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參數(shù)資料
| 型號(hào)： | AD1819A |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | Codec |
| 英文描述： | AC97 SoundPort Codec(AC97型聲音端口信號(hào)編解碼器) |
| 中文描述： | AC97 SoundPort編解碼器（AC97型聲音端口信號(hào)編解碼器） |
| 文件頁(yè)數(shù)： | 17/28頁(yè) |
| 文件大?。?/td> | 265K |
| 代理商： | AD1819A |
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AD1819A
–17–
REV. 0
Serial Configuration (Index 74h)
g
m
u
e
R
N
e
m
a
N
5
1
D
4
1
D
3
1
D
2
1
D
1
1
D
0
1
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
D
t
a
D
h
4
7
n
o
r
u
g
n
o
C
l
S
T
O
6
L
S
1
M
G
2
E
R
M
G
1
E
R
M
G
0
E
R
E
Q
R
N
D
Q
R
2
L
D
Q
R
1
L
D
Q
R
0
L
D
X
X
X
X
X
Q
R
2
R
D
Q
R
1
R
D
Q
R
0
R
D
h
0
0
0
7
DRRQ0
DRRQ1
DRRQ2
DLRQ0
DLRQ1
DLRQ2
DRQEN
Master AC ’97 Codec DAC Right Request.
Slave 1 Codec DAC Right Request.
Slave 2 Codec DAC Right Request.
Master AC ’97 Codec DAC Left Request.
Slave 1 Codec DAC Left Request.
Slave 2 Codec DAC Left Request.
Fills idle status slots with DAC request reads, and stuffs DAC requests into LSB of output address slot. (AC-Link
Slot 1.)
Master Codec Register Mask.
Slave 1 Codec Register Mask.
Slave 2 Codec Register Mask.
Enable 16-Bit Slots.
If your system uses only a single AD1819A, you can ignore the register mask and the slave 1/slave 2 request bits. If
you write to this register, write ones to all of the register mask bits. T he request bits are read-only.
T he codec asserts each request bit when the corresponding DAC channel can accept data in the next frame. T hese
bits are snapshots of the codec state taken when the current frame began (effectively, on the rising edge of SYNC),
but they also take notice of DAC samples sent in the current frame.
If you set the DRQEN bit, the AD1819A will fill all otherwise unused AC-Link status address and data slots with
the contents of register 74h. T hat makes it somewhat simpler to access the information, because you don’t need to
continually issue AC-Link read commands to get the register contents.
Also, the DAC requests are reflected in Slot 1, Bits (11 . . . 6). T hese bits are active Lo.
SLOT 16 makes all AC-Link slots 16 bits in length, formatted into 16 slots.
REGM0
REGM1
REGM2
SLOT 16
Miscellaneous Control Bits (Index 76h)
g
m
u
e
R
N
e
m
a
N
5
1
D
4
1
D
3
1
D
2
1
D
1
1
D
0
1
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
D
t
a
D
h
6
7
s
B
l
r
n
o
C
c
M
Z
C
A
D
X
X
X
X
R
S
L
D
X
R
S
L
A
D
O
N
E
M
0
1
X
R
S
7
D
8
X
7
R
D
S
X
X
R
S
R
D
X
R
S
R
A
h
0
0
0
0
ARSR
ADC Right Sample Generator Select. Connects right ADC channel to SR0 or SR1.
0 = SR0 Selected.
1 = SR1 Selected.
DAC Right Sample Generator Select. Connects right DAC channel to SR0 or SR1.
0 = SR0 Selected.
1 = SR1 Selected.
Multiply SR1 Rate by 8/7.
Multiply SR1 Rate by 10/7. SRX 10D7 and SRX 8D7 are mutually exclusive; SRX 10D7 has priority if both are set.
Modem Filter Enable (left channel only). Change only when DACs are powered down.
ADC Left Sample Generator Select. Connects left ADC channel to SR0 or SR1.
0 = SR0 Selected.
1 = SR1 Selected.
DAC Left Sample Generator Select. Connects left DAC channel to SR0 or SR1.
0 = SR0 Selected.
1 = SR1 Selected.
Zero-Fill (vs. repeat sample) if DAC is starved.
DRSR
SRX 8D7
SRX 10D7
MODEN
ALSR
DLSR
DACZ
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD1819BJST | AC’97 SoundPort Codec |
| AD1819 | ECONOLINE: RD & RC - Dual Output from a Single Input Rail- 1kVDC & 2kVDC Isolation- Power Sharing on Output- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 86% |
| AD1819B | AC’97 SoundPort Codec |
| AD1833A | 24-Bit, 192 kHz, DAC |
| AD1833AAST | ECONOLINE: RD & RC - Dual Output from a Single Input Rail- 1kVDC & 2kVDC Isolation- Power Sharing on Output- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 86% |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1819AJST | 制造商:Rochester Electronics LLC 功能描述: |
| AD1819B | 制造商:AD 制造商全稱:Analog Devices 功能描述:AC’97 SoundPort Codec |
| AD1819BJST | 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 2DAC 16-Bit 48-Pin LQFP 制造商:Analog Devices 功能描述:IC CODEC AC'97 VERSION 2.1 |
| AD1819BJST-REEL | 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 2DAC 16-Bit 48-Pin LQFP T/R |
| AD1819BJSTZ | 制造商:Analog Devices 功能描述:Audio Codec 2ADC / 2DAC 16-Bit 48-Pin LQFP 制造商:Analog Devices 功能描述:Audio CODEC IC |
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