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SA58670A Datasheet (PDF) - NXP Semiconductors

SA58670A Datasheet PDF - NXP Semiconductors
Part No. SA58670A
Download  SA58670A Click to view

File Size   169.03 Kbytes
Page   24 Pages
Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors
Description 2.1 W/channel stereo class-D audio amplifier

SA58670A Datasheet (PDF)

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SA58670A Datasheet PDF - NXP Semiconductors

Part No. SA58670A
Download  SA58670A Click to view

File Size   169.03 Kbytes
Page   24 Pages
Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors
Description 2.1 W/channel stereo class-D audio amplifier

SA58670A Datasheet (HTML) - NXP Semiconductors

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SA58670A Product details

General description
The SA58670A is a stereo, filter-free class-D audio amplifier which is available in an HVQFN20 package with the exposed Die Attach Paddle (DAP).
The SA58670A features independent shutdown controls for each channel. The gain may be set at 6 dB, 12 dB, 18 dB or 24 dB with gain select pins G0 and G1. Improved immunity to noise and RF rectification is increased by high PSRR and differential circuit topology. Fast start-up time and small package makes it an ideal choice for both cellular handsets and PDAs.
The SA58670A delivers 1.4 W/channel at 5.0 V and 720 mW/channel at 3.6 V into 8 Ω. It delivers 2.1 W/channel at 5.0 V into 4 Ω. The maximum power efficiency is excellent at 70 % to 74 % into 4 Ω and 84 % to 88 % into 8 Ω. The SA58670A provides thermal and short-circuit shutdown protection.

Features
■ Output power:
   ◆ 2.1 W/channel into 4 Ω at 5.0 V
   ◆ 1.4 W/channel into 8 Ω at 5.0 V
   ◆ 720 mW/channel into 8 Ω at 3.6 V
■ Supply voltage: 2.5 V to 5.5 V
■ Independent shutdown control for each channel
■ Selectable gain: 6 dB, 12 dB, 18 dB and 24 dB
■ High SVRR: −77 dB at 217 Hz
■ Fast start-up time: 3.5 ms
■ Low supply current
■ Low shutdown current
■ Short-circuit and thermal protection
■ Space savings with 4 mm × 4 mm HVQFN20 package
■ Low junction to ambient thermal resistance of 24 K/W with exposed DAP

Applications
■ Wireless and cellular handset and PDA
■ Portable DVD player
■ USB speaker
■ Notebook PC
■ Portable radio and gaming



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