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| 型號(hào)： | SSM2301CPZ-REEL |
| 廠(chǎng)商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO 1.52W MONO D 8LFCSP |
| 標(biāo)準(zhǔn)包裝： | 5,000 |
| 類(lèi)型： | D 類(lèi) |
| 輸出類(lèi)型： | 1-通道（單聲道） |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 1.52W x 1 @ 8 歐姆 |
| 電源電壓： | 2.5 V ~ 5 V |
| 特點(diǎn)： | 消除爆音，差分輸入，短路和熱保護(hù)，關(guān)閉 |
| 安裝類(lèi)型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 8-LFCSP-VD（3x3） |
| 封裝/外殼： | 8-VFDFN 裸露焊盤(pán)，CSP |
| 包裝： | 帶卷 (TR) |
| 配用： | SSM2301-MINI-EVALZ-ND - BOARD EVAL MINI SSM2301 |
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Filterless High Efficiency
Mono 1.4 W Class-D Audio Amplifier
SSM2301
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
2007 Analog Devices, Inc. All rights reserved.
FEATURES
Filterless Class-D amplifier with Σ-Δ modulation
No sync necessary when using multiple Class-D amplifiers
from Analog Devices, Inc.
1.4 W into 8 Ω at 5.0 V supply with less than 1% THD + N
85% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
Greater than 98 dB SNR (signal-to-noise ratio)
Single-supply operation from 2.5 V to 5.0 V
20 nA ultralow shutdown current
Short-circuit and thermal protection
Available in 8-lead, 3 mm × 3 mm LFCSP and MSOP packages
Pop-and-click suppression
Built-in resistors reduce board component count
Fixed and user-adjustable gain configurations
APPLICATIONS
Mobile phones
MP3 players
Portable gaming
Portable electronics
Educational toys
GENERAL DESCRIPTION
The SSM2301 is a fully integrated, high efficiency, Class-D audio
amplifier 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 5.0 V
supply. It is capable of delivering 1.4 W of continuous output
power with less than 1% THD + N driving an 8 Ω load from
a 5.0 V supply.
The SSM2301 features a high efficiency, low noise modulation
scheme that does not require external LC output filters. The modu-
lation provides high efficiency even at low output power.
The SSM2301 operates with 85% efficiency at 1.4 W into 8 Ω
from a 5.0 V supply and has a signal-to-noise ratio (SNR) that
is greater than 98 dB. Spread-spectrum modulation is used to
provide lower EMI-radiated emissions compared with other
Class-D architectures.
The SSM2301 has a micropower shutdown mode with a maximum
shutdown current of 30 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, thus reducing audible noise on activation and
deactivation.
The fully differential input of the SSM2301 provides 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 SSM2301 also has excellent rejection of power supply noise,
including noise caused by GSM transmission bursts and RF
rectification. PSRR is typically 63 dB at 217 Hz.
The gain can be set to 6 dB or 12 dB by utilizing the gain control
select pin connected respectively to ground or to VDD. Gain
can also be adjusted externally by inserting a resistor in series
with each input pin.
The SSM2301 is specified over the commercial temperature range
(40°C to +85°C). It has built-in thermal shutdown and output
short-circuit protection. It is available in both an 8-lead, 3 mm ×
3 mm lead-frame chip scale package (LFCSP) and an 8-lead
MSOP package.
FUNCTIONAL BLOCK DIAGRAM
SHUTDOWN
GAIN
CONTROL
FET
DRIVER
MODULATOR
0.1F
VDD
GND
OSCILLATOR
POP/CLICK
SUPPRESSION
OUT+
OUT–
BIAS
IN+
VBATT
2.5V TO 5.0V
IN–
GAIN
10F
0.01F1
NOTES
1 INPUT CAPS ARE OPTIONAL IF INPUT DC COMMON-MODE
VOLTAGE IS APPROXIMATELY VDD/2.
0.01F1
SD
AUDIO IN–
AUDIO IN+
SSM2301
06
16
3-
0
01
Figure 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SSM2301CPZ-REEL7 | 功能描述:IC AMP AUDIO 1.52W MONO D 8LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 線(xiàn)性 - 音頻放大器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:AB 類(lèi) 輸出類(lèi)型:耳機(jī)，2-通道（立體聲） 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量:30mW x 2 @ 32 歐姆 電源電壓:2.7 V ~ 5.5 V 特點(diǎn):3D，低音提升，無(wú)噪音，熱保護(hù)，關(guān)斷 安裝類(lèi)型:表面貼裝 供應(yīng)商設(shè)備封裝:20-QFN（3x3） 封裝/外殼:20-WFQFN 裸露焊盤(pán) 包裝:Digi-Reel® 其它名稱(chēng):706-1163-6 |
| SSM2301-EVALZ | 制造商:Analog Devices 功能描述:Evaluation Board For Filterless Class-D Audio Amplifier 制造商:Analog Devices 功能描述:EVAL BD - Bulk 制造商:Analog Devices 功能描述:Class-D Audio Amplifier Eval. Board |
| SSM2301-MINI-EVALZ | 功能描述:BOARD EVAL MINI SSM2301 RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 音頻放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
| SSM2301-MINI-EVALZ | 制造商:Analog Devices 功能描述:Class-D Audio Amplifier Eval. Board |
| SSM2301N | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:P-CHANNEL ENHANCEMENT-MODE POWER MOSFET |
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