SN64BCT126AN

Series:	64BCT
Packaging:	Tube
Part Status:	Obsolete
Logic Type:	Buffer, Non-Inverting
Number of Elements:	4
Number of Bits per Element:	1
Input Type:	--
Output Type:	3-State
Current - Output High, Low:	15mA, 64mA
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	14-DIP (0.300", 7.62mm)
Supplier Device Package:	14-PDIP
Base Part Number:	64BCT126

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SN64BCT126AN application field and working principle

The SN64BCT126AN is a 3.3 V and 5 V CMOS high-performance differential driver with integrated termination and PECL output levels. It is a member of the SN64BCT family of drivers which is a precision logic family that incorporates an advanced CMOS process and BiCMOS control circuitry to provide low power dissipation, low propagation delay and powerful drive capability. This device is suitable for applications in high speed bus, multi-point systems and high performance D and A/D interfaces.

The SN64BCT126AN differential driver has two independent differential channels that can transmit data with low noise and low skew. It also has low propagation delay that supports high-speed operation. The SN64BCT126AN differential driver is available in an 8-pin TO-220 package with an integrated output termination network. It has a high level of performance and is easy to use and install.

Specifications:

• Low propagation delay
• High pulse formation current and slew rate
• Integrated output termination and PECL output levels
• Integrated power dissipation and power up circuitry
• Compliance with IEEE 802.3ab and PICMG Standards

Applications:

• High speed bus
• High performance D and A/D interfaces
• Telecommunications systems
• Multi-point systems
• Channel buffering
• Computer I/O interfaces

Working Principle:

In a SN64BCT126AN differential driver, the input signal is split into its differential components (current and voltage). These components are then amplified and transmitted to the output in the same form. The SN64BCT126AN differential driver has two differential inputs represented by the signal names signal+ and signal-. When the input voltage applied to one of these signals differs from the signal applied to the other, the outputs become “active”, swinging from their normal logic low to their logic high level. The signal+ and signal- inputs must be symmetric in order to ensure proper operation of the SN64BCT126AN. The SN64BCT126AN differential driver also features an integrated output termination network. This network is used to match the output signals to the transmission lines of the system. The output can be terminated in either 50 or 75 ohms. The termination voltage is adjustable and can be set either high or low. This allows the user to optimize the performance of the output signal. The output of the SN64BCT126AN differential driver is PECL, which stands for Positive ECL. This is different from the negative logic level ECL that is used in some other logic families. PECL logic has a 0.2V to 2V logic threshold, meaning that the output signal must have an amplitude of at least 0.2V in order to be recognized as a valid signal.The SN64BCT126AN is designed to operate in the most demanding high-speed applications with fast rise and fall times and low propagation delay. It is also designed for low power dissipation and is capable of providing 4mA of pulse formation current.The SN64BCT126AN is also compliant with the IEEE 802.3ab and PICMG standards, meaning that it is suitable for applications where compatibility with these standards is required. In conclusion, the SN64BCT126AN is a high performance and low power dissipation differential driver that is suitable for high speed applications and multi-point systems. It has integrated termination, PECL output levels and is compliant with IEEE 802.3ab and PICMG standards.

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