MAX97220AETE+T 3W/Ch Stereo Amp 105dB PSRR andgt;100dB SNR 93% Efficient Class D I2C Control Ultra-Low THD+N Tiny 16-TQFN Advanced Click/Pop Suppression

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Features

Output Power 125mW into 32I with a 5V Supply

3VRMS Output Drive into 1kI with a 5V Supply

2VRMS Output Drive into 600I with a 3.3V Supply

Fully Differential Inputs

Fixed or Externally Adjustable Gain with No Clicks or Pops

Wide 2.5V to 5.5V Operating Range

DirectDrive Outputs Eliminate DC-Blocking Capacitors

Flat THD+N, Better Than 90dB in the Audio Band

18-Bit SNR Performance, 112dB

Footprint Compatible with the MAX9722

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Applications

Simple Multimedia Interfaces

Set-Top Boxes

Blu-rayandtrade;andnbsp;and DVD Players

LCD Televisions

Prosumer Audio Devices

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Description

The MAX97220_ is a differential input DirectDriveandreg; line driver/headphone amplifier. This device is capable of driving line level loads with 3VRMS into 1kI with a 5V supply and 2VRMS into 600I loads from a 3.3V supply. A headphone load is capable of being driven with 125mW into 32I with a 5V supply. The IC is offered with an inter nally fixed 6dB gain or an externally set gain through external resistors. The external gain setting nodes can also be used to configure filters for set-top box applica tions. The IC has exceptional THD+N over the full audio bandwidth.

Two versions of the IC are available with different turn on times (tON). The A, C, and E versions for headphone applications feature a tON of 5.5ms while the B and D versions, intended for set-top-box applications, feature a 130ms tON. An on-chip charge pump inverts the power supply input, creating a negative rail. The output stage of the amplifier is powered between the positive input sup ply and the output of the charge pump. The bipolar sup plies bias the output about ground, eliminating the need for large, distortion-introducing output coupling capaci tors. The IC powers on and off without clicks or pops. The IC is available in a 3mm x 3mm x 0.8mm, 16-pin TQFN and is specified over the extended -40NC to +85NC temperature range.

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INFORMATION

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Drawing

Our advantage :phones, PDAand#39;s, notebook comput.ers

• High quality products --- our offers are 100% new and original, ROHS
• Competitive price --- good Purchase channels with good price.
• Professional service --- strict quality testing before the shipment, and perfect after-sales service after the purchase.
• Adequate inventory --- With the support of our strong Purchasing team,
• Fast delivery --- we will ship the goods within 1-3 working days after the payment confirmed.

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