Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
5-Mode Preset Equalizer IC with Bass Booster & 3D Effect
PT2389
DESCRIPTION
PT2389 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. PT2389 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
n
CMOS Technology
n
Low Total Harmonic Distortion and High S/N Ratio: THD + N < 0.01%, S/N > 95 dB
n
LED Display Output Mode
n
Least External Components
n
5 Sound Selections Provided: Flat/Normal, Classic, Rock, Pops, and Jazz
n
Bass Booster Function & 3D Effect Provided
n
2-Channel Output
n
Wide Operating Voltage Range: 5 ~ 9 V
n
Direct or Cyclic Key Selection is Provided
n
Available in DIP or SO Package
APPLICATIONS
nWalkman
nCar
Audio
nMini
Compo
nMultimedia
Audio Components
nMPEG
Card
PT2389 v1.2
1
Updated July 1999
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
5-Mode Preset Equalizer IC with Bass Booster & 3D Effect
PT2389
PIN CONFIGURATION
IN L
B L1
B L2
TL
OUTL
VCC
B IAS
GND
S EL
M U TE
CYC
BB
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
IN R
BR1
BR2
TR
OUTR
JA ZZ
C LA SSIC
POPS
ROCK
FLAT
B LED
3D
P T2389
ORDER INFORMATION
V lid Part N umber
a
PT2389
PT2389- S
PT2389- SN
Package
24 Pins, DIP (300 mil)
24 Pins, SO (300 mil)
24 Pins, SO (150 mil)
PT2389 v1.2
2
Updated July 1999
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
5-Mode Preset Equalizer IC with Bass Booster & 3D Effect
PT2389
APPLICATION CIRCUIT
Direct Key Mode
1u
IN_ L
0.06 8u
5.6K
O U T_ L
10 K
0.1u
0.1u
0.1u
+
1u
Vcc
+ 10 0u
+ 47 u
15 00 p
15 00 p
J azz
Cla ssic
P o ps
R ock
F la t
BB
P T 2389
LE D
0.1 u
Note: Please use 0.068uF , 1500pF Mylar Capacitors.
PT2389 v1.2
3
+
IN R
IN L
BL1
BR1
BL2
BR2
TL
TR
OUTL
OUTR
VCC
J AZ Z
B IA S C LA S S IC
GND
POPS
SEL
ROCK
MUTE
F LAT
CYC
BLED
3D
BB
0.06 8u
15 00 p
15 00 p
5.6K
1u
10 K
4.7K
O U T_ R
+
+
1u
IN_ R
Vcc
3D
470
Updated July 1999
Princeton Technology Corp.
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
5-Mode Preset Equalizer IC with Bass Booster & 3D Effect
PT2389
APPLICATION CIRCUIT
Cyclic Key Mode
1u
IN _ L
0 .0 6 8u
5 .6 K
O U T _L
1 0K
0 .1 u
0 .1 u
0 .1 u
V cc
CYC
4 .7 K
BB
1u
+
V cc
+ 1 00 u
+ 4 7u
1 50 0 p
1 50 0 p
P T 23 89
3D
LED
Note: Please use 0.068uF, 1500pF Mylar Capacitors.
PT2389 v1.2
4
+
IN L
IN R
BL1
BR1
BL2
BR2
TL
TR
O U TL
O U TR
VCC
JA Z Z
B IA S C L A S S IC
GND
POPS
SEL
ROCK
M U TE
FL AT
CYC
BLED
BB
3D
0 .0 6 8u
1 50 0 p
5 .6 K
1 50 0 p
O U T _R
1 0K
+
+
1u
IN _ R
1u
Updated July 1999
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