DESCRIPTION

The SY10/100ELT21 are single differential PECL-to-TTL translators. Because PECL (Positive ECL) levels are used, only +5V and ground are required. The small outline 8-lead SOIC package and low skew single gate design make the ELT21 ideal for applications that require the translation of a clock or data signal where minimal space, low power, and low cost are critical.

The VBB output allow differential single-ended, or AC coupled interface to the device. If used, the VBB output should be bypassed to VCC with a 0.01μF capacitor.

The ELT21 is available in both ECL standards: the 10ELT is compatible with positive ECL 10H logic levels, while the 100ELT is compatible with positive ECL 100K logic levels.

FEATURES

■ 2.5ns typical propagation delay

■ Low power

■ Differential PECL inputs

■ 24mA TTL outputs

■ Flow-through pinouts

■ Available in 8-pin SOIC package