DG401/403/405

Siliconix

S-53748—Rev. E, 05-Jun-97

9

Applications

DG403

Right

Right

Left

Left

Channel

Select

Source 1

Source 2

TTL

Left

Right

–15 V

+15 V

+5 V

GND

V–

V+

DG403

Integrate/

Reset

Slope

Select

TTL

+

–

–15 V

+15 V

+5 V

GND

V–

V+

Figure 9.

Stereo Source Selector

Figure 10. Dual Slope Integrator

Stereo Source Selector:

A single logic signal controls the status of all four switches of

the

device,

simplifying

stereo

source

switching.

The low on-resistance (<35

W) minimizes total harmonic

distortion.

Dual Slope Integrators:

The DG403 is well suited to configure a selectable slope

integrator. One control signal selects the timing capacitor

in preparation for the next integration cycle.

Band-Pass Switched Capacitor Filter:

Single-pole double-throw switches are a common element

for switched capacitor networks and filters. The fast

switching times and low leakage of the DG403 allow for

higher clock rates and consequently higher filter operating

frequencies.

–15 V

+15 V

+5 V

GND

V–

V+

Clock

+

–

DG403

Figure 11. Band-Pass Switched Capacitor Filter