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[China]
Address: 5C,Building D,GALAXY WORLD.Longhua District, Shenzhen.CN
Contact name:Walton-cara
Walton Electronics Co., Ltd. |
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MAX9722AEUE+ Audio Amplifiers GRM188R60J106ME47D DTA144GUT106 MAX9722 Headphone Amplifiers
General Description
The MAX9722A/MAX9722B stereo headphone amplifiers are designed for portable equipment where board space is at a premium. The MAX9722A/MAX9722B use a unique DirectDrive architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, which saves cost, board space, and component height. Additionally, the gain of the amplifier is set internally (-2V/V, MAX9722B) or adjusted externally (MAX9722A). The MAX9722A/MAX9722B deliver up to 70mW per channel into a 16Ω load or 130mW into a 32Ω load and have low 0.009% THD+N. An 80dB at 217Hz power-supply rejection ratio (PSRR) allows these devices to operate from noisy digital supplies without an additional linear regulator. The MAX9722A/MAX9722B include ±8kV ESD protection on the headphone outputs. Comprehensive anticlick-and-pop circuitry suppresses audible clicks and pops on startup and shutdown. A low-power shutdown mode reduces the supply current to 0.1µA. The MAX9722A/MAX9722B operate from a single 2.4V to 5.5V supply, consume only 5.5mA of supply current, feature short-circuit and thermal-overload protection, and are specified over the extended -40°C to +85°C temperature range. The devices are available in tiny 16-pin thin QFN (3mm ✕ 3mm ✕ 0.8mm) and 16-pin TSSOP packages.
Features
♦ 2.4V to 5.5V Single-Supply Operation
♦ High PSRR (80dB at 217Hz) Eliminates LDO
♦ No Bulky DC-Blocking Capacitors Required
♦ Ground-Referenced Outputs Eliminate DC Bias Voltage on Headphone Ground Pin
♦ No Degradation of Low-Frequency Response Due to Output Capacitors
♦ Differential Inputs for Enhanced Noise Cancellation
♦ Adjustable Gain (MAX9722A) or Fixed -2V/V Gain (MAX9722B)
♦ 130mW per Channel into 32Ω
♦ Low 0.009% THD+N
♦ Integrated Click-and-Pop Suppression
♦ Low Quiescent Current (5.5mA)
♦ Short-Circuit and Thermal-Overload Protection
♦ ±8kV ESD-Protected Amplifier Outputs (Human Body Model)
♦ Available in a Space-Saving 16-Pin Thin QFN (3mm ✕ 3mm ✕ 0.8mm) Package
| Product Category: | Audio Amplifiers |
| MAX9722 | |
| Headphone Amplifiers | |
| Class-AB | |
| 130 mW | |
| SMD/SMT | |
| 2-Channel Headphone | |
| TSSOP-16 | |
| 32 Ohms | |
| 0.009 % | |
| 5.5 V | |
| 2.4 V | |
| - 40 C | |
| + 85 C | |
| Tube | |
| CMRR - Common Mode Rejection Ratio: | - 60 dB |
| Ib - Input Bias Current: | 50 nA |
| Operating Supply Current: | 5.5 mA |
| Operating Supply Voltage: | 2.4 V to 5.5 V |
| Pd - Power Dissipation: | 755 mW |
| Product Type: | Audio Amplifiers |
| PSRR - Power Supply Rejection Ratio: | - 90 dB |
| Factory Pack Quantity: | 96 |
| Subcategory: | Audio ICs |
| Supply Type: | Single |
| Vos - Input Offset Voltage: | 0.5 mV |
| Part # Aliases: | MAX9722 |
| Unit Weight: | 0.006102 oz |
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Company Advantages
1. We can offer products according to customer's BOM list. One stop purchase.
2. All kinds of chips, various types and complete brands.
3.More than 15years for sales original IC parts.
4. Comprehensive customer service: from customer consultation to after sales service.
5. Walton can offer sample for free , but client have to pay shipping cost. Contact us if needed.
Professional consultation: Hanna
Contact Number/Whatsapp: +86-199 2879 8470
Skype :walton-sales5@walton-ic.com
Email: walton-sales5@walton-ic.com
