CXAR4186 CXAR4186A是单声道无滤波器的D类音频放大器外部输入电阻降低增益非限幅功能提供最大15dB增益降低避免输出信号的限幅高PSRR和差分架构提高了对噪声和RF整流的免疫力

CXAR4186 CXAR4186A是一个单声道、无滤波器的D类音频放大器，可在WLCSP1.5x1.5-9或TDFN3x3-8封装中使用。没有外部输入电阻的默认增益为27dB。此外，外部输入电阻可以降低增益。CXAR4186A提供动态范围控制（DRC）功能，该功能可降低大输入信号的动态范围。CXAR4186可提供最大15dB增益控制。CXAR4186A可以为非限幅功能提供最大15dB增益降低，并且该功能可以避免输出信号的限幅。高PSRR和差分架构提高了对噪声和RF整流的免疫力。除了这些功能外，CXAR4186/a的启动速度快、封装体积小，是便携式设备的理想选择。CXAR4186/A可以在5V电压下驱动1.6W，或在3.6V电压下驱动0.8W至8W，也可以驱动4W。CXAR4186/A采用D级结构，与ab级放大器相比，工作效率高。它适用于电源敏感的应用，如电池供电的设备。无滤波器结构消除了输出滤波器，减少了外部元件数量、板面积和系统成本，简化了设计。此外，CXAR4186/A还提供热保护和短路保护
·工作电压：2.4V-5.5V
·效率高达90%
·供电电流
–VDD=5V时，I DD=3mA
–VDD=3.6V时，I DD=2.5mA
·低关断电流
–VDD=5V时，I DD=1mA
·1%THD+N时的输出功率
–1.3W，VDD=5V，RL=8W时
–0.6W，在VDD=3.6V，RL=8W时
–2.0W，VDD=5V，RL=4W时
–1.0W，在VDD=3.6V时，在10%THD+N时，RL=4W
–1.6W，VDD=5V，RL=8W时
–0.8W，在VDD=3.6V，RL=8W时
–2.8W，VDD=5V，RL=4W（WLCSP-9）
–2.4W，VDD=5V，RL=4W时
–1.2W，VDD=3.6V，RL=4W时
·CXAR4186动态范围控制（DRC）提供最大15dB控制（2:1压缩比）
·CXAR4186A非
-剪辑功能可提供最大15dB控制（增益降低）
·所需外部组件更少
·快速启动时间（4ms）
·217Hz时高PSRR:70dB
·热力及以上
-电流保护
·节省空间包WLCSP1.5x1.5-9凹凸，TDFN3x3-8
·提供无铅和绿色设备（符合RoHS）

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXAR4186/A is a mono, filter-free Class-D audio amplifier available in WLCSP1.5x1.5-9 or TDFN3x3-8 package. The default gains without the external input resistor is 27dB. Besides, the gain can be low down by external input resistance. CXAR4186A provides an Dynamic-RangeControl (DRC) function, and this function can low down the dynamic range for large input signal.CXAR4186 can provide maximun 15dB gain control. CXAR4186A can provide maximum 15dB gain decrease for non-clipping function, and this function can avoid output signal clipping. High PSRR and differential architecture provide increased immunity to noise and RF rectification. In addition to these features, a fast start-up time and small package size make the CXAR4186/A an ideal choice for portable devices. The CXAR4186/A is capable of driving 1.6W at 5V or 0.8W at 3.6V into 8W. It is also capable of driving 4W. The CXAR4186/A is designed with a Class-D architecture and operating with highly efficiency compared with ClassAB amplifier. It’s suitable for power sensitive application, such as battery-powered devices. The filter-free architecture eliminates the output filter, reduces the external component count, board area, and system costs, and simplifies the design. Moreover, the CXAR4186/A provides thermal and short circuit protection

   产品特点 返回TOP

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· Operating Voltage: 2.4V-5.5V 

· High Efficiency up to 90% 

· Supply Current 

–I DD =3mA at VDD =5V 

–I DD =2.5mA at VDD =3.6V 

· Low Shutdown Current 

–I DD =1mA at VDD =5V 

· Output Power at 1% THD+N 

– 1.3W, at VDD =5V, RL =8W 

– 0.6W, at VDD =3.6V, RL =8W 

– 2.0W, at VDD =5V, RL =4W 

– 1.0W, at VDD =3.6V, RL =4W at 10% THD+N 

– 1.6W, at VDD =5V, RL =8W 

– 0.8W, at VDD =3.6V, RL =8W 

– 2.8W, at VDD =5V, RL =4W (WLCSP-9) 

– 2.4W, at VDD =5V, RL =4W 

– 1.2W, at VDD =3.6V, RL =4W 

· CXAR4186 Dynamic Range Control (DRC) Provide Maximum 15dB Control (2:1 Compression Ratio) 

· CXAR4186A Non

-Clip Function can Provide Maximum 15dB Control (Gain Decreasing) 

· Less External Components Required 

· Fast Start-up Time (4ms) 

· High PSRR: 70dB at 217Hz 

· Thermal and Over

-Current Protections 

· Space Saving Packages WLCSP1.5x1.5-9 Bump, TDFN3x3-8 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

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· Mobil Phones 

· Handset 

· PDAs 

· Portable Multimedia Device

   技术规格书（产品PDF) 返回TOP 

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产品封装图 返回TOP

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电路原理图 返回TOP

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Audio Products > Speaker Amplifier
Part_No	Package	Cla -ss	VDD  Voltage (V)		IDD, Supply Current (mA)	TSTAR -UP  (uS)	Out. Pow.  RL =4(W)	Output Power RL=8W (W)	Head- phon  Mode  Output Powe  RL=32W(mW)	Total  Harm. Dist.  Plus  Noise (%)	Pow. Sup. Rej. Ratio dB	Output Noise (uV)	Sign. to  nois Ratio dB	Output Offset Voltage (mV)	Digit. Input	Head phone	AGC Pow.  limit	Mute
			min	max
CXAR4183	SOP-8	AB	3	5.5	1	0.4	1.5	0.9	NA	0.15	74	28	NA	20	N	N	N	N
CXAR4184	MSOP8/P/ TDFN3x3-8	AB	2	5.5	3	0.1	2.1	1.3	NA	0.05	80	15	105	5	N	N	N	N
CXAR4185/A	WLCSP1.5 x1.5-9A TDFN3x3-8 DFN3x3-8	D	2	5.5	2	NA	2.45	1.45	NA	0.1	80	100	90	25	N	N	N	N
CXAR4185B	WLCSP1.5 x1.5-9A	D	2	5.5	2	NA	2.45	1.45	NA	0.1	80	100	90	25	N	N	N	N
CXAR4186/A	WLCSP1.5 x1.5-9A TDFN3x3-8	D	2	5.5	3	NA	2.2	1.3	NA	0.05	70	100	89	20	N	N	N	N
CXAR4187	WLCSP1.2 x1.2-9 TDFN3x3-8	D	2	5.5	2	0	2.45	1.3	NA	0.1	75	55	90	1	N	N	N	N
CXAR4188	WLCSP1.5 x2-12 TQFN4x4-16	G	3	5.2	4	0.6	3.6	2	N/A	0.06	70	49	97.5	2	N	N	N	N
CXAR4189/A	TSSOP24P TSSOP20P TQFN3x2-16	AB	3	5.5	6	NA	1.7	1.1	90	0.04	85	15	105	5	N	Y	N	N
CXAR4190/A	TQFN4x4-16 TQFN3x3-16	AB	3	5.5	6	0.7	2	1.3	52	0.06	61	22	93	10	N	Y	N	N
CXAR4191	TQFN5 x5-20A	AB	2	5.5	6	0.1	2.1	1.3	NA	0.05	80	15	105	5	N	N	N	N
CXAR4192	TQFN4x4-28	AB	5	5.5	18	NA	1.9	1.2	120	0.15	70	80	90	10	N	Y	N	N
CXAR4193	TSSOP-28P TQFN5x5-28	AB	5	5.5	18	NA	1.9	1.2	120	0.15	70	80	90	10	N	Y	N	N
CXAR4194	TQFN5 x5-32A	AB	5	5.5	9	0	1.9	1.3	120	0.07	75	22	100	5	N	Y	N	N
CXAR4195	TQFN5 x5-32	AB	5	5.5	9	0	1.9	1.3	120	0.07	75	22	100	5	N	Y	N	N
CXAR4196	TQFN5 x5-32A	AB	5	5.5	9	0	1.9	1.3	120	0.07	75	22	100	5	N	Y	N	N
CXAR4197	SOP-16P	AB	5	5.5	9	1	1.8	1.3	95	0.07	60	20	95	5	N	Y	N	N
CXAR4198	DIP16/A	AB	5	5.5	9	NA	2	1.3	95	0.07	60	20	95	5	N	Y	N	N
CXAR4199	DIP16/A	AB	5	5.5	9	NA	2	1.3	95	0.07	60	20	95	5	N	Y	N	N
CXAR41100	DIP16/A	AB	3	5.5	9	1.6	2	1.3	95	0.09	60	20	95	5	N	Y	N	N
CXAR41101/A	TSSOP-24P	AB	5	5.5	14	NA	1.9	1.1	90	0.05	60	20	95	5	N	Y	N	N
CXAR41102	TQFN3x3-16	D	2	5.5	3	0	2.3	1.34	NA	0.15	74	100	85	5	N	N	N	N
CXAR41103	SOP-16P	D	3	5.5	8	1.6	2.4	1.4	NA	0.1	55	75	90	20	N	N	N	Y
CXAR41103A	SOP-24 DIP-24 QFN4x4-20A	D	3	5.5	7	1.6	2.2	1.3	60	0.1	70	75	82.5	5	N	Y	A	Y
CXAR41103B	SOP-16 QDN4x4-20A	D	3	5.5	8	1.6	2.4	1.1	NA	0.1	70	75	85	10	N	N	A	Y
CXAR41103C	SSOP24/ QFN4x4-20A	D	3	5.8	8	1.4	2.4	1.7	70	0.1	80	50	92	5	N	Y	A	Y
CXAR41104	SSOP24/P SOP-18 QFN4x4-20A	D	3	5.5	5	1.2	2.3	1.3	NA	0.1	70	80	85	20	N	N	A	Y
CXAR41105	SSOP-24/P	D	3	5.5	5	1.2	2.25	1.3	68	0.06	60	80	78	20	N	Y	A	Y
CXAR41106	TQFN5x5-32	D	8	17	18	1	NA	12	NA	0.07	65	230	NA	20	N	N	N	Y
CXAR41107	TSSOP28P QFN4x4-28	D	8	26	20	0	NA	7	NA	0.1	NA	120	95	15	N	N	P	N
CXAR41107A	TSSOP28P QFN4x4-28	D	8	26	20	0	NA	8	NA	0.1	NA	120	95	15	N	N	P	N
CXAR41108	TSSOP28P QFN4x4-28	D	8	26	20	0	NA	12	0.1	NA	65	120	95	15	N	N	P	N
CXAR41109	QFN5.2 x6.2-32	D	8	17	18	1	NA	14	NA	0.05	65	250	NA	20	N	N	N	Y
CXAR41110	TSSOP28P QFN4x4-28	D	8	26	20	0	NA	15	NA	0.1	65	160	95	15	N	N	P	N
CXAR41111	TSSOP28P QFN4x4-28B	D	5	22	17	0	NA	15	NA	0.05	65	130	95	5	N	N	P	N
CXAR41112	TSSOP28P QFN4x4-28B	D	5	26	17	0	NA	17	NA	0.05	70	120	95	5	N	N	P	N
CXAR41113	TQFN7 x7-48/P	D	9	14	20	NA	NA	7.5	NA	0.2	85	250	85	20	N	N	N	N
CXAR41114/A	SOP8/P MSOP8P	AB	3	5.5	7	0.4	2.3	1.3	NA	0.04	60	28	NA	NA	N	N	N	N