The SP8058 has three logic inputs for gain control, one of them operating as TTL compatible (Gain 1), and two other operating as three state logic inputs (Gain 2 and Gain 3). The allowable 14 logic states are used to select 11 gain factors, an adjustment mode, and a sleep mode (see table 4). Adjustment mode is used to adjust the position of the PDIC with respect to the laser beam. In this mode each of the sensors E, F, G, and H is connected to the input of EF, GH, SAD, and SBC channels respectively instead of the standard configuration. In sleep mode all channels are in tri-state condition. The SP8058 is manufactured with an advanced 10GHz BICMOS technology.