Power amplifier (DECT, PCS) From old datasheet system GaAs MMIC (Power amplifier for DECT and PCS application Fully integrated 3 stage amplifier Operating voltage range: 2.7 to 6 V)
Audio LSIs > Headphone stereo amplifier > Prepower amplifier for headphone stereo PRE / POWER amplifier FOR 1.5V HEADPHONE STEREOS From old datasheet system