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參數(shù)資料
| 型號： | PCM3003 |
| 元件分類： | Codec |
| 英文描述： | 16-/20-Bit Single-Ended Analog Input/Output STEREO AUDIO CODECs |
| 中文描述： | 16-/20-Bit單端模擬輸入/輸出立體聲編解碼器 |
| 文件頁數(shù)： | 17/23頁 |
| 文件大?。?/td> | 206K |
| 代理商： | PCM3003 |
17
PCM3002/3003
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6
B5 B4
B3 B2 B1 B0
ML
MC
MD
FIGURE 10. Control Data Input Format.
MC Pulse Cycle Time
MC Pulse Width LOW
MC Pulse Width HIGH
MD Setup Time
MD Hold Time
ML Low Level Time
ML High Level Time
ML Setup Time
ML Hold Time
SYSCLK: 1/256f
S
or 1/384f
S
or 1/512f
S
t
MCY
t
MCL
t
MCH
t
MDS
t
MDH
t
MLL
t
MLH
t
MLS
t
MLH
100ns (min)
40ns (min)
40ns (min)
40ns (min)
40ns (min)
40ns + 1SYSCLK (min)
40ns + 1SYSCLK (min)
40ns (min)
40ns (min)
ML
MC
MD
t
MLL
t
MLH
t
MCH
t
MCL
t
MDS
t
MCY
t
MLS
t
MLH
t
MDH
LSB
FIGURE 11. Control Data Input Timing.
FUNCTION
ADC/DAC
PCM3002
PCM3003
Audio Data Format
LRCIN Polarity
Loop-Back Control
Left Channel Attenuation
Right Channel Attenuation
Attenuation Control
Infinite Zero Detection
DAC Output Control
Soft Mute Control
De-Emphasis (OFF, 32kHz, 44.1kHz, 48kHz)
ADC Power-Down Control
DAC Power-Down Control
High Pass Filter Operation
ADC/DAC
ADC/DAC
ADC/DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
ADC
DAC
ADC
4 Selectable Formats
O
O
O
O
O
O
O
O
O
O
O
O
2 Selectable Formats
X
X
X
X
X
X
X
X
O
O
O
X
TABLE II. Selectable Functions (O = User Selectable; X = Not Available).
OPERATIONAL CONTROL
PCM3002 can be controlled in a software mode with a
three-wire serial interface on MC (pin 18), MD (pin 17), and
ML (pin 8). Table II indicates selectable functions, and
Figure 10 and 11 illustrate the control data input format and
timing. PCM3003 only allows for control of 16-/20-bit data
format, digital de-emphasis, and Power-Down Control by
hardware pins.
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