Echo Processor

.Compact Audio System
.Power Active Speaker
.Computer Audio System
.Portable Audio System
.Flat Panel Display and TV
.Home Therater Audio System
.Car Entertainment System
.Set-Top Box
.Karaoke Mixer

Echo Processor

Part No.	Power Supply (V)	Channel	INT. RAM	THD (%) @1V	SNR (dB)	Special Feature	Pin Count	Package	Data Sheet
PT2399	4.5~5.5	1	44K	0.4	90	Built-in VCO, Delay Time Variable	16	DIP,SOP,SSOP	PT2399-s.pdf
PT2392	3 ~ 5.5	2	44K	0.01	100	ALC, Micmixing Amplifier, Built-in Vol, Bass Middle, Trible, Built-in HP Driver and DEPOP	48	LQFP	PT2392_s.pdf
FR6391	3.5 ~ 5.5	1	44K	0.1	90	ALC, Internal Micmixing Amplifier	28	QFN, SOP