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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
CMOS technology Low total harmonic distortion and high S/N Ratio: THD + N < 0.01%, S/N > 95dB LED display output mode Least external components 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 ~ 9V Direct or cyclic key selection is provided Available in 24 Pins, DIP, SOP, SSOP
APPLICATIONS
Walkman Car audio Mini compo Multimedia audio components 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 GAIN SELECTOR 3D SOUND OUTR TR SELECT UNIT Buffer Bass Treble OUTL TL
INR BR1 BR2 VCC GND 3D
Buffer
Bass
Treble
CONTROL UNIT
Mute
BLED
Pops
Classic
Rock
PT2389 V1.5
-2-
Mute
Jazz
SEL
Flat
Cyc
BB
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 BL1 BL2 TL OUT L V CC Bias GND S EL Mute Cyc BB 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 INR BR1 BR2 TR OUT R Jazz Classic Pops Rock F lat BLED 3D
PT23 89
19 18 17 16 15 14 13
PT2389 V1.5
-3-
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 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 DESCRIPTION
Pin Name INL
BL1 BL2 TL OUTL VCC Bias GND SEL Mute Cyc BB 3D BLED Flat Rock Pops Classic Jazz OUTR TR BR2 BR1 INR
I/O I
O I I I I/O O I/O I/O I/O I/O I/O O I
Description Left Channel Input Left Bass Control Pin 1 A capacitor is connected between this pin and BL2 Left Bass Control Pin 2 A capacitor is connected between this pin and BL1 Left Treble Control Pin A capacitor is connected between this pin and OUTL Left Channel Output Pin Positive Supply Voltage A capacitor is connected between this pin and GND Ground Select Control Pin Mute Pin The Mute pin can eliminate the noise when mode charging occurs. A capacitor is connected between this pin and GND Cyclic Select Pin Bass Booster Control Input Pin 3D Effect Control Input Pin/Output LED Pin Bass Booster Display 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 Jazz Mode Display & Control Input Pin Right Channel Output 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 Pin 1 A capacitor is connected between this pin and BR2 Right Channel Input Pin
PT2389 V1.5
-4-
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
FUNCTION DESCRIPTION
PT2389 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 is determined by the SEL Pin. Please refer to the table below:
SEL pin
Direct
Low
Description Press Flat keyFlat mode Press Rock keyRock mode Press Pops keyPops mode Press Classic keyClassic mode Press Jazz keyJazz mode
Cyclic *
Floating/High * Press Cyc Key
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.
CYCLIC KEY SELECTION MODE
Press Cyc Power On Flat Mode Rock Mode Press Cyc Pops Mode
Press Cyc
BB Key, 3D Key Control Bass Booster, 3D Effect On or Off
Press Cyc
Jazz Mode
Press Cyc
Classic Mode
After power on, PT2389 is Flat Mode, under this mode, any of the sound selections (Flat, Rock, Pops, Classic, Jazz) may be selected by pressing the CYC Key. BB key and 3D key is the switch of Bass Booster and 3D Effect (Bass Booster and 3D Effect if Off when Power On)
PT2389 V1.5
-5-
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
DIRECT KEY SELECTION MODE
Rock Mode Power On Flat Mode Jazz Mode Classic Mode Pops Mode
Bass Booster 3D Effect Control
After power on, PT2389 is Flat Mode, under this mode, you can directly select the sound selection you like. The Bass Booster Function and 3D Effect can switch On or Off in any mode.
PT2389 V1.5
-6-
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
FREQUENCY RESPONSE
The following figures illustrate the various frequency responses under the various sound selections.
Note: Flat Mode Flat+3D Flat+BB Flat+3D+BB
PT2389 V1.5
-7-
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
Note: Rock Mode Rock+3D Rock+BB Rock+3D+BB
Note: Pops Mode Pops+3D Pops+BB Pops+3D+BB
PT2389 V1.5
-8-
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
Note: Classic Mode Classic+3D Classic+BB Classic+3D+BB
Note: Jazz Mode
PT2389 V1.5
Jazz+3D
-9-
Jazz+BB
Jazz+3D+BB
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
Different sound selections exhibit different frequency gains and different frequency levels. Please refer to the table below.
Mode
Flat Rock Pops Classic Jazz Flat+Bass Booster Rock+Bass Booster Pops+Bass Booster Classic+Bass Booster Jazz+Bass Booster Flat+3D Rock+3D Pops+3D Classic+3D Jazz+3D Flat+BB+3D Rock+ BB+3D Pops+ BB+3D Classic+ BB+3D Jazz+ BB+3D
f=80Hz 3 14 8 8.5 14.5 10 18.5 12.5 13 18.5 7 18 11.5 12 18 14 22.5 16.5 16.5 22.5
Typ. f=1KHz 3 6.5 6 7 7.5 5 7 6.5 7 7.5 7 10 9.5 9.5 10.5 8.5 10.5 10 10.5 11
f=10KHz 3 12.5 12.5 7.5 10.5 4 12.5 12.5 8 10.5 7 16 16 11 14 7.5 16.5 16 11 14
Unit
dB
PT2389 V1.5
- 10 -
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
TREBLE AND BASS ADJUSTMENT
It is general knowledge that different individuals have different listening preferences. The application circuit of PT2389 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 -- OUTL pins and TR -- OUTR pins. Please refer to the diagram below. 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 8dB, different capacitor values exhibit different frequency responses. Capacitor value 1800 pF has a lower frequency gain response than 1200 pF capacitor.
1800pF 1500pF 1200pF
Hz
TL - OUTL Capacitors vs. Frequency Response
Note: 1200pF 1500pF 1800pF
PT2389 V1.5
- 11 -
July, 2006
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5-Mode Preset Equalizer IC with Bass Booster & 3D Effect BASS ADJUSTMENT
PT2389
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 smaller the capacitor value, the frequency response curve shifts the opposite direction. Please refer to the diagram below.
0.056F 0.068F 0.1F
HZ
BL1 - BL2 Capacitor vs. Frequency Response Curve
Note: 0.1F 0.068F 0.056F
PT2389 V1.5
- 12 -
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
Unit V V
ABSOLUTE MAXIMUM RATINGS
Parameter Supply voltage Operating temperature Storage temperature Input voltage Symbol Vcc Topr Tstg Vi Ratings 12 -40 ~ +85 -65 ~ +150 -0.3 ~ Vcc+0.3
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Vcc=9V, Vi=1Vrms, f=1KHz, Temp=27) Parameter Symbol Conditions Min. Operating voltage Vcc 5 Operating current Icc Vcc=9V, Vi=0V Flat Mode Max. output voltage VOM Vcc=9V Vcc=9V, Vi=0V Output noise VNO BW=2020KHz A-Weighting Vcc=9V, Vi=0.2Vrms Total harmonic distortion THD BW=2020KHz Input impedance RIN Vcc=9V 70 Output impedance ROUT Vcc=9V High level input voltage VIH Vcc=9V Low level input voltage VIL Vcc=9V 0.3Vcc Vcc=9V, Max. input voltage VIMAX Flat Mode, BB & 3D off
Typ. 9 20
-90
Max. 10
2.5 -98 0.01
Unit V mA Vrms
dB % K V V Vrms
100 40
140 80 0.7Vcc 2.0
PT2389 V1.5
- 13 -
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
APPLICATION CIRCUIT
DIRECT KEY MODE
IN_L
+
1
0.068
INL BL1 BL2 TL OUTL VCC Bias GND SEL
INR 24 BR1 23 BR2 22 TR 21 OUTR 20
0.068 1500p
+
Vcc IN_R
2 3 4
1500p
5.6K OUT_L VCC
5.6K 1500p
4.7K OUT_R
+
1500p
5 6
+
PT2389
Jazz 19 Classic 18 Pops 17 Rock 16 Flat 15 BLED 14 3D 13
LED
+
10K 100 47
Jazz Classic Pops Rock
Flat
+
7 8 9
10K
10 Mute 11 Cyc 12 BB
BB
3D
470
Note: Please use 1500pF, 0.068F Mylar Capacitor
PT2389 V1.5
- 14 -
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
CYCLIC KEY MODE
IN_L
+
0.068 5.6K
1 2 3 4
1500p
INL BL1 BL2 TL OUTL VCC Bias GND SEL
INR 24 BR1 23 BR2 22 TR 21 OUTR 20
0.068 1500p
+
IN_R
5.6K 1500p
OUT_L VCC
+
1500p
5 6
+
OUT_R
PT2389
Jazz 19 Classic 18 Pops 17 Rock 16 Flat 15 BLED 14 3D 13
LED 10K
+
10K 100 47
+
7 8 9
VCC
Cyc BB
10 Mute 11 Cyc 12 BB
4.7K
3D
470
Note: Please use 1500pF, 0.068F Mylar Capacitor
PT2389 V1.5
- 15 -
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
Top Code PT2389 PT2389-S PT2389-SN
ORDER INFORMATION
Valid Part Number PT2389 PT2389-S PT2389-SN Package Type 24 Pins, DIP, 300mil 24 Pins, SOP, 300mil 24 Pins, SSOP, 150mil
PT2389 V1.5
- 16 -
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
PACKAGE INFORMATION
24 PINS, DIP, 300MIL
PT2389 V1.5
- 17 -
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
Symbols A A1 A2 b b1 b2 b3 c c1 D D1 E E1 e eA eB eC L Min.
0.015 0.115 0.014 0.014 0.045 0.030 0.008 0.008 1.160 0.005 0.300 0.240
PT2389
Max. 0.210
0.195 0.022 0.020 0.070 0.045 0.014 0.011 1.195 0.325 0.280 0.430 0.060 0.150
Nom.
0.130 0.018 0.018 0.060 0.039 0.010 0.010 1.185 0.310 0.250 0.100 bsc. 0.300 bsc. 0.130
0.000 0.115
Notes: 1. All dimensions are in INCHES. 2. Dimensioning and tolerancing per ANSI Y 14.5-1982. 3. Dimension "A", "A1" and "L" are measured with the package seated in JEDEC Seating Plane Gauge GS-3. 4. "D", "D1" and "E1" dimensions do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.010 inch. 5. "E" and "eA" measured with the leads constrained to be perpendicular to datum -c- . 6. "eB" and "eC" are measured at the lead tips with the leads unconstrained. 7. N is the number of terminal positions. (N=24) 8. Pointed or rounded lead tips are preferred to ease insertion. 9. "b2" and "b3" maximum dimensions are not include dambar protrusions. Dambar protrusions shall not exceed 0.010 inch (0.25mm) 10. Distance between leads including Dambar protrusions to be 0.005 inch. minimum. 11. Datum plane -H- coincident with the bottom of lead, where lead exits body. 12. Refer to JEDEC MS-001, Variation BE.
JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT2389 V1.5
- 18 -
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
24 PINS, SOP, 300MIL
Symbols A A1 B C D E e H h L
Min. 2.35 0.10 0.33 0.23 15.20 7.40
10.00 0.25 0.40 0
Nom.
Max. 2.65 0.30 0.51 0.32 15.60 7.60
10.65 0.75 1.27 8
1.27 bsc.
PT2389 V1.5
- 19 -
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
Notes: 1. Dimensioning and tolerancing per ANSI Y 14.5-1982. 2. Dimension "D" does not include mold flash, protrusions or gate burrs. Mold Flash, protrusion or gate burrs shall not exceed 0.15mm (0.006 in)per side. 3. Dimension "E" does not include interlead flash protrusions. Interlead flash or protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. The chamfer on the body is optional. It is not present, a visual index feature must be located within the crosshatched area. 5. "L" is the length of the terminal for soldering to a substrate. 6. "N" is the number of terminal position. (N=24) 7. The lead width "B" as measured 0.36 mm (0.014 in) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.24 in). 8. Controlling dimension: MILLIMETER. 9. Refer to JEDEC MS-013, Variation AD. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT2389 V1.5
- 20 -
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
24 PINS, SSOP, 150MIL
PT2389 V1.5
- 21 -
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
PT2389 V1.5
- 22 -
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
Symbol A A1 A2 b b1 c c1 D E E1 e L L1 L2 R R1 1 2 aaa bbb ccc ddd eee Min. Nom. Max. 0.053 0.069 0.004 0.010 0.049 0.065 0.008 0.012 0.008 0.010 0.011 0.006 0.010 0.006 0.008 0.009 0.341 BSC. 0.236 BSC. 0.154 BSC. 0.025 BAS. 0.016 0.050 0.041 REF. 0.010 BAS. 0.003 0.003 0 8 5 15 0 0.004 0.008 0.004 0.007 0.004
PT2389
PT2389 V1.5
- 23 -
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
Notes: 1. Dimensioning and tolerancing per ANSI Y14.5M-1982. 2. Dimensions in inches (angles in degrees) 3. Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed 0.006" per end. Dimension E1 does not include interlead flash or protrusions. Interlead flash or protrusions shall not exceed "0.006" per side. D1 and E1 dimensions are determined at dutum H. 4. The package top may be smaller than the package bottom. Dimensions D and E1 are determined at the outermost extremes of the plastic body exclusive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic. 5. Datums A and B to be determined at datum H. 6. N is the maximum number of terminal position. (N=24) 7. The dimensions apply to the flat section of the lead between 0.004 to 0.010 inches from the lead tip. 8. Dimension b does not include dambar protrusion. Allowable dambar protrusion shall be 0.004" total in excess of b dimension at maximum material condition. The dambar can not be located on the lower radius of the foot. 9. Refer to JEDEC MO-137 variation AE. JEDEC is the registered trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
PT2389 V1.5
- 24 -
July, 2006

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