Interface - Signal Buffers, Repeaters, Splitters

Image Part Number Description / PDF Quantity Rfq
LTC4300A-1CMS8#TRPBF

LTC4300A-1CMS8#TRPBF

Analog Devices, Inc.

IC ACCELERATOR I2C HOTSWAP 8MSOP

2480

ASNT5121E-KMC

ASNT5121E-KMC

ADSANTEC

DATA SIGNAL DISTRIBUTOR 1-TO-3

0

PCA9507D,118

PCA9507D,118

NXP Semiconductors

IC REDRIVER HDMI 1CH 400KHZ 8SO

16681

PCA9513ADP,118

PCA9513ADP,118

NXP Semiconductors

IC ACCELERATR I2C HOTSWAP 8TSSOP

9198

DS80PCI800SQ/NOPB

DS80PCI800SQ/NOPB

Texas Instruments

IC REDRIVER PCIE 8CH 54WQFN

2081

LTC4308IDD#TRPBF

LTC4308IDD#TRPBF

Analog Devices, Inc.

IC ACCELERATOR I2C HOTSWAP 8DFN

0

SN65LVDS108DBTG4

SN65LVDS108DBTG4

Texas Instruments

IC MULTIPLEXER 1CH 38TSSOP

0

TUSB544IRNQT

TUSB544IRNQT

Texas Instruments

IC REDRIVER USB TYPE C 40WQFN

244

LTC1694-1CS5#TRMPBF

LTC1694-1CS5#TRMPBF

Analog Devices, Inc.

IC ACCELERATOR I2C 1CH TSOT23-5

5571

89HP0604QBZBNRG8

89HP0604QBZBNRG8

Renesas Electronics America

IC REDRIVER I2C 4CH 36VFQFPN

0

RPT86FQ

RPT86FQ

Analog Devices, Inc.

LOW POWER PCM REPEATER

1363

TCA4311D

TCA4311D

Texas Instruments

BUFFER AMPLIFIER, 1 FUNC, PDSO8

7541

ASNT6194-KHC

ASNT6194-KHC

ADSANTEC

1 TO 2 ANALOG SPLITTER DIFF.

0

SN65LVPE512RGER

SN65LVPE512RGER

Texas Instruments

IC REDRIVER USB 3.0 2CH 24VQFN

1365

PI3EQX7502BZDE+DA

PI3EQX7502BZDE+DA

Zetex Semiconductors (Diodes Inc.)

IC REDRIVER USB 3.0 1CH 24TQFN

0

SN65LVDS116DGG

SN65LVDS116DGG

Texas Instruments

IC MULTIPLEXER 1CH 64TSSOP

291

LTC4303IMS8#TRPBF

LTC4303IMS8#TRPBF

Analog Devices, Inc.

IC ACCELERATOR I2C HOTSWAP 8MSOP

4505

PI3EQX12802ZHEX

PI3EQX12802ZHEX

Zetex Semiconductors (Diodes Inc.)

12G SAS3 2 PORT 4 CHANNELREDRIVE

0

DS90LV001TM

DS90LV001TM

Texas Instruments

DS90LV001 800-MBPS LVDS BUFFER

285

MAX4951CTP+

MAX4951CTP+

Maxim Integrated

IC REDRIVER ESATA 1CH 20TQFN

5951275

Interface - Signal Buffers, Repeaters, Splitters

1. Overview

Signal buffers, repeaters, and splitters are critical components in electronic systems for maintaining signal integrity, extending transmission distances, and distributing signals across multiple channels. These ICs act as intermediaries in data pathways, ensuring reliable communication between devices by amplifying weak signals, regenerating degraded waveforms, or dividing input signals into multiple outputs. Their importance has grown exponentially with the rise of high-speed data networks, IoT ecosystems, and advanced industrial automation systems.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Signal BuffersHigh input impedance, low output impedance, signal amplification without inversionMemory address drivers, bus interface circuits
RepeatersSignal regeneration, noise filtering, timing recoveryEthernet extenders, fiber optic communication
SplittersSignal distribution, impedance matching, isolation between outputsHDMI signal distribution, industrial sensor networks

3. Structure and Components

Typical IC construction includes: - Encapsulation: TSSOP, QFN, or BGA packages with 8-100+ pins - Internal Circuitry: Differential amplifiers, Schmitt triggers, termination resistors - Electrical Interface: Support for LVDS, RS-485, HDMI 2.1, or USB 3.2 standards - Thermal Management: Integrated heat spreaders or thermal pads for power dissipation

4. Key Technical Specifications

ParameterImportance
Bandwidth (0.1-10 Gbps)Determines maximum data transfer rate
Propagation Delay (1-50 ns)Impacts system timing synchronization
Signal-to-Noise Ratio (SNR) (>60 dB)Measures transmission clarity
Power Consumption (100mW-2W)Affects thermal design and efficiency
Impedance Matching (50 -100 )Minimizes signal reflections

5. Application Fields

Key industries include: - Telecommunications: 5G base stations, optical network units - Consumer Electronics: Smart TVs, gaming consoles - Industrial Automation: PLC systems, sensor hubs - Automotive: CAN bus extenders, ADAS sensor interfaces - Medical Devices: MRI machine signal routing

6. Leading Manufacturers and Products

ManufacturerProduct SeriesKey Features
Texas InstrumentsSN74LVC1G125Low-voltage buffer with 85MHz bandwidth
NXP SemiconductorsPCA9306I2C bus voltage-level translation
STMicroelectronicsTS3DS12404-channel HDMI buffer with 2.5Gbps per lane

7. Selection Guidelines

Key considerations: - Match bandwidth requirements with application data rates - Verify voltage level compatibility (e.g., 1.8V/3.3V/5V logic) - Assess drive strength needs for connected loads - Consider package type for PCB space constraints - Analyze power budget and thermal management requirements - Evaluate EMI/ESD protection features for harsh environments

8. Industry Trends

Emerging developments include: - Integration with protocol conversion (e.g., USB-C to DisplayPort) - Development of AI-enhanced signal conditioning algorithms - Adoption of advanced packaging (3D stacking, SiP) - Push toward ultra-low power (<1mW standby) designs - Increased demand for automotive-grade parts (AEC-Q100 qualified) - Growth in wireless interface buffer solutions for 6G infrastructure

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