EVAL-ADF4360-4EBZ1 Analog Devices Inc, EVAL-ADF4360-4EBZ1 Datasheet

BOARD EVALUATION FOR ADF4360-4

EVAL-ADF4360-4EBZ1

Manufacturer Part Number
EVAL-ADF4360-4EBZ1
Description
BOARD EVALUATION FOR ADF4360-4
Manufacturer
Analog Devices Inc
Datasheet

Specifications of EVAL-ADF4360-4EBZ1

Main Purpose
Timing, Frequency Synthesizer
Embedded
No
Utilized Ic / Part
ADF4360-4
Primary Attributes
Single Integer-N PLL with VCO
Secondary Attributes
1.6GHz, 200kHz PFD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
Output frequency range: 1450 MHz to 1750 MHz
Divide-by-2 output
3.0 V to 3.6 V power supply
1.8 V logic compatibility
Integer-N synthesizer
Programmable dual-modulus prescaler 8/9, 16/17, 32/33
Programmable output power level
3-wire serial interface
Analog and digital lock detect
Hardware and software power-down mode
APPLICATIONS
Wireless handsets (DECT, GSM, PCS, DCS, WCDMA)
Test equipment
Wireless LANs
CATV equipment
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.
REF
DATA
CLK
LE
IN
ADF4360-4
N = (BP + A)
PRESCALER
P/P+1
DATA REGISTER
24-BIT
COUNTER
14-BIT R
LOAD
LOAD
FUNCTIONAL BLOCK DIAGRAM
REGISTER
COUNTER
COUNTER
INTEGER
13-BIT B
5-BIT A
AGND
FUNCTION
AV
24-BIT
LATCH
DD
DV
DGND
Figure 1.
DD
DETECT
LOCK
COMPARATOR
Integrated Synthesizer and VCO
PHASE
CE
DIVSEL = 1
DIVSEL = 2
GENERAL DESCRIPTION
The ADF4360-4 is a fully integrated integer-N synthesizer
and voltage-controlled oscillator (VCO). The ADF4360-4 is
designed for a center frequency of 1600 MHz. In addition, a
divide-by-2 option is available, whereby the user gets an RF
output of between 725 MHz and 875 MHz.
Control of all the on-chip registers is through a simple 3-wire
interface. The device operates with a power supply ranging from
3.0 V to 3.6 V and can be powered down when not in use.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
CPGND
R
MULTIPLEXER
CHARGE
SET
PUMP
CORE
VCO
MUTE
© 2004 Analog Devices, Inc. All rights reserved.
OUTPUT
STAGE
÷2
MUXOUT
V
V
RF
RF
CP
C
C
ADF4360-4
VCO
TUNE
C
N
OUT
OUT
A
B
www.analog.com

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EVAL-ADF4360-4EBZ1 Summary of contents

Page 1

FEATURES Output frequency range: 1450 MHz to 1750 MHz Divide-by-2 output 3 3.6 V power supply 1.8 V logic compatibility Integer-N synthesizer Programmable dual-modulus prescaler 8/9, 16/17, 32/33 Programmable output power level 3-wire serial interface Analog and digital ...

Page 2

ADF4360-4 TABLE OF CONTENTS Specifications..................................................................................... 3 Timing Characteristics..................................................................... 5 Absolute Maximum Ratings............................................................ 6 Transistor Count........................................................................... 6 ESD Caution.................................................................................. 6 Pin Configuration and Functional Descriptions.......................... 7 Typical Performance Characteristics ............................................. 8 Circuit Description........................................................................... 9 Reference Input Section............................................................... 9 Prescaler (P/P + ...

Page 3

SPECIFICATIONS 3.3 V ± 10%; AGND = DGND = VCO Table 1. Parameter REF CHARACTERISTICS IN REF Input Frequency IN REF Input Sensitivity IN REF Input Capacitance IN ...

Page 4

... REFIN PFD MHz MHz 1600; Loop B kHz. REFIN PFD 13 The spurious signals are measured with the EVAL-ADF4360-xEB1 Evaluation Board and the HP8562E Spectrum Analyzer. The spectrum analyzer provides the REF the synthesizer MHz @ 0 dBm. REFOUT B Version Unit −111 dBc/Hz typ −133 dBc/Hz typ − ...

Page 5

TIMING CHARACTERISTICS 3.3 V ± 10%; AGND = DGND = 0 V; 1.8 V and 3 V logic levels used VCO Table 2. Parameter Limit MIN MAX ...

Page 6

ADF4360-4 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter GND GND VCO VCO DD Digital I/O Voltage to GND Analog I/O ...

Page 7

PIN CONFIGURATION AND FUNCTIONAL DESCRIPTIONS Table 4. Pin Functional Descriptions Pin No. Mnemonic Description 1 CPGND Charge Pump Ground. This is the ground return path for the charge pump Analog Power Supply. This ranges from 3 ...

Page 8

ADF4360-4 TYPICAL PERFORMANCE CHARACTERISTICS 0 –10 –20 –30 –40 –50 –60 –70 1 –80 –90 2 –100 –110 –120 –130 –140 –150 –160 –170 1k 10k 100k FREQUENCY OFFSET (Hz) Figure 4. Open-Loop VCO Phase Noise –70 –75 –80 –85 ...

Page 9

CIRCUIT DESCRIPTION REFERENCE INPUT SECTION The reference input stage is shown in Figure 10. SW1 and SW2 are normally closed switches. SW3 is normally open. When power-down is initiated, SW3 is closed, and SW1 and SW2 are opened. This ensures ...

Page 10

ADF4360-4 MUXOUT AND LOCK DETECT The output multiplexer on the ADF4360 family allows the user to access various internal points on the chip. The state of MUXOUT is controlled by M3, M2, and M1 in the function latch. The full ...

Page 11

The operating current in the VCO core is programmable in four steps: 5 mA, 10 mA, 15 mA, and 20 mA. This is controlled by Bits PC1 and PC2 in the control latch. OUTPUT STAGE The RF A and RF ...

Page 12

ADF4360-4 LATCH STRUCTURE Table 6 shows the three on-chip latches for the ADF4360 family. The two LSBs determines which latch is programmed. Table 6. Latch Structure PRESCALER CURRENT VALUE SETTING 2 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 ...

Page 13

Table 7. Control Latch PRESCALER CURRENT VALUE SETTING 2 DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 P2 P1 PD2 PD1 CPI6 CPI5 CP14 CPI6 CPI5 CPI3 CPI2 ...

Page 14

ADF4360-4 Table 8. N Counter Latch DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DIV2 CPG B13 B12 B11 B10 DIVSEL B13 B12 B11 ...

Page 15

Table 9. R Counter Latch BAND BACKLASH SELECT CLOCK DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 RSV RSV BSC2 BSC1 TMB LDP ABP2 TEST MODE BIT SHOULD BE SET TO 0 FOR NORMAL ...

Page 16

ADF4360-4 POWER-UP Power-Up Sequence The correct programming sequence for the ADF4360-4 after power-up is counter latch 2. Control latch 3. N counter latch Initial Power-Up Initial power-up refers to programming the part after the application of voltage to ...

Page 17

Hardware Power-Up/Power-Down If the ADF4360-4 is powered down via the hardware (using the CE pin) and powered up again without any change to the N counter register during power-down, the part locks at the cor- rect frequency because it is ...

Page 18

ADF4360-4 CONTROL LATCH With (C2, C1) = (0, 0), the control latch is programmed. Table 7 shows the input data format for programming the control latch. Prescaler Value In the ADF4360 family, P2 and P1 in the control latch set ...

Page 19

N COUNTER LATCH With (C2, C1) = (1, 0), the N counter latch is programmed. Table 8 shows the input data format for programming the N counter latch. A Counter Latch program the 5-bit A counter. The ...

Page 20

ADF4360-4 APPLICATIONS DIRECT CONVERSION MODULATOR Direct conversion architectures are increasingly being used to implement base station transmitters. Figure 17 shows how ADI parts can be used to implement such a system. The circuit block diagram shows the AD9761 TxDAC® being ...

Page 21

FIXED FREQUENCY LO Figure 18 shows the ADF4360-4 used as a fixed frequency LO at 1.6 GHz. The low-pass filter was designed using ADIsimPLL for a channel spacing of 8 MHz and an open-loop bandwidth of 40 kHz. The maximum ...

Page 22

... ADF4360-4. This gives approximately −2 dBm output power across the frequency range of the ADF4360-4. Both single-ended architectures can be examined using the EVAL-ADF4360-4EB1 evaluation board. If the user does not need the differential outputs available on the ADF4360-4, the user may either terminate the unused out- put or combine both outputs using a balun ...

Page 23

... MHz to 1750 MHz 1450 MHz to 1750 MHz 1450 MHz to 1750 MHz 1450 MHz to 1750 MHz Rev Page 0.60 MAX PIN 1 INDICATOR 2.45 EXPOSED 2.30 SQ PAD (BO TTOMVIEW) 2. 0.23 MIN 2.50 REF Package Option CP-24-2 CP-24-2 CP-24-2 CP-24-2 CP-24-2 CP-24-2 Evaluation Board ADF4360-4 ...

Page 24

ADF4360-4 NOTES Purchase of licensed components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, ...

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