參數(shù)資料
型號(hào)： AD9913BCPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 9/32頁(yè)
文件大小： 0K
描述： IC DDS 10BIT DAC 250MSPS 32LFCSP
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）： 10 b
主 fclk： 250MHz
調(diào)節(jié)字寬（位）： 32 b
電源電壓： 1.8V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 32-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 32-LFCSP-VQ（5x5）
包裝： 托盤
產(chǎn)品目錄頁(yè)面： 552 (CN2011-ZH PDF)
AD9913
Rev. A | Page 17 of 32
E0
S0
PS[0]
PS[1]
BIDIRECTIONAL MODE (EDGE TRIGGERED)
NO-DWELL BIT = x
BIDIRECTIONAL MODE (LEVEL TRIGGERED)
NO-DWELL BIT = 0
NO-DWELL BIT = 1
E0
S0
PS[0]
PS[1]
E0
S0
PS[0]
PS[1]
07
00
2-
04
3
Figure 24. Display of Bidirectional Ramp Capability
Using the External Profile Pins
COMBINATION OF MODES (EDGE TRIGGERED)
E0
S0
PS[0]
PS[1]
RAMP UP
MODE
RAMP UP
MODE
BIDIRECTIONAL
MODE
RAMP DOWN
MODE
07
00
2-
0
44
Figure 25. Combination of Sweep Modes Using the External Profile Pins
Clear Functions
The AD9913 allows for a programmable continuous zeroing of
the sweep logic and the phase accumulator as well as clear-and-
release, or automatic zeroing function. Each feature is
individually controlled via bits in the control registers.
Continuous Clear Bits
The continuous clear bits are simply static control signals that
hold the respective accumulator (and associated logic) at zero
for the entire time the bit is active.
Clear-and-Release Function
The auto clear auxiliary accumulator bit, when active, clears and
releases the auxiliary accumulator upon receiving an
I/O_UPDATE or change in profile bits.
The auto clear phase accumulator, when active, clears and
releases the phase accumulator upon receiving a I/O_UPDATE
or a change in profile bits.
The automatic clearing function is repeated for every
subsequent I/O_UPDATE or change in profile bits until the
control bit is cleared.
These bits are programmed independently and do not have to
be active at the same time. For example, one accumulator may
be using the clear and release function while the other is
continuously cleared.
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