| ◆Filterless Amplifier Passes FCC Radiated Emissions Standards with 100mm of Cable ◆Unique Spread-Spectrum Mode Offers 5dB Emissions Improvement Over Conventional Methods ◆Optional External SYNC Input ◆Simple Master-Slave Setup for Stereo Operation ◆94% Efficiency ◆1.2W into 8Ω ◆Low 0.01% THD+N ◆High PSRR (72dB at 217Hz) ◆Integrated Click-and-Pop Suppression ◆Low Quiescent Current (4mA) ◆Low-Power Shutdown Mode (0.1µA) ◆Short-Circuit and Thermal-Overload Protection ◆Available in Thermally Efficient, Space-Saving Packages 10-Pin TDFN (3mm × 3mm × 0.8mm) 10-Pin µMAX 12-Bump UCSP (1.5mm ×2mm ×0.6mm) |
The MAX9700 mono class D audio power amplifier pro-vides class AB amplifier performance with class D effi-ciency, conserving board space and extending battery life. Using a class D architecture, the MAX9700 delivers 1.2W into an 8Ω load while offering efficiencies above 90%. A patented, low-EMI modulation scheme renders the traditional class D output filter unnecessary.The MAX9700 offers two modulation schemes: a fixed-frequency (FFM) mode, and a spread-spectrum (SSM) mode that reduces EMI-radiated emissions due to the modulation frequency. Furthermore, the MAX9700 oscil-lator can be synchronized to an external clock through the SYNC input, allowing the switching frequency to be user defined. The SYNC input also allows multiple MAX9700s to be cascaded and frequency locked, mini-mizing interference due to clock intermodulation. The device utilizes a fully differential architecture, a full- bridged output, and comprehensive click-and-pop sup-pression. The gain of the MAX9700 is set internally (MAX9700A: 6dB, MAX9700B: 12dB, MAX9700C:15.6dB, MAX9700D: 20dB), further reducing external component count.The MAX9700 features high 72dB PSRR, a low 0.01% THD+N, and SNR in excess of 90dB. Short-circuit and thermal-overload protection prevent the device fromdamage during a fault condition. The MAX9700 is avail-able in 10-pin TDFN (3mm ×3mm ×0.8mm), 10-pinµMAX, and 12-bump UCSP™ (1.5mm ×2mm × 0.6mm) packages. The MAX9700 is specified over the extended -40°C to +85°C temperature range. |
| ●Cellular Phones ●PDAs ●MP3 Players ●Portable Audio |
| VDDto GND..............................................................................6V PVDDto PGND.........................................................................6V GND to PGND.......................................................-0.3V to +0.3V All Other Pins to GND.................................-0.3V to (VDD+ 0.3V) Continuous Current Into/Out of PVDD/PGND/OUT_........±600mA Continuous Input Current (all other pins)..........................±20mA Duration of OUT_ Short Circuit to GND or PVDD........Continuous Duration of Short Circuit Between OUT+ and OUT-..Continuous Continuous Power Dissipation (TA= +70°C) 10-Pin TDFN (derate 24.4mW/°C above +70°C).....1951.2mW 10-Pin µMAX (derate 5.6mW/oC above +70°C).........444.4mW 12-Bump UCSP (derate 6.1mW/°C above +70°C)........484mW Junction Temperature......................................................+150°C Operating Temperature Range...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°C Bump Temperature (soldering) Reflow..........................................................................+235°C |
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| 厂家 | MAXIM [Maxim Integrated Products] |
| 简要 描述 |
1.2W, Low-EMI, Filterless, Class D Audio Amplifier |
| A | B | C | D | E | F | G | H | I | J |
| K | L | M | N | O | P | Q | R | S | T |
| U | V | W | X | Y | Z | 0 | 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 |
| MAX4391CSA |
| MAX4391C/D |
| MAX4390 |
| MAX4392 |
| MCP2551E/P |
| MCP452WF |
| MAX4393 |
| MAX4394 |
