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参数资料
| 型号： | MAS3507D |
| 厂商： | MICRONAS SEMICONDUCTOR HOLDING AG |
| 元件分类： | 通用总线功能 |
| 英文描述： | MPEG 1/2 Layer 2/3 Audio Decoder |
| 中文描述： | 的MPEG 1 / 2 2 / 3层音频解码器 |
| 文件页数： | 28/60页 |
| 文件大小： | 867K |
| 代理商： | MAS3507D |
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MAS 3507D
PRELIMINARY DATA SHEET
28
Micronas
3.6.2. Muting / Bypass Tone Control
To enable fast and simple mute functionality, set bit 0 in register $aa to ‘1’. Writing a ‘0’ deactivates mute.
It is possible to bypass the complete bass / treble / volume control by setting bit 1 in register $aa (write a ‘2’). Reset-
ting bit 1 to ‘0’ enables tone control again.
3.6.3. Bass and Treble Control
Tone control is implemented in the MAS 3507D. It
allows the control of bass and treble in a range up to
±15 dB, as Table 3–9 shows. To prevent overflow or
clipping effects, the prescaler is built-in. The prescaler
decreases the overall gain of the tone filter, so the full
range up to +15 dB is usable without clipping.
To select a special setting, max. 3 coefficients have to
be written into registers of the MAS 3507D. This has to
be done via the ‘write register’ I
2
C command (see
Section 3.3.3.).
Address
R/W
Name
Comment
Default
$aa
r/w
Mute / Bypass
Tone Control
0
1
2
Forces a mute of the digital output
no mute, Tone control active
mute output, but continue decoding
bypass Bass / Treble / Volume matrix
$0
Address
R/W
Name
Comment
Default
$e7
r/w
KPrescale
responsible for prescale of the tone filter (prevent overflows)
(see Section 2.4.3. on page 8)
$80000
$6b
r/w
KBass
responsible for increase / decrease of low frequencies
(see Section 2.4.3. on page 8)
$0
$6f
r/w
KTreble
responsible for increase / decrease of high frequencies
(see Section 2.4.3. on page 8)
$0
相关PDF资料 |
PDF描述 |
|---|---|
| MAS3559F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS35x9F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3509F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3519F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3529F | MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAS3509F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3519F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3529F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3539F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
| MAS3549F | 制造商:MICRONAS 制造商全称:MICRONAS 功能描述:MAS 35x9F MPEG Layer 2/3, AAC Audio Decoder, G.729 Annex A Codec |
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