max9761 Maxim Integrated Products, Inc., max9761 Datasheet
![no-image](/images/no-image-200.jpg)
max9761
Available stocks
Related parts for max9761
max9761 Summary of contents
Page 1
Rev 0; 1/03 Stereo 3W Audio Power Amplifiers with General Description The MAX9760–MAX9763 family combines a stereo or mono 3W bridge-tied load (BTL) audio power amplifier, stereo single-ended headphone amplifier, headphone sensing, and a 2:1 input multiplexer all in ...
Page 2
... Storage Temperature Range .............................-65°C to +150°C + 0.3V) Junction Temperature ......................................................+150°C DD Lead Temperature (soldering, 10s) .................................+300°C = 1µ 15kΩ, R BIAS IN F CONDITIONS Inferred from PSRR test DD MAX9760/MAX9761 BTL mode, HPS = 0V MAX9762/MAX9763 Single-ended mode, HPS = V DD SHDN = GND Gain or input switching C = 1µF BIAS C = 0.1µF BIAS ...
Page 3
Stereo 3W Audio Power Amplifiers with ELECTRICAL CHARACTERISTICS (continued) = 5.0V, GND = PGND = 0V, SHDN = 5V noted. Typical values are +25°C.) (Note 1) A PARAMETER SYMBOL OUTPUT AMPLIFIERS ...
Page 4
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux ELECTRICAL CHARACTERISTICS (continued) = 5.0V, GND = PGND = 0V, SHDN = 5V noted. Typical values are +25°C.) (Note 1) ...
Page 5
Stereo 3W Audio Power Amplifiers with ( 5V +25°C, unless otherwise noted TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (SPEAKER MODE 3Ω 2V/V V 0.1 P ...
Page 6
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux ( 5V +25°C, unless otherwise noted TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER (SPEAKER MODE) 100 A = 4V/V V ...
Page 7
Stereo 3W Audio Power Amplifiers with ( 5V +25°C, unless otherwise noted POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (SPEAKER MODE 200mV RIPPLE P 100 10 ...
Page 8
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux ( 5V +25°C, unless otherwise noted TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (HEADPHONE MODE 16Ω ...
Page 9
Stereo 3W Audio Power Amplifiers with ( 5V +25°C, unless otherwise noted OUTPUT POWER vs. LOAD RESISTANCE (HEADPHONE MODE) 600 f = 1kHz 500 THD+N = 10% 400 300 200 THD+N = ...
Page 10
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux ( 5V +25°C, unless otherwise noted ENTERING POWER-DOWN (HEADPHONE MODE OUT_+ HP JACK 100ms/div R = 16Ω L INPUT ...
Page 11
... Stereo 3W Audio Power Amplifiers with PIN MAX9760 MAX9761 QFN TSSOP QFN TSSOP 1 26 — — — — 13, 6, 10, 9, 13, 6, 10, 20, 23, 27 20 11, 25 ...
Page 12
... BTL/headphone amplifiers. The MAX9762/ MAX9763 are mono BTL/stereo headphone amplifiers. The MAX9760/MAX9762 are controlled through an I compatible, 2-wire serial interface. The MAX9761/ MAX9763 are controlled through five logic inputs: MUTE, SHDN, HPS_EN, GAINA/B, and IN1/2 (see Selector Guide). The MAX9760–MAX9763 feature ...
Page 13
... MAX9760–MAX9763 family. Connecting the audio source to the device through two different input resis- tors (Figure 1) increases the number of gain options from two to four (MAX9760/MAX9761) and from three to six (MAX9762/MAX9763). Additionally, the input multi- plexer allows a speaker equalization network to be switched into the speaker signal path. This is typically useful in optimizing acoustic response from speakers with small physical dimensions ...
Page 14
... MUTE register (see the Command Byte Definitions section). The left and right channels can be independently muted. MAX9761/MAX9763 MUTE The MAX9761/MAX9763 feature an active-high MUTE input that mutes both channels. Click-and-Pop Suppression The MAX9760–MAX9763 feature Maxim’s patented comprehensive click-and-pop suppression. During ...
Page 15
Stereo 3W Audio Power Amplifiers with SDA t SU, DAT t LOW SCL t HIGH t HD, STA t R START CONDITION Figure 3. 2-Wire Serial Interface Timing Diagram The clickless power-down cycle only occurs when the device is in ...
Page 16
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux SCL SDA STOP START LEGAL STOP CONDITION SCL SDA START ILLEGAL STOP ILLEGAL EARLY STOP CONDITION Figure 5. Early STOP Condition Figure 6. ...
Page 17
Stereo 3W Audio Power Amplifiers with S ADDRESS 7 BITS SLAVE ADDRESS. SELECTS DEVICE. S ADDRESS 7 BITS SLAVE ADDRESS. SELECTS DEVICE. Figure 7. Write/Read Data Format Example 2 Table Slave ...
Page 18
... In read mode (R/W = 1), the MAX9760/MAX9762 write the contents of the selected register to the bus. The direction of the data flow reverses following the address acknowledge by the MAX9760/MAX9761. The master device reads the contents of all registers, including the read-only status register. the status register format. ...
Page 19
Stereo 3W Audio Power Amplifiers with Table 6. Status Register Format REGISTER ADDRESS BIT NAME 7 THRM 6 AMPR- 5 AMPR+ 4 AMPL- 3 AMPL+ 2 HPSTS When the MAX9760/MAX9762 are configured to auto- matically detect ...
Page 20
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux Component Selection Gain-Setting Resistors External feedback components set the gain of the MAX9760–MAX9763. Resistor R sets the gain of the IN input amplifier (A ) and resistor R VIN ...
Page 21
... BIAS Figure 9. Bass Boost Circuit depending on the status of the gain control input. The stereo MAX9760/MAX9761 feature two gain options per channel. The mono MAX9762/MAX9763 feature two gain options per single-ended channel, and a single gain option for the mono speaker amplifier (see Tables 1a and 1b for the gain-setting options) ...
Page 22
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux AUX_IN OUT BIAS MAX4060 CODEC IN+ IN- MICROCONTROLLER 22 ______________________________________________________________________________________ Typical Application Circuit V DD 0.1µ 0.047µF BIAS SV DD 1µF GAINLB GAINLA 15kΩ OUTL+ ...
Page 23
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux PV DD AUDIO INL1 2:1 INPUT INPUT INL2 AUDIO MUX INPUT BIAS BIAS AUDIO INR1 2:1 INPUT INPUT INR2 AUDIO MUX INPUT SHDN SCL SDA LOGIC ADD INT MAX9760 ...
Page 24
... DD DD GAIN Ω 10k SET MUX 2:1 Ω 10k INPUT MUX Ω 10k BIAS Ω 10k GAIN Ω 10k SET MUX 2:1 Ω 10k INPUT MUX Ω 10k Ω 10k LOGIC HPS MAX9761 GND GAINLB GAINLA OUTL+ OUTL- GAINRB GAINRA OUTR+ OUTR- HPS ...
Page 25
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux INR1 2:1 MIXER INPUT INR2 MUX BIAS BIAS INL1 2:1 INPUT INL2 MUX SHDN SCL SDA LOGIC ADD INT MAX9762 ______________________________________________________________________________________ Functional Diagrams (continued) SV ...
Page 26
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux INR1 INR2 BIAS INL1 INL2 SHDN HP_EN MUTE IN1/IN2 GAINA/B 26 ______________________________________________________________________________________ Functional Diagrams (continued Ω 10k 2:1 MIXER 10k INPUT MUX BIAS ...
Page 27
... GND MAX9761 17 BIAS 16 HPS 15 GAINA/B THIN QFN INL1 2 27 HPS_EN INL2 3 26 MUTE 4 25 IN/1V2 5 24 PGND MAX9761 PGND 6 23 OUTR- OUTL OUTR+ DD OUTL PGND PGND 10 19 GAINRB SHDN 11 18 GAINRA 12 17 INR2 HPS ...
Page 28
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux TOP VIEW SDA 1 INT MAX9762 5 INL1 6 INL2 GAINLA 7 THIN QFN INL1 2 INL2 3 GAINLA ...
Page 29
... MAX9762 I C Compatible MAX9763 Parallel ______________________________________________________________________________________ Headphone Drive and Input Mux MAX9760 TRANSISTOR COUNT: 5256 PIN-PACKAGE MAX9761 TRANSISTOR COUNT: 2715 28 Thin QFN-EP* MAX9762 TRANSISTOR COUNT: 5046 28 TSSOP-EP* MAX9763 TRANSISTOR COUNT: 2505 28 Thin QFN-EP* PROCESS: BiCMOS 28 TSSOP-EP* 28 Thin QFN-EP* 28 TSSOP-EP* SPEAKER AMPLIFIER ...
Page 30
Stereo 3W Audio Power Amplifiers with Headphone Drive and Input Mux (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.) D PIN # 1 I.D. C ...
Page 31
Stereo 3W Audio Power Amplifiers with (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.) Maxim cannot assume responsibility for use of any circuitry other than ...