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參數(shù)資料
| 型號： | PT7D6555 |
| 英文描述： | -40V Single P-Channel HEXFET Power MOSFET in a TSOP-6 (Micro 6) package |
| 中文描述： | 擴展的PCM接口控制器？ |
| 文件頁數(shù)： | 1/56頁 |
| 文件大小： | 489K |
| 代理商： | PT7D6555 |
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Preliminary Data Sheet
PT7D6555
Extended PCM Interface Controller
1
PT0105(08/02)
Ver:0
Features
Switching Feature
Board Controller for up to 32 ISDN or 64 analog
subscribers
Non-blocking switch for 128 channels
Switching of 16-, 32-, or 64-kbit/s channels
Two consecutive 64-kbit/s channels can be
switched as a single 128-kbit/s channel
Freely programmable time slot assignment for all
subscribers
Two serial interfaces (PCM and CFI) programmable
over a wide data range (128 - 8192 kbit/s)
Data rates of PCM and Configurable interface
independent from each other (data rate adaptation)
PCM-interface
-
Tristate control signals for external drivers
-
Programmable clock shift
-
Single or double data clock
Configurable interface
-
Configurable for IOM-, SLD- and PCM-
applications
-
High degree of flexibility for datastream adaptation
-
Programmable clock shift
-
Single or double data clock
Synchronous
μ
P-access to two selected channels
Handling of Layer-1 Functions
Change detection for C/I-channel (IOM-configura-
tion) or feature control (SLD-configuration)
Double last-look logic for C/I-channel (IOM-2
analog configuration)
Additional last-look logic for feature control (SLD-
configuration)
Buffered monitor (IOM-configuration) or
signalling channel (SLD-configuration)
Bus Interface
Intel or Motorola type
μ
P-interface
8-bit demultiplexed bus interface
FIFO-access interrupt
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Applications
Digital line cards with different architectures,
Central control units of key systems,
Analog line cards,
Concentrators.
Introduction
The PT7D6555 is a highly integrated controller circuit
optimized for analog and ISDN line card and central
switch applications. It provides the circuitry necessary
to manage up to 32 digital (ISDN or proprietary) or
64 analog subscribers.
PT7D6555 is dedicated to switch PCM data between
two serial interfaces, the system interface (PCM
interface) and the configurable interface (CFI). The
device performs non-blocking time and space
switching for up to 128 channels. Since the system
cost of the PT7D6555 is divided by the number of
lines it controls, an highly economical implementation
of digital or analog subscriber lines can be performed.
Ordering Information
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