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参数资料
| 型号： | PCM1606E |
| 英文描述： | 24-BIT, 192-kHz SAMPLING, 6-CHANNEL, ENHANCED MULTILEVEL, DELTA-SIGMA DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位192 kHz的采样，6通道，加强多层次，Δ-Σ数字到模拟转换器 |
| 文件页数： | 14/27页 |
| 文件大小： | 385K |
| 代理商： | PCM1606E |
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PCM1606
SLES014B – OCTOBER 2001 – REVISED AUGUST 2002
21
www.ti.com
APPLICATION INFORMATION
D/A output filter circuits
Delta-sigma D/A converters utilize noise shaping techniques to improve in-band signal-to-noise ratio (SNR)
performance at the expense of generating increased out-of-band noise above the Nyquist frequency, or fS/2.
The out-of-band noise must be low-pass filtered in order to provide optimal converter performance. This is
accomplished by a combination of on-chip and external low-pass filtering.
Figure 30 and Figure 31 show the recommended external low-pass active filter circuits for dual- and
single-supply applications. These circuits are 2nd-order Butterworth filters using the multiple feedback (MFB)
circuit arrangement, which reduces sensitivity to passive component variations over frequency and
temperature. For more information regarding MFB active filter design, see your local Texas Instruments sales
office.
Because the overall system performance is defined by the quality of the D/A converters and their associated
analog output circuitry, high-quality audio op amps are recommended for the active filters. Texas Instruments’
OPA2134 and OPA2353 dual op amps are shown in Figure 30 and Figure 31, and are recommended for use
with the PCM1606.
2
3
1
OPA2134
–
+
VOUT
R4
C2
C1
R3
R2
R1
VIN
A
V [*
R
2
R
1
Figure 30. Dual-Supply Filter Circuit
2
3
1
OPA2134
–
+
VOUT
R4
C2
C1
R3
R2
R1
VIN
A
V [*
R
2
R
1
OPA337
–
+
PCM1606
VCOM
C2
10
F
+
To Additional
Low-Pass Filter
Circuits
Figure 31. Single-Supply Filter Circuit
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| PCM3794RHBRG4 | SPECIALTY TELECOM CIRCUIT, PQCC32 |
| PCM3794RHBR | SPECIALTY TELECOM CIRCUIT, PQCC32 |
| PCM3794RHBTG4 | SPECIALTY TELECOM CIRCUIT, PQCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCM1606E/2K | 功能描述:音频数/模转换器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1606E/2KG4 | 功能描述:音频数/模转换器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1606EG/2K | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| PCM1606EG4 | 功能描述:音频数/模转换器 IC 24Bit/192kHz Smplg 6Ch Enh Mltl D-S DAC RoHS:否 制造商:Texas Instruments 转换器数量: 分辨率:16 bit 接口类型:I2S, UBS 转换速率: 信噪比:98 dB 工作电源电压:5 V DAC 输出端数量:2 工作温度范围:- 25 C to + 85 C 电源电流:23 mA 安装风格:SMD/SMT 封装 / 箱体:TQFP-32 封装:Reel |
| PCM1606IDBRMO | 制造商:Texas Instruments 功能描述: |
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