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Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
DESCRIPTION
PT2387 is a 3D Effect Audio Processor IC utilizing CMOS Technology. It features a specially designed PTC HRTFs Filter and space-enhanced circuit, thereby, guaranteeing excellent audio quality and performance. Least external components, excellent 3D effect audio output, built-in LED display driver add to the enhanced quality of PT2387. Pin assignments and application circuit are optimized for easy PCB Layout and cost saving benefits.
FEATURES
* * * * * * * CMOS technology Operating voltage range: 5V to 9 V THD=N<0.01%, S/N>95dB Specially designed PTC HRTFs filter technology and 3D space-enhanced circuit Least external components Built-in LED display driver Available in 8 Pins, DIP or SOP
APPLICATIONS
* * * * * * * * Multi-media audio Car audio Walkman Home stereo TV PC speakers Notebook Computer/Laptop Other audio equipment
PT2387 V1.4
-1-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
BLOCK DIAGRAM
B y P as s Sw 1 To 3D C ont rol
R IN
-1
PTC 'HRTFs
-1
3 D R O UT
LIN
+1
PTC 'HRTFs
3D LO U T
B y P as s Sw 2
3D Con trol
PT2387 V1.4
-2-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
PIN CONFIGURATION
VRE F GND 3D ROUT 1 2 8 7 VCC LOUT LIN RIN
PT238 7
3 4 6 5
PIN DESCRIPTION
Pin Name VREF GND 3D ROUT RIN LIN LOUT VCC I/O O I O I I O Description 1/2 VCC Connect capacitor to GND Ground Pin 3D Effect Control Pin Right Channel Output Pin Right Channel Input Pin Left Channel Input Pin Left Channel Output Pin Positive Power Supply Pin No. 1 2 3 4 5 6 7 8
PT2387 V1.4
-3-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
FUNCTION DESCRIPTION
The 3D effect of PT2387 is controlled by Pin No.3 (3D pin) via a TACT Switch which is triggered when connected to Vcc ("High"). Please refer to the diagram below.
Power On
By Pass
3D Surround
Trigger On/Off Cycle
Press 3D key
LED DISPLAY DRIVER
PT2387 has a built-in LED driver which is used to display the 3D activity status. Please refer to the table below.
3D/Surround Effect OFF LED Display OFF
3D/Surround Effect ON LED Display ON
PT2387 V1.4
-4-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
ABSOLUTE MAXIMUM RATING
Parameter Positive power supply Input voltage Operating temperature Storage temperature Symbol VCC Vi Topr Tstg Ratings 12 0.3 to VCC+0.3 -40 ~ +85 -65 ~ +150 Unit V V
DC ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, VCC=9V, Vi=1Vrms, f=1KHz, Ta=27) Parameter Symbol Condition Min. Operating voltage VCC 5 Vcc=9V, Vi=0V, Operating current ICC Bypass Mode Maximum output voltage VOM Vcc=9V Vcc=9V, Vi=0V, Output noise voltage VON BW=20 to 20KHz, A-weighting Vcc=9V, Vi=0.2Vrms, Total harmonic distortion THD BW=20 to 20KHz, Bypass Mode Input impedance RIN Vcc=9V Output impedance ROUT Vcc=9V High level input voltage VIN Vcc=9V Low level input voltage VIL Vcc=9V 0.3VCC Vcc=9V, Maximum input voltage VIMAX Bypass Mode
Typ. 9
20 -90
Max. 10
2.5 -
Unit V
mA Vrms dB
100 40 -
0.05 80 0.7VCC 2.0
% K V V Vrms
PT2387 V1.4
-5-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
APPLICATION CIRCUIT
9V
+
9V
1
47 f
VREF GND 3D
VCC LOUT LIN
8 7 6 5
+
10 f
0.1
+
100 f
2 3
0.1 f
3D KEY
LIN
470 LED
4 PT2387
10 f
+
RIN
10 + f 10 + f
LOUT
ROUT
PT2387 V1.4
-6-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
ORDER INFORMATION
Valid Part Number PT2387 PT2387-S Package Type 8 Pins, DIP, 300mil 8 Pins, SOP, 150mil Top Code PT2387 PT2387-S
PT2387 V1.4
-7-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
PACKAGE INFORMATION
8 PINS, DIP, 300MIL
PT2387 V1.4
-8-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
Symbol 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 0.355 0.005 0.300 0.240
0.000 0.115
PT2387
Nom. 0.130 0.018 0.018 0.060 0.039 0.010 0.010 0.365 0.310 0.250 0.100 bsc. 0.300 bsc. 0.130 Max. 0.210 0.195 0.022 0.020 0.070 0.045 0.014 0.011 0.400
0.325 0.280 0.430 0.060 0.150
Notes: 1. Controlling Dimensions: INCHES. 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Symbols are defined in the "MO Series Symbol LIST" in Section 2.2 of Publication No.95. 4. Dimension A, A1 and L are measured with the package seated in JEDEC Seating Plane Gauge GS-3. 5. D, D1 and E1 dimensions do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.010 inch. 6. E and eA measured with the leads constrained to be perpendicular to data -c- . 7. eB and eC are measured at the lead tips with the leads unconstrained. 8. N is the number of leads (N=8) 9. Pointed or rounded lead tips are preferred to ease insertion. 10. b2 and b3 maximum dimensions do not include dambar protrusions. Dambar protrusions shall not exceed 0.010 inch (0.25mm) 11. Variation BA has a b3 dimension and is 1/2 lead package. 12. Distance between the leads including dambar protrusions to be 0.005 inch minimum. 13. Datum plane -H- coincident with the bottom of lead, where lead exits the body. 14. Refer to JEDEC MS-001, Variation BA. JEDEC is the registered trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT2387 V1.4
-9-
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
8 PINS, SOP, 150MIL
PT2387 V1.4
- 10 -
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
PT2387
PT2387 V1.4
- 11 -
March, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
3D Effect Audio Processor IC
Symbol A A1 A2 b b1 c c1 D E E1 e L L1 L2 R R1 h 1 2 Min. 1.35 0.10 1.25 0.31 0.28 0.17 0.17 Typ. 4.90 BSC. 6.00 BSC. 3.90 BSC. 1.27 BSC. 1.04 REF. 0.25 BSC. -
PT2387
Max. 1.75 0.25 1.65 0.51 0.48 0.25 0.23
0.40 0.07 0.07 0.25 0 5 0
1.27 0.50 8 15 -
Notes: 1. Dimensioning and tolerancing per ANSI Y 14.5M-1994 2. Controlling Dimension: MILLIMETERS. 3. Dimension D does not include mold flash protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed 0.15 mm (0.006 in) per end. Dimension E1 does not include interlead flash or protrusion. Interlead flash or protrusion shall not exceed 0.25mm per side. D and E1 dimensions are determined at datum 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 body. 5. Datums A & B to be determined at datum H. 6. N is the number of terminal positions. (N=8) 7. The dimensions apply to the flat section of the lead between 0.10 to 0.25mm from the lead tip. 8. Dimension "b" does not include dambar protrusion. Allowable dambar protrusion shall be 0.10mm total in excess of the "b" dimension at maximum material condition. The dambar cannot be located on the lower radius of the foot. 9. This chamfer feature is optional. If it is not present, then a pin 1 identifier must be located within the index area indicated. 10. Refer to JEDEC MS-012, Variation AA. JEDEC is the registered trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT2387 V1.4 - 12 March, 2006

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