MAX9751 Maxim Integrated Products, Inc., MAX9751 Datasheet
MAX9751
Related parts for MAX9751
MAX9751 Summary of contents
Page 1
... The MAX9750 features an analog volume control, and a BEEP input. The MAX9751 features a 2:1 input multiplexer, allowing multiple audio sources to be selected. All devices feature a single-supply voltage, a shutdown mode, logic- selectable gain, and a headphone sense input. Industry- leading click-and-pop suppression eliminates audible transients during power and shutdown cycles ...
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... Amplifier inputs R IN (Note 2) MAX9751/MAX9755 SON Measured MAX9750A/MAX9750B/ between OUT_+ MAX9751/MAX9755 V OS and OUT_-, MAX9750C T = +25°C A MAX9750A/MAX9750B MAX9750C/MAX9751 4. +25°C) MAX9755 1kHz 200mV RIPPLE P 10kHz 200mV RIPPLE P-P = +70°C, multilayer board) A (θ 1µ 1µF, speaker load DD BIAS ...
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... OUT SNR 22kHz 22Hz to 22kHz, A-weighted sustained oscillations 10kHz Any unselected input to any active input 10kHz (MAX9751), input referred SR GAIN1 = 0, GAIN2 = 0 GAIN1 = 1, GAIN2 = 0 MAX9750A GAIN1 = 0, GAIN2 = 1 GAIN1 = 1, GAIN2 = 1 GAIN1 = 0, GAIN2 = 0 GAIN1 = 1, GAIN2 = 0 MAX9750B GAIN1 = 0, GAIN2 = 1 ...
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... BW = 22Hz to L OUT 22kHz 22Hz to 22kHz sustained oscillations 10kHz Any unselected input to any active input 10kHz (MAX9751), input referred SR IEC air discharge GAIN2 = GAIN = 0, GAIN1 = GAIN2 = GAIN = 1, GAIN1 = X OSC VOL (Note -25dB to +13.5dB ...
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Stereo Audio Power Amplifiers and ELECTRICAL CHARACTERISTICS (continued) = 5V, GND = PGND = CPGND = 0V, SHDN = CPV = HPV terminated between OUT_+ and OUT_-, headphone load terminated ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers (Measurement BW = 22Hz to 22kHz TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (SPEAKER MODE 3Ω 10.5dB V 1 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers (Measurement BW = 22Hz to 22kHz OUTPUT POWER vs. LOAD RESISTANCE (SPEAKER MODE) 3.5 3.0 THD+N = 10% 2.5 2.0 THD 1.5 1.0 0 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers (Measurement BW = 22Hz to 22kHz TURN-OFF RESPONSE (SPEAKER MODE) SHDN OUT_+ AND OUT_- OUT_+ - OUT_ 8Ω L 20ms/div TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers (Measurement BW = 22Hz to 22kHz TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER (HEADPHONE MODE) 1000 32Ω L 100 A = 3dB ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers (Measurement BW = 22Hz to 22kHz HEADPHONE OUTPUT SPECTRUM 0 -20 -40 -60 -80 -100 -120 -140 FREQUENCY (Hz) TURN-OFF RESPONSE (HEADPHONE MODE) SHDN HPOUT_ R ...
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... Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers PIN MAX9750 MAX9751 THIN THIN TSSOP TSSOP QFN QFN 1 5 — — — — 10 10 ...
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... The MAX9750 features an analog volume control, BEEP input, and four-level gain control. The MAX9751 features a 2:1 input stereo multiplexer and two-level gain control. All devices feature high 90dB PSRR, low 0.01% THD+N, industry-leading click-pop performance, and a low- power shutdown mode ...
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... MP3, CD, and DVD players. The MAX9750/MAX9751/MAX9755 feature a low-noise charge pump. The 550kHz switching frequency is well beyond the audio range, and does not interfere with the audio signals. The switch drivers feature a controlled switching speed that minimizes noise generated by turn- on and turn-off transients ...
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... The gain of the device can vary based upon the volt- age at VOL (see the Analog Volume Control (VOL) sec- tion). However, the maximum gain cannot be exceeded. The gain of the MAX9751/MAX9755 is set by the GAIN input. Driving GAIN high sets the gain of the speaker amplifiers to 9dB and the gain of the headphone ampli- fiers to 0dB ...
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... BEEP Input Figure 6. Volume Control Circuit (Figure 8) and the The MAX9751 features a 2:1 input multiplexer on each amplifier, allowing input selection between two stereo is either BEEP(OUT) sources. The logic input IN1/2 controls both multiplex- ers. A logic high selects input IN_1 and a logic low selects input IN_2 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers Table 3A. MAX9750A Volume Levels V (V) VOL GAIN1 = HPV * MIN MAX DD GAIN2 = 0 0 0.49 0.074 0.49 0.5673 0.160 0.5673 0.6447 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers Table 3B. MAX9750B Volume Levels V (V) VOL HPV * MIN MAX DD 0 0.49 0.074 0.49 0.5673 0.160 0.5673 0.6447 0.183 0.6447 0.722 0.207 0.722 0.7994 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers Table 3C. MAX9750C Volume Levels V (V) VOL HPV * MIN MAX DD 0 0.49 0.074 0.49 0.5673 0.160 0.5673 0.6447 0.183 0.6447 0.722 0.207 0.722 0.7994 ...
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... Likewise, during shutdown, the capacitor is discharged to GND shift across the capacitor results, which in turn appears as an audible AUDIO transient at the speaker. Since the MAX9750/MAX9751/ TAPER POT MAX9755 do not require output-coupling capacitors, no audible transient occurs. Additionally, the MAX9750/MAX9751/MAX9755 features extensive click-and-pop suppression that eliminates any audible transient sources internal to the device ...
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... Inputs In/Out of Phase (Headphone Mode) Power Dissipation and Heat Sinking Under normal operating conditions, the MAX9750/ MAX9751/MAX9755 can dissipate a significant amount of power. The maximum power dissipation for each package is given in the Absolute Maximum Ratings under Continuous Power Dissipation, or can be calcu- ...
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... Figure 10 shows the two extreme cases for in and out of phase. In reality, the available power lies between these extremes. The MAX9750/MAX9751/MAX9755 have different sup- plies for each portion of the device, allowing for the opti- mum combination of headroom and power dissipation and noise immunity ...
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... CPV is used by the MAX9750 MAX9751/MAX9755 to provide the negative supply for the headphone amplifiers. It can also be used to power other devices within a design. Current draw from CPV should be limited to 5mA, exceeding this affects the oper- ation of the headphone amplifier. A typical application is a negative supply to adjust the contrast of LCD modules ...
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... Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers MUX MAX9751 ______________________________________________________________________________________ Simplified Block Diagrams (continued) MAX9755 23 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers C IN 1μF INL LEFT-CHANNEL AUDIO INPUT C IN 1μF INR RIGHT-CHANNEL AUDIO INPUT BIAS C BIAS 1μF VOL GAIN1 V DD GAIN2 1μF 47kΩ BEEP SHDN ...
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... Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers 0.1μF MAX9751 (5) 1μF INL1 LEFT CHANNEL AUDIO INPUT C 2 INPUT IN 1μF INL2 (6) MUX LEFT CHANNEL AUDIO INPUT (3) 1μF INR1 RIGHT CHANNEL AUDIO INPUT 28 INPUT C IN MUX 1μF INR2 ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers 1μF INL (6) LEFT CHANNEL AUDIO INPUT 1μF INR (4) RIGHT CHANNEL AUDIO INPUT 21 (25) BIAS C BIAS 1μF 24 (28) GAIN V DD ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers 1μF AUX_IN OUT CODEC 2kΩ MAX4060 BIAS 2kΩ μC 1μF IN+ 1μF IN 5.5V 1μF ______________________________________________________________________________________ 4. 5.5V 0.1μ HPV ...
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... MAX4060 BIAS 2kΩ 1μF IN+ 1μF IN- 28 ______________________________________________________________________________________ System Diagrams (continued) 4.5V TO 5.5V 0.1μ 1μF INL1 CODEC INL2 MAX9751 1μF INR1 OUT INR2 SHDN μC IN1/2 GAIN 3V TO 5.5V CPV DD 1μF C1P 1μF C1N GND PROCESS: BiCMOS 3V TO 5.5V 10μF HPV ...
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... HPS MAX9755 INL 6 23 PGND PGND 7 22 OUTR OUTR- OUTL HPV HPOUTL DD C1P 12 17 HPOUTR C1N 14 15 CPV SS TSSOP HPOUTL 13 HPOUTR MAX9751 11 CPV SS 10 C1N 9 CPGND 8 C1P ...
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Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers (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.) 30 ______________________________________________________________________________________ Package Information ...
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... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 31 © 2007 Maxim Integrated Products Package Information (continued) PACKAGE OUTLINE, TSSOP 4.40mm BODY 21-0066 is a registered trademark of Maxim Integrated Products, Inc ...