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參數(shù)資料
| 型號： | PCM4108CPAPR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH-PERFORMANCE, 24-BIT, 216kHz SAMPLING, EIGHT-CHANNEL AUDIO DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 高性能，24位，216kHz的最大采樣，八聲道音頻數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 15/39頁 |
| 文件大小： | 551K |
| 代理商： | PCM4108CPAPR |
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SBAS354 JUNE 2005
www.ti.com
15
Digital
Filtering
and
Functions
Audio
Serial
Port
SPI Port
and
Control
V
OUT
1+
V
OUT
1
V
OUT
2+
V
OUT
2
V
OUT
3+
V
OUT
3
V
OUT
4+
V
OUT
4
Digital
Power
Analog
Power
System Clock
and
Timing
V
CC
1
AGND1
V
CC
2
AGND2
V
DD
V
DD
DGND
References
V
REF
1+
V
REF
1
V
REF
2+
V
REF
2
V
COM
1
V
REF
3+
V
REF
3
V
REF
4+
V
REF
4
V
COM
2
D/AConverter
and
Output Filter
D/AConverter
and
Output Filter
D/AConverter
and
Output Filter
D/AConverter
and
Output Filter
V
OUT
5+
V
OUT
5
V
OUT
6+
V
OUT
6
V
OUT
7+
V
OUT
7
V
OUT
8+
V
OUT
8
D/AConverter
and
Output Filter
D/AConverter
and
Output Filter
D/AConverter
and
Output Filter
D/AConverter
and
Output Filter
LRCK
BCK
DATA0
DATA1
DATA2
DATA3
SCKI
RST
MUTE
SUBA
SUBB
CSA
CSB
CCLK
CDIN
CDOUT
MODE
Figure 2. PCM4108 Functional Block Diagram for Software Mode
ANALOG OUTPUTS
The PCM4108 provides eight differential voltage outputs,
corresponding to audio channels 1 through 8. Refer to the
Terminal Functions table for a pin listing.
Each differential output is typically capable of providing
6.15V full-scale (differential) into a 600
output load. The
output pins are internally biased to the common-mode (or
bipolar zero) voltage, which is nominally V
CC
/2. The output
section of each D/A converter channel includes a
single-pole, switched capacitor low-pass filter circuit. The
switched capacitor filter response tracks with the sampling
frequency of the D/A converter and provides attenuation of
the out-of-band noise produced by the delta-sigma
modulator. An external two-pole continuous time filter is
recommended to further reduce the out-of-band noise
energy and to band limit the output spectrum to
frequencies suitable for audio reproduction. Refer to the
Applications Information
section of this data sheet for
recommended output filter circuits.
VOLTAGE REFERENCES
The PCM4108 includes high and low reference pins for the
output channels. V
REF
1+ (pin 7) and V
REF
1 (pin 6)
correspond to Channels 1 and 5. V
REF
2+ (pin 42) and
V
REF
2 (pin 43) correspond to Channels 2 and 6. V
REF
3+
(pin 55) and V
REF
3 (pin 56) correspond to Channels 3
and 7. V
REF
4+ (pin 58) and V
REF
4 (pin 57) correspond to
Channels 4 and 8.
The high reference (+) pin may be connected to the
corresponding V
CC
supply or an external +5.0V reference,
while the low reference () pin is connected to analog
P
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PCM4108CPAPT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH-PERFORMANCE, 24-BIT, 216kHz SAMPLING, EIGHT-CHANNEL AUDIO DIGITAL-TO-ANALOG CONVERTER |
| PCM4108PAPR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH-PERFORMANCE, 24-BIT, 216kHz SAMPLING, EIGHT-CHANNEL AUDIO DIGITAL-TO-ANALOG CONVERTER |
| PCM4108PAPT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH-PERFORMANCE, 24-BIT, 216kHz SAMPLING, EIGHT-CHANNEL AUDIO DIGITAL-TO-ANALOG CONVERTER |
| PCM-410A | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:Riser Card & I/O Modules |
| PCM-410A-00A1E | 制造商:ADVANTECH 制造商全稱:Advantech Co., Ltd. 功能描述:Riser Card & I/O Modules |
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