MAX4411 Maxim Integrated Products, MAX4411 Datasheet
MAX4411
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MAX4411 Summary of contents
Page 1
... Additionally, the gain of the amplifier is set internally (-1.5V/V, MAX4411 and -2V/V, MAX4411B), further reducing component count. The MAX4411 delivers up to 80mW per channel into a 16Ω load and has low 0.003% THD+N. An 86dB at 217Hz power-supply rejection ratio (PSRR) allows this device to operate from noisy digital supplies without an additional linear regulator. The MAX4411 includes ± ...
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... V IL SON OSC MAX4411 A V MAX4411B ΔA V MAX4411 V Input AC-coupled OS MAX4411B R IN 1.8V ≤ V ≤ 3.6V (Note 2) MAX4411 f RIPPLE V = 3.0V, 200mV DD P-P f ripple, MAX4411 RIPPLE (Note 3) f RIPPLE ...........................Continuous DD = +70° ∞ 1µ MIN MIN TYP MAX 1.8 3.6 3 ...
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... OUT 0.001 10 100 1k 10k FREQUENCY (Hz) _______________________________________________________________________________________ , 2.2µ +25°C.) (Note 1) A CONDITIONS 1.8V ≤ V ≤ 3.6V (Note 2) MAX4411B PSRR f RIPPLE V = 3.0V, 200mV DD P-P ripple, MAX4411B f RIPPLE (Note 3) f RIPPLE THD+N ≤ OUT T = +25° 50mW THD 1kHz 60mW R = 32Ω ...
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Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown ( 2.2µF, THD+N measurement bandwidth = 22Hz to 22kHz, T TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 1. 32Ω L 0.1 P ...
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Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown ( 2.2µF, THD+N measurement bandwidth = 22Hz to 22kHz, T TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 100 V = 1.8V DD OUTPUTS 16Ω ...
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Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown ( 2.2µF, THD+N measurement bandwidth = 22Hz to 22kHz, T OUTPUT POWER vs. SUPPLY VOLTAGE 200 f = 1kHz IN 180 R = 16Ω L INPUTS 180° 160 ...
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Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown ( 2.2µF, THD+N measurement bandwidth = 22Hz to 22kHz, T POWER DISSIPATION vs. OUTPUT POWER 180 INPUTS IN PHASE 160 140 INPUTS 180° 120 OUT OF PHASE 100 ...
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... Active-Low Left-Channel Shutdown. Connect to V Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and oscillator. Connect to positive supply (1.8V to 3.6V). Exposed Paddle. Leave unconnected. Do not connect to any voltage including GND POWER-UP/DOWN WAVEFORM MAX4411 toc41 10mV/div -100dB 20dB/div 200ms/div FFT: 25Hz/div R = 32Ω ...
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... OUT Figure 1. Conventional Driver Output Waveform vs. MAX4411 Output Waveform Fixed Gain age. This allows the MAX4411 outputs to be biased about GND, almost doubling dynamic range while operating from a single supply. With no DC component, there is no need for the large DC-blocking capacitors. ...
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... Headphone Amplifier with Shutdown MICROPHONE BIAS MICROPHONE AMPLIFIER MICROPHONE AMPLIFIER OUTPUT AUDIO INPUT MAX4411 AUDIO INPUT HEADPHONE DRIVER Figure 2. Earbud Speaker/Microphone Combination Headset Configuration method raises some issues: • The sleeve is typically grounded to the chassis. Using this biasing approach, the sleeve must be isolated from system ground, complicating product design ...
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... In most applications, the output of the preamplifier dri- ving the MAX4411 has a DC bias of typically half the supply. At startup, the input-coupling capacitor is charged to the preamplifier’s DC-bias voltage through ...
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... In reality, the available power lies between these extremes. Powering Other Circuits from a Negative Supply An additional benefit of the MAX4411 is the internally generated, negative supply voltage (PV age provides the ground-referenced output level. PV can, however, also be used to power other devices within a design limit current drawn from PV exceeding this affects the headphone driver operation ...
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... Table 1. Suggested Capacitor Manufacturers SUPPLIER Taiyo Yuden TDK Note: Please indicate you are using the MAX4411 when contacting these component suppliers. output ripple. Likewise, decreasing the ESR of C2 reduces both ripple and output resistance. Lower capacitance values can be used in systems with low maximum output power levels ...
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... IN+ IN- 0.1μF 14 ______________________________________________________________________________________ V DD 0.1μF 0.1μF 15kΩ 1μF 1μF OUT 0.1μF 15kΩ CODEC Q Q SHDNL SHDNR 1μF MAX4411 INL 1μ INR 1μF C1P System Diagram 15kΩ INR OUTR OUTR- DD MAX9710 BIAS SHDN ...
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... SHUTDOWN (A4) CONTROL C1P CHARGE C1 PUMP 1μF 3 (C4) C1N PV SV PGND (D4) (B4) (D3) C2 1μF *MAX4411: 21kΩ, MAX4411B: 28kΩ UCSP BUMPS. ______________________________________________________________________________________ C IN 1μF LEFT CHANNEL AUDIO (B2) (B1) (C1) SHDNL SHDNR INL 14kΩ UVLO/ SV CLICK-AND-POP ...
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... SV OUTL DD UCSP (B16-2) Ordering Information (continued) PART TEMP RANGE MAX4411ETP+ -40°C to +85°C MAX4411BEBE-T -40°C to +85°C MAX4411BEBE+T -40°C to +85°C MAX4411BETP -40°C to +85°C MAX4411BETP+ -40°C to +85°C +Denotes lead-free package. 16 ______________________________________________________________________________________ TOP VIEW C1P DD N.C. SGND PGND SHDNL C1N ...
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Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 4x4 UCSP 1 21-0101 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Package Information (continued) ...