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參數資料
| 型號： | PCM1772 |
| 元件分類： | DAC |
| 英文描述： | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
| 中文描述： | 低電壓和低功耗立體聲音頻數模轉換器與線路輸出AMPIIFIER |
| 文件頁數： | 26/29頁 |
| 文件大小： | 309K |
| 代理商： | PCM1772 |
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SLES010D – SEPTEMBER 2001 – REVISED MAY 2004
www.ti.com
26
APPLICATION INFORMATION
CONNECTION DIAGRAMS
Figure 29 shows the basic connection diagram with the necessary power supply bypassing and decoupling components.
It is recommended that the component values shown in Figure 29 be used for all designs.
The use of series resistors (22
to 100
) is recommended for the MCKI, LRCK, BCK, and DATA inputs. The series resistor
combines with the stray PCB and device input capacitance to form a low-pass filter that reduces high-frequency noise
emissions and helps to dampen glitches and ringing present on the clock and data lines.
POWER SUPPLIES AND GROUNDING
The PCM1772 and PCM1773 devices require a 2.4-V typical analog supply for V
CC1
and V
CC2
. These 2.4-V supplies
power the DAC, analog output filter, and other circuits. For best performance, these 2.4-V supplies must be derived from
the analog supply using a linear regulator, as shown in Figure 29.
Figure 29 shows the proper power supply bypassing. The 10-
μ
F capacitors must be tantalum or aluminum electrolytic,
while the 0.1-
μ
F capacitors are ceramic (X7R type is recommended for surface-mount applications).
LRCK
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
PCM1772
DATA
BCK
PD
AGND1
AGND2
VCOM
VOUTR
SCKI
VOUTL
MS
MC
MD
VCC1
AIN
VCC2
Controller
10
μ
F
1.6 V to 3.6 V
Analog In
Post
LPF
Audio DSP
10
μ
F
10
μ
F
10
μ
F
Power Amplifier
or Headphone
Amplifier
10
μ
F
Post
LPF
Power Amplifier
or Headphone
Amplifier
10
μ
F
Figure 29. Basic Connection Diagram
相關PDF資料 |
PDF描述 |
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| PCM1772PW | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
| PCM1772PWR | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
| PCM1772RGA | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
| PCM1772RGAR | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
| PCM1773 | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM1772PW | 功能描述:音頻數/模轉換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1772PWG4 | 功能描述:音頻數/模轉換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1772PWR | 功能描述:音頻數/模轉換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1772PWRG4 | 功能描述:音頻數/模轉換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1772RGA | 功能描述:音頻數/模轉換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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