参数资料
型号: UDA1380TT
厂商: NXP SEMICONDUCTORS
元件分类: 消费家电
英文描述: Stereo audio coder-decoder for MD, CD and MP3
中文描述: SPECIALTY CONSUMER CIRCUIT, PDSO32
封装: 6.10 MM, 0.65 MM PITCH, PLASTIC, MO-153, SOT-487-1, TSSOP-32
文件页数: 9/68页
文件大小: 426K
代理商: UDA1380TT
2004 Apr 22
17
NXP Semiconductors
Product specification
Stereo audio coder-decoder
for MD, CD and MP3
UDA1380
handbook, full pagewidth
MGU532
BASS-BOOST
AND
TREBLE
VOLUME
AND
MUTE
DE-EMPHASIS
VOLUME
AND
MUTE
INTERPOLATION
FILTER
I2S-BUS OUTPUT BLOCK
master
SEL_SOURCE
2fs
1fs
VOLUME
AND
MUTE
DE-EMPHASIS
mixing before
sound features
mixing after
sound features
from
digital
data input
(channel 1)
data from
decimation
filter
(channel 2)
to
inter-
polation
filter
Fig.10 Digital mixer (DAC).
8.8.2
ANALOG MIXER
The analog mixer, which uses the mixer input of the FSDAC, can mix a signal into the FSDAC output signal via an AVC
unit (see Fig.11). The mixer can be used to mix a signal into the FSDAC output signal and play it via the headphone driver
without the complete coder-decoder running. The analog control range is 0 to
64.5 dB with a gain of 16.5 dB, and mutes
in steps of 1.5 dB (so actually the range is from +16.5 dB to
48 dB plus mute).
handbook, full pagewidth
MGU533
RESISTOR
NETWORK
AVC[5:0] L3 or I2C-bus control bits
enable mixer
(EN_AVC)
to FSDAC
mixer input
PON_AVC
from analog
front-end
Fig.11 Analog mixer configuration.
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