Rohm Productdetail
Analog Input Monaural Class-D Speaker Amplifier - BD27400GUL
BD27400GUL is a low voltage drive class-D monauralspeaker amplifier that was developed for cellular telephones,mobile audio products and the others.
The LC filter of the speaker output is unnecessary and theexternal part can compose a speaker amplifier at three.
Because the efficiency is high and is low consumption powerwith the class-D operation, it is the optimal for the applicationof the battery drive.
Also Current consumption of 0µA when standby and fasttransitions from standby to active with little pop noise make itis suitable for applications that switch repeatedly betweensuspended and active.
Specifications:
Vcc(Min.)[V]
2.5
Vcc(Max.)[V]
5.5
Iq[mA]
2.9
Ext. Gain
Yes
Maximum Output Gain[dB]
26.0
I/F
PORT
Speaker Amp Outputs
1.0
Speaker Amp THD+N[%]
0.3
Speaker Amp SNR[dB]
-98.0
Speaker Amp PSRR[dB]
64.0
Speaker Amp Input Type
Differential Single
Speaker Amp Type
Class D
Speaker Amp Output Power(Max.)[W]
2.5
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Features:
・ High output power 2.5W typ.（VDD=5V,RL=4Ω,THD+N=10%,BTL）・ Very small package 9-Pin WL-CSP (1.5*1.5*0.55mmMAX)
・ Gain selectable by external resistor
・ LC Filter less
・ Stand by function
・ Protection circuitry (Short protection, Thermal shutdown, Under voltage lockout)
・ Analogue differential input / PWM digital output
・ Pop noise suppression circuitry