Datasheet

Micbias

Micdet

MICBIAS

HPR

HPL

VOL/MICDET

TLV320DAC3100

www.ti.com

SLAS671A –FEBRUARY 2010–REVISED MAY 2012

5.5.4.6 Example Setup for DRC

• Digital Vol gain = 12 dB

• Threshold = –24 dB

• Hysteresis = 3 dB

• Hold time = 0 ms

• Attack rate = 1.9531e–4 dB per sample period

• Decay rate = 2.4414e–5 dB per sample period

Script

# Select Page 0

w 30 00 00

# DAC => 12 db gain left

w 30 41 18

# DAC => 12 db gain right

w 30 42 18

# DAC => DRC Enabled for both channels, Threshold = -24 db, Hysteresis = 3 dB

w 30 44 7F

# DRC Hold = 0 ms, Rate of Changes of Gain = 0.5 dB/Fs'

w 30 45 00

# Attack Rate = 1.9531e-4 dB/Frame , DRC Decay Rate =2.4414e-5 dB/Frame

w 30 46 B6

# Select Page 9

w 30 00 09

# DRC HPF

w 30 0E 7F AB 80 55 7F 56

# DRC LPF

W 30 14 00 11 00 11 7F DE

5.5.5 Headphone Detection

The TLV320DAC3100 includes capability to monitor a headphone jack to determine if a plug has been

inserted into the jack. Figure 5-18 shows the circuit configuration to enable this feature.

Figure 5-18. Jack Connections for Headphone Detection

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Product Folder Link(s): TLV320DAC3100