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| 型号： | SSM2319CBZ-R2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO 3.7W MONO D 9WLCSP |
| 标准包装： | 1 |
| 类型： | D 类 |
| 输出类型： | 1-通道（单声道） |
| 在某负载时最大输出功率 x 通道数量： | 3.7W x 1 @ 3 欧姆 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，短路和热保护，关闭 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 9-WLCSP（1.52 x 1.69） |
| 封装/外壳： | 9-UFBGA，WLCSP |
| 包装： | 标准包装 |
| 其它名称： | SSM2319CBZ-R2DKR |
Filterless, High Efficiency,
Mono 3 W Class-D Audio Amplifier
SSM2319
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
2008 Analog Devices, Inc. All rights reserved.
FEATURES
Filterless Class-D amplifier with ultraefficient spread-
spectrum Σ-Δ modulation
Internal modulator synchronization (SYNC)
3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply
with <1% total harmonic distortion (THD)
90% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
Signal-to-noise ratio (SNR): 98 dB
Single-supply operation: 2.5 V to 5.5 V
Ultralow shutdown current: 20 nA
Short-circuit and thermal protection with autorecovery
Available in 9-ball, 1.5 mm × 1.5 mm WLCSP
Pop-and-click suppression
Built-in resistors reduce board component count
Default fixed 12 dB or user-adjustable gain setting
APPLICATIONS
Mobile phones
MP3 players
Portable gaming
Portable electronics
Educational toys
GENERAL DESCRIPTION
The SSM2319 is a fully integrated, high efficiency 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 3 W of continuous
output power with <1% THD + N driving a 3 Ω load from a
5.0 V supply.
The SSM2319 features a high efficiency, low noise modulation
scheme that does not require any external LC output filters. The
modulation continues to provide high efficiency even at low output
power. It operates with 90% efficiency at 1.4 W into 8 Ω or 85%
efficiency at 3 W into 3 Ω from a 5.0 V supply and has an SNR
of 98 dB. Spread-spectrum pulse density modulation is used to
provide lower EMI-radiated emissions compared with other
Class-D architectures.
SYNC can be activated in the event that end users are concerned
about clock intermodulation (beating effect) of several amplifiers in
close proximity.
The SSM2319 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.
The device also includes pop-and-click suppression circuitry.
This minimizes voltage glitches at the output during turn-on and
turn-off, reducing audible noise on activation and deactivation.
The default gain of the SSM2319 is 12 dB, but users can reduce
the gain by using a pair of external resistors (see the Gain section).
The SSM2319 is specified over the industrial temperature range
of 40°C to +85°C. It has built-in thermal shutdown and output
short-circuit protection. It is available in a 9-ball, 1.5 mm × 1.5 mm
wafer level chip scale package (WLCSP).
FUNCTIONAL BLOCK DIAGRAM
SHUTDOWN
0.1F
VDD
POP/CLICK
SUPPRESSION
OUT+
OUT–
IN–
VBATT
2.5V TO 5.5V
IN+
MODULATOR
(Σ-Δ)
GND
SYNC OUTPUT
10F
0.1F*
*INPUT CAPACITORS ARE OPTIONAL IF INPUT DC COMMON-MODE
VOLTAGE IS APPROXIMATELY VDD/2.
0.1F*
SD
AUDIO IN+
AUDIO IN–
SSM2319
40k
160k
40k
FET
DRIVER
BIAS
INTERNAL
OSCILLATOR
07
55
0-
00
1
SYNCI
SYNCO
SYNC INPUT
SYNC
Figure 1.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SSM2319CBZ-REEL | 功能描述:IC AMP AUDIO 3.7W MONO D 9WLCSP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:D 类 输出类型:1-通道（单声道），带立体声耳机 在某负载时最大输出功率 x 通道数量:930mW x 1 @ 8 欧姆; 40mW x 2 @ 16 欧姆 电源电压:2.7 V ~ 5.5 V 特点:消除爆音，差分输入，I²C，静音，关闭，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) 其它名称:MAX97000EWA+T-ND |
| SSM2319CBZ-REEL7 | 功能描述:IC AMP AUDIO 3W MONO D 9WLCSP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 标准包装:2,000 系列:- 类型:AB 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:- 电源电压:4 V ~ 18 V 特点:- 安装类型:通孔 供应商设备封装:8-DIP 封装/外壳:8-DIP（0.300"，7.62mm） 包装:管件 |
| SSM2335 | 制造商:AD 制造商全称:Analog Devices 功能描述:Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier |
| SSM2335CBZ-R2 | 功能描述:IC AMP AUDIO 4.28W MONO D 9WLCSP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| SSM2335CBZ-REEL | 功能描述:IC AMP AUDIO 4.28W MONO D 9WLCSP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 标准包装:2,000 系列:- 类型:AB 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:- 电源电压:4 V ~ 18 V 特点:- 安装类型:通孔 供应商设备封装:8-DIP 封装/外壳:8-DIP（0.300"，7.62mm） 包装:管件 |
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