5-Mode Preset Equalizer IC - Princeton Technology Corp
Description
Tel: 886-2-66296288 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
z CMOS technology z Low total harmonic distortion and high S/N Ratio: THD + N < 0.
01%, S/N > 95dB z LED display output mode z Least external components z 5 sound selections provided: Flat/Normal, Classic, Rock, Pops, and Jazz z Bass booster function & 3D effect provided z 2-channel output z Wide operating voltage range: 5 ~ 9V z Direct or cyclic key selection is provided z Available in 24 Pins, DIP, SOP, SSOP
APPLICATIONS
z Walkman z Car audio z Mini compo z Multimedia audio components z MPEG card
PT2389 V1.
5
-1-
July, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.
princeton.
com.
tw
5-Mode Preset Equalizer IC with Bass Booster & 3D Effect
PT2389
BLOCK DIAGRAM
INL
BL1 BL2
Buffer
Bass
Treble
GAIN SELECTOR
INR BR1 BR2 VCC
GND
3D
Buffer
Bass
SELECT UNIT CONTROL UNIT
Treble
3D SOUND
OUTL TL
OUTR TR
Mute
BLED Flat
Rock Pops Classic Jazz Cyc SEL
BB Mute
PT2389 V1.
5
-2-
July, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.
princeton.
com.
tw
5-Mode Preset Equalizer IC with Bass Booster & 3D Effect
PT2389
PIN CONFIGURATION
INL 1
24 INR
BL1 2
23 BR1
BL2 3
22 BR2
TL 4
21 TR
OUTL
5
20 OUTR
VCC Bias
6 7
PT2389 19 Jazz
18 Classic
GND
8
17 Pops
SEL
9
16 Rock
M ut e
10
15 Flat
Cyc 11
14 BLED
BB 12
13 3D
PT2389 V1.
5
-3-
July, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.
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