Quad-Port, IEEE 802.3af/at PSE Controller for Power over Ethernet

DESCRIPTION The MP3924 is a quad-port power source equipment (PSE) power controller for IEEE 802.3af/at compliant power over Ethernet (PoE) applications. The device has all the functions of IEEE 802.3af/at, including detection, single-event and two-event classification, current limiting, and dis

文件：1.64633 Mbytes 页数：56 Pages

MPS

美国芯源

SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION

DESCRIPTION The device consists of the speech and the dialer. It provides the DC line interface circuit that terminates the telephone line, analog amplifier for speech transmission and necessary signals for either DTMF or loop disconnect (pulse) dialing. SPEECH CIRCUIT ■ 2 TO 4 WIRES CO

文件：188.63 Kbytes 页数：15 Pages

STMICROELECTRONICS

意法半导体

SPEECH AND 14 MEMORY DIALER WITH HOLD FUNCTION

DESCRIPTION The device consists of the speech and the dialer. It provides the DC line interface circuit that terminates the telephone line, analog amplifier for speech transmission and necessary signals for either DTMF or loop disconnect (pulse) dialing. SPEECH CIRCUIT ■ 2 TO 4 WIRES CO

文件：188.63 Kbytes 页数：15 Pages

STMICROELECTRONICS

意法半导体

HIGH-VOLTAGE HOT-SWAP POWER MANAGER

文件：148.22 Kbytes 页数：10 Pages

TI

德州仪器