Maxim Integrated (MAX97220BETE+T) Differential Input Direct Line Drive

Product OverviewThe MAX97220BETE+T is a differential input DirectDrive line drivers/headphoneamplifier in 16 pin TQFN package. This device is capable of driving line levelloads with 3VRMS into 1Kohm with a 5V supply and 2VRMS into 600 ohm loads from a3.3V supply. A headphone load is capable of being driven with 125mW into 32ohmwith a 5V supply. The IC is offered with an externally set gain through externalresistors. The external gain setting nodes can also be used to configure filtersfor set-top box applications. The IC has exceptional THD+N over the full audiobandwidth. It is used for set top box applications, feature a 130ms tON. Anon-chip charge pump inverts the power supply input, creating a negative rail.The output stage of the amplifier is powered between the positive input supplyand the output of the charge pump. The bipolar supplies bias the output aboutground, eliminating the need for large, distortion-introducing output couplingcapacitors.Supply voltage range is 2.5V to 5.5VOperating temperature range from -40°C to 85°CFully differential inputsIC powers on and off without clicks or popsDirectDrive outputs eliminate DC blocking capacitorsFlat THD+N better than 90dB in the audio band18bit SNR performance is 112dBApplicationsSignal Processing, Portable Devices, MultimediaProduct InformationDevice Type: Line DriverIC Interface Type: -Supply Voltage Min: 2.5VSupply Voltage Max: 5.5VDriver Case Style: TQFNNo. of Pins: 16PinsOperating Temperature Min: -40°COperating Temperature Max: 85°CProduct Range: -MSL: MSL 1 - Unlimited