DRV134 Datasheet, PDF (14/30 Pages) Burr-Brown (TI) – AUDIO BALANCED LINE DRIVERS

DRV134, DRV135
SBOS094B – JANUARY 1998 – REVISED DECEMBER 2014
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Device Functional Modes (continued)
8.4.2 Single-Ended Mode
The DRV134 can be operated in single-ended mode without degrading output drive capability. Single-ended
operation requires that the unused side of the output pair be grounded (both the V_O and Sense pins) to a low
impedance return path. Gain remains +6 dB. Grounding the negative outputs as shown in Figure 28 results in a
non-inverted output signal (G = +2) while grounding the positive outputs gives an inverted output signal (G = –2).
V+
V_IN
6
4
7
8
DRV134
600Ω
V_OUT = 2V_IN
1
2
35
G = +6dB
V–
Figure 28. Typical Single-Ended Application
For best rejection of line noise and hum differential mode operation is recommended. However, single-ended
performance is adequate for many applications. In general single ended performance is comparable to
differential mode (see THD+N typical performance curves), but the common mode and noise rejection inherent in
balanced-pair systems is lost.
14
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