Aufbau/Content: IC (bipolar); Form/Case/Outline: DIP-20 (PSB4500-P) | SOP-20 (PSB4500-T); Application/Type: Standard Speech Circuit; Daten/electr.data: Vcc: 1.6 ...12 V; Icc: 140 mA; Pd: 640 mW; t op: -25...+75 °C;Variante: PSB4501 (Microphone MUTE input) Manufactured by Siemens/Infineon -