TCD6001 datasheet(21/43 Pages) TRIPATH

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Tripath Technology, Inc. – Preliminary Technical Information

TCD6001 – JL/Rev. 0.9/07.05

A Droop correction filter is included in the TCD6001 to correct for droop and ripple in the frequency response

of the entire signal processing chain. The frequency response of the droop filter for the 1X, 2X, and 4X

sampling modes is shown below.

Figure 3. Frequency response of the Droop Correction Filter

Sampling Rate Control

Addr

22h

Sampling Rate Control

1Xf

1Xs

S4X

S2X

Default

This register allows the user to specify the data-sampling rate (1X, 2X or 4X). When the 1X mode is selected

and the de-emphasis filter is enabled, 1Xf and 1Xs select between 32 kHz, 44.1kHz, and 48 kHz de-

emphasis filters.

Bits

S4X

S2X

1X mode (32 kHz, 44.1 kHz, or 48 kHz)

2X mode (96 kHz)

0 or 1

4X mode (192 kHz)

Bits

1Xf

1Xs

data-sampling rate is 44.1 kHz

data-sampling rate is 32 kHz

data-sampling rate is 48 kHz

not used

If the 2X or the 4X modes are selected, the de-emphasis filter is automatically disabled, and the setting of bit

D6 in the Filter Bypass Control register (address 21h) will be ignored.

Operation Control

Addr

23h

Operation Control

HFR

Default

This register allows the user to specify 2 operational characteristics of the TCD6001:

x 10

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

Frequency in kHz

Total E ffective D roop, A fter C orrection

1x mode

2x mode

4x mode

TCD6001 Datasheet(PDF) 21 Page - Tripath Technology Inc.

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