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參數(shù)資料
| 型號： | AD9951YSVZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 24/28頁 |
| 文件大小： | 0K |
| 描述： | IC DDS DAC 14BIT 1.8V 48-TQFP |
| 產(chǎn)品培訓(xùn)模塊： | Direct Digital Synthesis Tutorial Series (1 of 7): Introduction Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 分辨率（位）： | 14 b |
| 主 fclk： | 400MHz |
| 調(diào)節(jié)字寬（位）： | 32 b |
| 電源電壓： | 1.71 V ~ 1.96 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-TQFP 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 48-TQFP 裸露焊盤（7x7） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 552 (CN2011-ZH PDF) |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁
AD9951
Rev. A | Page 5 of 28
Parameter
Temp
Min
Typ
Max
Unit
TIMING CHARACTERISTICS
Serial Control Bus
Maximum Frequency
FULL
25
Mbps
Minimum Clock Pulse Width Low
FULL
7
ns
Minimum Clock Pulse Width High
FULL
7
ns
Maximum Clock Rise/Fall Time
FULL
2
ns
Minimum Data Setup Time DVDD_I/O = 3.3 V
FULL
3
ns
Minimum Data Setup Time DVDD_I/O = 1.8 V
FULL
5
ns
Minimum Data Hold Time
FULL
0
ns
Maximum Data Valid Time
FULL
25
ns
Wake-Up Time2
FULL
1
ms
Minimum Reset Pulse Width High
FULL
5
SYSCLK Cycles3
I/O UPDATE to SYNC_CLK Setup Time DVDD_I/O = 3.3 V
FULL
4
ns
I/O UPDATE to SYNC_CLK Setup Time DVDD_I/O = 3.3 V
FULL
6
ns
I/O UPDATE, SYNC_CLK Hold Time
FULL
0
ns
Latency
I/O UPDATE to Frequency Change Prop Delay
25°C
24
SYSCLK Cycles
I/O UPDATE to Phase Offset Change Prop Delay
25°C
24
SYSCLK Cycles
I/O UPDATE to Amplitude Change Prop Delay
25°C
16
SYSCLK Cycles
CMOS LOGIC INPUTS
Logic 1 Voltage @ DVDD_I/O (Pin 43) = 1.8 V
25°C
1.25
V
Logic 0 Voltage @ DVDD_I/O (Pin 43) = 1.8 V
25°C
0.6
V
Logic 1 Voltage @ DVDD_I/O (Pin 43) = 3.3 V
25°C
2.2
V
Logic 0 Voltage @ DVDD_I/O (Pin 43) = 3.3 V
25°C
0.8
V
Logic 1 Current
25°C
3
12
A
Logic 0 Current
25°C
12
A
Input Capacitance
25°C
2
pF
CMOS LOGIC OUTPUTS (1 mA Load) DVDD_I/O = 1.8 V
Logic 1 Voltage
25°C
1.35
V
Logic 0 Voltage
25°C
0.4
V
CMOS LOGIC OUTPUTS (1 mA Load) DVDD_I/O = 3.3 V
Logic 1 Voltage
25°C
2.8
V
Logic 0 Voltage
25°C
0.4
V
POWER CONSUMPTION (AVDD = DVDD = 1.8 V)
Single-Tone Mode
25°C
162
171
mW
Rapid Power-Down Mode
25°C
150
160
mW
Full-Sleep Mode
25°C
20
27
mW
SYNCHRONIZATION FUNCTION4
Maximum SYNC Clock Rate (DVDD_I/O = 1.8 V)
25°C
62.5
MHz
Maximum SYNC Clock Rate (DVDD_I/O = 3.3 V)
25°C
100
MHz
SYNC_CLK Alignment Resolution5
25°C
±1
SYSCLK Cycles
1 To achieve the best possible phase noise, the largest amplitude clock possible should be used. Reducing the clock input amplitude will reduce the phase noise
performance of the device.
2 Wake-up time refers to the recovery from analog power-down modes (see the Power-Down Functions of the AD9951 section). The longest time required is for the
reference clock multiplier PLL to relock to the reference. The wake-up time assumes there is no capacitor on DACBP and that the recommended PLL loop filter values
are used.
3 SYSCLK cycle refers to the actual clock frequency used on-chip by the DDS. If the reference clock multiplier is used to multiply the external reference clock frequency,
the SYSCLK frequency is the external frequency multiplied by the reference clock multiplication factor. If the reference clock multiplier is not used, the SYSCLK
frequency is the same as the external reference clock frequency.
4 SYNC_CLK = SYSCLK rate. For SYNC_CLK rates
≥ 50 MHz, the high speed sync enable bit, CFR2<11>, should be set.
5 This parameter indicates that the digital synchronization feature cannot overcome phase delays (timing skew) between system clock rising edges. If the system clock
edges are aligned, the synchronization function should not increase the skew between the two edges.
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