參數(shù)資料
型號(hào): AD74111YRUZ
廠商: Analog Devices Inc
文件頁數(shù): 4/20頁
文件大?。?/td> 0K
描述: IC CODEC AUDIO MONO LP 16TSSOP
標(biāo)準(zhǔn)包裝: 96
類型: 音頻編解碼器
數(shù)據(jù)接口: 串行
分辨率(位): 24 b
ADC / DAC 數(shù)量: 1 / 1
三角積分調(diào)變:
S/N 比,標(biāo)準(zhǔn) ADC / DAC (db): 77 / 89
動(dòng)態(tài)范圍,標(biāo)準(zhǔn) ADC / DAC (db): 85 / 93
電壓 - 電源,模擬: 2.5V
電壓 - 電源,數(shù)字: 2.5V
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 管件
產(chǎn)品目錄頁面: 776 (CN2011-ZH PDF)
配用: EVAL-AD74111EBZ-ND - BOARD EVAL FOR AD74111
REV. 0
–12–
AD74111
Table II. Serial Mode Selection
CRD:2 CRC:5, 4
CRD:3
DSP
Word
Operating
DM/MM
Mode
Width
Mode
Figure
00
16
16-Bit Data Mode
15
01
16
32-Bit Data Mode
19
10
16
16-Bit Mixed Mode
13
11
16
32-Bit Mixed Mode
17
00
>16
16-Bit Data Mode
16
01
>16
32-Bit Data Mode
20
10
>16
16-Bit Mixed Mode
14
11
>16
32-Bit Mixed Mode
18
DFS
(MM16)
DIN
1/
fS
STATUS
(16 BITS)
DOUT
STATUS
(16 BITS)
128 DCLKs (NORMAL MODE)
256 DCLKs (FAST MODE)
CONTROL
(16 BITS)
DAC
(16 BITS)
STATUS
(16 BITS)
ADC
(16 BITS)
CONTROL
(16 BITS)
DAC
(16 BITS)
STATUS
(16 BITS)
ADC
(16 BITS)
Figure 13. 16-Bit Mixed Mode, Word Length = 16 Bits
16 DCLKS
DFS
(MM16)
DIN
1/
fS
DOUT
128 DCLKs (NORMAL MODE)
256 DCLKs (FAST MODE)
CONTROL
(16 BITS)
STATUS
(16 BITS)
DAC DATA
(24 BITS)
ADC DATA
(24 BITS)
CONTROL
(16 BITS)
STATUS
(16 BITS)
Figure 14. 16-Bit Mixed Mode, Word Length = 24 Bits
DFS
(MM16)
DIN
1/
fS
STATUS
(16 BITS)
DOUT
STATUS
(16 BITS)
128 DCLKs (NORMAL MODE)
256 DCLKs (FAST MODE)
DAC
(16 BITS)
ADC
(16 BITS)
DAC
(16 BITS)
ADC
(16 BITS)
Figure 15. 16-Bit Data Mode, Word Length = 16 Bits
there will be a fixed relationship between the instruction cycle
time of the DSP program and the AD74111, so a timer could be
used to accurately control the DAC updates. If a timer is not
available, the Multiframe-Sync (MFS) mode could be used to
generate a DFS pulse every 16 or 32 DCLKs, allowing the DSP
to accurately control the number of DCLKs between updates
using an autobuffering or DMA type technique. In all cases for
Slave mode operation, there should be 128 DCLKs (Normal
mode) or 256 DCLKs (Fast mode) between DAC updates. The
ADC operates in a similar manner; however, if the DSP does not
read an ADC result, this will appear only as a missed sample and
will not be audible. Slave mode is most suited to state-machine
type applications where the number of DCLKs and their
relationships to the other interface signals can be controlled.
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