max97000 Maxim Integrated Products, Inc., max97000 Datasheet
max97000
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max97000 Summary of contents
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... This allows high gain for low-level sig- nals without compromising the quality of large signals. All control is performed using the 2-wire, I The MAX97000 operates in the extended -40NC to +85NC temperature range, and is available in the 2mm x 2mm, 25-bump WLP package (0.4mm pitch). ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier General Description . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier TABLE OF CONTENTS (CONTINUED) Mixers . . . . . . . . . . . . . . . . . . . . . . . ...
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... TO +18dB INADIFF LPMODE PGAINA -6dB TO +18dB HPLMIX PGAINB -6dB TO +18dB HPRMIX INBDIFF -30dB TO +20dB PGAINB SPKMIX -6dB TO +18dB ANALOG SWITCHES VDD SWEN MAX97000 C3 C2 GND PGND 2.7V TO 5.5V 1µF 10µF PVDD C1 C5 BIAS BIAS HPVDD HPLVOL: -64dB TO +6dB B5 HPL CLASS H 0/3dB ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ABSOLUTE MAXIMUM RATINGS (Voltages with respect to GND.) VDD, HPVDD ........................................................-0.3V to +2.2V PVDD, LDOIN .......................................................-0.3V to +6.0V PGND ...................................................................-0.1V to +0.1V HPVSS .................................................................-2. 0.3V C1N ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued 3.7V, V LDOIN PVDD SHDN GND HPLVOL = HPRVOL= SPKVOL = 0dB, speaker loads (Z nected from HPL or ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued 3.7V, V LDOIN PVDD SHDN GND HPLVOL = HPRVOL= SPKVOL = 0dB, speaker loads (Z nected from HPL or ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ELECTRICAL CHARACTERISTICS (continued 3.7V, V LDOIN PVDD SHDN GND HPLVOL = HPRVOL= SPKVOL = 0dB, speaker loads (Z nected from HPL or ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier DIGITAL I/O CHARACTERISTICS ( 3.7V, V LDOIN PVDD SHDN T = +25NC.) (Note 1) A PARAMETER SYMBOL DIGITAL INPUTS (SDA, SCL, SHDN) Input ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier SDA t SU,DAT t LOW t SCL HIGH t HD,STA t R START CONDITION 2 Figure Interface Timing Diagram ( 3.7V, V ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ( 3.7V LDOIN PVDD GND PGND loads (Z ) connected between OUTP and OUTN. Headphone loads (R SPK ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ( 3.7V LDOIN PVDD GND PGND loads (Z ) connected between OUTP and OUTN. Headphone loads (R SPK ...
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... HPLVOL = HPRVOL = SPKVOL = SPK WIDEBAND OUTPUT SPECTRUM 0 RBW = 100Hz SSM 0 100 1000 FREQUENCY (MHz) HARDWARE SHUTDOWN RESPONSE MAX97000 toc24 SHDN 2V/div SPKR OUTPUT 500mV/div 1ms/div SOFTWARE TURN-ON RESPONSE MAX97000 toc26 SDA 2V/div SPKR OUTPUT 1V/div 4ms/div 0dB. Speaker = ∞ ∞ ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier ( 3.7V LDOIN PVDD GND PGND loads (Z ) connected between OUTP and OUTN. Headphone loads (R SPK ...
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... COMMON-MODE REJECTION RATIO vs. FREQUENCY 16I LOAD -10 -20 PREGAIN = +9dB -30 -40 PREGAIN = +18dB -50 PREGAIN = 0dB -60 100 0.01 0.1 1 FREQUENCY (kHz) HARDWARE SHUTDOWN RESPONSE MAX97000 toc40 SHDN 2V/div HPL/HPR 500mV/div 1ms/div SOFTWARE TURN-ON RESPONSE MAX97000 toc42 SDA 2V/div HPL/HPR 500mV/div 4ms/div 0dB. Speaker = ∞ 100 15 ...
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... PVDD 0 (V) COM 16 Typical Operating Characteristics (continued = 0V. Single-ended inputs, preamp gain = 0dB, ) connected from HPL or HPR to GND 1μ +25°C, unless otherwise noted.) A ANALOG SWITCH MAX97000 toc43 10 HPVDD 1V/div 1 HPL/HPR 0.1 200mV/div 0.01 HPVSS 1V/div 0.001 COM 0 = 2.7V -20 - 3.7V PVDD ...
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... PGND Class D Power Ground and Charge Pump Ground C3 GND Analog Ground. C4 Active-Low Shutdown SHDN C5 BIAS Common-Mode Bias. Bypass to GND with a 1FF capacitor MAX97000 C1P C1N HPVDD HPVSS HPR VDD LDOIN SDA SCL HPL PVDD PGND GND SHDN BIAS OUTN ...
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... The MAX97000 includes an internal regulator (LDOIN) to generate VDD. The regulator allows single-supply opera- tion directly from a Li+ battery. The MAX97000 signal path consists of flexible inputs, signal mixing, volume control, and output amplifiers (Figure 2). The inputs can be configured for single- ended or differential signals (Figure 3). The internal ...
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... If one of the inputs is not selected by either mixer automatically powered down to save power. Mixers The MAX97000 Class D speaker amplifier utilizes active emissions limiting and spread-spectrum modulation to minimize the EMI radiated by the amplifier MIXER ...
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... The MAX97000’s spread-spectrum modulator randomly varies the switching frequency by Q20kHz around the center frequency (250kHz). Above 10MHz, the wideband spectrum looks like noise for EMI purposes (see Figure 4) ...
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... Maxim’s patented DirectDrive charge pump to create an internal negative supply voltage. This allows the headphone outputs of the MAX97000 to be biased at GND while operating from a single supply (Figure 6). Without a DC component, there is no need for the large DC-blocking capacitors. Instead of two large (220FF, typ) capacitors, the MAX97000 ...
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... The MAX97000 uses a slave address of 0x9A or 1001101RW. The address is defined as the 7 most significant bits (MSBs) followed by the read/write bit. Set the read/write bit configure the MAX97000 to read mode. Set the read/write bit configure the Charge Pump MAX97000 to write mode. The address is the first byte of information sent to the MAX97000 after the START (S) condition ...
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... Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier Nine internal registers program the MAX97000. Table 1 lists all the registers, their addresses, and power-on- reset states. Register 0xFF indicates the device revision. Table 1. Register Map REGISTER B7 B6 STATUS Input Gain ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier Table 2. Input Register (continued) REGISTER BIT NAME 2 1 PGAINB 0 Table 3. Mixer Registers REGISTER BIT NAME 7 Left Headphone Mixer. Selects which of the four ...
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... Volume Slewing. Determines whether volume slewing is used on all volume control changes to reduce clicks and pops. When enabled, volume changes cause the MAX97000 to ramp through intermediate volume settings whenever a change to the volume is made. If ZCD = 1, slewing occurs at a rate of 0.2ms per step. If ZCD = 0, slew time depends on the input signal ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier Table 4. Volume Control Registers (continued) REGISTER BIT NAME 7 LPGAIN 5 HPRM 4 3 0x04 2 HPRVOL FFM 6 SPKM 5 4 0x05 3 ...
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Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier Table 5. Distortion Limiter Register REGISTER BIT NAME 7 6 THDCLP 0x07 THDT1 Table 6. Power Management Register REGISTER BIT NAME 7 SHDN 6 LPMODE ...
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... Each transmit sequence is framed by a START (S) or REPEATED START (Sr) condi- tion and a STOP (P) condition. Each word transmitted to the MAX97000 is 8 bits long and is followed by an acknowledge clock pulse. A master reading data from the MAX97000 transmits the proper slave address fol- lowed by a series of nine SCL pulses ...
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... STOP condition. Figure 10 illustrates the proper frame format for writing 1 byte of data to the MAX97000. Figure 11 illustrates the frame format for writing n-bytes of data to the MAX97000. CLOCK PULSE FOR ...
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... MAX97000 where to write the next byte of data. An acknowledge pulse is sent by the MAX97000 upon receipt of the address pointer data. The third byte sent to the MAX97000 contains the data that is written to the chosen register. An acknowledge pulse from the MAX97000 signals receipt of the data byte ...
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... Trace lengths should be kept below 1/4 of the wavelength of the RF frequency of interest. Minimizing the trace lengths prevents them from functioning as antennas and coupling RF signals into the MAX97000. The wavelength (l) in meters is given by c/f where m/s, and f = the RF frequency of interest ...
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... PCB to minimize the loop area and thereby the inductance of the circuit. If filter compo- nents are used on the speaker outputs, be sure to locate them as close to the MAX97000 as possible to ensure maximum effectiveness. Minimize the trace length from any ground tied passive components to PGND to further minimize radiated EMI ...
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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 2009 Maxim Integrated Products © Package Information PACKAGE CODE W252F2+1 Maxim is a registered trademark of Maxim Integrated Products, Inc. DOCUMENT NO. 21-0453 33 ...