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參數(shù)資料
| 型號(hào)： | PCM1601Y |
| 英文描述： | 24-Bit, 96kHz Sampling, 6-Channel, Enhanced Multi-Level, Delta-Sigma DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 24位，96kHz采樣，6通道，增強(qiáng)的多級(jí)，Δ-Σ數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 27/28頁 |
| 文件大?。?/td> | 253K |
| 代理商： | PCM1601Y |
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PCM1600, PCM1601
0
1
2
3
4
5
6
7
8
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
Frequency (f
S
)
FIGURE 20. Quantization Noise Spectrum.
0
100
200
300
400
500
600
125
120
115
110
105
100
95
90
85
80
D
Jitter (ps)
CLOCK JITTER
FIGURE 21. Jitter Sensitivity.
FIGURE 19. Eight-Level Delta-Sigma Modulator.
THEORY OF OPERATION
The delta-sigma section of PCM1600 is based on a 8-level
amplitude quantizer and a 4th-order noise shaper. This
section converts the oversampled input data to 8-level delta-
sigma format.
A block diagram of the 8-level delta-sigma modulator is
shown in Figure 19. This 8-level delta-sigma modulator has
the advantage of stability and clock jitter sensitivity over the
typical one-bit (2 level) delta-sigma modulator.
The combined oversampling rate of the delta-sigma modu-
lator and the internal 8x interpolation filter is 64f
S
for all
system clock combinations (256/384/512/768f
S
).
The theoretical quantization noise performance of the
8-level delta-sigma modulator is shown in Figure 20. The
enhanced multi-level delta-sigma architecture also has ad-
vantages for input clock jitter sensitivity due to the multi-
level quantizer, with the simulated jitter sensitivity shown in
Figure 21.
KEY PERFORMANCE PARAM-
ETERS AND MEASUREMENT
This section provides information on how to measure key
dynamic performance parameters for the PCM1600 and
PCM1601. In all cases, an Audio Precision System Two
Cascade or equivalent audio measurement system is utilized
to perform the testing.
TOTAL HARMONIC DISTORTION + NOISE
Total Harmonic Distortion + Noise (THD+N) is a significant
figure of merit for audio D/A converters, since it takes into
account both harmonic distortion and all noise sources
within a specified measurement bandwidth. The true rms
value of the distortion and noise is referred to as THD+N.
For the PCM1600 and PCM1601 D/A converters, THD+N is
measured with a full scale, 1kHz digital sine wave as the test
stimulus at the input of the DAC. The digital generator is set
+
Z
–1
8-Level Quantizer
+
Z
–1
+
Z
–1
–
+
Z
–1
+
+
8f
S
64f
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCM1700U-K | Dual 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
| PCM1700U-J | Dual 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
| PCM1700 | Dual 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
| PCM1700P | Dual 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
| PCM1700P-J | Dual 18-Bit Monolithic Audio DIGITAL-TO-ANALOG CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1601Y/1K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:D/A CONVERTER |
| PCM1602 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit, 192kHz Sampling, 6-Channel, Enhanced Multilevel, Delta-Sigma DIGITAL-TO-ANALOG CONVERTER |
| PCM1602 CL001 | 制造商:Alpha Wire Company 功能描述:CBL 2COND 16AWG CLR 1000' |
| PCM1602 CL005 | 制造商:Alpha Wire Company 功能描述:CBL 2COND 16AWG CLR 100' |
| PCM1602A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit, 192-kHz Sampling, 6-Channel, Enhanced Multilevel, Delta-Sigma Digital-to-Analog Converter |
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