Datasheet > SSM6322

SSM6322

更新时间： 2024-09-26 01:04:15

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	518K
描述
High Fidelity, Low Power, Integrated Stereo Audio Amplifier

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SSM6322 数据手册

High Fidelity, Low Power,

Integrated Stereo Audio Amplifier

Data Sheet

SSM6322

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Flexible architecture to interface with all digital-to-analog

converters (DACs)

GAIN1

FILT1

VEE1 VCC1

GND4

SSM6322

Accepts differential current or voltage input (provides

single-ended voltage output)

High output current drive capability

Greater than 100 mA rms output current

Accurately reproduces large music transients into heavy

loads (16 Ω to 32 Ω)

VP1

INPUT

VOUT1

VN1

OUTPUT

GND1

REF1

VNFB1

Excellent audio fidelity

−121 dB total harmonic distortion plus noise (THD + N) at

1 kHz, 2 V rms output with ±± V supply and 32 Ω load

Low output integrated noise (10 Hz to 22 kHz) of

1.8 μV rms with A-weighted filter

Supply range: ±3.3 V to ±6 V (typical)

Low power operation

REF2

SD2

GND2

VP2

INPUT

VOUT2

VNFB2

VN2

OUTPUT

Enabled: 60 mW, V_CC= +± V, V_EE= −± V

Disabled/voice select: <30 μA

Low power disable mode with high output impedance

High-Z in power-down mode eliminating voice mode

switch from the high fidelity path

VEE2 VCC2 GAIN2

FILT2

GND3

Figure 1.

Greater than 87 dB power supply rejection ratio (PSRR) at

20 kHz

GENERAL DESCRIPTION

Adjustable input common-mode voltage with resistor

programmable reference voltage

1.4± V (typical) with no external components

Capable of two single-pole, low-pass filters in series

2.2 nF maximum input capacitor

Second filter between the GAINx and FILTx pins

Pop and click noise suppression

Signal chain integration supports small printed circuit board

(PCB) area

The SSM6322 is an integrated, dual-channel audio amplifier

solution that interfaces directly with audio DAC/CODEC,

maximizing the fidelity of high fidelity audio signal chains. The

highly efficient design of the SSM6322 delivers outstanding

audio performance while minimizing power dissipation for

maximum battery life in portable applications.

The SSM6322 features −121 dB THD + N at 1 kHz, along

with very low output noise from 20 Hz to 20 kHz. The low power

operation, high peak output current, and high PSRR make the

SSM6322 an ideal candidate for applications that require high

fidelity audio, high dynamic range, precision, and low power. This

highly integrated drive solution also reduces development time

while reducing board space and minimizing external components.

Compact 4 mm × 4 mm LFCSP package

APPLICATIONS

High fidelity headphone drivers

Mobile phones

Bluetooth speakers and headphones

Gaming notebooks and tablets

A/V receivers

The SSM6322 is available in a 24-lead LFCSP package. The

SSM6322 operates over the industrial temperature of −40°C to

+85°C.

Professional audio equipment

Audio test equipment

Automobile infotainment systems

Rev. 0

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Technical Support

www.analog.com

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