参数资料
型号: MAS3587F
厂商: Electronic Theatre Controls, Inc.
元件分类: 通用总线功能
英文描述: MPEG Layer 3 Audio Encoder/Decoder
中文描述: MPEG层3音频编码器/解码器
文件页数: 20/83页
文件大小: 734K
代理商: MAS3587F
MAS 3587F
ADVANCE INFORMATION
20
Micronas
Table 3
3:
Direct Configuration Registers
I
2
C Sub-
address
(hex)
Function
Name
6A
Control Register
(reset value = 3000
hex
)
bit[15:14]
Analog Supply Voltage Range
Code
00
01
10
11
AGNDC
1.1 V
1.3 V
1.6 V
reserved
recommended for voltage range of AVDD
2.0 ... 2.4 V (reset)
2.4 ... 3.0 V
3.0 ... 3.6 V
reserved
Higher voltage ranges permit higher output levels and thus a better signal-to-
noise ratio.
bit[13]
bit[12]
enable DC/DC 2 (reset=1)
enable DC/DC 1 (reset=1)
Both DC/DC converters are switched on by default.
bit[11]
bit[10]
enable and reset audio codec
enable and reset DSP core
For normal operation (MPEG-decoding and D/A conversion), both, the DSP
core and the audio codec have to be enabled after the power-up procedure.
The DSP can be left off if an audio signal is routed from the analog inputs to
the analog outputs (set bit[15] in codec register 00 0F
hex
). The audio codec
can be left off if the DSP uses digital inputs and outputs only.
bit[9]
bit[8]
reset codec
reset DSP core
bit[7]
1)
bit[6:0]
reserved, must be set to zero
reserved, must be set to zero
CONTROL
1)
usage in the next version: enable XTAL input clock divider (extended crystal range up to 28 MHz)
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