100329PC 参数 Datasheet PDF下载

100329

Test Circuitry

(ECL-to-TTL)

Note 14:

R

T

=

50Ω termination resistive load. When an input or output is being monitored by a scope, R

T

is supplied by the scope’s 50Ω input resistance.

When an input or output is not being monitored, an external 50Ω resistance must be applied to serve as R

T

.

Note 15:

The TTL 3-STATE pull-up switch is connected to

+7V

only for ZL and LZ tests.

Note 16:

TTL and ECL force signals are brought to the DUT via 50Ω coax lines.

Note 17:

V

TTL

is decoupled to ground with 0.1

µF,

V

EE

is decoupled to ground with 0.01

µF

and V

CC

is connected to ground.

FIGURE 3. ECL-to-TTL AC Test Circuit

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