Features and Benefits
- Second-Generation DirectDrive Technology
- Dynamic, Class H, Dual Mode Charge Pump
- Low Voltage Operation, VPVIN = 1.8V
- Low Quiescent Current, 1.15mA (typ) at VPVIN = 1.8V
- Eliminates Large Output DC-Blocking Capacitors
- Industry-Leading Click-and-Pop Performance
- High-Fidelity, SNR 105dB (5.6µV Output Noise)
- Output Power 34mW into 32Ω (THD+N 1%)
- Output Power 45mW into 16Ω (THD+N 10%)
- Tiny, 12-Bump, 1.27mm x 1.65mm (0.4mm Lead Pitch) WLP Package
The MAX97200 is a 45mW Class H headphone amplifier that runs from a single low 1.8V supply voltage and employs Maxim's second-generation DirectDrive® technology.
The MAX97200 features a Dual Mode™ internal charge pump to generate the power rails for the amplifier. The charge-pump output can be ±PVIN/2 or ±PVIN depending on the amplitude of the output signal. When the output voltage is low, the power-supply voltage is ±PVIN/2. When the output signal demands larger output voltage, the charge pump switches modes so that a greater power-supply voltage is realized and more output power can be delivered to the load.
Second-generation DirectDrive technology improves power consumption when compared to first-generation DirectDrive amplifiers. The MAX97200 can be powered from a regulated 1.8V and have similar power consumption to a traditional DirectDrive amplifier that is powered from 0.9V.
Maxim's DirectDrive architecture uses an inverting charge pump to derive a negative voltage supply. The headphone amplifier is powered between the positive supply and the generated negative rail. This scheme allows the audio output signal to be biased about ground, eliminating the need for large DC-blocking capacitors between the amplifier output and the headphone load.
Low-output offset voltage provides very good click-and-pop performance both into and out of shutdown. High signal-to-noise ratio maintains system fidelity.
The MAX97200 is available in a tiny, 12-bump wafer level packaging (WLP 1.27mm x 1.65mm) with a small, 0.4mm lead pitch and specified over the -40°C to +85°C extended temperature range.
- Cellular Phones
- MP3 Players
- VoIP Phones
Markets and Technologies
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The MAX97200A evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX97200A. The MAX97200A is a 20mW Class G headphone amplifier that employs Maxim's second-generation DirectDrive® technology.
The MAX97200A EV kit provides 3dB gain, is powered from a 1.8V single power supply, and includes a shutdown input. The MAX97200A EV kit also evaluates the MAX97200B. Request a free MAX97200B IC sample from the factory when ordering the MAX97200B EV kit.
- Cellular Phones
- MP3 Players
- VoIP Phones
Features & Benefits
- 1.8V Single-Supply Operation
- 20mW Class G Headphone Amplifier
- 3dB Gain
- Low-Quiescent Current, 1.15mA at PVIN = 1.8V
- Low-Power Shutdown Input
- Evaluates the MAX97200B (with IC Replacement)
- Fully Assembled and Tested
Documentation & Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|MAX97200AEWC+||Material Declaration||Reliability Data||12-WLCSP-N/A|
|MAX97200AEWC+T||Material Declaration||Reliability Data||12-WLCSP-N/A|
|MAX97200BEWC+||Material Declaration||Reliability Data||12-WLCSP-N/A|
|MAX97200BEWC+T||Material Declaration||Reliability Data||12-WLCSP-N/A|
|Wafer Fabrication Data|
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.