MAX9704ETJ+T Maxim Integrated Products, MAX9704ETJ+T Datasheet
![IC AMP AUDIO PWR 16W STER 32TQFN](/photos/6/50/65019/32-tqfn_21-0140l_sml.jpg)
MAX9704ETJ+T
Specifications of MAX9704ETJ+T
Related parts for MAX9704ETJ+T
MAX9704ETJ+T Summary of contents
Page 1
... IN+ H-BRIDGE 0.47μF IN- Pin Configurations appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ Filterless Class D Amplifier ♦ Unique Spread-Spectrum Mode Offers 5dB Emissions Improvement Over Conventional Methods ♦ ...
Page 2
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers ABSOLUTE MAXIMUM RATINGS (All voltages referenced to PGND PGND, AGND .............................................................30V DD OUTR_, OUTL_, C1N..................................-0. C1P............................................(V - 0.3V) to (CHOLD + 0.3V) DD CHOLD ........................................................(V All Other Pins ...
Page 3
Spread-Spectrum, Class D Amplifiers ELECTRICAL CHARACTERISTICS (continued) = 15V, AGND = PGND = 0V, SHDN ≥ PGND (f = 660kHz), R connected between OUTL+ and OUTL- and OUTR+ and OUTR noted. Typical values ...
Page 4
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers (33µH with 4Ω, 68µH with 8Ω, part in SSM mode, 136µH with 16Ω, measurement BW = 22Hz to 22kHz, unless otherwise noted.) TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY ...
Page 5
Spread-Spectrum, Class D Amplifiers (33µH with 4Ω, 68µH with 8Ω, part in SSM mode, 136µH with 16Ω, measurement BW = 22Hz to 22kHz, unless otherwise noted.) EFFICIENCY vs. OUTPUT POWER 100 R = 16Ω ...
Page 6
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers (33µH with 4Ω, 68µH with 8Ω, part in SSM mode, 136µH with 16Ω, measurement BW = 22Hz to 22kHz, unless otherwise noted.) OUTPUT FREQUENCY SPECTRUM 20 SSM MODE A = 16dB 0 ...
Page 7
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers PIN NAME MAX9703 MAX9704 23, 24 PGND C1N 6 6 C1P 7 7 CHOLD ...
Page 8
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers Detailed Description The MAX9703/MAX9704 filterless, Class D audio power amplifiers feature several improvements to switch- mode amplifier technology. The MAX9703 is a mono amplifier, the MAX9704 is a stereo amplifier. These devices ...
Page 9
Spread-Spectrum, Class D Amplifiers 100 Figure 1. MAX9704 EMI Spectrum, 9in PC Board trace, 3in Twisted-Pair Speaker Cable _______________________________________________________________________________________ 10W Stereo/15W Mono, Filterless MAX9704 C ...
Page 10
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers EFFICIENCY vs. OUTPUT POWER 100 90 MAX9704 CLASS OUTPUT POWER (W) Figure ...
Page 11
Spread-Spectrum, Class D Amplifiers The MAX9703/MAX9704 feature an internally set, logic- selectable gain. The G1 and G2 logic inputs set the gain of the MAX9703/MAX9704 speaker amplifier (Table 2). Table 2. Gain Selection ...
Page 12
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers used if a design is failing radiated emissions due to board layout or cable length, or the circuit is near EMI- sensitive devices. Use a ferrite bead filter when radiat- ed frequencies ...
Page 13
Spread-Spectrum, Class D Amplifiers Additional improvements are possible if all the traces from the device are made as wide as possible. Although the IC pins are not the primary thermal path of the pack- age, they do provide a small ...
Page 14
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers 0.18μF 10V 0.01μF LOGIC INPUTS SHOWN FOR LOGIC HIGH > 2.5V. IN CHOOSE CAPACITOR VOLTAGE RATING ≥ V † *SYSTEM-LEVEL REQUIREMENT. 14 ______________________________________________________________________________________ 10V TO 25V 100μF* † 25V ...
Page 15
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers 100μF* † 25V 0.1μF 25V 1 2 PGND 0.47μF 10 INL+ MODULATOR 0.47μF 9 INL- 19 FS1 V REG OSCILLATOR FS2 20 V REG 0.47μF INR+ 16 MODULATOR 0.47μF INR ...
Page 16
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers OUTL- OUTL+ CODEC OUTR+ OUTR- *BULK CAPACITANCE, IF NEEDED. 16 ______________________________________________________________________________________ V DD 100μF* 1μ 0.47μF INL- 0.47μF INL+ 0.47μF INR+ 0.47μF INR- SS 0.18μF SHDN 1μF INL- 1μF 15kΩ ...
Page 17
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D Amplifiers TOP VIEW N.C. 25 N.C. 26 OUT- 27 OUT- 28 MAX9703 OUT+ 29 OUT+ 30 N. ...
Page 18
Stereo/15W Mono, Filterless, Spread-Spectrum, Class D 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.) E E/2 D ______________________________________________________________________________________ DETAIL A e ...
Page 19
Spread-Spectrum, Class D 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.) ______________________________________________________________________________________ 10W Stereo/15W Mono, Filterless, Package Information (continued) PACKAGE OUTLINE 32, 44, 48, ...
Page 20
... 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. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products Package Information (continued registered trademark of Maxim Integrated Products, Inc ...