MAX9700BETB+T by Analog Devices

1.2W, Low-EMI, Filterless, Class D Audio Amplifier

Status: Active
Series: MAX9700, MAX9700A, MAX9700B, MAX9700C, MAX9700D
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The MAX9700 mono class D audio power amplifier provides class AB amplifier performance with class D efficiency, 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 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 mode that reduces EMI-radiated emissions due to the modulation frequency. Furthermore, the MAX9700 oscillator 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, minimizing interference due to clock intermodulation. The device utilizes a fully differential architecture, a full-bridged output, and full-bridged comprehensive click-and-pop suppression. 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 from damage during a fault condition. The MAX9700 is available in 10-pin TDFN (3mm x 3mm x 0.8mm), 10-pin µMAX® and 12-bump UCSP™ (1.5mm x 2mm x 0.6mm) packages. The MAX9700 is specified over the extended -40°C to +85°C temperature range.

Where to Buy

Prices starting from US$0.90

Distributor Stock
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Farnell
from US$0.90
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in stock
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Newark Electronics
-
0
in stock
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Features

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 x 3mm x 0.8mm) 10-Pin µMAX 12-Bump UCSP (1.5mm x 2mm x 0.6mm)
10-Pin TDFN (3mm x 3mm x 0.8mm)
10-Pin µMAX
12-Bump UCSP (1.5mm x 2mm x 0.6mm)

Specifications

# Channels 1
Class D
Spkr. Amp. VCC (V) (min) 2.5
Spkr. Amp. VCC (V) (max) 5.5
Spkr. Amp. ICC (mA) (typ) 4
POUT into 4Ω @ 1% THD+N (W) (min) 2.2
POUT into 4Ω @ 10% THD+N (W) (min) 2.7
POUT into 8Ω @ 1% THD+N (W) (min) 1.2
POUT into 8Ω @ 10% THD+N (W) (min) 1.7
Spkr. Amp. Half Pwr. THD+N (%) 0.01
SNR (dB) (A- Weighted) 92
PSRR (dB) (min) 72
Package/Pins TDFN/10UCSP (B)/12UMAX/10
BudgetaryPrice (See Notes) 0.47

Last 6 months Inventory & Pricing History



MAX9700BETB+T Amplifiers & Comparators by Analog Devices

AUDIO AMP, CLASS D, 0.8W, TQFN-10

Status: Unknown
Series: -
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Amplifier Class D
No. of Channels 1 Channel
Output Power 800mW
Supply Voltage Range 2.5V to 5.5V
Amplifier Case Style TDFN
No. of Pins 10Pins
Load Impedance 6ohm
RoHS Compliant Yes

Last 6 months Inventory & Pricing History


Alternative Descriptions

Audio Amp, Class D, 0.8W, Tqfn-10 | Newark Electronics

Frequently Asked Questions

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Is the MAX9700BETB+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Farnell and Newark Electronics have stock available or on a lead time for MAX9700BETB+T .

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