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| 型号： | SSM2380CBZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUD 2X2W STER D 16WLCSP |
| 产品变化通告： | 8mm Carrier Tape Changes 28/Feb/2012 |
| 标准包装： | 1 |
| 类型： | D 类 |
| 输出类型： | 2 通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 3.2W x 2 @ 4 欧姆 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，I²C，静音，短路和热保护 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 16-WLCSP |
| 封装/外壳： | 16-UFBGA，WLCSP |
| 包装： | 标准包装 |
| 其它名称： | SSM2380CBZ-REEL7DKR |
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2 × 2 W, Filterless, Stereo, Class-D
Audio Amplifier with ALC and I2C
SSM2380
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2010–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Filterless, stereo, Class-D amplifier with Σ-Δ modulation
2 W into 4 Ω load and 1.4 W into 8 Ω load at 5.0 V supply
with <1% total harmonic distortion plus noise (THD + N)
Highly configurable I2C interface for gain adjust, automatic
level control (ALC), and ultralow EMI emissions mode
MODE pin can disable I2C interface for more traditional
stereo amplifier configuration
Stereo-to-mono mixer option via I2C control
93% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
Signal-to-noise ratio (SNR): >100 dB
Single-supply operation from 2.5 V to 5.5 V
Ultralow shutdown current: 20 nA
Short-circuit and thermal protection
Pop-and-click suppression
Available in 16-ball, 2.0 mm × 2.0 mm WLCSP
APPLICATIONS
Mobile phones
MP3 players
Portable electronics
GENERAL DESCRIPTION
The SSM2380 is a fully integrated, high efficiency, stereo, Class-D
audio amplifier. It is designed to maximize performance for mobile
phone applications. The application circuit requires a minimum
of external components and operates from a single 2.5 V to 5.5 V
supply. It is capable of delivering 2 W of continuous output power
with <1% THD + N driving a 4 Ω load from a 5.0 V supply.
The SSM2380 features a highly flexible I2C interface with many
useful settings. Using the I2C control interface, the gain of the
SSM2380 can be selected from 1 dB to 24 dB (plus mute) in
47 steps with no external components. Other features accessed
from the I2C interface include independent left/right channel
shutdown, variable ultralow EMI emission control mode, auto-
matic level control (ALC) for high quality speaker protection,
and stereo-to-mono mixing operation.
The SSM2380 features a high efficiency, low noise modulation
scheme that requires no external LC output filters. The modulation
continues to provide high efficiency even at low output power.
The SSM2380 operates with 93% efficiency at 1.4 W into 8 Ω
or with 85% efficiency at 2 W into 4 Ω from a 5.0 V supply and
has an SNR of >100 dB.
Spread-spectrum pulse density modulation is used to provide
lower EMI-radiated emissions compared with other Class-D
architectures. An added benefit of spread-spectrum Σ-Δ modu-
lation is that no synchronization (SYNC) is needed when using
multiple Class-D amplifiers. For applications that require long
speaker cables (>10 cm), the SSM2380 includes a user-selectable
ultralow EMI emissions mode that eliminates the need for EMI
filters at the Class-D outputs.
The SSM2380 has a micropower shutdown mode with a typical
shutdown current of 20 nA. Shutdown is enabled by applying
a logic low to the SD pin or through an optional independent
channel soft shutdown via I2C.
The device also includes pop-and-click suppression circuitry.
This suppression circuitry minimizes voltage glitches at the
output during turn-on and turn-off, reducing audible noise
on activation and deactivation.
The fully differential inputs of the SSM2380 provide excellent
rejection of common-mode noise on the input. Input coupling
capacitors can be omitted if the dc input common-mode voltage
is approximately VDD/2.
The SSM2380 is specified over the commercial temperature
range of 40°C to +85°C. It has built-in thermal shutdown
and output short-circuit protection. It is available in a 16-ball,
2 mm × 2 mm wafer level chip scale package (WLCSP).
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相关代理商/技术参数 |
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| SSM23LPT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 - 40 Volts CURRENT 2.0 Amperes |
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| SSM2402 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Audio Analog Switches |
| SSM-2402 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Audio Analog Switches |
| SSM2402P | 制造商:Analog Devices 功能描述:Analog Switch Dual SPST 14-Pin PDIP N 制造商:Rochester Electronics LLC 功能描述:DUAL AUDIO SWITCH IC - Bulk 制造商:Analog Devices 功能描述:SWITCH DUAL SPST AUDIO 2402 DIP14 |
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