PT2307(2006) Ver la hoja de datos (PDF) - Princeton Technology
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PT2307 Datasheet PDF : 4 Pages
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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 integration audio power amplifier IC utilizing advanced CMOS technology.
Supports 2 mono MIC input and 2 stereo line input, input gain of each amp can be set individually to
meet customers’ needs. Built-in digital controlled volume has 32 steps from 0dB ~ -90dB, the
headphone volume control has 8 steps ranging from 0dB ~ -10.5dB which can be further attenuate
from the main volume. All functions can be controlled via I2C bus. In the output section, the PT2307 is
equipped with both stereo headphone driver and mono speaker amp maximum output up to 1 watt.
The PT2307 also equipped “Energy Save” power management systems; user can turn off the unused
portion to minimize total power consumption for extended battery endurance. For different applications,
the headphone section of the PT2307 has two mode types for different purposes, A-type (Output
Capacitor-less) or B-type (Output with Capacitor).
FEATURES
• 1W (8Ω) mono channel speaker output + stereo headphone driver
• Digital controlled volume
• Main volume: 32 steps/0dB ~ -90dB
• Headphone volume: 8 steps/0dB ~ -10.5dB
• 2 microphone inputs, 1 microphone output
• 2 stereo audio inputs, selected via I2C bus
• Dual headphone output mode Integrated. (PT2307-A or PT2307-B)
• Mute function
• Shutdown (power save) mode
• I2C register keeps the last status when the shutdown active
• Each section can be turn off individually for most power saving
• Over Temperature protection
• Very low pop noise when mode changed
• Wide operating voltage: 2V ~ 6V
• Available in 24 Pins TSSOP
APPLICATIONS
• PDA
• Portable mini audio system
• Multimedia audio household appliances system
• Electronic Dictionary
• Translator
• GPS
PT2307 V1.2
-1-
April, 2006
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