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參數(shù)資料
| 型號(hào)： | ADAV803 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | Codec |
| 英文描述： | Audio Codec for Recordable DVD |
| 中文描述： | 音頻編解碼器可刻錄DVD |
| 文件頁數(shù)： | 30/56頁 |
| 文件大小： | 906K |
| 代理商： | ADAV803 |
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ADAV803
INTERFACE CONTROL
The ADAV803 has a dedicated control port to allow the internal
registers of the ADAV803 to be accessed. Each of the intern
re
(RES),
Rev. 0 | Page 30 of 56
al
gisters is eight bits wide. Where bits are described as reserved
these bits should be programmed as zero.
I
2
C INTERFACE
The I
2
C interface of the ADAV803 is a 2-wire interface
consisting of a clock line, SCL, and a data line, SDA. SDA is
bidirectional; the ADAV803 drives SDA to either acknowledge
the master, ACK, or send data during a read operation. The SDA
pin for the I
2
C port is an open-drain collector that requires a 1
k pull-up resistor. A write or read access occurs when the SDA
line is pulled low while the SCL line is high, indicated by START
in the timing diagrams. SDA is allowed to change only when
SCL is low, except when a start or stop condition occurs, as
shown in Figure 53 and Figure 54. The I
2
C interface supports
both standard (100 kbps) and fast (400 kbps) modes as defined
by the I
2
C standards.
The first eight bits of the access consist of the device address
and the R/W bit. The device address consists of an internal
built-in address (0b00100) and two address pins, AD1 and AD0.
The two address pins allow up to four ADAV803s to be used in
a system.
write operation to the ADAV803 involves sending a
start condition and then sending the device address with the
R/W set low. The ADAV803 responds by issuing an ACK to
indicate that it has been addressed. The user then sends a
second frame telling the ADAV803 which register is required to
be written to. The 7-bit register address is left-shifted to make
the eight bits that the frame requires. Another ACK is issued by
the ADAV803. Finally the user can send another frame with the
eight data bits required to be written to the register. A third
ACK is issued by the ADAV803, after which the user can send a
stop condition to complete the data transfer.
A read operation requires that the user first write to the
ADAV803 to point to the correct register and then read the
data. This is achieved by sending a start condition followed by
the device address frame, with R/W low, and then the register
address frame. Following the ACK from the ADAV803, the user
must issue a repeated start condition. This is identical to a start
condition. The next frame is the device address with R/W set
high. On the next frame, the ADAV803 outputs the register data
on the SDA line. A stop condition completes the read operation.
Figure 53 and Figure 54 show examples of writing to and read-
ing from the DAC left volume register (Address 0b1101000).
Initiating a
0
0
1
0
0
1
1
0
1
0
0
0
X
0
SCK
SDA
AD1
AD0
R/W
START BY
MASTER
ACK. BY
ADAV803
ACK. BY
ADAV803
ACK. BY
ADAV803
STOP BY
MASTER
FRAME 1
CHIP ADDRESS BYTE
SCK
(CONTINUED)
SDA
(CONTINUED)
FRAME 2
REGISTER ADDRESS BYTE
FRAME 3
DATA BYTE TO
ADAV803
D7
D6
D5
D4
D3
D2
D1
D0
Figure 53. Writing to the DAC Left Volume Register in I
2
C
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PDF描述 |
|---|---|
| ADAV803ASTZ | 8-Channel 14-Bit Single-Supply Voltage-Output DAC; Package: LQFP (10x10mm); No of Pins: 52; Temperature Range: Industrial |
| ADAV803ASTZ-REEL | 8-Channel 14-Bit Single-Supply Voltage-Output DAC; Package: LQFP (10x10mm); No of Pins: 52; Temperature Range: Industrial |
| ADC-912A | Microprocessor-Compatible 12-Bit A/D Converter(微處理器兼容12位A/D轉(zhuǎn)換器) |
| ADC0834BCN | Serial I/O 8-Bit A/D Converters with Multiplexer Options |
| ADC0834CCN | Serial I/O 8-Bit A/D Converters with Multiplexer Options |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADAV803AST | 制造商:Analog Devices 功能描述:AUDIO CODEC FOR RECORDABLE DVD - Bulk |
| ADAV803ASTZ | 功能描述:IC CODEC AUDIO R-DVD 3.3V 64LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| ADAV803ASTZ-REEL | 功能描述:IC CODEC AUDIO R-DVD 3.3V 64LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
| ADAV804AST | 制造商:Analog Devices 功能描述:AUDIO CODEC FOR RECORDABLE DVD - Bulk |
| ADAV804ASTZ | 制造商:Analog Devices 功能描述: |
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