參數(shù)資料
型號: PCM1733
英文描述: Stereo Audio DIGITAL-TO-ANALOG CONVERTER 18 Bits, 96kHz Sampling
中文描述: 立體聲音頻數(shù)模轉(zhuǎn)換器18位,96kHz采樣
文件頁數(shù): 6/9頁
文件大?。?/td> 129K
代理商: PCM1733
6
PCM1733
1
2
3
16
17
1/fs
L_ch
R_ch
MSB
LSB
18
LRCIN (pin 1)
BCKIN (pin 3)
AUDIO DATA WORD = 18-BIT
DIN (pin 2)
1
2
3
16
17
MSB
LSB
18
2
1
16
17
18
1
2
3
16
17
1/fs
L_ch
R_ch
MSB
LSB
18
LRCIN (pin 1)
BCKIN (pin 3)
AUDIO DATA WORD = 18-BIT
DIN (pin 2)
1
2
3
16
17
MSB
LSB
18
FIGURE 1. “Normal” Data Input Timing.
FIGURE 2. “I
2
S” Data Input Timing.
LRCKIN
BCKIN
DIN
1.4V
1.4V
1.4V
t
BCH
t
BCL
t
LB
t
BL
t
DS
BCKIN Pulse Cycle Time
BCKIN Pulse Width High
BCKIN Pulse Width Low
BCKIN Rising Edge to LRCIN Edge
LRCIN Edge to BCKIN Rising Edge
DIN Set-up Time
DIN Hold Time
: t
BCY
: t
BCH
: t
BCL
: t
BL
: t
LB
: t
DS
: t
DH
: 100ns (min)
: 50ns (min)
: 50ns (min)
: 30ns (min)
: 30ns (min)
: 30ns (min)
: 30ns (min)
t
DH
t
BCY
FIGURE 3. Audio Data Input Timing.
SYSTEM CLOCK
The system clock for PCM1733 must be either 256f
S
or
384f
S
, where f
S
is the audio sampling frequency (LRCIN),
typically 32kHz, 44.1kHz or 48kHz. The system clock is
used to operate the digital filter and the noise shaper. The
system clock input (SCKI) is at pin 14. Timing conditions
for SCKI are shown in Figure 4.
System Clock Pulse Width High
System Clock Pulse Width Low
t
SCKIH
t
SCKIL
13ns (min)
13ns (min)
t
SCKIH
SCKI
t
SCKIL
2.0V
0.8V
FIGURE 4. System Clock Timing Requirements.
相關(guān)PDF資料
PDF描述
PCM1738 24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
PCM1738E2K 24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
PCM1738E 24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
PCM1739 24-Bit, 192kHz Sampling, Enhanced Multi-Level, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER
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