TS34118CS28 RDG Taiwan Semiconductor Integrated Circuit (Small Outline Packages) In Stock
Taiwan Semiconductor TS34118CS28 RDG is a voice-switch speakerphone circuit IC in a 28-pin small outline package integrating full-duplex speech processing for telecom interface applications. In stock worldwide with fast shipping.
- Manufacturer
- Taiwan Semiconductor
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- TS34118CS28 RDG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated full-duplex voice-switching and speakerphone algorithm enabling hands-free telephony without external DSP in a single 28-pin SOP package
- 28-pin small outline SOP footprint compatible with standard SMT reflow profiles, simplifying PCB integration for PBX and PSTN telephone equipment
- Single-chip telecom interface function combining transmit/receive switching, sidetone cancellation, and speaker drive in one compact IC solution
Applications
The TS34118CS28 RDG is a purpose-built speakerphone controller IC used in office PBX systems, VoIP desk phones, and teleconference terminal equipment requiring full-duplex voice switching in a single compact IC. It handles automatic sidetone suppression, transmit/receive direction switching, and loudspeaker output drive, reducing the external component count needed to build compliant PSTN or VoIP telephone interfaces. Engineers also integrate it into intercom modules and DECT base stations where a 28-pin SOP form factor and low quiescent current consumption are important design constraints.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What telecom function does the TS34118CS28 RDG integrate and which circuit building blocks does it replace?
The TS34118CS28 RDG integrates a full-duplex voice-switch speakerphone circuit that replaces separate transmit/receive switching logic, sidetone cancellation networks, and loudspeaker amplifier stages — typically saving 5 to 10 discrete components versus a fully discrete PSTN speakerphone front-end design.
Which package does the TS34118CS28 RDG use and how does the 28-pin count affect PCB layout?
The TS34118CS28 RDG is housed in a 28-pin small outline package (SOP-28), a standard SMT form factor with 1.27 mm pin pitch and a body width of approximately 7.5 mm, which fits comfortably on a typical telephone PCB without requiring large keepout zones around the IC.
For a VoIP desk phone design, how does TS34118CS28 RDG improve full-duplex voice quality versus a half-duplex architecture?
By using TS34118CS28 RDG's integrated full-duplex switching algorithm, the speakerphone circuit can simultaneously amplify received audio and capture near-end speech without audible switching artifacts, achieving voice-activity transition times typically under 5 ms — far better than the 50–100 ms perceptible cut-through delays common in half-duplex designs.
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