ERICSSON Manuals

This is a cost-effective solution for multi-service access applications. It is especially suited for ADSL, VDSL, FTTx and HFC applications, where all services are transported over ATM.

This document is the user manual of T39 phone, it introduces the functions and features of the phone

The PTF 10136 is a 6-watt GOLDMOS FET intended for large signal amplifier applications from to 1.0 GHz. It operates at 57% efficiency with 19 dB typical gain. Nitride surface passivation and full gold metallization ensure excellent device lifetime and reliability.

The PTF 10125 is an internally matched, common source N-channel enhancement-mode lateral MOSFET intended for linear driver and final applications from 1.4 to 1.6 GHz, such as DAB/DRB. It is rated at 135 watts minimum power output. Nitride surface passivation and full gold metallization ensure excellent device lifetime and reliability.

This document is the user guide of Ericsson T19LX mobile phone, which mainly introduces the basic operations, usage methods and precautions of the phone

The MacroDens™ PKF 5000 I series are high reliability, tight 5-6 W DC/DC power modules, designed for use in decentralized 24, 48 and 60VDC power systems. This series uses thick film technology and high integration of silicon devices to achieve MTBF of more than 49 million hours. These DC/DC power modules employ a highly reliable over-molded design with a height of only 8 mm, making them ideal for IT&T and other demanding industrial applications.

The PBL 386 14/1 is a SLIC for use in ISDN Network Terminal Adapters and other short loop telecommunications equipment which often are remote powered, and by that, the available power is limited. The PBL 386 14/1 has been optimized for low total line interface cost, low power and requires a minimum of external components. The PBL 386 14/1 has constant current feed, programmable to max 30mA. The SLIC uses a first battery voltage for On-hook. A second battery voltage is used for Off-hook and must be connected, to reduce short loop power dissipation. The SLIC automatically switches between the two battery supply voltages without need for external components or external control. The loop current controls the switching between On-hook and Off-hook battery. The SLIC incorporates loop current, ground key and ring trip detection functions. The PBL 386 14/1 is compatible with loop start signalling. Two- to four-wire and four- to two-wire voice frequency (vf) signal conversion is accomplished by the SLIC in conjunction with either a conventional CODEC/filter or with a programmable CODEC/filter, e.g. SLAC, SiCoFi, Combo II. The programmable line terminating impedance could be complex or real to fit every market. Longitudinal voltages are suppressed by a feedback loop in the SLIC and the longitudinal balance specifica- tions meet Bellcore TR909 requirements. The PBL 386 14/1 package is a very PCB space efficient.

The PTF 10149 is an internally matched 70-watt GOLDMOS FET intended for cellular and GSM amplifier applications from 921 to 960 MHz. It operates with 50% efficiency and 16 dB typical gain. Nitride surface passivation and full gold metallization ensure excellent device lifetime and reliability.

The PKJ 4000 PI 37.5-150W DC/DC Power Modules are third-generation high-density DC/DC power modules with features such as high efficiency, standard footprint, and wide input voltage range. They utilize proprietary drive and control circuits, planar magnetics, low resistivity multilayer PCB technology, and a patent-pending topology with active rectification. The PKJ series can be used without bulky and height-consuming heatsinks, resulting in a lower total cost. They also offer the flexibility of using a heatsink when needed, enabling reduced airflow, extended reliability, or higher ambient temperature operation in a wide range of 48V and 60V DC powered systems.

The document describes the features and characteristics of the PTB 20155, an NPN common base RF power transistor designed for 28 Vdc class C operation from 610 to 960 MHz. It has a minimum output power of 9 watts and can be used for both CW and PEP applications. Ion implantation, nitride surface passivation, and gold metallization are employed to ensure excellent device reliability. 100% lot traceability is standard.

The PTF 10153 is a 60-watt GOLDMOS FET intended for CDMA and TDMA applications from 1.8 to 2.0 GHz. It operates with 40% efficiency and 11.5 dB minimum gain. Nitride surface passivation and full gold metallization ensure excellent device lifetime and reliability.

PBL 38541 is a monolithic integrated speech transmission circuit for use in electronic telephones or in any other line interface application. It has a high settable supply current for auxiliary functions, up to 6.0 mA (at high line currents). The circuit is designed to accommodate either a low impedance dynamic or an electret microphone. The microphone can be muted separately. Payphone signaling and DTMF dialing tones have a separate input that is controlled by a mute signal. A signal summing point is available at the transmitter input. An internally preset line length compensation can be adjusted with external resistors to fit into different current feed systems, such as 48 V, 2 x 200 ohms, 48 V, 2 x 400 ohms, and 48 V, 2 x 800 ohms. The line length compensation can be shut off in either high or low gain mode. Application dependent parameters such as line balance, side tone level, transmitter and receiver gains, and frequency responses are set independently by external components, which means easy adaptation to various market needs. The setting of the parameters, if carried out in a certain order, will counteract the interaction between the settings. The circuit provides four different DC supplies to feed microphones, dialers, and other more current-consuming functions like handsfree systems.