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DESCRIPTION
ST952 is a line interface designed to implement Modem application up to 56Kbps and Voice applications.
ST952 interfaces between telephone line and capacitive isolation barrier.
A complete D.A.A. is made with ST75951 which interfaces between capacitive isolation barrier and the DSP or HSP signals.
If CLID external transistor switch is enabled, a limited amount of current, less than 1mA, is drawn from the line.
In off-hook state, ST952 DC voltage, 4V at a 20mA line current, allows to interface with most of public networks in the world.
The return loss is externally adjustable to real or complex impedance.
In case of a wrong connection in a digital phone line, ST952 detects the over current value and sends to ST75951 an alert signal through the capacitive isolation barrier.
Before starting a line connection, ST952 is abled to check if the line is used by an other terminal connected on the same telephone line.■ HOOK SWITCH DRIVER
■ RING INDICATOR
■ LINE INTERFACE
- DC TERMINATION (4V AT 20mA)
- 2W/4W HYBRID CONVERTER
- FLAT FREQUENCY RESPONSE DOWN TO 10Hz FOR 56Kps MODEM
■ INTERFACE WITH CAPACITIVE ISOLATION BARRIER
■ CALLER ID INTERFACE
■ DIGITAL PHONE LINE OR OVER LOOP CURRENT LIMIT DETECT
■ PHONE LINE IN USE CHECKAPPLICATIONS
■ MODEMS UP TO V.34, 33.6KBPS AND 56Kbps
■ PCMCIA CARDS
■ FAX MACHINES
■ PERSONAL DIGITAL ASSISTANTS
■ ANSWERING MACHINES
■ HIGH FEATURE PHONES
■ WEBPHONES AND SET TOP BOXES -
Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
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- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/07/02 08:16 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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DHL(www.dhl.com)
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Registered Mail(www.singpost.com)
Free shipping without minimum order.
