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| 型号： | W671340P |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 模拟传输电路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 12/48页 |
| 文件大小： | 1344K |
| 代理商： | W671340P |
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W671300 SERIES
1. GENERAL DESCRIPTION
The 3.3V family of Ringing Subscriber Line Interface Circuits (RSLIC), collected under the W671300
series, support interfacing to analog Plain Old Telephone Service (POTS) lines. On board ringing
generation supports short and medium loop lengths, up to 5,000 ft at the highest operating voltage of -
100V. This makes the devices are ideal for emerging customer premises equipment applications
such as VoIP gateways, VoIP enabled DSL or Cable Modems as well as Analog Telephone Adapters.
Furthermore the family contains seven different product variations, offering the flexibility to match
performance to individual system requirements. All variations, however, are distinguished by low
power consumption, particularly in standby modes.
The W671300 series allow extensive parameters to be programmed, including the loop current limit,
the transient loop current limit, Ring Trip and Switch Hook Detect thresholds. Integrated test and
diagnostic features are also offered on selected products to support loopback testing as well as line
measurement tests.
Winbond also offers a 3V A-Law/-Law CODEC solution (W681310).
Using this CODEC in
conjunction with the W671300 series completes the termination of the analog POTS line and provides
a cost-effective solution to support the complete BORSCHT feature requirements.
2. FEATURES
3.3V Operation
On board Ringing Generation
Low Standby Power Consumption (75V,
65mW)
Programmable Transient Current Limit
Low Idle Channel noise
Low External Component Count
Integrated MTU DC Characteristics
Silent Polarity Reversal
Balanced and Unbalanced Ringing
Thermal Shutdown with Alarm Indicator
Smooth Off Hook Performance
Pulse Metering and On-hook Transmission
Tip Open Ground Start Operation
Package Options: PLCC and reduced
footprint QFN
APPLICATIONS
Voice Over Internet Protocol (VoIP)
Cable Modems
Voice Over DSL (VoDSL) Modems
Short Loop Access Platforms
Remote Subscriber Units
IP PBX
Analog Terminal Adapters
Fiber to the Home (FTTH) equipment
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