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參數(shù)資料
| 型號(hào)： | PCM4104PFBT |
| 英文描述： | High-Performance, 24-Bit, 216kHz sampling, Four-channel Audio Digital-to-Analog Converter |
| 中文描述： | 高性能24位，216kHz的采樣，四通道音頻數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 14/36頁 |
| 文件大小： | 486K |
| 代理商： | PCM4104PFBT |
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SBAS291C AUGUST 2003 REVISED DECEMBER 2004
www.ti.com
14
LRCK
BCK
DATA0
DATA1
SCKI
RST
MUTE
SUB
CS
CCLK
CDIN
CDOUT
MODE
V
REF
1+
V
OUT
1+
V
OUT
1
V
REF
1
V
COM
1
V
REF
2+
V
OUT
2+
V
OUT
2
V
REF
2
V
REF
3+
V
OUT
3+
V
OUT
3
V
REF
3
V
COM
2
V
REF
4+
V
OUT
4+
V
OUT
4
V
REF
4
Digital
Filtering
and
Functions
Audio
Serial
Port
Control
and
SPI Port
Digital
Power
Analog
Power
System Clock
and
Timing
V
CC
1
AGND1
V
CC2
1
AGND2
V
DD
DGND
V
DD
D/A Converter
and
Output Filter
D/A Converter
and
Output Filter
D/A Converter
and
Output Filter
D/A Converter
and
Output Filter
Figure 2. PCM4104 Functional Block Diagram for Software Mode
ANALOG OUTPUTS
The PCM4104 provides four differential voltage outputs,
corresponding to audio channels 1 through 4. V
OUT
1+ (pin
1) and V
OUT
1 (pin 2) correspond to Channel 1. V
OUT
2+
(pin 47) and V
OUT
2 (pin 46) correspond to Channel 2.
V
OUT
3+ (pin 38) and V
OUT
3 (pin 39) correspond to
Channel 3. V
OUT
4+ (pin 36) and V
OUT
4 (pin 35)
correspond to Channel 4.
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 PCM4104 includes high and low reference pins for
each output channel. V
REF
1+ (pin 5) and V
REF
1 (pin 4)
correspond to Channel 1. V
REF
2+ (pin 44) and V
REF
2 (pin
43) correspond to Channel 2. V
REF
3+ (pin 41) and V
REF
3
(pin 42) correspond to Channel 3. V
REF
4+ (pin 32) and
V
REF
4 (pin 33) correspond to Channel 4.
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
ground. A 0.01
μ
F bypass capacitor should be placed
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| PCM4104PFBTG4 | 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC High-End 24-Bit 192kHz 4-Ch D-S DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM4108 | 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 |
| PCM4108CPAPR | 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 |
| 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 |
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