参数资料
| 型号： | AD9774ASZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 19/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT 32MSPS 44MQFP |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 800 |
| 系列： | TxDAC+® |
| 设置时间： | 35ns |
| 位数： | 14 |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 1.13W |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 2 电流，单极；2 电流，双极 |
| 采样率（每秒）： | 32M |
–4–
REV. B
AD9774–SPECIFICATIONS
DIGITAL FILTER SPECIFICATIONS
Parameter
Min
Typ
Max
Units
MAXIMUM INPUT CLOCK RATE (fCLOCK)
DVDD = 5 V
32
MSPS
DVDD = 3 V
25
32
MSPS
DIGITAL FILTER CHARACTERISTICS
Passband Width
1: 0.005 dB
0.410
fOUT/fCLOCK
Passband Width: 0.01 dB
0.414
fOUT/fCLOCK
Passband Width: 0.1 dB
0.420
fOUT/fCLOCK
Passband Width: –3 dB
0.482
fOUT/fCLOCK
LINEAR PHASE (FIR IMPLEMENTATION)
STOPBAND REJECTION
0.591 fCLOCK to 3.419 fCLOCK
–69.5
dB
0.591 fCLOCK to 1.409 fCLOCK
–79.5
dB
GROUP DELAY
2
38
Input Clocks
IMPULSE RESPONSE DURATION
–40 dB
53
Input Clocks
–60 dB
62
Input Clocks
NOTES
1Excludes sinx/x characteristic of DAC.
2Defined as the number of data clock cycles between impulse input and peak of output response.
Specifications subject to change without notice.
(TMIN to TMAX, AVDD = +2.7 V to +5.5 V, DVDD = +2.7 V to +5.5 V, IOUTFS = 20 mA unless
otherwise noted)
ABSOLUTE MAXIMUM RATINGS*
With
Respect
Parameter
to
Min
Max
Units
AVDD
ACOM
–0.3
+6.5
V
DVDD
DCOM
–0.3
+6.5
V
PLLVDD
PLLCOM
–0.3
+6.5
V
ACOM
DCOM
–0.3
+0.3
V
PLLCOM
ACOM
–0.3
+0.3
V
PLLCOM
DCOM
–0.3
+0.3
V
AVDD
DVDD
–6.5
+6.5
V
PLLVDD
DVDD
–0.3
+6.5
V
PLLVDD
AVDD
–0.3
+6.5
V
CLKIN, CLK4
×IN
DVDD
–0.3
+6.5
V
SLEEP, SNOOZE
DCOM
–0.3
DVDD + 0.3
V
Digital Inputs
DCOM
–0.3
DVDD + 0.3
V
PLL DIVIDE, LPF
ACOM
–0.3
PLLVDD + 0.3 V
PLLLOCK
ACOM
–0.3
PLLVDD + 0.3 V
VCO IN/EXT
ACOM
–0.3
PLLVDD + 0.3 V
IOUTA/IOUTB
ACOM
–0.3
AVDD + 0.3
V
REFIO, FSADJ
ACOM
–0.3
AVDD + 0.3
V
FSADJ
ACOM
–0.3
AVDD + 0.3
V
ICOMP
ACOM
–0.3
AVDD + 0.3
V
REFCOM
ACOM
–0.3
+0.3
V
Junction Temperature
+150
°C
Storage Temperature
–65
+150
°C
Lead Temperature
+300
°C
(10 sec)
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods may effect device reliability.
ORDERING GUIDE
Temperature
Package
Model
Range
Description
Option*
AD9774AS
–40
°C to +85°C
44-Lead MQFP
S-44
AD9774EB
Evaluation Board
*S = Metric Quad Flatpack.
THERMAL CHARACTERISTIC
Thermal Resistance
44-Lead MQFP
θ
JA = 53.2°C/W
θ
JC = 19°C/W
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