BD5466GUL
Analog Input Monaural Class-D Speaker Amplifiers
BD5466GUL
Analog Input Monaural Class-D Speaker Amplifiers
此IC为内置ALC的小型单声道D类扬声器放大器。支持差分模拟输入，可以广泛应用于手机、笔记本电脑等便携式设备到搭载语音合成的家电和医疗保健设备的宽领域中。效率实现业界顶级的90%，有助于实现低发热、节能。
主要规格
特性：
Grade
Standard
Circuit Type
Class D
Number of Ch
1(Analog)
Speaker Amp Output Power(Max.)[W]
1
Gain [dB]
18
Maximum Output [W,RL=8Ω]
0.8
Maximim Output [W,RL=4Ω]
1.6
Minimum Load [Ω]
4
Input Type
Differential
Start Up Time [ms]
1.02
ALC/Relese time [ms/dB]
Yes/4
Stand-by Current [µA]
0.01
Power Supply Voltage (Min.) [V]
2.5
Power Supply Voltage (Max.) [V]
5.5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
特点：
・内置数字ALC(Automatic Level Control)功能・外接元器件：3点
・超小型封装：9pin WL-CSP(1.7×1.7×0.55mmMax.)
・BD5460/61GUL(无ALC功能,，增益固定产品) 引脚兼容规格
・BD5468GUL(有ALC功能，最大增益+13dB(Typ.)) 引脚兼容规格
・最大增益：18dB(Typ.) [ALC工作时， 18～3dB@1dB Step]
・ALC快速释放（恢复）时间：4ms/1dB(Typ.)
・限制输出功率：
0.7W (Typ.)[VDD=4.2V, RL=8Ω, THD+N≦1%]
0.5W (Typ.)[VDD=3.6V, RL=8Ω, THD+N≦1%]
・音频模拟输入（差动/单输入两种方式）
・无LC滤波输出
・POP音降低电路
・关断功能（兼弱音器）[关断电流= 0.01μA (Typ.)]
・内置保护电路：输出短路、热关断、电源电压欠压保护
Reference Design / Application Evaluation Kit
-
- Evaluation Board - BD5466GUL-EVK-001
BD546xGUL series, BD27400GUL are a wafer-level CSP packaged low voltage monaural Class-D speaker amplifier for mobile phone, portable type electric devices. BD5460/61GUL are a fixed gain type. BD27400GUL is a variable gain type, BD5465/66/67/68/69GUL are fixed gain with ALC type.
