TS4657

Electrical characteristics

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THD+N: total harmonic distortion and noise-to signal-ratio is expressed in dB. It is given by:

SINAD: signal and noise distortion is expressed in dB. The equation is given by:

DR: dynamic range is expressed in dB, with the following equation:

3.4

Digital filter characteristics

THD

N

+

dB

10

VH

i

2

i2

=

k

∑

V

noise

2

+

V

outrms

2

------------------------------------------------

log

=

SINAD

dB

10

V

outrms

2

VH

i

2

i2

=

k

∑

V

noise

2

+

------------------------------------------------

log

=

DR

dB

10

VH

i

2

i1

=

k

∑

V

noise

2

----------------------

log

=

Table 8.

Symbol

Parameter

Min.

Typ.

Max.

Unit

-

Passband edge (-3 dB)

0.48Fs

-

Passband ripple f < 0.45 Fs

+/- 0.1

dB

-

Stopband attenuation f > 0.55 Fs

-50

dB