Datasheet.kr   

AD9853 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 AD9853은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 AD9853 자료 제공

부품번호 AD9853 기능
기능 Programmable Digital OPSK/16-QAM Modulator
제조업체 Analog Devices
로고 Analog Devices 로고


AD9853 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 30 페이지수

미리보기를 사용할 수 없습니다

AD9853 데이터시트, 핀배열, 회로
a
Programmable Digital
QPSK/16-QAM Modulator
AD9853
FEATURES
GENERAL DESCRIPTION
Universal Low Cost Solution for HFC Network
The AD9853 integrates a high speed direct-digital synthesizer
Return-Channel TX Function: 5 MHz–42 MHz/
(DDS), a high performance, high speed digital-to-analog con-
5 MHz–65 MHz
verter (DAC), digital filters and other DSP functions onto a
165 MHz Internal Reference Clock Capability
single chip, to form a complete and flexible digital modulator
Includes Programmable Pulse-Shaping FIR Filters and
device. The AD9853 is intended to function as a modulator in
Programmable Interpolating Filters
network applications such as interactive HFC, WLAN and
FSK/QPSK/DQPSK/16-QAM/D16-QAM Modulation
MMDS, where cost, size, power dissipation, functional integra-
Formats
tion and dynamic performance are critical attributes.
6؋ Internal Reference Clock Multiplier
The AD9853 is fabricated on an advanced CMOS process and
Integrated Reed-Solomon FEC Function
it sets a new standard for CMOS digital modulator performance.
Programmable Randomizer/Preamble Function
The device is loaded with programmable functionality and
Supports Interoperable Cable Modem Standards
Internal SINx/x Compensation
>50 dB SFDR @ 42 MHz Output Frequency (Single Tone)
Controlled Burst Mode Operation
+3.3 V to +5 V Single Supply Operation
Low Power: 750 mW @ Full Clock Speed (3.3 V Supply)
Space Saving Surface Mount Packaging
OAPPLICATIONS
BHFC Data, Telephony and Video Modems
Wireless LAN
provides a direct interface port to the AD8320, digitally-
programmable cable driver amplifier. The AD9853/AD8320
chipset forms a highly integrated, low power, small footprint
and cost-effective solution for the HFC return-path requirement
and other more general purpose modulator applications.
The AD9853 is available in a space saving surface mount pack-
age and is specified to operate over the extended industrial
temperature range of –40°C to +85°C.
SOFUNCTIONAL BLOCK DIAGRAM
LESERIAL
TEDATAIN
R-S
FEC
DATA
XOR DELAY
& MUX
ENCODER:
FSK
QPSK
DQPSK
16-QAM
D16-QAM
FIR
FILTER
INTERPOLATION
FILTER
FIR INTERPOLATION
AD9853
10
INV
SYNC
FILTER
10-BIT
10 DAC
AOUT
TO LP FILTER
AND AD8320
RANDOMIZER
PREAMBLE
INSERTION
FILTER
FILTER
GAIN
CONTROL TO
CABLE DRIVER
AMPLIFER
SINE
COSINE
DRIVER AMP
DDS
CLOCK
6؋
CONTROL FUNCTIONS
REF CLOCK IN
FEC TXENABLE RESET
ENABLE/
DISABLE
SERIAL CONTROL BUS:
32-BIT OUTPUT FREQUENCY TUNING WORD
INPUT DATA RATE/MODULATION FORMAT
FEC/RANDOMIZER/PREAMBLE ENABLE/CONFIGURATION
FIR FILTER COEFFICIENTS
REF CLOCK MULTIPLIER ENABLE
I/Q PHASE INVERT
SLEEP MODE
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1999




AD9853 pdf, 반도체, 판매, 대치품
AD9853
PIN FUNCTION DESCRIPTIONS
PIN CONFIGURATION
Pin # Pin Name
Pin Function
44-Lead Metric Quad Flatpack
(S-44A)
1, 7, 9, 10,
36, 39, 44 DGND
Digital Ground
2, 8, 37,
40, 43 DVDD
Digital Supply Voltage
3 Control Bus Clock Bit Clock for Control Bus
Data
4 Control Bus Data In Control Bus Data In
5
FEC Enable
Enables/Disables FEC
6
Address Bit
Address Bit for Control Bus
11, 26, 31 Test Data Out
Factory Use—Serial Test Data
Out
12, 13 PLL GND
PLL Ground
14 PLL VCC
Supply Voltage for PLL
44 43 42 41 40 39 38 37 36 35 34
DGND 1
DVDD 2
CONTROL
BUS CLOCK
3
CONTROL
BUS DATA IN
4
FEC ENABLE 5
ADDRESS BIT 6
DGND 7
DVDD 8
PIN 1
IDENTIFIER
AD9853
TOP VIEW
(Not to Scale)
33 CA ENABLE
32 RESET
31 TEST DATA OUT
30 TEST DATA
ENABLE
29 TEST DATA IN
28 TEST LATCH
27 TEST CLK
26 TEST DATA OUT
15 PLL Filter
PLL Loop Filter Connection
DGND 9
25 IOUTB
16, 19, 23 AGND
17 NC
18 DAC Rset
20, 22 AVDD
21 DAC Baseline
O24 IOUT
B25 IOUTB
SO27 Test CLK
28 Test Latch
L29 Test Data In
ETE30 Test Data Enable
Analog Ground
No Connect
Rset Resistor Connection
Analog Supply Voltage
DAC Baseline Voltage
Analog Current Output of the
DAC
Complementary Analog Cur-
rent Output of the DAC
Factory Use—Scan Clock
Factory Use—Scan Latch
Factory Use—Serial Test Data
In
Factory Use—Serial Test Data
Enable, Grounded for Normal
DGND 10
TEST DATA
OUT
11
12 13 14 15 16 17 18 19 20 21 22
24 IOUT
23 AGND
NC = NO CONNECT
Operation
32 RESET
Master Device Reset Function
33 CA Enable
Cable Amplifier Enable
34 CA Clock
Cable Amplifier Serial Control
Clock
35 CA Data
Cable Amplifier Serial Control
Data
38
REF CLK IN
Reference Clock Input
41 Data In
Input Serial Data Stream
42
TXENABLE
Pulse that Frames the Valid
Input Data Stream
–4– REV. C

4페이지










AD9853 전자부품, 판매, 대치품
Typical Performance Characteristics–AD9853
Modulated Output Spectrum with 3.3 V Supply, α = 0.25, 20.48 MHz REFCLK
00
–10
RBW = 3kHz
VBW = 3kHz
–10
RBW = 3kHz
VBW = 3kHz
SWT = 17s
SWT = 17s
–20
RF ATT = 10dB
–20
RF ATT = 10dB
REF LVL = –20dBm
REF LVL = –20dBm
–30 –30
–40 –40
–50 –50
–60 –60
–70 –70
–80 –80
–90 –90
–100
START 0Hz
6MHz/
STOP 60MHz
–100
START 0Hz
6MHz/
STOP 60MHz
Figure 1. QPSK, 320 kb/s, AOUT = 10 MHz
Figure 4. QPSK, 1.28 Mb/s, AOUT = 10 MHz
0
–10
RBW = 3kHz
VBW = 3kHz
SWT = 17s
–20 RF ATT = 10dB
REF LVL = –20dBm
O–30
–40
B–50
S–60
O–70
–80
L–90
E–100
START 0Hz
6MHz/
STOP 60MHz
TEFigure 2. QPSK, 640 kb/s, AOUT = 20 MHz
0
RBW = 3kHz
–10 VBW = 3kHz
SWT = 17s
–20 RF ATT = 10dB
REF LVL = –20dBm
–30
–40
–50
–60
–70
–80
–90
–100
START 0Hz
6MHz/
STOP 60MHz
Figure 5. QPSK, 2.56 Mb/s, AOUT = 20 MHz
0
RBW = 3kHz
–10 VBW = 3kHz
SWT = 17s
–20 RF ATT = 10dB
REF LVL = –20dBm
–30
–40
–50
–60
–70
–80
–90
–100
START 0Hz
6MHz/
STOP60 MHz
Figure 3. QPSK, 1.28 Mb/s, AOUT = 42 MHz
0
RBW = 3kHz
–10 VBW = 3kHz
SWT = 17s
–20 RF ATT = 10dB
REF LVL = –20dBm
–30
–40
–50
–60
–70
–80
–90
–100
START 0Hz
6MHz/
STOP60 MHz
Figure 6. QPSK, 5.12 Mb/s, AOUT = 42 MHz
REV. C
–7–

7페이지


구       성 총 30 페이지수
다운로드[ AD9853.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
AD9850

125 MHz Complete DDS Synthesizer

Analog Devices
Analog Devices
AD9851

CMOS 180 MHz DDS/DAC Synthesizer

Analog Devices
Analog Devices

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵