Power Supply Bypassing

TS615

27/36

Figure 64 shows a schematic of a 5V single power supply configuration

8.2 Channel separation and crosstalk

Figure 65 shows an example of crosstalk from one amplifier to a second amplifier. This phenomenon,

accentuated at high frequencies, is unavoidable and intrinsic to the circuit itself.

Nevertheless, the PCB layout also has an effect on the crosstalk level. Capacitive coupling between

signal wires, distance between critical signal nodes and power supply bypassing are the most significant

factors.

Figure 64. Circuit for +5V single supply

+

_

R2

820

Ω

IN

+5V

Rload

OUT

910

Ω

10

µF

+ 1

µF

½ TS615

100

µF

R1

820

Ω

+5V

10nF

Rin

1k

Ω

+

Rs

+

_

R2

820

Ω

IN

+5V

Rload

OUT

910

Ω

10

µF

+ 1

µF

½ TS615

100

µF

R1

820

Ω

+5V

10nF

Rin

1k

Ω

+

Rs

10k

100k

1M

10M

-130

-120

-110

-100

-90

-80

-70

-60

-50

Frequency (Hz)