−0.00010

−0.00008

−0.00006

−0.00004

−0.00002

0.00000

0.00002

0.00004

0.00006

0.00008

0.00010

0.0

0.1

0.2

0.3

0.4

0.5

Frequency (x fS)

G033

−120

−100

−80

−60

−40

−20

0

0

1

2

3

4

Frequency (x fS)

G011

−0.6

−0.4

−0.2

0.0

0.2

0.4

0.6

0.8

1.0

0

50

100

150

200

250

300

350

400

Samples

G022

PCM5100A, PCM5101A, PCM5102A

PCM5100A-Q1, PCM5101A-Q1, PCM5102A-Q1

www.ti.com

SLAS859C – MAY 2012 – REVISED MAY 2015

The low-latency x8 / x4 / x2 / x1 (bypass) interpolation filter is programmed for sample rates from 8 kHz to 384

kHz.

Table 7. Low Latency x8 Interpolation Filter

Parameter

Condition

Value (Typ)

Units

Filter gain pass band

0 ……. 0.45fS

±0.0001

dB

Filter gain stop band

0.55fS ….. 7.455fS

–52

dB

Filter group delay

3.5tS

s

Figure 24. Low Latency x8 Interpolation Filter Frequency

Figure 25. Low Latency x8 Interpolation Filter Impulse

Response

Response

Figure 26. Low Latency x8 Interpolation Filter Passband Ripple

Copyright © 2012–2015, Texas Instruments Incorporated

Submit Documentation Feedback

21

Product Folder Links: PCM5100A PCM5101A PCM5102A PCM5100A-Q1 PCM5101A-Q1 PCM5102A-Q1