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Home > Products > Integrated Circuits (ICs) > Interface > Telecom

Silicon Labs SI3010-KS

Name: SI3010-KS
Brand: Silicon Labs
SKU: SI3010-KS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI3010-KS

Manufacturer:: Silicon Labs

Category:: Telecom

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: SI3010-KS.pdf

Description:: IC TELECOM INTERFACE 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI3010-KS from Silicon Laboratories is a globally compliant line-side Direct Access Arrangement (DAA) IC designed for telephone line interface in V.92 modems and fax machines. It delivers 80 dB dynamic range, programmable AC/DC termination, ring detection (13.5–23.65 V_rms), loop current monitoring (10–120 mA), and >5000 V isolation via proprietary capacitive barrier technology.

For engineers reviewing the SI3010-KS datasheet, SI3010-KS pinout, SI3010-KS application, or SI3010-KS equivalent, this page provides verified functional context, validated pin roles, confirmed global regulatory compliance (FCC/TBR21/JATE), and real-world design values for line-side DAA integration with Si3056 system-side devices.

Technical Context

The SI3010-KS implements a fully isolated line-side interface with integrated hybrid, DC termination control, and programmable ring detect threshold (RT = 0 or 1). It operates with Si3056 as system-side controller via serial interface and supports dual-mode ring validation and enhanced caller ID circuitry when paired with optional external components.

It features configurable DC termination voltage (up to 40 V at 60 mA), on-hook leakage <5 µA, and operates across 0–70 °C ambient with 3.3 V supply. Its transhybrid balance and programmable digital gain enable near-end echo reduction without external analog components.

Key Specifications

Parameter	Value and Actual Design Meaning
Dynamic Range	80 dB - Enables high-fidelity voice/fax signal capture over full 300–3400 Hz telephony band with low noise floor.
Isolation Voltage	>5000 V - Meets UL1950 safety requirements; eliminates need for external isolation transformer.
Ring Detect Threshold	13.5–23.65 V_rms - Programmable via RT bit; supports global ring signal standards including FCC and JATE.
Loop Current Range	10–120 mA - Configurable via MINI/ILIM bits; ensures compliance with PTT-specified off-hook current limits.
Supply Voltage	3.0–3.6 V - Single 3.3 V rail powers all digital and charge-pump functions; simplifies power design.
On-Hook Leakage	<5 µA - Guarantees minimal line loading during standby; critical for multi-device line sharing.
Transmit THD	–72 to –78 dB - Maintains signal integrity under varying loop conditions; meets V.92 spectral mask requirements.

Pinout & Package

SI3010-KS is housed in a 16-pin SOIC package (300 mil width), RoHS-compliant and lead-free. Pin assignments are validated per Silicon Labs Rev. 1.06 datasheet Section 8 ("Pin Descriptions: Si3018/19/10") and match Si3010 functional mapping.

Pin/Terminal	Circuit Role	Design Meaning
DCT2	DC Termination Control 2	Configures DC termination mode; used with DCT3/DCT to set loop current and voltage profile.
IGND	Isolation Ground Reference	Reference for isolated side; must be separated from system ground to maintain >5000 V barrier integrity.
DCT3	DC Termination Control 3	Part of 3-bit DC termination configuration; enables fine-grained control of line bias and current limit.
QB	Bridge Quad Output B	Drives one leg of internal 2-to-4-wire hybrid; works with QE/QE2/SC to implement balanced line interface.
QE2	Bridge Quad Output E2	Second hybrid output; enables full-duplex operation with precise transhybrid balance adjustment.
SC	Hybrid Sense Control	Monitors hybrid balance; feeds back to internal calibration logic for real-time echo cancellation tuning.
VREG2	Secondary Regulator Output	Provides regulated voltage for isolated analog circuitry; decoupling required per layout guidelines.
RNG2	Ring Detect Output 2	Secondary ring indicator; used with RNG1 for dual-threshold validation per TBR21/JATE ring signature timing.
QE	Bridge Quad Output E	Primary hybrid output; forms differential pair with QB for tip/ring drive with programmable impedance.
DCT	DC Termination Control	Main DC termination enable; activates internal current source/sink network for loop closure control.
RX	Receive Signal Input	Accepts line-side analog receive signal post-hybrid; routed to Si3056 via isolation barrier for digitization.
IB	Loop Current Monitor	Analog output proportional to loop current; enables real-time current sensing without shunt resistor.
C1B	Capacitor Terminal B	Connects to external capacitor for AC termination tuning; sets impedance matching for specific country line profiles.
C2B	Capacitor Terminal B2	Second AC termination node; used with C1B to configure complex Z_LINE per EN/ITU-T recommendations.
VREG	Regulated Voltage Output	Primary isolated supply rail; powers internal analog blocks; requires 1 µF decoupling per datasheet Figure 17.
RNG1	Ring Detect Output 1	Primary ring indicator; asserts on valid ring waveform detection; triggers interrupt to Si3056 host controller.

Key Features

Feature	Design Value
Programmable AC termination	Enables country-specific line impedance matching (e.g., 600 Ω, 900 Ω) using external C1B/C2B caps without redesign.
Integrated ring detector with validation	Rejects false rings by verifying frequency (13–68 Hz) and amplitude envelope per TBR21 Annex A requirements.
Polarity reversal detection	Identifies line polarity swaps automatically; ensures correct signaling in regions where tip/ring assignment varies.
Enhanced caller ID support	Delivers 6 V_PEAK CID full-scale level with 50 dB dynamic range; compatible with Type I/II protocols and optional 1.5 V_PEAK enhanced mode.
Low-power deep sleep mode	Draws only 1 mA total supply current; maintains ring detect readiness while minimizing system standby power.
Proprietary capacitive isolation	Replaces opto-isolators and transformers; achieves >5000 V isolation with 100-year lifetime and no aging drift.

Applications

V.92 Modems	Fax Machines
Use Scenario: High-speed data transmission over PSTN lines with backward compatibility to V.34/V.22bis standards. IC Role / Device Role / Timing Role: Line-side DAA providing isolated analog interface, hybrid function, and regulatory-compliant ring/loop control. Use Value: Eliminates external transformer and relays; reduces BOM count by 12+ components versus discrete AFE solutions.	Use Scenario: G3 fax transmission with automatic answer, error correction mode (ECM), and distinctive ring detection. IC Role / Device Role / Timing Role: Primary line interface IC handling off-hook detection, pulse/tone dialing, and caller ID decoding. Use Value: Supports simultaneous voice/fax operation via Si3056/SI3010-KS dual-chip architecture with shared serial control bus.
Voice Mail Systems	Multi-function Printers
Use Scenario: Embedded voicemail answering machine with remote access, message playback, and DTMF command recognition. IC Role / Device Role / Timing Role: Line-side signal conditioner and isolation barrier; interfaces directly to codec/DSP for audio path processing. Use Value: Delivers 80 dB dynamic range and <–78 dB THD for high-fidelity voice recording/playback without analog front-end tuning.	Use Scenario: All-in-one printer supporting fax send/receive, scan-to-email, and remote configuration via phone line. IC Role / Device Role / Timing Role: Regulatory-compliant PSTN interface enabling Class 1/2 fax engine and caller ID display functionality. Use Value: Integrates ring detect, line voltage monitor, and polarity reversal detection-reducing firmware complexity for multi-region deployments.

V.92 Modems

Fax Machines

Use Scenario: High-speed data transmission over PSTN lines with backward compatibility to V.34/V.22bis standards.

IC Role / Device Role / Timing Role: Line-side DAA providing isolated analog interface, hybrid function, and regulatory-compliant ring/loop control.

Use Value: Eliminates external transformer and relays; reduces BOM count by 12+ components versus discrete AFE solutions.

Use Scenario: G3 fax transmission with automatic answer, error correction mode (ECM), and distinctive ring detection.

IC Role / Device Role / Timing Role: Primary line interface IC handling off-hook detection, pulse/tone dialing, and caller ID decoding.

Use Value: Supports simultaneous voice/fax operation via Si3056/SI3010-KS dual-chip architecture with shared serial control bus.

Voice Mail Systems

Multi-function Printers

Use Scenario: Embedded voicemail answering machine with remote access, message playback, and DTMF command recognition.

IC Role / Device Role / Timing Role: Line-side signal conditioner and isolation barrier; interfaces directly to codec/DSP for audio path processing.

Use Value: Delivers 80 dB dynamic range and <–78 dB THD for high-fidelity voice recording/playback without analog front-end tuning.

Use Scenario: All-in-one printer supporting fax send/receive, scan-to-email, and remote configuration via phone line.

IC Role / Device Role / Timing Role: Regulatory-compliant PSTN interface enabling Class 1/2 fax engine and caller ID display functionality.

Use Value: Integrates ring detect, line voltage monitor, and polarity reversal detection-reducing firmware complexity for multi-region deployments.

Equivalent & Alternatives

The following parts are listed as comparable options for similar DAA line-side applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si3018-KS	Global line-side device with identical pinout and register map; lacks enhanced CID circuitry and RNG2 validation output.	Supports basic FCC/JATE compliance but not TBR21 Annex A ring validation or enhanced 1.5 V_PEAK CID mode.	Select Si3018-KS for cost-sensitive designs requiring baseline global compliance without advanced caller ID features.
Si3019-KS	Line-side variant with +3.2 dBm TX/RX level mode enabled; includes dedicated billing tone filter and overload detection logic.	Optimized for voice-centric applications (e.g., VoIP gateways) requiring higher signal levels and billing tone immunity.	Choose Si3019-KS when system-level SNR budget demands +3.2 dBm full-scale operation and billing tone rejection is mandatory.

Compared with SI3010-KS, Si3018-KS offers reduced feature set at lower cost, while Si3019-KS adds voice-optimized signal level and filtering-making SI3010-KS the balanced choice for fax/modem applications requiring full TBR21 ring validation and standard CID performance.

Availability

SI3010-KS is available at Aetrix Electronics and suitable for V.92 modems, fax machines, and voice mail systems requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for SI3010-KS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Silicon Laboratories is a fabless semiconductor company specializing in mixed-signal ICs for communications, timing, and embedded systems.

The SI3010-KS belongs to Silicon Labs' Direct Access Arrangement (DAA) product line, engineered specifically for globally compliant, transformerless telephone line interface in cost-sensitive, space-constrained modem and fax applications.

FAQ

What is the primary function of the SI3010-KS in a DAA system?

The SI3010-KS serves as the line-side Direct Access Arrangement IC, providing isolated analog interface to the telephone line-including hybrid, DC/AC termination, ring detection, loop current monitoring, and polarity reversal detection. It pairs exclusively with the Si3056 system-side device to form a complete, transformerless DAA solution. The SI3010-KS handles all physical layer compliance requirements while offloading digital control to Si3056.

Does the SI3010-KS support caller ID functionality, and what are its specifications?

Yes, the SI3010-KS supports both Type I and Type II caller ID protocols. It delivers a 6 V_PEAK full-scale level with 50 dB dynamic range in standard mode, and supports an enhanced 1.5 V_PEAK mode with 62 dB dynamic range when configured with external components per AN67. Caller ID decoding is performed externally by the host DSP; SI3010-KS ensures clean, compliant analog signal delivery to that processor.

How does the SI3010-KS achieve >5000 V isolation without a transformer?

The SI3010-KS uses Silicon Labs' proprietary capacitive isolation technology-a monolithic, silicon-dioxide dielectric barrier integrated into the IC package. This replaces magnetic transformers and opto-isolators while meeting UL1950, IEC 60950, and EN60950-1 reinforced insulation requirements. The isolation barrier separates line-side analog circuitry from the Si3056 interface side, enabling safe, reliable operation at up to 5000 V_DC test voltage.

Can the SI3010-KS operate independently, or does it require a companion IC?

The SI3010-KS cannot operate independently-it is designed exclusively as a line-side companion to the Si3056 system-side DAA IC. All digital control, clock generation, serial interface, and DSP interfacing are handled by Si3056. SI3010-KS receives configuration commands and status requests via the shared serial bus (SCLK/SDI/SDO/FSYNC) and returns analog line data through the isolation barrier. No standalone operation or direct microcontroller interface is supported.

What are the key differences between SI3010-KS and Si3018-KS?

The SI3010-KS adds TBR21 Annex A ring validation (dual RNG1/RNG2 outputs), enhanced caller ID circuitry (supporting 1.5 V_PEAK mode), and finer-resolution loop current monitoring versus Si3018-KS. Both share identical pinout, package, and core DAA functionality-but SI3010-KS targets applications requiring stricter European and Japanese regulatory validation, particularly for multi-ring burst detection and extended CID reliability in noisy environments.

SI3010-KS Specifications

Product attributes: Attribute value

Manufacturer:: Silicon Labs

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Function:: Direct Access Arrangement (DAA)

Interface:: Parallel, SPI, UART

Number of Circuits:: 1

Voltage - Supply:: 3V ~ 3.6V

Current - Supply:: 15mA

Power (Watts):: -

Operating Temperature:: 0°C ~ 70°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

SI3010-KS FAQ

1.How can I place an order for SI3010-KS through Aetrix?

Please submit a Request for Quotation (RFQ) for SI3010-KS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SI3010-KS reliable?

The price and inventory of SI3010-KS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI3010-KS is usually 5 days.

3.What payment methods are accepted for SI3010-KS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI3010-KS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI3010-KS?

SI3010-KS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI3010-KS order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SI3010-KS?

For technical support, including SI3010-KS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI3010-KS requirements.

6.How does Aetrix verify that SI3010-KS is sourced from the original manufacturer or authorized distributors?

All SI3010-KS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SI3010-KS meets industry standards.

7.What is the process for return or replacement of SI3010-KS?

All SI3010-KS units undergo pre-shipment inspection (PSI). If there is an issue with SI3010-KS, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SI3010-KS part is unused and in its original packaging.

Return procedure for SI3010-KS:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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