BH3548F
Standard Headphone Amplifiers
BH3548F
Standard Headphone Amplifiers
BH3548F是适合在便携式产品中使用的耳机放大器。具有6dB固定增益，不需要增益设定用外置电阻。另外和SOP-8引脚兼容，容易和同系列的BH3541F/44F/47F进行切换。 内置静音功能，能简单地防止电源ON-OFF时的POP音。还内置热关断电路。16/32Ω以外还能驱动8Ω负载，因此也能应用于听筒。
主要规格
特性：
Iq[mA]
6.5
Ext. Gain
No
Gain [dB]
6
Output Type
SE
Number of Ch
2
Gain [dB]
6
Maximum Output [mW,RL=16Ω]
62+62
Maximum Output [mW,RL=32Ω]
31+31
Maximum Output [mW,RL=8Ω]
120+120
Minimum Load [Ω]
8
Input Type
Analog
THD+N [%,RL=16Ω]
0.02
S/N [dB]
93
Power Supply Voltage (Min.) [V]
4
Power Supply Voltage (Max.) [V]
5.5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
5x6.2 (t=1.71)
特点：
・通过内置静噪功能可以防止电源ON-OFF时的噪音・通过内置热关断电路(150℃)防止短路引起的IC破坏
・SOP8pin的小型封装
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BH3548F-EVK-001
BH3544F, BH3547F, BH3548F are headphone amplifiers suitable for portable products. Maximum Output is 0.062～0.077W (typ). BH3544F, BH3547F, BH3548F is pin-to-pin compatible (SOP8), enable to replace each other easily. BH3544F, BH3547F, BH3548F also has mute functions that make it easy to prevent pop noise when power supply turns on/off.
