參數(shù)資料
型號(hào): AD5398ABCBZ-REEL
廠商: Analog Devices Inc
文件頁數(shù): 4/17頁
文件大?。?/td> 0K
描述: IC DAC 10BIT CURRENT-SINK 9WLCSP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
產(chǎn)品變化通告: 8mm Carrier Tape Changes 28/Feb/2012
標(biāo)準(zhǔn)包裝: 10,000
設(shè)置時(shí)間: 250µs
位數(shù): 10
數(shù)據(jù)接口: I²C,串行
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 9-UFBGA,WLCSP
供應(yīng)商設(shè)備封裝: 9-WLCSP(1.52 x 1.69)
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 1 電流,單極
采樣率(每秒): *
AD5398A
Rev. 0 | Page 11 of 16
DATA FORMAT
Data is written to the AD5398A high byte first, MSB first, and is
shifted into the 16-bit input register. After all data is shifted in,
data from the input register is transferred to the DAC register.
Because the DAC requires only 10 bits of data, not all bits of the
input register data are used. The MSB is reserved for an active-
high, software-controlled, power-down function.
The data format is shown in Table 6. When referring to this table,
note that Bit 14 is unused; Bit 13 to Bit 4 correspond to the DAC
data bits, D9 to D0; and Bit 3 to Bit 0 are unused.
During a read operation, data is read in the same bit order.
07
79
5
-01
7
PD
X
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
X
00
SCL
SDA
START BY
MASTER
ACK BY
AD5398A
11
91
ACK BY
AD5398A
ACK BY
AD5398A
STOP BY
MASTER
FRAME 3
LEAST SIGNIFICANT
DATA BYTE
FRAME 2
MOST SIGNIFICANT
DATA BYTE
FRAME 1
SERIAL BUS
ADDRESS BYTE
01
1
X
R/W
9
Figure 18. Write Operation
07
79
5
-01
8
PD
X
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
X
00
SCL
SDA
START BY
MASTER
ACK BY
AD5398A
11
91
ACK BY
AD5398A
ACK BY
AD5398A
STOP BY
MASTER
FRAME 3
LEAST SIGNIFICANT
DATA BYTE
FRAME 2
MOST SIGNIFICANT
DATA BYTE
FRAME 1
SERIAL BUS
ADDRESS BYTE
01
1
X
X R/W
9
Figure 19. Read Operation
Table 6. Data Format
Serial Data-
Words
High Byte
Low Byte
Bit
15
Bit
14
Bit
13
Bit
12
Bit
11
Bit
10
Bit
9
Bit
8
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
Serial Data Bits
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
Input Register
R15
R14
R13
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
R0
Function1
PD
X
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
X
1 PD = soft power-down; X = unused/don’t care; and D7 to D0 = DAC data.
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