PT2307L 데이터 시트보기 (PDF) - Princeton Technology

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PT2307L

1W Audio Power Integration Amplifier

Princeton Technology 

1W Audio Power Integration Amplifier

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT2307

DESCRIPTION

The PT2307 is an integrated audio power amplifier utilizing CMOS Technology. In the input section 2

microphone and 2 stereo audio inputs are supported, and also provides a stereo earphone output and

a 1W low noise mono power amplifier for speaker out. The earphone output could be selected in dual

mode (A or B) for various applications. The major functions is controlled via the I2C bus such like wide

range volume control (0dB ~ -90dB), and the earphone output volume could fine tuning (0dB ~ -10.5dB)

to matching the speaker output volume.

FEATURES

z 1W (8Ω) mono channel speaker output + stereo earphone driver

z Digital volume control

- Main volume: 32 steps/0dB ~ -90dB

- Earphone volume: 8 steps/0dB ~ -10.5dB

z 2 microphone inputs, 1 microphone output

z 2 stereo audio inputs, selected via I2C bus

z Output coupling capacitor-free earphone output (PT2307-A)

z Dual earphone output mode (A/B) Integrated. (PT2307-A or PT2307-B)

z Mute function

z Shutdown (power save) mode

z I 2C register keeps the last status when the shutdown active

z Each section can be turn off individually for most power saving

z Over Temperature protection

z Very low pop noise in mode changed

z Wide operating voltage: 2V ~ 6V

z Available in 24 Pins TSSOP

APPLICATIONS

z PDA

z Portable mini audio system

z Multimedia audio household appliances system

PT2307 V1.0

-1-

September, 2004

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