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參數資料
| 型號： | PCT789T-A |
| 英文描述： | PCI HSP56 World MicroModem/PCT303DW/PCT1789W |
| 中文描述： | 世界MicroModem/PCT303DW/PCT1789W的PCI HSP56 |
| 文件頁數： | 1/70頁 |
| 文件大小： | 872K |
| 代理商： | PCT789T-A |
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1789W0DOCDAT06A-0299
1
PC-TEL, Inc.
!
The Leader in Host Signal Processing (HSP) Modem Technology
PRELIMINARY
PRELIMINARY
PCT1789W Chip Set
PCI HSP56 World MicroModem
Data/Fax/Voice Modem Solution
PCT789T-A F
EATURES
3.3 V PCI HSP Controller
56K ITU upgradable/data
14.4K Fax/ADPCM Voice/V.80
Low power consumption (35 mW operating @ 3.3 V)
and auto power management
Supports Win 95, Win 98, Win NT 4.0 and NT 5.0
operating systems
Support for D3 cold, VAUX, Wake-on-Ring
Minimum system configuration:
Pentium MMX 166 MHz +, AMD K6 MMX 200 MHz +,
or Cyrix 6x86MX PR200 +; 256K Cache; 16 MB RAM
HSP speakerphone via software upgrade with full-
duplex sound chip
V.80 for Point to Point H.324 video conferencing
PCT789T-A H
ARDWARE
F
EATURES
PCI interface
– comply with PCI V2.2 specification
– comply with PCI Bus Power Management
Interface Specification V1.1
Programmable circular buffer
– for effectively supporting different sampling rates
and protocols
EEPROM required for storing user defined subsystem
ID, subsystem vendor ID, anddevice ID
Low power consumption
– power supply range for digital circuit: 3.3 V ± 5%.
– the lowest power consumptive solution in the mo-
dem industry today
– support power-down mode for CODEC and/or
core logic
PCT789T-A F
UNCTIONAL
D
ESCRIPTION
The PCT789T-A device provides the interface and
buffering between PCI bus and CODEC serial interface,
input/output port, interrupt control, and auto power-down
management. This device works with CODEC, DAA,
and PC-TEL’s advanced host signal processing
software to perform data/fax/voice functions. The figure
below shows the hardware block diagram of an internal
modem using the PCT789T-A device.
PCT789T-A is a single-chip modem controller which
supports PC-TEL Host Signal Processing 56Kbps
modem solution. The PCT789T-A provides the most
compact, power-saving, and cost-effective solution for
56Kbps internal modems. It can also be used with other
hardware such as audio chip and video-conferencing
chip sets for combo board applications.
PCT1789W F
UNCTIONAL
B
LOCK
D
IAGRAM
PCT789T-A
PCT789T-A
PCT303DW
EEPROM
PC BUS
PSTN
RING DETECTION
LINE SENSOR
CALLER ID CONTROL
OFF HOOK CONTROL
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCT789T-C | 制造商:PCTEL 功能描述:PCI MODEM CHIP |
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