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Telecom Line Management IC 100 V Linefeed Interface IC Si321x

Manufacturer : Silicon Laboratories Inc
Package/Case : SOIC-38
Product Categories : Telecom Line Management IC
Datasheet: SI3201-KS Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
In-stock: 2122


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SI3201-KS Product Details


The Si3230 ProSLIC® is a low-voltage CMOS device that provides a multi-functional subscriber line interface ideal for customer premise equipment (CPE) applications. The ProSLIC integrates subscriber line interface circuit (SLIC) and battery generation functionality into a single CMOS integrated circuit. The integrated battery supply continuously adapts its output voltage to minimize power and enables the entire solution to be powered from a single 3.3 V (Si3230M only) or 5 V supply. The ProSLIC controls the phone line through Silicon Labs’ Si3201 Linefeed IC or discrete circuitry. Si3230 features include software-configurable 5 REN internal ringing up to 90 VPK, DTMF generation and decoding, and a comprehensive set of telephony signaling capabilities for operation with only one hardware solution. The ProSLIC is packaged in a 38-pin QFN or TSSOP, and the Si3201 is packaged in a thermally-enhanced 16-pin SOIC.


  • Software Programmable SLIC with codec interface 
  • Software programmable internal balanced ringing up to 90 VPK (5 REN up to 4 kft, 3 REN up to 8 kft) 
  • Integrated battery supply with dynamic voltage output
    On-chip dc-dc converter continuously minimizes power in all operating modes
    Entire solution can be powered from a single 3.3 V or 5 V supply z 3.3 V to 35 V dc input range
    Dynamic 0 V to –94.5 V output 
  • Software programmable linefeed parameters:
    Ringing frequency, amplitude, cadence, and waveshape
    2-wire ac impedance
    constant current feed (20 to 41 mA)
    Loop closure and ring trip thresholds and filtering
  • Software programmable signal generation and audio processing:
    DTMF generation and decoding z 12 kHz/16 kHz pulse metering generation
    Phase-continuous FSK (caller ID) generation
    Dual audio tone generators
    Smooth and abrupt polarity reversal 
  • Extensive test and diagnostic features
    Realtime dc linefeed measurement
    GR-909 line test capabilities 
  • SPI control interface 
  • Extensive programmable interrupts 
  • 100% software configurable global solution 
  • Lead-Free and RoHS-compliant package options available


  • Interface to Broadcom devices
    BCM11xx residential gateway
    BCM3341 VOIP processor
    BCM33xx cable modem
  • Voice over IP 
  • Terminal adapters 
  • Fixed cellular terminal


SI3201-KS Pinout
(Picture: Pinout)

SI3201-KS Block Diagram
(Picture: Diagram)

Technical Parameters

  • Product
  • SLIC
  • Supply Voltage Min
  • 3.13 V
  • Supply Current
  • 88 mA
  • Maximum Operating Temperature
  • + 70 C
  • Minimum Operating Temperature
  • 0 C
  • Mounting Style
  • Package / Case
  • SOIC-38
  • Packaging
  • Tube
  • Factory Pack Quantity
  • 48

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Estimated Delivery Time: Jul 31 - Aug 05 days (choose Expedited at checkout).

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    We have rich products, can meet your various needs.

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    Minimum order quantity starts from 1pcs.

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    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

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    Step3: Anti-Static Bag

  • Step4:Individual packaging

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that SI3201-KS is the original manufacturer or agent of SILICON LABS?
We have a professional business development department to strictly test and verify the qualifications of SILICON LABS original manufacturers and agents. All SILICON LABS suppliers must pass the qualification review before they can publish their SI3201-KS devices; we pay more attention to the channels and quality of SI3201-KS products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of SI3201-KS chips? Including SILICON LABS original factory information, Telecom Line Management IC application, SI3201-KS pictures?
You can use Jotrin's intelligent search engine, or filter by Telecom Line Management IC category, or find it through Silicon Laboratories Inc Information page.
Q: Are the SILICON LABS's SI3201-KS price and stock displayed on the platform accurate?
The SILICON LABS's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for SI3201-KS, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of SI3201-KS?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SI3201KS we delivered, we will accept the replacement or return of the SI3201-KS only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of SI3201-KS.
(3)The SI3201-KS is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as SI3201-KS datasheet pdf, SI3201 pin diagram?
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Silicon Laboratories Inc

Silicon Labs, Inc. is a leading provider of networking, software and system solutions for the Internet of Things, Internet infrastructure, industrial control, consumer electronics and automotive markets. We solve the toughest problems in the electronics industry, providing customers with significant...
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