BU7150NUV
Headphone Amplifier Designed for 0.93V Low Voltage Operation
BU7150NUV
Headphone Amplifier Designed for 0.93V Low Voltage Operation
BU7150NUV是0.93～3.5V (TYP : 1.5V)单一电源工作的耳机放大器，可作为单端的立体声耳机放大器和差动输出（桥连接负载BTL）的单声道扬声器放大器使用。在1.5V工作的情况下，单端立体声耳机模式每通道在16Ω负载和THD+N=1%的条件时提供14mW。另外，单声道BTL模式在8Ω和THD+N = 1％的条件时提供85mW。
主要规格
特性：
Iq[mA]
1
Ext. Gain
Yes
Gain [dB]
12
Output Type
SE (2ch) / BTL (1ch)
Number of Ch
2 (2ch) / 1 (1ch)
Gain [dB]
Variable
Maximum Output [mW,RL=16Ω]
60 (2ch) / - (1ch)
Maximum Output [mW,RL=8Ω]
- (2ch) / 360 (1ch)
Minimum Load [Ω]
16 (2ch) / 8 (1ch)
Input Type
Analog
THD+N [%,RL=16Ω]
0.1 (2ch) / 0.2 (1ch)
S/N [dB]
93 (2ch) / 104 (1ch)
Stand-by Current [µA]
3
Power Supply Voltage (Min.) [V]
0.93
Power Supply Voltage (Max.) [V]
3.5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
3x3 (t=1)
特点：
・宽范围的工作电源电压范围(VDD=0.93～3.5V, Ta=0～85℃)
(VDD=1.03～3.5V, Ta=-40～85℃)
・可选择面向单声道扬声器的BTL模式和单端立体声耳机模式
・利用联合增益来稳定工作
・内置降低滴答/POP 噪音的电路
・关断模式(低功耗模式)
・内置静音功能（静音解除时开启高速运转）
・内置热关断保护电路
・不感应电源电压的启动转换速率时电源开启复位电路
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BU7150NUV-EVK-001
BU7150NUV is Audio Amplifier designed for Single-cell battery operated audio products (VDD = 0.93 ~ 3.5V, at Ta=0~85°C). BU7150NUV can be selected in single-ended mode for stereo headphone and BTL mode for mono speaker operations. For BU7150NUV at VDD = 1.5V, THD+N = 1%, the output power is 14mW at RL = 16Ω in single-ended mode and the output power is 85mW at RL = 8Ω in BTL mode.
-
- Evaluation Board - BU7150NUV-EVK-002
BU7150NUV is Audio Amplifier designed for Single-cell battery operated audio products (VDD = 0.93 ~ 3.5V, at Ta=0~85°C). BU7150NUV can be selected in single-ended mode for stereo headphone and BTL mode for mono speaker operations. For BU7150NUV at VDD = 1.5V, THD+N = 1%, the output power is 14mW at RL = 16Ω in single-ended mode and the output power is 85mW at RL = 8Ω in BTL mode.
