CS42516-DQZR

S/N Ratio, ADCs / DACs (db) Typ:	--
Base Part Number:	CS42516
Supplier Device Package:	64-LQFP (10x10)
Package / Case:	64-LQFP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Digital:	3.13 V ~ 5.25 V
Voltage - Supply, Analog:	4.75 V ~ 5.25 V
Dynamic Range, ADCs / DACs (db) Typ:	114 / 110
Series:	--
Sigma Delta:	Yes
Number of ADCs / DACs:	2 / 6
Resolution (Bits):	24 b
Data Interface:	Serial
Type:	Audio
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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CS42516-DQZR Application Field and Working Principle

CS42516-DQZR is a non-return-to-zero (NRZ) low-voltage differential signalling (LVDS) multirate serial link physical layer integrated circuit (IC) used mainly in data communications applications. The CS42516-DQZR provides an industry standard interface between a physical cabling layer and multiple serial interfaces, such as a Line Interface Unit (LIU) and a framer. It can be used to provide high-speed communication on a single pair of twisted-pair cables, as well as support communication within a local area network (LAN).

The CS42516-DQZR is a highly integrated IC for LVDS physical layer communications that provides the physical layer interface for the functional layers above. It includes a number of useful features, such as jitter-attenuating cable equalization, a programmable Clock Data Recovery (CDR) circuit, advanced power-saving modes, and a flexible interface to the upper application layers, which allow the CS42516-DQZR to be used in various types of communications applications.

The functioning of the CS42516-DQZR relies mainly on four components: the SerDes, the Equalizer, the CDR and the Latch.The SerDes (Serializer/Deserializer) is a LVDS transceiver that converts parallel data into a serial data stream and vice versa according to the timing of a clock signal. It consists of two pins: a Serial Data Input (SDI) pin and a Serial Clock Input (SCI) pin. The incoming parallel data from the external circuitry is first sent to the SDI pin, where it is converted into serial data using the SCI pin as clock source. The serial data is then sent to the CDR circuit.The Equalizer is a programmable amplifier that amplifies both high- and low-frequency components of the signal. This increases the signal-to-noise ratio in order to compensate for signal distortions and jitters caused by the cable length and conductor resistance.The CDR (Clock Data Recovery) is responsible for recovering the clock signal from the data stream and sending it back to the SerDes so that the data stream can be re-converted back into parallel data. The CDR also serves to detect and correct errors in the data stream and correct them according to predefined error correction algorithms.The Latch is a flip-flop circuit that stores the value of the incoming data for a predefined amount of time and then passes it on to the next stage of the communication chain. The Latch enables the recovery of data from the CDR, thus allowing communication at higher speeds.The CS42516-DQZR can be used in various types of communication applications, such as network switch and router interfaces, storage-area networks, automotive Ethernet, and multimedia displays.

In conclusion, the CS42516-DQZR is a highly integrated IC used as physical layer interface in various data communications applications, such as local area networks, and storage-area networks. It works based on four components, namely the SerDes, the Equalizer, the CDR and the Latch, which work together to facilitate the transmission of data across a twisted pair of cables.

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