CXAR41204是一款全差分音频功率放大器，专为便携式通信设备应用和移动电话中的高要求应用而设计。它能够将1.3W的连续平均功率传送到8Ω负载中，通常由5伏电池电压产生1%的失真（THD+N）。它工作在2.5V到5.5V的电源。
CXAR41204具有低功耗关机模式。为了方便这一点，可以通过逻辑低启动关机。此外，CXAR41204具有内部热关机保护机制。
CXAR41204包含高级弹出/单击电路，具有最少的外部组件。所有这些特性使CXAR41204非常适合无线手机和其他低电压应用，在这些应用中，最低功耗是主要要求。
CXAR41204有绿色TDFN-3×3-8L和MSOP-8（外露焊盘）两种封装。它在-40℃到+85℃的环境温度范围内工作。
•全差分放大器
•卓越的PSRR：直接连接到电池
•1.3W到8Ω负载，从5V电源
THD+N=1%（典型值）
•1.6W到4Ω负载，从5V电源
THD+N=1%（典型，仅限CXAR41204YDB8）
•2.5V至5.5V操作
•低关机电流
•改进的弹出/点击电路
•支持单端或差分输入
•热过载保护电路
•无输出耦合电容器，自举
所需电容器
•外部增益配置能力
[ CXAR41204 ]
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产品概述 返回TOP
The CXAR41204 features a low power consumption shutdown mode. To facilitate this, shutdown may be enabled by logic low. Additionally, the CXAR41204 features an internal thermal shutdown protection mechanism.
The CXAR41204 contains advanced pop/click circuitry, with a minimal amount of external components. All these features make CXAR41204 ideal for wireless handsets and other low voltage applications where minimal power consumption is a primary requirement.
The CXAR41204 is available in Green TDFN-3×3-8L and MSOP-8 (Exposed Pad) packages. It operates over an ambient temperature range of -40℃ to +85℃.
产品特点 返回TOP
• Fully Differential Amplifier
• Excellent PSRR: Direct Connection to Battery
• 1.3W into 8Ω Load from 5V Supply at
THD+N = 1% (TYP)
• 1.6W into 4Ω Load from 5V Supply at
THD+N = 1% (TYP, CXAR41204YDB8 Only)
• 2.5V to 5.5V Operation
• Low Shutdown Current
• Improved Pop/Click Circuitry
• Support Single-Ended or Differential Input
• Thermal Overload Protection Circuitry
• No Output Coupling Capacitors, Bootstrap
Capacitors Required
• External Gain Configuration Capability
• -40℃ to +85℃ Operating Temperature Range
• Green TDFN-3×3-8L and MSOP-8 (Exposed Pad) Packages
应用范围 返回TOP
Portable Systems
Wireless Handsets
Mobile Phone
Handheld Computers
PDAs
GPS
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产品封装图 返回TOP
电路原理图 返回TOP
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音频功率放大器 |
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Part Number |
CH |
SHDN |
VCC (Min)(V) |
VCC (Max)(V) |
Differential Input |
Output Voltage @VCC=3.6V(W) |
Output Voltage @VCC=5V(W) |
Package |
|
Stereo |
H |
2.8 |
5.5 |
N |
0.7 |
1.3 |
DIP-16 TSSOP-20(EP) TSSOP -16(EP) SOIC-16TQFN-3x3-20L |
|
|
Stereo |
L |
2.6 |
5.5 |
N |
0.7 |
1.3 |
TQFN-4x4-16L |
|
|
Mono |
H |
2.5 |
5.5 |
N |
1.2 |
SOIC-8 SOIC-8(EP) |
||
|
Stereo |
L |
2.8 |
5.5 |
N |
0.7 |
1.3 |
TQFN-4x4-24L |
|
|
Mono |
L |
2.5 |
5.5 |
N |
0.6 |
1.2 |
TDFN-2x2-8L |
|
|
Mono |
L |
2.5 |
5.5 |
Y |
0.65 |
1.3 |
TDFN-3x3-8L MSOP-8(EP) |
|
|
Mono |
L |
2.5 |
5.5 |
Y |
0.65 |
1.3 |
TDFN-2x2-8L |
|
|
Mono |
L |
2.5 |
5.5 |
Y |
0.65 |
1.3 |
MSOP-8 MSOP-10 TDFN-3x3-10L |
|
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