參數(shù)資料
型號(hào)： TDA1386
廠商： NXP Semiconductors N.V.
英文描述： Noise shaping filter DAC
中文描述： 噪聲整形濾波器數(shù)模轉(zhuǎn)換器
文件頁(yè)數(shù)： 9/24頁(yè)
文件大?。?/td> 167K
代理商： TDA1386
1998 Jan 06
9
Philips Semiconductors
Product specification
Noise shaping filter DAC
TDA1386T
Volume control
A digital level control is incorporated on the TDA1386T
which performs the function of soft mute and attenuation
(pseudo-static application mode) or soft mute, attenuation,
fade, increment and decrement (microcontroller
application mode). The volume control of both channels
can be varied in small step changes, determined by the
value of the internal fade counter according to:
Audio level = counter
×
maximum level/120.
Where the counter is a 7-bit binary number between
0 and 120. The time taken for mute to vary from 120 to 0
is 120/f
s
. For example, when f
s
= 44.1 kHz, the time taken
is approximately 3 ms.
V
OLUME CONTROL IN PSEUDO
-
STATIC APPLICATION MODE
In the pseudo-static application mode (APPL = logic 0) the
digital audio output level is controlled by APP0
(attenuation) and APP2 (mute) so only the final volume
levels full scale, 12 dB (attenuate) and mute (
infin dB)
can be selected. The mute function has priority over the
attenuation function. Accordingly, if MUSB is LOW, the
state of ATSB has no effect. An example of volume control
in this application mode is illustrated in Fig.5.
Fig.5 Volume control; pseudo-static application mode.
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參數(shù)描述
TDA1386T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Noise shaping filter DAC
TDA1387 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stereo Continuous Calibration DAC CC-DAC
TDA1387T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stereo Continuous Calibration DAC CC-DAC
TDA1387TD-T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Digital-to-Analog Converter
TDA1388 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Bitstream continuous calibration filter-DAC for CD-ROM audio applications
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