Contek Microelectronics
LOW POWER AUDIO AMPLIFIER
Motorola => Freescale
TELEPHONE SPEECH NETWORK WITH DIALER INTERFACE
Motorola => Freescale
CONTINUOUSLY VARIABLE SLOPE DELTA MODULATOR/DEMODULATOR
Unspecified
16 SEGMENT X 12 GRID VFD DRIVER WITH KEYSCAN
Unisonic Technologies
VOICE SWITCHED SPEAKER-PHONE CIRCUIT
Unisonic Technologies
LOW POWER AUDIO AMPLIFIER
Motorola => Freescale
Telephone tone ringer