Document
SC5388
5-MODE PRESET EQUALIZER WITH BASS BOOSTER
DESCRIPTION
The SC5388 is a 2-channel digital preset equalizer utilizing CMOS technology. It provides 5 different sound selections, namely: Flat/normal, rock, Pops, Classic and Jazz. A Bass Booster may be added any of 5 sound selections, thereby creating more audio versatility. SC5388 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
* Wide operating voltage range(VCC=5.0V ~ 11.0V) * Low total harmonic distortion and high S/N ratio
(THD+N<0.02%, S/N > 95dB) * LED display output mode * Less external parts * 5-sound selections provided * Bass booster function * Direct and cyclic key selection provided * 2-Channel output
ORDERING INFORMATION
Device SC5388 SC5388S
Package SDIP-24-300-2.54 SOP-24-375-1.27
APPLICATIONS
* Walkman * Car Audio * Fader and MPEG Card * Multimedia Audio components
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03 Page 1 of 11
SC5388
ABSOLUTE MAXIMUM RATINGS
Characteristics Supply Voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature
Symbol VCC VIN PD Topr Tstg
Ratins 11.0
0.3 ~ VCC+0.3V 200
-20 ~ +75 -40 +125
Unit V V
mW °C °C
ELECTRICAL CHARACTERISTICS (Tamb=25°C,VCC=9.0V,Vi=1Vrms, f=1kHz, Unless otherwise specified)
Characteristics Operating Supply Voltage Operating Supply Current Maximum Output Voltage
Output Noise
Total Harmonic Distortion
Input Impedance Output Impedance Maximum Input Voltage
Symbol
Test conditions
VCC
ICC VCC=9v,Vi=0, Flat Mode
VOM VCC=9.0V
VCC=9.0V,Vi=0, VNO
BW=400~30kHz , A-weighting
THD
VCC=9.0V,Vi=0.2Vrms, BW=400~30kHz , A-weighting
RIN VCC=9.0V
ROUT VCC=9.0V
VI(max) VCC=9.0V
Min. 5.0 3.5
50
Typ. 9.0 11
Max. 11.0
Unit V mA
Vrms
20 µVrms
0.02 %
60 kΩ 5.5 kΩ
2.0 Vrms
PIN CONFIGURATIONS
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03 Page 2 of 11
SC5388
PIN DESCIPTION
Pin No. 1 2
3
4
5 6 7 8 9
10
11 12 13 14 15 16 17 18 19 20
21
22
23
24
Pin Name INL BL1
BL2
TL
OUTL VCC BIAS GND SEL
MUTE
CYC BB NC BLED FLAT ROCK POPS CLASSIC JASS OUTR
BR1
BR2
TR
INR
Description Left Channel Input. Left Bass Control Pin 1. 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. Left Channel Output in. Positive Supply Voltage. A capacitor may be connected between this Pin and GND. Ground. Select Control Pin. Mute Pin. The Mute Pin can eliminate the noise when mode changing occurs. A capacitor is connected between this Pin and GND. Cyclic Select Pin. Bass Booster Control Input Pin. No Connected. Bass Booster Control Input Pin. FLAT Mode Display & Control Input Pin. ROCK Mode Display & Control Input Pin. POPS Mode Display & Control Input Pin. CLASSIC Mode Display & Control Input Pin. JASS Mode Display & Control Input Pin. Right Channel Output in. Right Bass Control Pin 1. A Capacitor may be Connected between this Pin and BR2. Right Bass Control Pin 2. A Capacitor may be Connected between this Pin and BR1. Right Treble Control Pin . A Capacitor may be Connected between this Pin and OUTR. Right Channel Input.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2004.08.03 Page 3 of 11
SC5388
FUNCTIONAL DESCRIPTION
The SC5388 is a 2-channel and 5-Mode digital preset equalizer with a Bass Booster function. It provides two types of key selection mode namely: the Direct and the Cyclic. These two key selection Modes are determined by SEL pin. Please refer to the table below:
Key Selection Mode Direct Cyclic
SEL Pin Low
Floating/High
Description Press FLAT key to activate Flat Mode Press ROCK key to activate Rock Mode Press POPS key to activate Pops Mode Press CLASSIC key to activate Classic Mode Press JAZZ key to activate Jazz Mode ...Flat→ Rock →Pops→ Classic→ Jazz →Flat→Rock...
Note: 1). The Bass Booster 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.
2). Under the Cyclic Selection mode, press the CYC Key, to go to the next sound selection.
1. 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 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. That is, press the CYC key to activate the next mode. The BB key controls the Bass Booster. When the power is turned ON, the bass Booster is OFF.
2. DIRECT KEY SELECT.