Datasheet MAX97220AETE+ - Maxim Audio Amplifiers DirectDrive LDriver Headphone Amplifier — Ficha de datos

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Manufacturer: Maxim

Description: Audio Amplifiers DirectDrive LDriver Headphone Amplifier

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MAX97220A­MAX97220E Differential Input DirectDrive Line Drivers/Headphone Amplifiers
General Description
The MAX97220_ is a differential input 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 internally 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 applications. The IC has exceptional THD+N over the full audio bandwidth. Two versions of the IC are available with different turnon 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 powersupply input, creating a negative rail. T

Specifications:

• Common Mode Rejection Ratio (Min): 70 dB
• Maximum Power Dissipation: 1.667 W
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.5 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Output Power: 125 mW x 2 at 32 Ohm
• Output Type: 2-Channel Headphone
• Package / Case: TQFN-16
• Packaging Type: Tube
• Product: Class-AB
• Supply Current: 5.5 mA
• THD plus Noise: 0.0035 %
• RoHS: Yes