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PT2308L Headphone Driver Chip

The document describes the PT2308L headphone driver chip. It is a Class AB stereo headphone driver utilizing CMOS technology, designed for portable digital audio applications. It has low power consumption, wide temperature range, high signal to noise ratio, low distortion, and can operate from a single or dual power supply. The document provides details on its features, applications, pin configuration, and application circuits.

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83 views4 pages

PT2308L Headphone Driver Chip

The document describes the PT2308L headphone driver chip. It is a Class AB stereo headphone driver utilizing CMOS technology, designed for portable digital audio applications. It has low power consumption, wide temperature range, high signal to noise ratio, low distortion, and can operate from a single or dual power supply. The document provides details on its features, applications, pin configuration, and application circuits.

Uploaded by

alephzero
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Tel : 886-2-66296288

Fax: 886-2-29174598
URL: http://www.princeton.com.tw

Headphone Driver PT2308L

DESCRIPTION
PT2308L is a Class AB stereo headphone driver chip utilizing CMOS Technology specially designed for
portable digital audio applications. It is housed in an 8-pin DIP or SO package and is functionally
compatible with TDA1308. Pin assignments and application circuit are optimized for lower cost effec-
tiveness and easy PCB Layout

FEATURES
• CMOS Technology
• Low Power Consumption
• Wide Temperature Range
• Excellent Power Supply Ripple Rejection
• High Signal-to-Noise Ratio, S/N=110dB
• Low Harmonic Distortion, THD= 0.001%
• Large Output Voltage Swing
• Low Supply Voltage Available (VDD=2V)

APPLICATIONS
• Portable Digital Audio
• Hi-fi Audio System
• Walkman
• CD-ROM

PT2308L v 1.0 Page 1 Updated Oct.. 1999


Tel : 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw

Headphone Driver PT2308L

PIN CONFIGURATION

PT2308L

PT2308L v 1.0 Page 2 Updated Oct. 1999


Tel : 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw

Headphone Driver PT2308L

APPLICATION CIRCUITS

PT2308L Application Circuit (Single Power Supply)


VDD

3.9K 100uF
+
VOUT1

RL
10uF + 10K
3.9K 1 8
2
VIN1 -
+

PT2308L
3
VREF

+
5
+ 100uF
VIN2 -
6 7 4
+
10uF 3.9K

VOUT2
3.9K
100uF RL
10K

PT2308L v 1.0 Page 3 Updated Oct.. 1999


Tel : 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw

Headphone Driver PT2308L

PT2308L Application Circuit (Dual Power Supply)

VDD+
+
100µF

3.9K
8
10K
3.9K
2
_ 1 +
3 VOUT1
+
100µF

5
+ 7 +
6 VOUT2
_
100µF
3.9K
10K
4
+
3.9K 100µF
VSS-

ORDER INFORMATION

Valid Part N umber Package


PT2308L 8 P ins, D IP (300 mil)
PT2308L-S 8 P ins, S O (150 mil)

PT2308L v 1.0 Page 4 Updated Oct. 1999

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