Datasheet > SSM2932ACBZ-RL

SSM2932ACBZ-RL

更新时间： 2024-11-30 07:18:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	378K
描述
High Efficiency, Ground-Referenced

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SSM2932ACBZ-RL 数据手册

High Efficiency, Ground-Referenced

Class-G Headphone Amplifier

Data Sheet

SSM2932

FEATURES

GENERAL DESCRIPTION

Ground-referenced Class-G output stage

Very high efficiency for portable applications

1.7 mA typical quiescent current

50 mW per channel into 16 Ω load (with 3.3 V supply)

98 dB signal-to-noise ratio (SNR), A-weighted

90 dB power supply rejection ratio at 217 Hz

2.5 V to 3.6 V supply range

Selectable gain: 0 dB or 6 dB

High-Z output mode for sharing of output jack

1 μA shutdown current

Short-circuit protection

Pop-and-click reduction circuitry

8 kV ESD protection on output terminals

16-ball, 0.4 mm pitch WLCSP (1.64 mm × 1.64 mm)

−40°C to +85°C operating temperature range

The SSM2932 is a stereo headphone amplifier capable of

delivering 50 mW of continuous output power per channel

into 16 Ω single-ended loads at the 1% THD + N threshold.

The stereo headphone drivers are high efficiency, true ground-

referenced Class-G technology.

The SSM2932 incorporates a gain control pin that selects a gain

of 0 dB or 6 dB. The ground-referenced output scheme eliminates

the need for large dc blocking capacitors, reducing system cost

and board area. The Class-G amplifier is fine-tuned to maximize

battery life, a critical task in portable applications. The device

maximizes battery life by modulating the amplifier power supply

rail to match the output demand without consuming excessive

supply current, thus reducing power dissipation during typical

audio playback.

The SSM2932 is specified over the industrial temperature range

of −40°C to +85°C. It has output short-circuit protection as well

as ESD protection to 8 kV (human body model). The SSM2932

is available in a 16-ball, 1.64 mm × 1.64 mm wafer level chip

scale package (WLCSP).

APPLICATIONS

Cell phones

Smartphones/multimedia phones

Digital cameras

Portable media players

Phone accessories

PDAs

FUNCTIONAL BLOCK DIAGRAM

PVDD

PGND

POWER

MANAGEMENT

POR

GAIN

INL+

INL–

OUTR

PGA

SGND

OUTL

INR+

INR–

PGA

SSM2932

POP/

CLICK

CURRENT

LIMIT

Figure 1.

Rev. 0

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

Fax: 781.461.3113

www.analog.com

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