TP3420AN308

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Function:	--
Interface:	ISDN
Voltage - Supply:	4.75 V ~ 5.25 V
Current - Supply:	--
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	20-DIP (0.300", 7.62mm)
Supplier Device Package:	20-DIP
Includes:	--
Base Part Number:	TP3420

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Application Field and Working Principle of TP3420AN308

TP3420AN308 is an integrated circuit designed by Texas Instruments. It is a low-power, high-performance 4-slot time-division multiplexing (TDM) compatible transceiver used in digital public networks and modern local access applications. The TP3420AN308 provides an economical interfacing solution for time division multiplex switching and transmission equipment. This integrated circuit can provide superior performance for many applications such as digital data service exchanges, digital transmission interfaces, packet switching nodes and other data communications applications.

Features

The TP3420AN308 interface IC is a highly integrated, low-power, high-performance 4-slot TDM compatible transceiver that offers the following features:

• Integrated 4 polyphase filter
• 8kΩ differential input and output impedance
• Wide supply voltage range (1.65 V to 3.6 V)
• Low power standby mode (< 1.5 µA)
• High performance clock recovery
• High jitter tolerance
• Programmable gain control from −31 dB to +3 dB
• Programmable input/output level offset range from −120 dBm to +30 dBm
• Independent loopback for each input/output channel
• 6 language source code available for customization

Working Principle

The working principle of the TP3420AN308 interface IC is based on the Time-Division Multiplexing (TDM) architecture. TDM is an efficient method of transmitting data in which several signals are packed together in one communication channel. It divides the available data into parts called frames, each frame containing several bits. Each frame contains the same number of bits and is repeated continually. The frames are transmitted sequentially, one after the other, forming a continuous stream.The TP3420AN308 interface IC operates in accordance with the TDM architecture. It uses a four-slot TDM channel, where each channel requires two input/output ports or pins. The incoming data from each port is encoded into a multi-bit code, then multiplexed into one time-domain packet which is transmitted through time-division multiplexing. The TP3420AN308 then acts as the digital-to-analog interface, receiving the encoded and multiplexed data stream and transforming it back into an analog signal.The TP3420AN308 interface IC provides low-power, high-performance transmission with an operating frequency range of 15 kHz to 1000 kHz. The device offers jitter tolerance of up to 750 ps and a gain control range of –31 dB to +3 dB, enabling wide dynamic range operation from –120 dBm to +30 dBm. Its low supply voltage range (1.65 V to 3.6 V) and low standby current mode (< 1.5 μA) features also make this device ideal for battery-powered and portable applications. Finally, the device comes with 6 language source code, allowing for easy customization for various applications.

Conclusion

The TP3420AN308 is an advanced interface IC developed by Texas Instruments and designed for use in digital public networks, packet switching nodes and other data communications systems. It is a low-power, high-performance 4-slot TDM compatible transceiver with a wide range of features, such as 8kΩ differential input and output impedance, wide supply voltage range (1.65 V to 3.6 V), low power standby mode (< 1.5 μA), high performance clock recovery, jitter tolerance and programmable gain control and input/output level offset range. The device also has six language source code available, allowing for easy customization for various applications.

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