BU7150NUV
Headphone Amplifier Designed for 0.93V Low Voltage Operation
BU7150NUV
Headphone Amplifier Designed for 0.93V Low Voltage Operation
BU7150NUV為可以0.93～3.5V (TYP. : 1.5V)單一電源工作的耳機放大器，可作爲單端的立體聲耳機放大器和差動輸出(橋接負載BTL)的單聲道喇叭放大器使用。以1.5V工作的情况，在單端的立體聲耳機模式下，當每聲道16Ω負載THD+N=1%時可輸出14mW；在單聲道BTL模式下，當8Ω負載THD+N=1%時可輸出85mW。
Product Detail
規格:
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)
功能:
・寬廣的工作電源電壓範圍(VDD=0.93～3.5V, Ta=0～85℃)
(VDD=1.03～3.5V, Ta=-40～85℃)
・可選擇針對單聲道喇叭的BTL模式和單端立體聲耳機模式
・利用單位增益(unity gain)穩定工作
・內建降低切換音(Click)/爆音(POP)的電路
・Shutdown模式(低耗電模式)
・內建靜音功能（靜音解除時高速運轉）
・內建過熱保護電路
・不受電源電壓起動的回轉率所影響的POR(power on reset)電路
Reference Design / Application Evaluation Kit
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- 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.
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- 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.
