IC DGTL AUDIO PWM PROC 64-TQFP

TAS5508APAG

Manufacturer Part NumberTAS5508APAG
DescriptionIC DGTL AUDIO PWM PROC 64-TQFP
ManufacturerTexas Instruments
TypePWM Processor
TAS5508APAG datasheet
 


Specifications of TAS5508APAG

ApplicationsDVDMounting TypeSurface Mount
Package / Case64-TQFP, 64-VQFPFor Use WithTAS5342DDV6EVM - TAS5342DDV6EVMTAS5508-5142K7EVM - EVAL MODULE FOR TAS5508B/TAS5142TAS5508-5122C6EVM - EVAL MODULE FOR TAS5508B/TAS5122TAS5508-5121K8EVM - EVAL MODULE FOR TAS5508B/TAS5121
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names296-17475
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TAS5508A
8-Channel Digital Audio PWM Processor
SLES119A – FEBRUARY 2004 – REVISED JULY 2009
L and R
Sub
The bass and treble filters use a soft update rate that does not produce artifacts during adjustment.
FS
FILTER SET 1
FILTER SET 2
(kHz)
BASS
TREBLE
BASS
32
42
917
83
38
49
1088
99
44.1
57
1263
115
48
63
1375
125
88.2
115
2527
230
96
125
2750
250
176.4
230
5053
459
192
250
5500
500
2
The I
C registers that control bass and treble are:
Bass and treble bypass register (0x89–0x90, channels 1–8)
Bass and treble slew rates (0xD0)
Bass filter sets 1–5 (0xDA)
Bass filter index (0xDB)
Treble filter sets 1–5 (0xDC)
Treble filter index (0xDD)
2.7
Volume, Automute, and Mute
The TAS5508A provides individual channel and master volume controls. Each control provides an
adjustment range of 18 dB to –100 dB in 0.25-dB increments. This permits a total volume device control
range of 36 dB to –100 dB plus mute. The master volume control can be configured to control six or eight
channels.
The TAS5508A has a master soft mute control that can be enabled by a terminal or I
device also has individual channel soft mute controls that are enabled via I
The soft volume and mute update rates are programmable. The soft adjustments are performed using a
soft-gain linear update with an I
soft-gain step size can be varied from 0.5 to 0.003906.
STEP SIZE (GAIN)
Time to go from 36.124 db to –127 dB in ms
Time to go from 18.062 db to –127 dB in ms
Time to go from 0 db to –127 dB in ms
2.8
Automute and Mute
The TAS5508A has individual channel automute controls that are enabled via the I
separate detectors can trigger the automute:
Input automute: All channels are muted when all 8 inputs to the TAS5508A are less in magnitude than
the input threshold value for a programmable amount of time.
30
Description
Table 2-4. Bass and Treble Filter Selections
3-dB CORNER FREQUENCIES
FILTER SET 3
TREBLE
BASS
TREBLE
1833
125
3000
2177
148
3562
2527
172
4134
2750
188
4500
5053
345
8269
5500
375
9000
10106
689
16538
11000
750
18000
2
C-programmable linear step size at a fixed temporal rate. The linear
Table 2-5
Table 2-5. Linear Gain Step Size
0.5
0.25
0.125
0.0625
10.67
21.33
42.67
85.34
1.33
2.67
5.33
10.67
0.17
0.33
0.67
1.33
FILTER SET 4
FILTER SET 5
BASS
TREBLE
BASS
TREBLE
146
3667
167
173
4354
198
201
5053
230
219
5500
250
402
10106
459
438
11000
500
804
20213
919
875
22000
1000
2
C command. The
2
C.
lists the linear gain step sizes.
0.03125
0.015625
0.007813
0.003906
170.67
340.35
682.70
1365.4
21.33
42.67
85.33
170.67
2.67
5.33
10.67
2
C interface. Two
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4333
5146
5972
6500
11944
13000
23888
26000
21.33