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参数资料
| 型号： | AD9748ACP-PCBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 22/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD9748ACP |
| 产品培训模块： | DAC Architectures |
| 标准包装： | 1 |
| 系列： | TxDAC® |
| DAC 的数量： | 1 |
| 位数： | 8 |
| 采样率（每秒）： | 210M |
| 数据接口： | 并联 |
| 设置时间： | 11ns |
| DAC 型： | 电流 |
| 工作温度： | -40°C ~ 85°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | AD9748 |
| 相关产品： | AD9748ACPZ-ND - IC DAC 8BIT 210MSPS 32-LFCSP |
Data Sheet
AD9748
Rev. B | Page 7 of 24
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
DB1
(LSB) DB0
DVDD
NC
FS ADJ
REFIO
ACOM
IOUTA
IOUTB
ACOM
AVDD
NC
DCO
M
CL
KV
DD
CL
K+
CL
K–
CL
KCO
M
CM
O
DE
M
O
DE
DB2
DB3
DB4
DB5
DB6
DB7
(
M
S
B)
DCO
M
SL
EEP
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
1
12
13
14
15
16
32
31
30
29
28
27
26
25
AD9748
TOP VIEW
(Not to Scale)
032
1
1-
003
NOTES
1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
2. IT IS RECOMMENDED THAT THE EXPOSED PAD
BE THERMALLY CONNECTED TO A COPPER
GROUND PLANE FOR ENHANCED ELECTRICAL
AND THERMAL PERFORMANCE.
Figure 3. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
27
DB7 (MSB)
Most Significant Data Bit (MSB).
28 to 32, 1
DB6 to DB1
Data Bits 6 to 1.
2
DB0 (LSB)
Least Significant Data Bit (LSB).
3
DVDD
Digital Supply Voltage (3.3 V).
4 to 9
NC
No Internal Connection.
10, 26
DCOM
Digital Common.
11
CLKVDD
Clock Supply Voltage (3.3 V).
12
CLK+
Differential Clock Input.
13
CLK
Differential Clock Input.
14
CLKCOM
Clock Common.
15
CMODE
Clock Mode Selection. Connect to CLKCOM for single-ended clock receiver (drive CLK+ and float
CLK–). Connect to CLKVDD for differential receiver. Float for PECL receiver (terminations on-chip).
16
MODE
Selects Input Data Format. Connect to DCOM for straight binary, DVDD for twos complement.
17, 18
AVDD
Analog Supply Voltage (3.3 V).
19, 22
ACOM
Analog Common.
20
IOUTB
Complementary DAC Current Output. Full-scale current when all data bits are 0s.
21
IOUTA
DAC Current Output. Full-scale current when all data bits are 1s.
23
REFIO
Reference Input/Output. Requires 0.1 F capacitor to ACOM.
24
FS ADJ
Full-Scale Current Output Adjust.
25
SLEEP
Power-Down Control Input. Active high. Contains active pull-down circuit; it can be left unterminated
if not used.
EPAD
It is recommended that the exposed pad be thermally connected to a copper ground plane for enhanced
electric and thermal performance.
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