PSB21383 |
RFQ for PSB21383 Required Field |
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| Product | Manufacturers | Pack | D/C |
| PSB21383 | - | 747 | - |
The SCOUT-S or SCOUT-SX respectively integrates all necessary functions for the completion of a cost effective ISDN voice terminal solution.
Please note: Throughout the whole document "SCOUT™" refers to "SCOUT™-S" and "SCOUT™-SX"
The SCOUT combines the functionality of the ARCOFI®-BA PSB 2161 (Audio Ringing Codec Filter Basic Function) or ARCOFI®-SP PSB 2163 (Audio Ringing Codec Filter with Speakerphone) respectively and the ISAC®-S TE PSB 2186 (ISDN Subscriber Access Controller for Terminals) on a single chip.
The SCOUT-S is suited for the use in basic ISDN voice terminals just as it is, and in combination with an additional device on the modular IOM®-2 interface, in high end featurephones e.g. with acoustic echo cancellation.
The SCOUT-SX PSB 21383 is an extended SCOUT-S PSB 21381 which provides the speakerphone performance of the ARCOFI-SP PSB 2163.
The transceiver implements the subscriber access functions for an ISDN terminal to be connected to a four wire S/T interface. It covers complete layer-1 and basic layer-2 functions for digital terminals.
The codec performs encoding, decoding, filtering functions and tone generation (ringing, audible feedback tones and DTMF signal). An analog front end offers three analog inputs and two analog outputs with programmable amplifiers.
The IOM-2 interface allows a modular design with functional extensions (e.g. acoustic echo cancellation, tip/ring extension, modem extension, answering machine, video or data terminal) by connecting other voice/data devices to the SCOUT.
In the P-MQFP-44 package (PSB21381/3) only a serial microcontroller interface (SCI) is supported.
In the P-MQFP-64 package (PSB21382/4) a serial and parallel microcontroller interface are supported. A clock signal and a reset input and output pin complete the microcontroller interface.
The SCOUT is
Features |
| • 8-bit parallel microcontroller interface (only PSB 21382/4 in P-MQFP-64 package), Motorola, Siemens/Intel bus typemultiplexed or non-multiplexed, direct-/indirect register addressing• Serial control interface (SCI)• IOM-2 interface in TE mode, single/double clock, two serial data strobe signals• Various possibilities of microcontroller data access, data control and data manipulation to all IOM-2 timeslots• Power supply 3.3V or 5V• Monitor channel handler (master/slave)• Sophisticated power management for restricted power mode• Programmable microcontroller clock output and reset (input/output) pins• Advanced CMOS technologyTransceiver part• Full duplex 2B+D S/T interface transceiver according to ITU-T I.430• Conversion of the frame structure between the S/T interface and IOM-2• Receive timing recovery• Continuously adapted receive thresholds• D-channel access control• Access to S and Q bits of S/T interface• Activation and deactivation procedures with automatic activation from power down state• HDLC controller. Operating in non-auto mode, transparent mode 0-2 or extended transparent mode. Access to B1, B2 or D channels or the combination of them e.g. for 144 kbit/s data transmission (2B+D)• FIFO buffer with 64 bytes per direction and programmable FIFO thresholds for efficient transfer of data packets• Implementation of IOM-2 MONITOR and C/I-channel protocol to control peripheral devices• Realization of layer-1 statemachine in software possible• Watchdog timer• Programmable reset sources• Test loops and functionsCodec part• Applications in digital terminal equipment featuring vo |
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Parameter |
Symbol |
Limit Values |
Units | |
|
min. |
max. | |||
| Storage temperature |
Tstg |
65 |
150 |
|
| Input/output voltage on any pin with respect to ground |
VS |
0.3 |
VDD + 0.3 |
V |
| Maximum voltage on any pin with respect to ground |
Vmax |
7 |
V | |
