參數(shù)資料
型號： IDT821068
廠商： Integrated Device Technology, Inc.
元件分類： Codec
英文描述： OCTAL PROGRAMMABLE PCM CODEC
中文描述： 八路可編程PCM編解碼器
文件頁數(shù)： 33/45頁
文件大?。?/td> 589K
代理商： IDT821068
INDUSTRIAL TEMPERATURE RANGE
IDT821068 OCTAL PROGRAMMABLE PCM CODEC
33
10. Teletax Ramp Start, D/A Gain, A/D Gain and Channel Power Down (0CH/8CH), Read/Write
Teletax Ramp Start bit (RS) starts or stops the teletax on corresponding channel.
RS = 0: Teletax is stopped (default);
RS = 1: Teletax is started.
D/A Gain bit (GDA) sets the gain of analog D/A for corresponding channel.
GDA = 0: 0 dB (default);
GDA = 1: -6 dB.
A/D Gain bit (GAD) sets the gain of analog A/D for corresponding channel.
GAD = 0: 0 dB (default);
GAD = 1: +6 dB.
Channel Power Down bit (PD) disables or enables the corresponding channel.
PD = 0: the corresponding channel is in normal operation;
PD = 1: the corresponding channel is powered down (default).
11. PCM Data Low Byte (0EH), Read Only (For MPI mode only)
This command is used for MCU to monitor the transmit (A to D) PCM data. For linear Code, the low 8 bits of the PCM data will be output at
CO pin, and at the same time, the transmit data will be output to PCM bus without any interference. For compressed code (A/
μ
-Law), the total 8
bit PCM data will be output at CO pin.
12. PCM Data High Byte (0FH), Read Only (For MPI mode only)
This command is used for MCU to monitor the transmit (A to D) PCM data. For linear Code, the high 8 bits of the PCM data will be output at
CO pin, and at the same time, the transmit data will be output to PCM bus without any interference. For compressed code (A/
μ
-Law), this
command is not used.
b7
R
/W
PD
b6
0
GAD
b5
0
GDA
b4
0
RS
b3
1
R
b2
1
R
b1
0
R
b0
0
R
Command
I/O data
b7
0
b6
0
b5
0
b4
0
b3
1
b2
1
b1
1
b0
1
Command
I/O data
PCM[15]
PCM[14]
PCM[13]
PCM[12]
PCM[11]
PCM[10]
PCM[9]
PCM[8]
b7
0
b6
0
b5
0
b4
0
b3
1
b2
1
b1
1
b0
0
Command
I/O data
PCM[7]
PCM[6]
PCM[5]
PCM[4]
PCM[3]
PCM[2]
PCM[1]
PCM[0]
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IDT821068PX 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:OCTAL PROGRAMMABLE PCM CODEC
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