TSC2117 datasheet(25/192 Pages) TI

25 / 192 page

5.4.3

DAC Playback on Headphones, Stereo, 48 kHz, DVDD = 1.8 V, AVDD = 3.3 V,

TSC2117

Low-Power Audio Codec With Embedded miniDSP, Stereo Class-D

Speaker Amplifier, and Smart Four-Wire Touch-Screen Controller

www.ti.com

SLAS550A – APRIL 2009 – REVISED JUNE 2009

AOSR = 64, Processing Block = PRB_R11 (Decimation Filter B)

Power consumption = 6.61 mW

Table 5-4. PRB_R11 Alternative Processing Blocks, 6.61 mW

Processing Block

Filter

Estimated Power Change (mW)

PRB_R4

0.07

PRB_R5

0.11

PRB_R6

0.11

PRB_R10

–0.02

PRB_R12

0.01

HVDD = 3.3 V

DOSR = 128, Processing Block = PRB_P7 (Interpolation Filter B)

Power consumption = 24.28 mW

Table 5-5. PRB_P7 Alternative Processing Blocks, 24.28 mW

Processing Block

Filter

Estimated Power Change (mW)

PRB_P1

1.34

PRB_P2

2.86

PRB_P3

2.11

PRB_P8

1.18

PRB_P9

0.53

PRB_P10

1.89

PRB_P11

0.87

PRB_P23

1.48

PRB_P24

2.89

PRB_P25

3.23

DOSR = 64, Processing Block = PRB_P7 (Interpolation Filter B)

Power consumption = 24.5 mW

Table 5-6. PRB_P7 Alternative Processing Blocks, 24.5 mW

Processing Block

Filter

Estimated Power Change (mW)

PRB_P1

1.17

PRB_P2

2.62

PRB_P3

PRB_P8

0.99

PRB_P9

0.5

PRB_P10

1.46

PRB_P11

0.66

PRB_P23

1.43

PRB_P24

2.69

PRB_P25

2.92

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