AD9704-EB Analog Devices Inc, AD9704-EB Datasheet

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AD9704-EB

Manufacturer Part Number
AD9704-EB
Description
BOARD EVAL FOR AD9704
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD9704-EB

Module/board Type
Evaluation Board
For Use With/related Products
AD9704
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FEATURES
175 MSPS update rate
Low power member of pin-compatible
Low power dissipation
Wide supply voltage: 1.7 V to 3.6 V
SFDR to Nyquist
AD9707 NSD @ 10 MHz output, 125 MSPS: −147 dBc/Hz
Adjustable full-scale current outputs: 1 mA to 5 mA
On-chip 1.0 V reference
CMOS-compatible digital interface
Common-mode output: adjustable 0 V to 1.2 V
Power-down mode < 2 mW @ 3.3 V (SPI controllable)
Self-calibration
Compact 32-lead LFCSP_VQ, RoHS compliant package
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
Rev. A
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
TxDAC product family
12 mW @ 80 MSPS, 1.8 V
50 mW @ 175 MSPS, 3.3 V
AD9707: 84 dBc @ 5 MHz output
AD9707: 83 dBc @ 10 MHz output
AD9707: 75 dBc @ 20 MHz output
Pin Compatible. The AD9704/AD9705/AD9706/AD9707
Low Power. Complete CMOS DAC operates on a single
Self-Calibration. Self-calibration enables true 14-bit INL
Twos Complement/Binary Data Coding Support. Data input
line of TxDAC converters is pin-compatible with the
AD9748/AD9740/AD9742/AD9744 TxDAC line
(LFCSP_VQ package).
supply of 3.6 V down to 1.7 V, consuming 50 mW (3.3 V)
and 12 mW (1.8 V). The DAC full-scale current can be
reduced for lower power operation. Sleep and power-down
modes are provided for low power idle periods.
and DNL performance in the AD9707.
supports twos complement or straight binary data coding.
8-/10-/12-/14-Bit, 175 MSPS TxDAC
AD9704/AD9705/AD9706/AD9707
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
R
5.
6.
7.
8.
9.
SET
Digital-to-Analog Converters
1.7V TO
0.1µF
Flexible Clock Input. A selectable high speed, single-ended,
Device Configuration. Device can be configured through
Easy Interfacing to Other Components. Adjustable
On-Chip Voltage Reference. The AD9704/AD9705/AD9706/
Industry-Standard 32-Lead LFCSP_VQ Package.
and differential CMOS clock input supports 175 MSPS
conversion rate.
pin strapping, and SPI control offers a higher level of
programmability.
common-mode output allows for easy interfacing to other
signal chain components that accept common-mode levels
from 0 V to 1.2 V.
AD9707 include a 1.0 V temperature-compensated band gap
voltage reference.
1.7V
3.6V
CLK+
CLK–
TO
3.6V
REFIO
FS ADJ
CLKVDD
CLKCOM
DVDD
DCOM
FUNCTIONAL BLOCK DIAGRAM
1.0V REF
©2006–2007 Analog Devices, Inc. All rights reserved.
DIGITAL INPUTS (DB13 TO DB0) SLEEP/CSB
SEGMENTED
SWITCHES
Figure 1. AD9707
LATCHES
AVDD
1.7V TO 3.6V
CURRENT
SOURCE
ARRAY
SWITCHES
LSB
ACOM
AD9707
SPI
OTCM
IOUTA
IOUTB
www.analog.com
PIN/SPI/RESET
MODE/SDIO
CMODE/SCLK
®

Related parts for AD9704-EB

AD9704-EB Summary of contents

Page 1

... Easy Interfacing to Other Components. Adjustable common-mode output allows for easy interfacing to other signal chain components that accept common-mode levels from 1 On-Chip Voltage Reference. The AD9704/AD9705/AD9706/ AD9707 include a 1.0 V temperature-compensated band gap voltage reference. 9. Industry-Standard 32-Lead LFCSP_VQ Package. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. ...

Page 2

... Absolute Maximum Ratings.......................................................... 10 Thermal Characteristics ............................................................ 10 Pin Configurations and Function Descriptions ......................... 11 AD9707 ........................................................................................ 11 AD9706 ........................................................................................ 12 AD9705 ........................................................................................ 13 AD9704 ........................................................................................ 14 Typical Performance Characteristics ........................................... 15 AD9707 ........................................................................................ 15 AD9704, AD9705, and AD9706............................................... 22 Terminology .................................................................................... 28 Theory of Operation ...................................................................... 29 REVISION HISTORY 4/07—Rev. 0: Rev. A Changes to Features List .................................................................. 1 Changes to Product Highlights....................................................... 1 Changes to General Description .................................................... 3 Changes to Table 3............................................................................ 6 Changes to Table 4 ...

Page 3

... In addition, a power- down mode reduces the standby power dissipation to approxi- mately 2.2 mW. The AD9704/AD9705/AD9706/AD9707 has an optional serial peripheral interface (SPI®) that provides a higher level of program- mability to enhance performance of the DAC. An adjustable output, common-mode feature allows for easy interfacing to other components that require common modes from ...

Page 4

... Rev Page AD9705 AD9704 Min Typ Max Min Typ Max 10 8 ±0.10 ±0.36 ±0.03 ±0.10 ±0.09 ±0.31 ±0.02 ±0.03 −0.03 0 +0.03 −0.03 0 +0.03 − ...

Page 5

... Rev Page AD9704/AD9705/AD9706/AD9707 AD9705 AD9704 Min Typ Max Min Typ 0.6 1 0.6 42.5 58 42.5 −0.2 +0.03 +0.2 −0.2 +0.03 −40 +85 −40 AD9705 AD9704 Min Typ Max Min Typ 175 175 2.5 2.5 2.5 2 ...

Page 6

... Max 3 2 0.9 0 0.9 +10 −10 + 1.4 0.3 1.6 0.6 2 1.5 2.25 0.75 1.5 2.25 1.5 0.5 1.5 Rev Page AD9705 AD9704 Min Typ Max Min Typ 2 0.9 0 −10 +10 − 1.4 1.4 0.3 0.3 1.6 1.6 0.6 0.6 2.8 2 0.75 1 ...

Page 7

... Rev Page AD9704/AD9705/AD9706/AD9707 AD9705 AD9704 Min Typ Max Min Typ 10 8 ±0.10 ±0.36 ±0.03 ±0.09 ±0.30 ±0.02 −0.03 0 +0.03 −0.03 0 −2.7 −0.2 +2.7 −2.7 −0.2 ...

Page 8

... Rev Page AD9705 AD9704 Min Typ Max Min Typ 0.22 0.28 0.22 9.5 16 9.5 −1 −0.1 +1 −1 −0.1 −40 +85 −40 AD9705 AD9704 Min Typ Max Min Typ 5.6 5 2.5 2.5 2.5 2 −135.1 −126.3 9.5 8.0 ...

Page 9

... LPW IOUTA OR IOUTB 0.1% Figure 2. Timing Diagram Rev Page AD9704/AD9705/AD9706/AD9707 AD9705 AD9704 Min Typ Max Min Typ 1.2 1.8 1.2 1 +10 10 − − + 2.3 2 2.4 2.4 0.1 0.1 6.2 6 ...

Page 10

... AD9704/AD9705/AD9706/AD9707 ABSOLUTE MAXIMUM RATINGS Table 7. With Parameter Respect to AVDD ACOM DVDD DCOM CLKVDD CLKCOM ACOM DCOM ACOM CLKCOM DCOM CLKCOM AVDD DVDD AVDD CLKVDD DVDD CLKVDD SLEEP DCOM Digital Inputs, MODE DCOM IOUTA, IOUTB ACOM REFIO, FS ADJ, OTCM ACOM CLK+, CLK–, CMODE ...

Page 11

... CLKCOM Clock Common. 13 CLK− Negative Differential Clock Input. 12 CLK+ Positive Differential Clock Input. 11 CLKVDD Clock Supply Voltage (1 3.6 V). 10, 26 DCOM Digital Common. 3 DVDD Digital Supply Voltage (1 3.6 V). AD9704/AD9705/AD9706/AD9707 DB7 ADJ PIN 1 DB6 2 23 REFIO INDICATOR DVDD 3 22 ACOM AD9707 DB5 ...

Page 12

... AD9704/AD9705/AD9706/AD9707 AD9706 Table 10. AD9706 Pin Function Descriptions Pin No. Mnemonic Description 27 DB11 (MSB) Most Significant Data Bit (MSB 32, DB10 to DB1 Data Bit 10 to Data Bit DB0 (LSB) Least Significant Data Bit (LSB). 25 SLEEP/CSB In pin mode, active high powers down chip. In SPI mode, this pin is the serial port chip select (active low). ...

Page 13

... DCOM Digital Common Connect. 3 DVDD Digital Supply Voltage (1 3.6 V). DB3 ADJ PIN 1 DB2 2 23 REFIO INDICATOR DVDD 3 22 ACOM AD9705 DB1 4 21 IOUTA DB0 (LSB IOUTB TOP VIEW OTCM (Not to Scale AVDD PIN/SPI/RESET CONNECT Figure 5. AD9705 Pin Configuration Rev Page AD9704/AD9705/AD9706/AD9707 ...

Page 14

... AD9704/AD9705/AD9706/AD9707 AD9704 Table 12. AD9704 Pin Function Descriptions Pin No. Mnemonic Description 27 DB7 (MSB) Most Significant Data Bit (MSB 32, 1 DB6 to DB1 Data Bit 6 to Data Bit 1. 2 DB0 (LSB) Least Significant Data Bit (LSB). 25 SLEEP/CSB In pin mode, active high powers down chip. ...

Page 15

... OUT Figure 9. SFDR vs MSPS OUT 100 Rev Page AD9704/AD9705/AD9706/AD9707 (MHz) OUT Figure 10. SFDR vs 125 MSPS OUT (MHz) OUT Figure 11. SFDR vs 175 MSPS OUT I = 5mA OUTFS I = 2mA OUTFS I = 1mA OUTFS (MHz) OUT Figure 12. SFDR vs. f and I @ 175 MSPS OUT OUTFS 55 60 ...

Page 16

... AD9704/AD9705/AD9706/AD9707 OTCM = OTCM = 1. (MHz) OUT Figure 13. SFDR vs. f and OTCM @ 175 MSPS OUT 65MSPS CLOCK –10 –8 –6 –4 A (dBFS) OUT Figure 14. SFDR vs. A and f OUT CLOCK –115 –120 –125 f = 125MSPS CLOCK –130 f = 65MSPS CLOCK –135 –140 –145 –150 –155 –160 ...

Page 17

... CODE Figure 20. Typical Uncalibrated DNL 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 5000 10000 CODE Figure 21. Typical Calibrated INL AD9704/AD9705/AD9706/AD9707 0.6 0.5 0.4 0.3 0.2 0.1 0 –0.1 –0.2 0 15000 +25° 15000 Figure 23. SFDR vs. f – ...

Page 18

... AD9704/AD9705/AD9706/AD9707 –10 f – –30 SFDR = 74dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 25. Dual-Tone SFDR = 78MSPS CLOCK = 15.0MHz OUT1 = 15.4MHz OUT2 Rev Page – 78MSPS CLOCK – 15.0MHz OUT1 f = 15.4MHz OUT2 – 15.8MHz OUT3 f = 16.2MHz OUT4 – ...

Page 19

... OUT Figure 27. SFDR vs (MHz) OUT Figure 28. SFDR vs MSPS OUT (MHz) OUT Figure 29. SFDR vs MSPS OUT 100 OUT Rev Page AD9704/AD9705/AD9706/AD9707 1mA OUTFS 2mA OUTFS (MHz) OUT Figure 30. SFDR vs. f and MSPS OUT OUTFS 1mA 75 OUTFS 2mA OUTFS (MHz) OUT Figure 31. SFDR vs. f ...

Page 20

... AD9704/AD9705/AD9706/AD9707 –115 –120 –125 –130 f = 65MSPS, CLOCK I = 1mA OUTFS –135 –140 –145 f = 65MSPS, CLOCK I = 2mA –150 OUTFS –155 –160 (dBFS) OUT Figure 33. NSD vs and I OUT CLOCK CLOCK 25MSPS CLOCK LOWER (MHz) OUT Figure 34. Dual-Tone IMD vs. Lower OUT CLOCK f = 25MSPS 70 CLOCK 65 60 ...

Page 21

... OUT SFDR = 80dBc 31 36 Rev Page AD9704/AD9705/AD9706/AD9707 f = 78MSPS CLOCK f = 15.0MHz OUT1 f = 15.4MHz OUT2 SFDR = 77dBc AMPLITUDE = 0dBFS FREQUENCY (MHz) Figure 42. Dual-Tone SFDR f = 78MSPS CLOCK f = 15.0MHz OUT1 ...

Page 22

... AD9705 –135 –140 –145 AD9706 –150 AD9707 –155 –160 (MHz) OUT Figure 44. AD9704, AD9705, AD9706, AD9707 NSD vs. f 175 MSPS 0.03 0.02 0.01 0 –0.01 –0. 100 150 CODE Figure 45. AD9704 Typical Uncalibrated INL 0.01 0 –0.01 –0.02 –0. 100 ...

Page 23

... OUT SFDR = 67dBc –30 AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 51. AD9704 Single-Tone SFDR – 78MSPS CLOCK – 15.0MHz OUT1 f = 15.4MHz OUT2 –30 SFDR = 67dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 – ...

Page 24

... AD9704/AD9705/AD9706/AD9707 –10 f – –30 SFDR = 77dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 56. AD9706 Dual-Tone SFDR = 78MSPS CLOCK = 15.0MHz OUT1 = 15.4MHz OUT2 Rev Page ...

Page 25

... AD9704 –125 –130 AD9705 –135 –140 –145 AD9706 AD9707 –150 –155 –160 (MHz) OUT Figure 57. AD9704, AD9705, AD9706, AD9707 NSD vs. f 0.04 0.03 0.02 0.01 0 –0.01 –0. 100 150 CODE Figure 58. AD9704 Typical Uncalibrated INL 0.01 0 –0.01 –0.02 –0. 100 ...

Page 26

... Figure 64. AD9704 Single-Tone SFDR –10 f – –30 SFDR = 67dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 65. AD9704 Dual-Tone SFDR 3000 4000 = 78MSPS CLOCK = 15.0MHz OUT 78MSPS CLOCK = 15.0MHz OUT1 = 15.4MHz OUT2 Rev Page – 78MSPS CLOCK – ...

Page 27

... CLOCK – 15.0MHz OUT1 f = 15.4MHz OUT2 –30 SFDR = 73dBc AMPLITUDE = 0dBFS –40 –50 –60 –70 –80 –90 –100 –110 FREQUENCY (MHz) Figure 69. AD9706 Dual-Tone SFDR AD9704/AD9705/AD9706/AD9707 31 36 Rev Page ...

Page 28

... AD9704/AD9705/AD9706/AD9707 TERMINOLOGY Linearity Error (Integral Nonlinearity or INL) INL is defined as the maximum deviation of the actual analog output from the ideal output, determined by a straight line drawn from zero to full scale. Differential Nonlinearity (DNL) DNL is the measure of the variation in analog value, normalized to full scale, associated with a 1 LSB change in digital input code. ...

Page 29

... The interface allows read/write access to all registers that configure the AD9704/AD9705/AD9706/AD9707. Single or multiple byte transfers are supported, as well as MSB first or LSB first transfer formats. The serial interface port of the AD9704/AD9705/AD9706/ AD9707 is configured as a single pin I/O. General Operation of the Serial Interface There are two phases to a communication cycle with the AD9704/AD9705/AD9706/AD9707 ...

Page 30

... The remaining SCLK edges are for Phase 2 of the communication cycle. Phase 2 is the actual data transfer between the AD9704/ AD9705/AD9706/AD9707 and the system controller. Phase 2 of the communication cycle is a transfer of one, two, three, or four data bytes, as determined by the instruction byte ...

Page 31

... N N Bit 5 Bit 4 Bit 3 SWRST LNGINS PDN DCLKPOL DESKEW VER[3] CALMEM[1] CALMEM[0] SMEMWR MEMADDR[5] MEMADDR[4] MEMADDR[3] MEMDATA[5] MEMDATA[4] MEMDATA[3] CALDACFS Rev Page AD9704/AD9705/AD9706/AD9707 INSTRUCTION CYCLE DATA TRANSFER CYCLE R Figure 75. Serial Register Interface Timing, LSB First Read SCLK t t PWH PWL t DS ...

Page 32

... AD9704/AD9705/AD9706/AD9707 SPI REGISTER DESCRIPTIONS Table 16. SPI CTL—Register 0x00 Mnemonic Bit No. Direction (I/O) SDIODIR 7 I DATADIR 6 I SWRST 5 I LNGINS 4 I PDN 3 I SLEEP 2 I CLKOFF 1 I EXREF 0 I Table 17. DATA—Register 0x02 Mnemonic Bit No. Direction (I/O) DATAFMT 7 I DCLKPOL 4 I DESKEW ...

Page 33

... Bit No. Direction (I/O) MEMDATA[5:0] [5:0] I/O Table 23. TRIM—Register 0x14 Mnemonic Bit No. Direction (I/O) CALDACFS 4 I AD9704/AD9705/AD9706/AD9707 Default Description 0 1: Calibration cycle complete Initiate device self-calibration Write to static memory (calibration coefficients Read from static memory (calibration coefficients Reset calibration coefficients to default (uncalibrated). ...

Page 34

... The control amplifier allows a 5:1 adjustment span of I from setting I 156.25 μA (R span the power dissipation of the AD9704/AD9705/AD9706/ AD9707, which is proportional to I section). The second benefit relates to the ability to adjust the output over range, which is useful for controlling the transmitted power. ...

Page 35

... ACOM via Pin 19 (OTCM). This extends the compliance range of the outputs and facilitates interfacing the output of the AD9704/ AD9705/AD9706/AD9707 to components that require common- mode levels other than 0 V. The OTCM pin demands dynami- ...

Page 36

... The AD9704/AD9705/AD9706/ AD9707 are rising-edge triggered and so exhibits dynamic performance sensitivity when the data transition is close to this edge. In general, the goal when applying the AD9704/ AD9705/AD9706/AD9707 is to make the data transition close to the falling clock edge. This becomes more important as the sample rate increases ...

Page 37

... CLOCK 75MSPS CLOCK 25MSPS CLOCK 10MSPS CLOCK 0 0.01 0 OUT CLOCK Figure 83 Ratio @ DVDD = 3.3 V DVDD OUT CLOCK AD9704/AD9705/AD9706/AD9707 2.5 2.5 2.0 1.5 1.0 0 0.01 Figure 84. I DVDD 2.00 0 Figure 85. I 1.4 1.2 1.0 0.8 0.6 0.4 0 Figure 86. I vs. f CLKVDD CLOCK Rev ...

Page 38

... Logic 1 to the SLEEP/CSB pin. The SLEEP/CSB pin logic threshold is equal to 0.5 × DVDD. This digital input also contains an active pull-down circuit. The AD9704/AD9705/AD9706/AD9707 take less than power down and approximately 5 μs to power back up. Sleep and Power-Down Operation (SPI Mode) The AD9704/AD9705/AD9706/AD9707 offer three power- down functions that can be controlled through the SPI ...

Page 39

... Register 0x0F. 6. Disable the calibration clock by clearing the CALCLK Bit (Register 0x02, Bit 0). The AD9704/AD9705/AD9706/AD9707 devices allow reading and writing of the calibration coefficients. There are 33 coefficients in total. The read/write feature of the coefficients can be useful for improving the results of the self-calibration routine by averaging the results of several calibration results and loading the aver- aged results back into the device ...

Page 40

... VSWR. Note that approxi- mately half the signal power is dissipated across R SINGLE-ENDED BUFFERED OUTPUT USING AN OP AMP An op amp such as the ADA4899-1 can be used to perform a single-ended current-to-voltage conversion, as shown in Figure 90. The AD9704/AD9705/AD9706/AD9707 are config- ured with a pair of series resistors, R feedback resistor, R formula V OUT ...

Page 41

... ⎜ ⎟ MAX REF ⎝ R ⎠ − V MIN MAX OUT The common-mode voltage of the output is determined by the formula V = − OUT MAX 2 AD9704/AD9705/AD9706/AD9707 AD9704/AD9705 AD9706/AD9707 IOUTA 21 REFIO 23 OTCM IOUTB 20 Figure 91. Single-Supply Differential Buffer Rev Page – ADA4841 OUT + ADA4841-2 – ...

Page 42

... The digital inputs are designed to be driven from various data pattern generators, with the on-board option to add a resistor network for proper load termination. Provisions are also made to operate the AD9704/AD9705/AD9706/AD9707 with either the internal or the external reference exercise the power- down feature. ...

Page 43

... EVALUATION BOARD SCHEMATICS RIBBON R A Figure 92. Digital Inputs Rev Page AD9704/AD9705/AD9706/AD9707 05926-051 RCOM ...

Page 44

... AD9704/AD9705/AD9706/AD9707 3 RC060 3 RC060 3 RC060 3 RC060 Figure 93. Output Signal Conditioning Rev Page 05926-052 3 RC060 RC080 5 JP9 ERA6YEB323V,ERA6Y RC080 5 JP8 ERA6YEB323V,ERA6Y RC080 5 JP7 ERA6YEB323V,ERA6Y 3 RC060 R7 ...

Page 45

... RC0603 JP20 JP23 CC0603 JP30 JP21 Figure 94. Clock Rev Page AD9704/AD9705/AD9706/AD9707 05926-053 RC0603 CC0603 JP16 ...

Page 46

... AD9704/AD9705/AD9706/AD9707 3 RC060 JP5 3 RC060 JP4 JP1 3 RC060 Figure 95. SPI Rev Page 05926-054 ...

Page 47

... RC0603 RC0603 CC0603 CC0603 Figure 96. Power Supplies Rev Page AD9704/AD9705/AD9706/AD9707 05926-077 RC0603 RC0603 CC0603 CC0603 ...

Page 48

... AD9704/AD9705/AD9706/AD9707 EVALUATION BOARD LAYOUT Figure 97. Assembly—Primary Side Figure 98. Assembly—Secondary Side Rev Page ...

Page 49

... AD9704/AD9705/AD9706/AD9707 Figure 99. Layer 1—Primary Side Figure 100. Layer 4—Secondary Side Rev Page ...

Page 50

... AD9704/AD9705/AD9706/AD9707 Figure 101. Layer 2—Ground Plane Figure 102. Layer 3—Power Plane Rev Page ...

Page 51

... AD9705BCPZRL7 −40°C to +85°C AD9706BCPZ 1 −40°C to +85°C 1 AD9706BCPZRL7 −40°C to +85°C AD9707BCPZ 1 −40°C to +85°C 1 AD9707BCPZRL7 −40°C to +85°C AD9704-EB AD9705-EB AD9706-EB AD9707- RoHS Compliant Part. 5.00 BSC SQ 0.60 MAX 0.50 BSC TOP 4.75 VIEW BSC SQ 0 ...

Page 52

... AD9704/AD9705/AD9706/AD9707 NOTES ©2006–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05926-0-4/07(A) Rev Page ...

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