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參數(shù)資料
| 型號： | PCM1712 |
| 英文描述： | DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大小： | 101K |
| 代理商： | PCM1712 |
15
PCM1712
10k
10k
680pF
10k
1500pF
100pF
+
V
SIN
–
5
4
3
2
1
90
0
–90
–180
–270
–360
100
1k
10k
100k
1M
GAIN vs FREQUENCY
Frequency (Hz)
P
6
–14
–34
–54
–74
–94
G
Gain
Phase
TEST CONDITIONS
Figure 15 illustrates the actual test conditions applied to
PCM1712 in production. The 11th-order filter is necessary
in the production environment for the removal of noise
resulting from the relatively long physical distance between
the unit and the test analyzer. In most actual applications, the
third-order filter shown in Figure 14 is adequate. Under
normal conditions, THD+N typical performance is –70dB
with a 30kHz low pass filter (shown here on the THD
meter), improving to –92dB when the external 20kHz sec-
ond-order filter is used.
EVALUATION FIXTURES
An evaluation fixture is available for PCM1712.
DEM-PCM1712
This evaluation fixture is primarily intended for quick evalu-
ation of the PCM1712’s performance. DEM-PCM1712 can
accept either an external clock or a user-installed crystal
oscillator. All of the functions can be controlled by on-board
switches. DEM-PCM1712 does not contain a receiver chip
or an external low pass filter. DEM-PCM1712 requires a
single +5V power supply.
FIGURE 14. 3rd-Order LPF.
FIGURE 15. Test Block Diagram.
PGA
Lch
Rch
DEM-
PCM1712
DAI
11th-order
20kHz
LPF
THD
Meter
0dB/60dB
30KHz LPF on
Through
For test of S/N ratio and Dynamic Range, A-filter ON.
Digital
CD
Player
Test Disk
Shibasoku #725
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCM1712U | DIGITAL-TO-ANALOG CONVERTER |
| PCM1715 | Dual Voltage Output CMOS Delta-Sigma DIGITAL-TO-ANALOG CONVERTER With On-Chip Digital Filter |
| PCM1715U | Dual Voltage Output CMOS Delta-Sigma DIGITAL-TO-ANALOG CONVERTER With On-Chip Digital Filter |
| PCM1716 | 24-Bit, 96kHz Sampling CMOS Delta-Sigma Stereo Audio DIGITAL-TO-ANALOG CONVERTER |
| PCM1717 | Stereo Audio DIGITAL-TO-ANALOG CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCM1712U | 制造商:BB 制造商全稱:BB 功能描述:DIGITAL-TO-ANALOG CONVERTER |
| PCM1714U | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Digital-to-Analog Converter |
| PCM1715 | 制造商:BB 制造商全稱:BB 功能描述:Dual Voltage Output CMOS Delta-Sigma DIGITAL-TO-ANALOG CONVERTER With On-Chip Digital Filter |
| PCM1715U | 制造商:BB 制造商全稱:BB 功能描述:Dual Voltage Output CMOS Delta-Sigma DIGITAL-TO-ANALOG CONVERTER With On-Chip Digital Filter |
| PCM1716 | 制造商:BB 制造商全稱:BB 功能描述:24-Bit, 96kHz Sampling CMOS Delta-Sigma Stereo Audio DIGITAL-TO-ANALOG CONVERTER |
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