參數(shù)資料
型號(hào): PCM3794A
元件分類: Codec
英文描述: 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier
中文描述: 16位,低功耗立體聲音頻編解碼器麥克風(fēng)偏置,耳機(jī),揚(yáng)聲器放大器和數(shù)字
文件頁(yè)數(shù): 60/68頁(yè)
文件大?。?/td> 982K
代理商: PCM3794A
www.ti.com
PCM3793A
PCM3794A
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Register 125
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 125
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
PTM1
PTM0
RES4
RES3
RES2
RES1
RES0
IDX[6:0]:
111 1101b (7Dh): Register 125
PTM[1:0]: Power-Up/Down Time Control
Default value: 00
Table 14. Power Up/Down Time Control
V
COM
CAPACITOR
[μF]
POWER-UP TIME
[ms]
450
900
250
450
900
100
250
450
900
100
250
450
POWER-DOWN
TIME [ms]
750
1500
400
750
1500
300
400
750
1500
300
400
750
RES[4:0]
PTM[1:0]
NOTE
1 1110
1 1100
1 1000
1 0000
1 1110
1 1100
1 1000
1 0000
1 1110
1 1100
1 1000
1 0000
1 1110
1 1100
1 1000
1 0000
00
11
10
Do not set.
Do not set.
01
00
11
Do not set.
10
01
00
11
Do not set.
10
01
00
Default
4.7
2.2
1
RES[4:0]: Resistor Value Control
Default value: 1 1100
These bits are used to optimize audible pop noise and ramp-up time for the headphone output when powering
the device on/off.
Table 15. Resistor Value Control
RES [4:0]
1 0000
1 1000
1 1100
1 1110
Others
V
COM
RESISTOR VALUE
60 k
24 k
12 k
6 k
Reserved
60
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PDF描述
PCM3794ARHBR 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier
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