Silan
Semiconductors
SC5389
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
1
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
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
* CMOS Technology
* Low Total Harmonic Distortion and High S/N Ratio:
THD+N<0.01%, S/N>95dB
* LED Display Output Mode
* 5 Sound Selections Provided: Flat/Normal, Classic, Rock, Pops,
and Jazz
* Bass Booster Function & 3D Effect Provided
* 2-Channel Output
* Wide Operating Voltage Range: 5 9 V
* Direct or Cyclic Key Selection is Provided
SOP-24
SDIP-24
ORDERING INFORMATION
SC5389
SC5389S
SDIP-24 Packaged
SOP-24 Packaged
APPLICATIONS
* Car Audio
* Mini compo
* Multimedia Audio Components
PIN CONFIGURATION
BLOCK DIAGRAM
SC5389
15
16
14
12
13
2
1
3
5
4
6
7
8
9
10
11
19
20
18
17
23
24
22
21
INL
BL1
BL2
TL
OUTL
Vcc
BIAS
GND
SEL
MUTE
CYC
BB
3D
BLED
FLAT
ROCK
POPS
CLASSIC
JAZZ
OUTR
TR
BR2
BR1
INR
14
15
16
17
18
19
11
9
12
10
21
20
4
5
13
22
23
24
3
2
1
Control Unit
Bass
Treble
Gain Selector
Treble
Bass
Mute
6
8
INL
BL1
BL2
INR
BR1
BR2
3D
BLED
FLAT
ROCK POPS CLASSIC JAZZ
CYC
SEL
BB
MUTE
TR
OUTR
TL
OUTL
GND
V
CC
Buffer
Buffer
Silan
Semiconductors
SC5389
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
2
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Rating
Unit
Supply Voltage
Vcc
10
V
Operating Temperature
Topr
-20 ~ 75
C
Storage Temperature
Tstg
-40 ~ 125
C
Input Voltage
Vi
-0.3 ~ Vcc+0.3
V
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Vcc=9V, Vi=1Vrms, f=1kHz)
Parameter
Symbol
Test conditions
Min
Typ
Max
Unit
Supply Voltage
Vcc
--
5
9
9.5
V
Supply Current
Icc
Vcc = 9V, Vi = 0V, Flat mode
--
25
--
mA
Maximum Output Voltage
V
OM
Vcc = 9V
2.5
--
--
Vrm
Output Noise
V
NO
Vcc = 9V, Vi = 0V
BW = 20~20kHz A - Weighting
--
--
-90
dB
Total Harmonic Distortion
THD
Vcc = 9V, Vi = 0.2Vrms
BW = 20~20kHz
--
--
0.01
%
Input Impedance
R
IN
Vcc = 9V
--
100
--
k
Output Impedance
R
OUT
Vcc = 9V
--
40
--
High Level Input Voltage
V
IH
Vcc = 9V
--
--
0.7Vcc
V
Low Level Input Voltage
V
IL
Vcc = 9V
0.3Vcc
--
--
V
Maximum Input Voltage
V
IMAX
Vcc = 9V, Flat mode, BB & 3D Off
--
--
2.0
Vrms
Silan
Semiconductors
SC5389
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
3
PIN DESCRIPTION
Pin
No
Symbol
I/O
Function
1
INL
I
Left channel input
2
BL1
--
Left bass control pin 1.
A capacitor may be connected between this pin and BL2.
3
BL2
--
Left bass control pin 2.
A capacitor may be connected between this pin and BL1.
4
TL
--
Left treble control pin.
A capacitor may be connected between this pin and OUTL.
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
Select control pin
10
MUTE
--
Mute pin.
The mute pin can eliminate the noise when mode changing occurs.
A capacitor may be connected between this pin and GND.
11
CYC
I
Cyclic select pin
12
BB
I
Bass booster control input pin
13
3D
I/O
3D effect control input pin / output LED pin
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
--
Right treble control pin
A capacitor is connected between this pin and OUTR.
22
BR2
--
Right bass control pin 2
A capacitor is connected between this pin and BR1
23
BR1
--
Right bass control pin1
A capacitor is connected between this pin and BR2
24
INR
I
Right channel input pin
Silan
Semiconductors
SC5389
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
4
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
Press POPS Key to activate Pops Mode
Press CLASSIC Key to activate Classic Mode
Direct
Low
Press JAZZ Key to activate Jazz Mode
Cyclic*
Floating / High
Flat
Rock
Pops
Jazz
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.
Power On
Flat mode*
Jazz mode*
Classic mode*
Pops mode*
Rock 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
Silan
Semiconductors
SC5389
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
5
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
20
50
100
200
500
1k
2k
5k
10k
20k
-5
+0
+5
+10
+15
+20
+25
Flat Mode
Flat+BB
Flat+3D
Flat+3D+BB
dB
Hz
20
50
100
200
500
1k
2k
5k
10k
20k
-5
+0
+5
+10
+15
+20
+25
Rock Mode
Rock+BB
Rock+3D
Rock+3D+BB
dB
Hz
Pops Mode
Classic Mode
20
50
100
200
500
1k
2k
5k
10k
20k
-5
+0
+5
+10
+15
+20
+25
Pops Mode
Pops+BB
Pops+3D
Pops+3D+BB
dB
Hz
20
50
100
200
500
1k
2k
5k
10k
20k
-5
+0
+5
+10
+15
+20
+25
Classic Mode
Classic+BB
Classic+3D
Classic+3D+BB
dB
Hz
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