DESCRIPTION Pin No 1 Symbol I/O INL I Function Left channel input Left bass control pin 1. 2 BL1 -- 3 BL2 -- 4 TL -- 5 OUTL O Left channel output pin 6 Vcc -- Positive supply voltage 7 BIAS -- A capacitor may be connected between this pin and GND. 8 GND -- Ground 9 SEL I A capacitor may be connected between this pin and BL2. Left bass control pin 2. A capacitor may be connected between this pin and BL1. Left treble control pin. A capacitor may be connected between this pin and OUTL. Select control pin Mute pin. 10 MUTE -- The mute pin can eliminate the noise when mode changing occurs. 11 CYC I Cyclic select pin 12 BB I Bass booster control input pin 13 3D I/O 14 BLED O Bass booster display pin 15 FLAT I/O Flat mode display & control input pin 16 ROCK I/O Rock mode display & control input pin 17 POPS I/O Pops mode display & control input pin 18 CLASSIC I/O Classic mode display & control input pin 19 JAZZ I/O Jazz mode display & control input pin 20 OUTR O Right channel output pin 21 TR -- 22 BR2 -- 23 BR1 -- 24 INR I A capacitor may be connected between this pin and GND. 3D effect control input pin / output LED pin Right treble control pin A capacitor is connected between this pin and OUTR. Right bass control pin 2 A capacitor is connected between this pin and BR1 Right bass control pin1 A capacitor is connected between this pin and BR2 Right channel input pin HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 3 2000.12.31 Silan Semiconductors SC5389 FUNCTIONAL DESCRIPTION SC5389 is a 5-Mode Preset Equalizer IC with a Bass Booster and 3D Effects. It has 2 types of key selection mode, namely: Direct and Cyclic. The Direct or Cyclic Key Selection Mode are determined by the SEL pin. Please refer to the table below: Key Selection Mode SEL Pin Description Press FLAT key to active Flat Mode Press ROCK Key to activate Rock Mode Direct Low Press POPS Key to activate Pops Mode Press CLASSIC Key to activate Classic Mode Press JAZZ Key to activate Jazz Mode Cyclic* Flat Floating / High Rock Jazz Pops Classic Note: The Bass Booster Function and the 3D Effect can be controlled in the same manner under the Direct or the Cyclic Key Selection Mode. To turn the Bass Booster On or Off, press the BB Key. To turn the 3D Effect On or Off, press the 3D key. * = Under the Cyclic Selection Mode, press the CYC key, to go to next sound selection. Cyclic Key Selection Mode As seen in the table above, the Cyclic Key Selection Mode is active when the SEL Pin is Floating or “High”. Under this mode, any of the sound selections (Flat, Rock, Pops, Classic, Jazz) may be selected by pressing the CYC Key. The default value is the Flat Mode. This means that when power is turned ON, the Flat mode is active. Pressing the Cyclic Key lets you go from one sound selection to the other in the following order: Flat – Rock – Pops – Classic – Jazz. Please refer to the diagram below. Rock mode* Power On Flat mode* Jazz mode* Pops mode* Classic mode* Note: * Press the CYC Key to activate the next mode Press the BB Key to activate the Bass Booster Function Press the 3D Key to activate the 3D Effect HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 4 2000.12.31 Silan Semiconductors SC5389 The BB Key controls the Bass Booster. When the power is turned ON, the Bass Booster is OFF. Likewise, the 3D Key controls the 3D Effect. When the power is turned ON, the 3D Effect is OFF. Direct Key Selection Mode The Direct Key Selection Mode is active when the SEL Pin is set to “LOW”. As the name implies, you can directly select the sound selection you like (Flat, Classic, Rock, Jazz, or Pops) simply by pressing the respective keys. This means, that to select the Jazz mode, press the JAZZ Key, Classic Mode, press the CLASSIC Key and so forth. Take note that when the power is turned ON, the Flat Mode is active. The Bass Booster Function and 3D Effect are independent of the key / sound mode selected and may be turned On or Off at any time. FREQUENCY RESPONSE The following diagrams illustrate the various frequency response under the various sound selection (Flat, Rock, Pops, Classic, Jazz and Bass Booster, 3D). FLAT Mode Rock Mode +25 +25 +20 +20 Rock+3D+BB Rock+BB +15 +15 +10 dB +10 dB Rock+3D Flat+3D+BB +5 Flat+3D Rock Mode +5 Flat+BB +0 +0 Flat Mode -5 -5 20 50 100 200 500 1k Hz 2k 5k 10k 20k Pops Mode 20 50 100 200 500 1k Hz 2k 5k 2k 5k 10k 20k Classic Mode +25 +25 +20 +20 +15 +15 Classic+3D+BB Pops+3D+BB dB Classic+BB Pops+BB +10 +10 dB Pops+3D +5 +5 Pops Mode Classic+3D +0 -5 Classic Mode +0 20 50 100 200 500 1k 2k 5k 10k 20k Hz -5 20 50 100 200 500 1k Hz 10k HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 5 20k 2000.12.31 Silan Semiconductors SC5389 +25 Jazz Mode +20 Jazz+3D+BB Jazz+BB +15 Jazz+3D +10 Jazz Mode dB +5 +0 -5 20 50 100 200 500 Hz 1k 2k 5k 10k 20k Different sound selections exhibit different frequency gains at different frequency levels. Please refer to the table below: Sound Selection Typ. f = 80Hz f = 1kHz f = 10kHz Flat 3 3 3 Rock 14 6.5 12.5 Pops 8 6 12.5 Classic 8.5 7 7.5 Jazz 14.5 7.5 10.5 Flat + Bass Booster 10 5 4 Rock + Bass Booster 18.5 7 12.5 Pops + Bass Booster 12.5 6.5 12.5 Classic + Bass Booster 13 7 8 Jazz + Bass Booster 18.5 7.5 10.5 Flat + 3D 7 7 7 Rock + 3D 18 10 16 Pops + 3D 11.5 9.5 16 Classic + 3D 12 9.5 11 Jazz + 3D 18 10.5 14 Flat + BB + 3D 14 8.5 7.5 Rock + BB + 3D 22.2 10.5 16.5 16 Pops + BB + 3D 16.5 10 Classic + BB + 3D 16.5 10.5 11 Jazz + BB + 3D 22.5 11 14 Unit dB HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 6 2000.12.31 Silan Semiconductors SC5389 TREBLE AND BASS ADJUSTMENTS It is general knowledge that different individuals have different listening preferences. The application circuit of SC5389 included in this specification has been designed for the taste general listening public; however, you can make the necessary adjustment to suit your personal taste. Please refer to the sections below. Treble Adjustment The Treble adjustment is made by changing the value of the 2 capacitors connected between TL and OUTL. Please refer to the diagram below. +12 +11 +10 +9 +8 +7 1800pF +6 1500pF +5 +4 1200pF dB +3 +2 +1 0 -1 -2 -3 -4 20 50 100 200 500 Hz 1k 2k 5k 10k 20k TL-OUTL Capacitors vs. Frequency Response As the capacitor value becomes bigger, the treble of the gain frequency curve is shifted down. Likewise, as the capacitor value becomes smaller, the treble gain frequency curve shifts the opposite direction. Referring to the diagram above, we see that at 6dB, different capacitor values exhibit different frequency responses. Capacitor value 1800pF has a lower frequency gain response than 1200pF capacitor. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 7 2000.12.31 Silan Semiconductors SC5389 Bass Adjustment Bass adjustments can be made by changing the values of the capacitors connected between BL1 – BL2 pins, and BR1 – BR2 pins. The larger the capacitor value used, the frequency response curve shifts down. Likewise, the capacitor value, the frequency response curve shifts the opposite direction. Please refer to the diagram below. +12 +11 +10 +9 +8 0.056µf +7 0.068µf +6 +5 0.1µf +4 dB +3 +2 +1 0 -1 -2 -3 -4 20 50 100 200 500 Hz 1k 2k 5k 10k 20k BL1—BL2 Capacitor vs. Frequency Response Curve In the diagram above, at 9 dB – different capacitor values exhibit different frequency responses. A capacitor with a value of 0.1µf has smaller frequency response than a 0.056µf capacitor. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 8 2000.12.31 Silan Semiconductors SC5389 APPLICATION CIRCUIT Direct Key Mode SC5389 1µf 1µf IN_L 1 INL INR 24 2 BL1 BR1 23 3 BL2 BR2 22 4 TL TR 21 IN_R 0.068µf 1500pf 5.6kΩ OUT_L 10kΩ VCC 0.068µf 1500pf 1500pf 5 OUTL 6 Vcc OUTR 20 JAZZ 19 5.6kΩ OUT_R 1µf VCC 1µf 10kΩ Jazz 100µf 7 BIAS CLASSIC 18 8 GND POPS 17 Classic 47µf 0.1µf 0.1µf 4.7kΩ 1500pf 3D Pops 9 SEL ROCK 16 Rock 0.1µf 10 MUTE FLAT 15 11 CYC BLED 14 12 BB 3D 13 Flat BB LED Note: Please use 0.068µf, 1500pf Mylar Capacitors. 470Ω Cyclic Key Mode SC5389 1µf 1µf IN_L 1 INL INR 24 2 BL1 BR1 23 BL2 BR2 3 22 IN_R 0.068µf 0.068µf 5.6kΩ OUT_L 1500pf 1500pf 4 5 10kΩ TR TL 21 1500pf VCC OUTR 20 OUT_R 10kΩ 1µf 1µf 6 100µf 0.1µf 0.1µf OUTL 5.6kΩ 1500pf 47µf Vcc JAZZ 19 7 BIAS CLASSIC 18 8 GND POPS 17 SEL 9 VCC 4.7kΩ 0.1µf CYC BB 3D ROCK 16 10 MUTE FLAT 15 11 CYC BLED 14 12 BB 3D 13 LED 470Ω Note: Please use 0.068µf, 1500pf Mylar Capacitors. HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 9 2000.12.31 Silan Semiconductors SC5389 PACKAGE OUTLINE DIP-24-300-2.54 UNIT:mm 7.62 6.40 0.25 2.54 1.50 15 degree 3.30 5.08 3.51 34.50 0.46 1.27 15.74 7.70 9.53 UNIT:mm 10.45 SOP-24-375-1.27 0.41 1.95 15.34 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 10 2000.12.31