ADRF6510ACPZ-WP Analog Devices Inc, ADRF6510ACPZ-WP Datasheet

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ADRF6510ACPZ-WP

Manufacturer Part Number
ADRF6510ACPZ-WP
Description
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADRF6510ACPZ-WP

Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
32
Lead Free Status / RoHS Status
Supplier Unconfirmed
FEATURES
Matched pair of programmable filters and VGAs
Continuous gain control range: −5 dB to +45 dB
6-pole filter
6 dB front-end gain step
IMD3: >55 dBc for 1.5 V p-p composite output
HD2, HD3: >60 dBc for 1.5 V p-p output
Differential input and output
Adjustable output common-mode voltage
Optional dc output offset correction
Power-down feature
Single 5 V supply operation
APPLICATIONS
Baseband I/Q receivers
Diversity receivers
ADC drivers
GENERAL DESCRIPTION
The ADRF6510 is a matched pair of fully differential low noise
and low distortion programmable filters and variable gain ampli-
fiers (VGAs). Each channel is capable of rejecting large out-of-
band interferers while reliably boosting the wanted signal, thus
reducing the bandwidth and resolution requirements on the
analog-to-digital converters (ADCs). The excellent matching
between channels and their high spurious-free dynamic range
over all gain and bandwidth settings make the ADRF6510 ideal
for quadrature-based (IQ) communication systems with dense
constellations, multiple carriers, and nearby interferers.
The filters provide a six-pole Butterworth response with 0.5 dB
corner frequencies programmable through the SPI port from
1 MHz to 30 MHz in 1 MHz steps. The preamplifier that precedes
the filters offers a pin-programmable option of either 6 dB or
12 dB of gain. The preamplifier sets a differential input imped-
ance of 400 Ω and has a common-mode voltage that defaults
to 2.1 V but can be driven from 1.5 V to 2.5 V.
Rev. 0
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.
1 MHz to 30 MHz in 1 MHz steps, 0.5 dB corner frequency
SPI programmable
30 MHz Dual Programmable Filters
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The variable gain amplifiers that follow the filters provide 50 dB
of continuous gain control with a slope of 30 mV/dB. The output
buffers provide a differential output impedance of 20 Ω that is
capable of driving 1.5 V p-p into 1 kΩ loads. The output common-
mode voltage defaults to VPS/2, but it can be programmed via the
VOCM pin. The built-in dc offset correction loop can be disabled
if dc-coupled operation is desired. The high-pass corner frequency
is defined by external capacitors on the OFS1 and OFS2 pins.
The ADRF6510 operates from a 4.75 V to 5.25 V supply and
consumes a maximum supply current of 258 mA when pro-
grammed to the highest bandwidth setting. When disabled, it
consumes 2 mA. The ADRF6510 is fabricated in an advanced
silicon-germanium BiCMOS process and is available in a
32-lead, exposed paddle LFCSP. Performance is specified over
the −40°C to +85°C temperature range.
and Variable Gain Amplifiers
COMD
VPSD
DATA
COM
SDO
CLK
VPS
LE
ENBL
COM INP2 INM2
FUNCTIONAL BLOCK DIAGRAM
INP1 INM1
SPI
©2010 Analog Devices, Inc. All rights reserved.
ADRF6510
VPS
VPS
Figure 1.
COM GNSW OFS1 VPS
COM OFDS OFS2 VPS
ADRF6510
www.analog.com
OPP1
OPM1
COM
GAIN
VOCM
COM
OPM2
OPP2

Related parts for ADRF6510ACPZ-WP

ADRF6510ACPZ-WP Summary of contents

Page 1

FEATURES Matched pair of programmable filters and VGAs Continuous gain control range: − +45 dB 6-pole filter 1 MHz to 30 MHz in 1 MHz steps, 0.5 dB corner frequency SPI programmable 6 dB front-end gain step IMD3: ...

Page 2

ADRF6510 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Timing Diagrams .......................................................................... 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin ...

Page 3

SPECIFICATIONS VPS = 25° 400 Ω SOURCE Table 1. Parameter FREQUENCY RESPONSE Low-Pass Corner Frequency Step Size Corner Frequency Absolute Accuracy Corner Frequency Matching Pass-Band Ripple Gain Matching Group Delay ...

Page 4

ADRF6510 Parameter IMD3 IMD3 with Input CW Blocker 30 MHz Corner Frequency Output Noise Density Second Harmonic, HD2 Third Harmonic, HD3 IMD3 IMD3 with Input CW Blocker DIGITAL LOGIC Input High Voltage, V INH Input Low Voltage, V INL Input ...

Page 5

TIMING DIAGRAMS CLK WRITE BIT LSB DATA NOTES 1. THE FIRST DATA BIT DETERMINES WHETHER THE PART IS WRITING TO OR READING FROM THE INTERNAL CORNER FREQUENCY WORD REGISTER. FOR A WRITE OPERATION, ...

Page 6

ADRF6510 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltages, VPS, VPSD ENBL, GNSW, OFDS, LE, CLK, DATA, SDO INP1, INM1, INP2, INM2 OPP1, OPM1, OPP2, OPM2 OFS1, OFS2 GAIN Internal Power Dissipation θ (Exposed Pad Soldered to Board) JA Maximum ...

Page 7

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic 1 VPSD 2 COMD CLK 5 DATA 6 SDO 7, 9, 13, 19, 22, 28 COM 8, 12, 16, 25, 29 VPS 10, 11, ...

Page 8

ADRF6510 TYPICAL PERFORMANCE CHARACTERISTICS VPS = 25° 400 Ω SOURCE 50 BANDWIDTH = 30MHz 45 +25°C 40 VPS = 4.75V, 5V, 5.25V –40°C VPS = 4.75V, 5V, 5.25V ...

Page 9

FREQUENCY (Hz) Figure 11. Frequency Response vs. Bandwidth Setting (Gain = 30 dB), Log Scale ...

Page 10

ADRF6510 FREQUENCY (MHz) 0 0.5 1.0 1.5 0.75 0.50 BANDWIDTH = 1MHz 0.25 BANDWIDTH = 30MHz 0 –0.25 –0.50 –0. FREQUENCY (MHz) Figure 17. IQ Amplitude Mismatch vs. Frequency ...

Page 11

BANDWIDTH = 30MHz f1 = 14MHz 15MHz 25 –40°C +25°C 20 +85° GAIN (dB) Figure 23. In-Band OIP3 vs. Gain over Temperature (Preamp Gain = 6 ...

Page 12

ADRF6510 GAIN (dB) Figure 29. Noise Figure vs. Gain over Bandwidth Setting, Preamp Gain = 12 dB (Noise Figure at 1/2 Bandwidth) ...

Page 13

FREQUENCY (MHz) Figure 35. Input Impedance vs. Frequency (Bandwidth Setting = 30 MHz ...

Page 14

ADRF6510 THEORY OF OPERATION The ADRF6510 consists of a matched pair of buffered, program- mable filters followed by variable gain amplifiers and output ADC drivers. The block diagram of a single channel is shown in Figure 41. The programmability of ...

Page 15

The corner frequency of the filters is defined by RC products, which can vary by ±30 typical process. Therefore, all the parts are factory calibrated for corner frequency, resulting in a residual ±10% corner frequency variation over the ...

Page 16

ADRF6510 PROGRAMMING THE FILTERS The 0.5 dB corner frequencies for both filters are programmed simultaneously through the SPI port. A 5-bit register stores the codes for corner frequencies of 1 MHz through 30 MHz (see Table 4). The SPI protocol ...

Page 17

GAIN = 40dB –110 –115 –120 GAIN = 20dB –125 –130 GAIN = 0dB –135 0.5 1.0 1.5 2.0 FREQUENCY (MHz) Figure 47. Total Output Noise with a 1 MHz Corner Frequency for Three Different Gain Settings Note ...

Page 18

ADRF6510 The most challenging scenario in terms of dynamic range is the presence of a large out-of-band blocker accompanying a weaker in-band wanted signal. In this case, the maximum input level is dictated by the blocker and its inclination to ...

Page 19

APPLICATIONS INFORMATION BASIC CONNECTIONS Figure 48 shows the basic connections for operating the ADRF6510. A voltage from 4. 5.25 V should be applied to the supply pins. Each supply pin should be decoupled with at least one low ...

Page 20

ADRF6510 An overall RF-to-baseband EVM performance was obtained with the ADL5387 IQ demodulator preceding the ADRF6510. An 840 MHz RF signal with a modulation setting of 64 QAM and a 7 MHz symbol rate was used. The local oscillator (LO) ...

Page 21

ETC1-1-13 RFC 1000pF 120nH 120nH 1000pF V POS VPA VPB 0.1µF 100pF 2 COM VPB 3 BIAS QHI ADL5387 4 VPL QLO V POS 5 VPL IHI 100pF 0.1µF 6 VPL ILO 7 ...

Page 22

ADRF6510 A complete design example is shown in Figure 54. A third-order Chebyshev differential filter with a 31 MHz corner frequency interfaces the output of the ADRF6510 to that of an ADC input. The 20 Ω source impedance reflects the ...

Page 23

EVALUATION BOARD The ADRF6510 evaluation board is available with software control to program the filter bandwidth 4-layer board with split ground plane for analog and digital sections. Special care is taken to place the power decoupling capacitors ...

Page 24

ADRF6510 XC11 3.3V 10PF XC6 22PF DGND 3.3V XU2 8 VCC 1 XR1 SCLSDA 7 WC_N GND 4 24LC64-I-SN DGND XU1 33 SDO PA0/INT0* 34 DATA 3.3V PA1/INT1* 35 CLK PA2/SLOE 36 ...

Page 25

EVALUATION BOARD CONFIGURATION OPTIONS Table 5 lists the components of the main section of the ADRF6510 evaluation board. Table 5. Components Function C1, C2, C4, C5, C11, C12, Power supply and ground decoupling. Nominal supply decoupling C15, C16, L1, L2, ...

Page 26

ADRF6510 USB Section Configuration Options Table 6 lists the components of the USB section of the ADRF6510 evaluation board. Table 6. Components XC1, XC2, XC6 XC3 to XC5, XC7, XC8, XC12 to XC19 XC9 to XC11 XD1 XJ1 XR1, XR2 ...

Page 27

... OUTLINE DIMENSIONS PIN 1 INDICATOR 12° MAX 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE 1 Model Temperature Range ADRF6510ACPZ-R7 −40°C to +85°C ADRF6510ACPZ-WP −40°C to +85°C ADRF6510-EVALZ RoHS Compliant Part. 5.00 BSC SQ 0.60 MAX 24 0.50 BSC TOP 4.75 VIEW BSC SQ 0.50 ...

Page 28

ADRF6510 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09002-0-4/10(0) Rev Page ...

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