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參數(shù)資料
| 型號： | AM79Q021JC |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices |
| 中文描述： | 四用戶線路音頻處理電路（QSLAC）設備 |
| 文件頁數(shù)： | 42/68頁 |
| 文件大小： | 1361K |
| 代理商： | AM79Q021JC |
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42
Am79Q02/021/031 Data Sheet
Master Clock Frequency
CSEL = 0000
CSEL = 0001
CSEL = 0010
CSEL = 0011
CSEL = 01xx
1.536 MHz
1.544 MHz
2.048 MHz
Reserved
Two times frequency specified above (2 x 1.536 MHz,
2 x 1.544 MHz, or 2 x 2.048 MHz)
Four times frequency specified above (4 x 1.536 MHz,
4 x 1.544 MHz, or 4 x 2.048 MHz)
Reserved
8.192 MHz is the default
CSEL = 10xx
CSEL = 11xx
CSEL = 1010*
These commands do not depend on the state of the Channel Enable Register.
* Power Up and Hardware Reset (
RST
) Value = 9Ah.
14, 15. Write/Read Channel Enable and Operating Mode Register
(4A/4B)
R/W = 0: Write
MPI Command
R/W = 1: Read
RSVD
Reserved for future use. Always write as 0, but 0 is not guaranteed when read.
Robbed-bit Mode
RBE = 0*
RBE = 1
Robbed-bit Signaling mode is disabled.
Robbed-bit Signaling mode is enabled on PCM receiver if
μ
-law is
selected.
VOUT Mode
VMODE = 0*
VMODE = 1
VOUT = VREF through a resistor when channel is deactivated
VOUT high impedance when channel is deactivated.
Low Power Mode
LPM = 0*
LPM = 1
Low Power mode off
Low Power mode on while all channels are inactive
Channel Enable 4
EC4 = 0
EC4 = 1*
Disabled, Channel 4 cannot receive commands
Enabled, Channel 4 can receive commands
Channel Enable 3
EC3 = 0
EC3 = 1*
Disabled, Channel 3 cannot receive commands
Enabled, Channel 3 can receive commands
Channel Enable 2
EC2 = 0
EC2 = 1*
Disabled, Channel 2 cannot receive commands
Enabled, Channel 2 can receive commands
Channel Enable 1
EC1 = 0
EC1 = 1*
Disabled, Channel 1 cannot receive commands
Enabled, Channel 1 can receive commands
* Power Up and Hardware Reset (
RST
) Value = 0Fh.
D
7
0
D
6
1
RBE
D
5
0
D
4
0
LPM
D
3
1
EC4
D
2
0
EC3
D
1
1
EC2
D
0
R/W
EC1
Command
I/O Data
RSVD
VMODE
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AM79Q021JC/T | 制造商:Advanced Micro Devices 功能描述: |
| AM79Q021VC | 制造商:Advanced Micro Devices 功能描述: |
| AM79Q02JC | 制造商:Advanced Micro Devices 功能描述: |
| AM79Q031 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Quad Subscriber Line Audio-Processing Circuit (QSLAC) Devices |
| AM79Q031JC | 制造商:Advanced Micro Devices 功能描述: |
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