www.ti.com

4:1

100

Ω

100

Ω

RLOAD

50

Ω

AGND

IOUT2

IOUT1

Single-Ended Configuration

50

Ω

25

Ω

RLOAD

50

Ω

AGND

IOUT2

IOUT1

DAC5662-EP

SGLS340A – JUNE 2006 – REVISED OCTOBER 2006

APPLICATION INFORMATION (continued)

Figure 22. Driving a Doubly-Terminated 50-

Ω Cable Using a 4:1 Impedance Ratio Transformer

Figure 23 shows the single-ended output configuration, where the output current IOUT1 flows into an equivalent

load resistance of 25

Ω. Node I

OUT2 should be connected to AGND or terminated with a resistor of 25 Ω to

AGND. The nominal resistor load of 25

Ω gives a differential output swing of 1 V

PP when applying a 20-mA

full-scale output current.

Figure 23. Driving a Doubly-Terminated 50-

Ω Cable Using a Single-Ended Output

21

Submit Documentation Feedback