參數(shù)資料
型號(hào)： AD9911BCPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 23/44頁(yè)
文件大?。?/td> 0K
描述： IC DDS 500MSPS DAC 10BIT 56LFCSP
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： 500MHz
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 ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 56-VFQFN 裸露焊盤(pán)，CSP
供應(yīng)商設(shè)備封裝： 56-LFCSP-VQ（8x8）
包裝： 托盤(pán)
配用： AD9911/PCBZ-ND - BOARD EVAL FOR AD9911
AD9911
Rev. 0 | Page 3 of 44
GENERAL DESCRIPTION
The DDS acts as a high resolution frequency divider with the
REF_CLK as the input and the DAC providing the output. The
REF_CLK input can be driven directly or used in combination
with an integrated REF_CLK multiplier (PLL). The REF_CLK
input also features an oscillator circuit to support an external
crystal as the REF_CLK source. The crystal can be used in
combination with the REF_CLK multiplier.
The AD9911 I/O port offers multiple configurations to provide
significant flexibility. The I/O port offers an SPI-compatible
mode of operation that is virtually identical to the SPI operation
found in earlier Analog Devices DDS products.
Flexibility is provided by four data pins (Pin SDIO_0,
Pin SDIO_1, Pin SDIO_2, and Pin SDIO_3) that allow four
programmable modes of I/O operation.
The DAC output is supply referenced and must be terminated
into AVDD by a resistor and an AVDD center-tapped trans-
former. The DAC has its own programmable reference to enable
different full-scale currents.
The DDS core (the AVDD pins and the DVDD pins) is powered
by a 1.8 V supply. The digital I/O interface (SPI) operates at
3.3 V and requires that the Pin DVDD_I/O (Pin 49) be
connected to 3.3 V.
FUNCTIONAL BLOCK DIAGRAM
AD9911
32
FTW/
ΔFTW
SYNC_CLK
CLK_MODE_SEL
BUFFER/
XTAL
OSCILLATOR
SYSTEM
CLK
1.8V
AVDD
DVDD
SYNC_IN
SYNC_OUT
I/O_UPDATE
32
PHASE/
ΔPHASE
AMP/
ΔAMP
10
14
10
15
IOUT
10
DAC
IOUT
DAC_RSET
REF_CLK
PWR_DWN_CTL
MASTER_RESET
SCLK
SDIO_0
SDIO_1
SDIO_2
SDIO_3
CS
TIMING AND CONTROL LOGIC
SCALABLE
DAC REF
CURRENT
MUX
MU
X
I/O
PORT
BUFFER
CONTROL
REGISTERS
CHANNEL
REGISTERS
PROFILE
REGISTERS
÷4
REF CLOCK
MULTIPLIER
4× TO 20×
1.8V
P0 P1
P2 P3
DVDD_I/O
COS(X)
Σ
DDS
CORE
DDS
CORE
DDS
CORE
SPURKILLER/
MULTI-TONE
MUX
05
78
5-
00
1
3.3V
LOOP FILTER
Figure 2. Functional Block Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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