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參數資料
| 型號： | AD1819A |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | Codec |
| 英文描述： | AC97 SoundPort Codec(AC97型聲音端口信號編解碼器) |
| 中文描述： | AC97 SoundPort編解碼器（AC97型聲音端口信號編解碼器） |
| 文件頁數： | 22/28頁 |
| 文件大小： | 265K |
| 代理商： | AD1819A |
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AD1819A
–22–
REV. 0
T AG Phase Bit Assignments:
Bit (15)
Bit (14)
Bit (13)
Bit (12)
Bit (11)
Bit (10)
Bit (9)
Bit (8)
Bit (7)
Bit (6:0)
Codec Ready
Slot 1 Valid
Slot 2 Valid
Slot 3 Valid/ADC Left Data Is Valid on Slot 3
Slot 4 Valid/ADC Right Data Is Valid on Slot 4
Slot 5 Valid/ADC Left Data Slave 1 Valid on Slot 5
Slot 6 Valid/ADC Right Data Slave 1 Valid on Slot 6
Slot 7 Valid/ADC Left Data Slave 2 Valid on Slot 7
Slot 8 Valid/ADC Right Data Slave 2 Valid on Slot 8
Not Used
Slot 1: Status Address Port
T he status port is used to monitor status for AD1819A functions including, but not limited to, mixer settings and power manage-
ment.
Audio input frame Slot 1’s stream echoes the control register index, for historical reference, for the data to be returned in Slot 2
(assuming that Slots 1 and 2 had been tagged “valid” by the AD1819A during Slot 0).
Status Address Port Bit Assignments:
Bit (19)
RESERVED
Bit (18:12)
Control Register Index
Bit (11)
DAC Request Slot 3
Bit (10)
DAC Request Slot 4
Bit (9)
DAC Request Slot 5
Bit (8)
DAC Request Slot 6
Bit (7)
DAC Request Slot 7
Bit (6)
DAC Request Slot 8
Bit (5:0)
RESERVED
T he first bit (MSB) generated by the AD1819A is always stuffed with a 0. T he following 7-bit positions communicate the associated
control register address, and the trailing 12-bit positions are stuffed with 0s by the AD1819A.
(Stuffed with 0)
(Echo of Register Index for Which Data Is Being Returned)
(0 = Request, 1 = No Request)
(0 = Request, 1 = No Request)
(0 = Request, 1 = No Request); Slave 1
(0 = Request, 1 = No Request); Slave 1
(0 = Request, 1 = No Request); Slave 2
(0 = Request, 1 = No Request); Slave 2
(Stuffed with 0s)
Slot 2: Status Data Port
T he status data port delivers 16-bit control register read data.
Bit (19:4)
Control Register Read Data
Bit (3:0)
RESERVED
If Slot 2 is tagged “invalid” by the AD1819A, the entire slot will be stuffed with 0s by the AD1819A.
(Stuffed with 0s If T agged “Invalid” by AD1819A)
(Stuffed with 0s)
Slot 3: PCM Record Left Channel
Audio input frame Slot 3 is the left channel output of the AD1819A’s input MUX , post-ADC.
AD1819A transmits its ADC output data (MSB first), and stuffs the trailing nonvalid bit positions with 0s to fill out its 20-bit time slot.
Slot 4: PCM Record Right Channel
Audio input frame Slot 4 is the right channel output of the AD1819A’s input MUX , post-ADC.
AD1819A transmits its ADC output data (MSB first), and stuffs the trailing nonvalid bit positions with 0s to fill out its 20-bit time slot.
Slot 5–Slot 8: Multicodec Communication
Slot 5 Slave 1 PCM Record Left Channel
Slot 6 Slave 1 PCM Record Right Channel
Slot 7 Slave 2 PCM Record Left Channel
Slot 8 Slave 2 PCM Record Right Channel
Slot 9–Slot 12: Reserved
Audio input frame Slots 9–12 are reserved for future use and are always stuffed with 0s by the AD1819A.
AC-Link Low Power Mode
T he AC-Link signals can be placed in a low power mode. When the AD1819A’s Power-Down Register (26h) is programmed to the
appropriate value, both BIT _CLK and SDAT A_IN will be brought to a logic low voltage level.
相關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% |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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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