CXAR4177 CXAR4177A立体声固定增益和无盖耳机驱动程序双电源电压提供更高的效率和更好的功率纹波抑制无需输出电容器进行直流闭锁高PSRR提高了对噪声和RF整流的抗扰度

CXAR4177 CXAR4177A是一款立体声、固定增益和无盖耳机驱动程序，提供TQFN4x4 20针、TQFN3x3 16针（CXAR4177A）或TSSOP-16封装。双电源电压提供更高的效率和更好的功率纹波抑制。CXAR4177 CXAR4177A采用接地参考输出，无需输出电容器进行直流闭锁。消除输出电容器的优点是节省了成本、PCB的空间和元件高度。内置增益设置可以最小化外部元件数量并节省PCB空间。高PSRR提高了对噪声和RF整流的抗扰度。除了这些功能外，启动时间快、封装体积小，使CXAR4177 CXAR4177A成为便携式多媒体设备的理想选择。此外，CXAR4177 CXAR4177A还配备了其他功能。例如，在THD+N=1%时，它能在VDD=3.3V、PVDD=5.0V下驱动200mW至16W，并提供热保护和短路保护。
·不需要输出电容器
·双电源电压（PVDD>VDD）
–电压密度=1.8~5.5V
–PVDD=2.2~5.5伏
·满足VISTA要求
·1%THD+N时的输出功率
-200兆瓦，VDD=3.3伏，PVDD=5.0伏，RL=16瓦
-55mW，VDD=1.8V，PVDD=3.0V，10%THD+N时RL=16W
-270mW，VDD=3.3V，PVDD=5.0V，RL=16W时
-70mW，在VDD=1.8V，PVDD=3.0V，RL=16W时
·所需外部组件更少
·高PSRR:217Hz时80dB
·快速启动时间：120ms
·短路和热保护
·表面贴装组件

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 CXAR4177 CXAR4177A is a stereo, fixed gain, and cap-free headphone driver which is available in TQFN4x4 20-pin, TQFN3x3 16-pin (CXAR4177A) or TSSOP-16 package. Dual supply voltage provides higher efficiency and better power ripple rejection. The CXAR4177 CXAR4177A is designed with ground-reference output and no need the output capacitors for DC blocking. The advantages of eliminating the output capacitor are saving the cost, PCB’s space, and component height. The built-in gain setting can minimize the external component counts and save the PCB space. High PSRR provides increased immunity to noise and RF rectification. In addition to these features, a fast start-up time and small package size make the CXAR4177 CXAR4177A an ideal choice for portable multimedia devices. Moreover, the CXAR4177 CXAR4177A is also equipped other features. For example, at THD+N=1%, it is capable of driving 200mW at VDD =3.3V, PVDD =5.0V into 16W. In addition, it provides thermal and short circuit protections.

   产品特点 返回TOP

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· No Output Capacitor Required 

· Dual Supply Voltage (PVDD>VDD) 

– VDD =1.8 ~5.5V 

– PVDD=2.2 ~ 5.5V 

· Meeting VISTA Requirements 

· Output Power at 1% THD+N 

-200mW, at VDD =3.3V, PVDD =5.0V, RL =16W 

-55mW, at VDD =1.8V, PVDD =3.0V, RL =16W at 10% THD+N 

-270mW, at VDD =3.3V, PVDD =5.0V, RL =16W 

-70mW, at VDD =1.8V, PVDD =3.0V, RL =16W 

· Less External Components Required 

· High PSRR: 80dB at 217Hz 

· Fast Start-Up Time : 120ms 

· Short-Circuit and Thermal Protection 

· Surface-Mount Package 

– TQFN4x4-20B (with Enhanced Thermal Pad) 

– TSSOP-16 

– TQFN3x3-16 (with Enhanced Thermal Pad) (for CXAR4177A) 

· Lead Free and Green Devices Available (RoHS Compliant)

   应用范围 返回TOP

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· Headsets 

· PDAs 

· Portable Multimedia Devices 

· Notebooks

   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 > Headphone Amplifier
Part_No	Package	VDD  Voltage  (V)		IDD, Supply Current (mA)	TSTART-UP(uS)	Output  Power  RL=32W (mW)	Output  Power RL=2.5KW (mW)	Total Harmonic Distortion Plus Noise (%)	Power Supply Rejection Ratio (dB)	Output Noise (uV)	Signal to Noise Ratio (dB)	Output Offset Voltage (mV)
		min	max
CXAR4173	TSSOP14/SOP14	3	3.6	10	500	20	2.1	0.001	80	8	108	5
CXAR4174	TSSOP14/SOP14	2.3	5.5	10	500	40	2.1	0.001	80	8	108	5
CXAR4175	TQFN4x4-20A/ TSSOP16/SOP14	2.3	4.5	5	500	NA	2.1	0.002	90	10	105	8
CXAR4176	TQFN4x4-20B/TSSOP-16	2.3	4.5	5	16000	NA	2.1	0.003	80	15	102	8
CXAR4177	TQFN4x4-20B/TSSOP-16/TQFN3x3-16	1.8	5.5	2	120	150	NA	0.03	82	15	95	5
CXAR4177A	TSSOP-16
CXAR4178	WLCSP-16	2.4	5.5	2.5	4000	22	NA	0.02	90	7	95	0.5
CXAR4179	WLCSP2x2-16	1.8	4.5	5	120	145	NA	0.02	75	15	100	5
CXAR4180	WLCSP1.6x1.6-12/TDFN3x3-12	2.3	5.5	1	4000	60	NA	0.03	80	27	95	8
CXAR4181	WLCSP1.6x 1.6-12	2.3	5.5	1	4000	60	NA	0.03	80	27	95	8
CXAR4182	MSOP-10P	2.3	5.5	10	500	60	2.1	0.001	80	8	108	5