CXAR41277 is a stereo audio power amplifier in 20pin TSSOP thermal pad package or 20-pin TQFN 4X4. It can drive 2W continuous RMS power into 4Ω load per channel in Bridge-Tied Load (BTL) mode at 5V supply voltage. Its THD is smaller than 1% under the above operation condition
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[ CXAR41277 ]"
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产品概述 返回TOP
CXAR41277 is a stereo audio power amplifier in 20pin TSSOP thermal pad package or 20-pin TQFN 4X4. It can drive 2W continuous RMS power into 4Ω load per channel in Bridge-Tied Load (BTL) mode at 5V supply voltage. Its THD is smaller than 1% under the above operation condition. To simplify the audio system design in the notebook application and to enlarge the driving power, CXAR41277 supports the Bridge-Tied Load (BTL) mode for driving the speakers. For the low current consumption applications, the SHDN mode is supported to disable CXAR41277 when it is idle. The current consumption can be reduced to 150μA (typically). Amplifier gain is internally configured and controlled by two terminals (GAIN0, GAIN1). BTL gain settings of 6dB, 10dB, 15.6dB, 21.6dB are provided.
产品特点 返回TOP
„ Internal Gain Control, Which Eliminates External Gain-Setting Resistors „ Depop Circuitry Integrated
„ Output Power at 1% THD+N, VDD=5V
--2.0W/CH (typical) into a 4Ω Load
--1.2W/CH (typical) into a 8Ω Load
„ Bridge-Tied Load (BTL) Supported
„ Fully differential Input
„ Shutdown Control Available
„ Surface-Mount Power Package
„ Over-Temperature Protection Embedded 20-Pin TSSOP-P & 20-Pin TQFN 4X4
应用范围 返回TOP
„ Stereo Power Amplifiers for Notebooks or Desktop Computers
„ Multimedia Monitors
„ Stereo Power Amplifiers for Portable Audio Systems
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Stereo Audio Amplifier |
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Part NO. |
VDD (V) min |
VDD (V) max |
POUT THD=1% (W,Ohm) |
POUT(mW) THD=10% (W,Ohm) |
PSRR (dB) |
Gain setting |
Enable Active |
Note |
Package |
|
4.5 |
5.5 |
2.0, 4 |
2.5, 4 |
68 |
Fixed/ADJ |
High |
BTL, De-pop |
TSSOP-20(FD) |
|
|
-- |
6 |
2.0, 4 |
2.6, 4 |
65 |
ADJ |
Low/High |
BTL, Mute, De-pop, POUT(max) Clamping |
TSSOP-24(FD)/ QFN4X4-24 |
|
|
3 |
5.5 |
1.2, 4 |
2.0, 4 |
68 |
Fixed/ADJ |
Low |
DC volume control, PC-Beep |
TSSOP-28(FD)/ TQFN5X5-28 |
|
|
4.5 |
5.5 |
1.9, 4 |
2.6, 4 |
50 |
Fixed |
High |
BTL, SE, OTP |
SOP-16(FD) |
|
|
3 |
5.5 |
1.5, 4 |
2.1, 3 |
-- |
ADJ |
Low/High |
BTL, De-pop |
TQFN3X3-16 |
|
