IC U4089B-M U4089B-P U4090B-P U4091BM-N U3761MB-X U4037B-N U4082B U4083B

Corded Phone ICs - Devices
High-End Phone
Low-End Phone
Modular Phone
High-End Phone 
Device  Description
U4089B-M  Monolithic Integrated Feature Phone IC 
 
U4089B-P  Multi-standard feature phone circuit with voice switch 
 
U4090B-P  Multi-standard feature phone circuit with voice switch (EMI improved) 
 
U4091BM-N  Multi-standard feature phone IC, bus controlled 
 
Low-End Phone 
Device  Description
U3761MB-X  One-chip telephone, low-voltage speech circuit, dialer 3 + 10 memories 
 
Modular Phone 
Device  Description
U4037B-N  Microcontroller-controlled speech and ringer IC, double power supply for ringer and speech function 
 
U4082B  Voice-switched circuit 
 
U4083B  Low-power Audio Amplifier for Telephone Applications