ADF5000 (Rev. A)
Document overview
- Manufacturer or author: Analog Devices, Inc.
- PDF pages: 12
Technical content
4 GHz to 18 GHz
Rev. A Document Feedback 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. Tel: 781.329.4700 ©2011–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com
FEATURES
High frequency operation: 4 GHz to 18 GHz Integrated RF decoupling capacitors Low power consumption Active mode: 30 mA Power-down mode: 17 mA Low phase noise: −147 dBc/Hz Single dc supply: 3.3 V compatible with ADF4xxx PLLs Temperature range: −40°C to +105°C Small package: 3 mm × 3 mm LFCSP
APPLICATIONS
PLL frequency range extender Point-to-point radios VSAT radios Communications test equipment GENERAL DESCRIPTION The ADF5000 prescaler is a low noise, low power, fixed RF divider block that can be used to divide down frequencies as high as 18 GHz to a lower frequency suitable for input to a PLL IC, such as the ADF4156 or the ADF4106. The ADF5000 provides a divide-by-2 function. The ADF5000 operates from a 3.3 V supply and has differential 100 Ω RF outputs to allow direct interface to the differential RF inputs of PLLs such as the ADF4156 and ADF4106. FUNCTIONAL BLOCK DIAGRAM DIVIDE BY 2 BIAS ADF5000 CE GND RFIN VDDx RFOUT RFOUT 100Ω 50Ω 100Ω 1pF 3pF 1pF 09129-001 Figure 1.
Rev. A | Page 2 of 12 TABLE OF CONTENTS
REVISION HISTORY
9/13—Rev. 0 to Rev. A 1/11—Revision 0: Initial Version
Rev. A | Page 3 of 12 SPECIFICATIONS VDD1 = VDD2 = 3.3 V ± 10%, GND = 0 V; dBm referred to 50 Ω; TA = TMIN to TMAX, unless otherwise noted. The operating temperature range is −40°C to +105°C. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments RF CHARACTERISTICS Input Frequency 4 18 GHz RF Input Sensitivity −10 +10 dBm 4 GHz to 18 GHz Output Power −10 −5 dBm Single-ended output connected into 50 Ω load −7 −2 dBm Differential outputs connected into 100 Ω differential load Output Voltage Swing 200 330 mV p-p Peak-to-peak voltage swing on each single-ended output, connected into 50 Ω load 400 660 mV p-p Peak-to-peak voltage swing on differential output, connected into 100 Ω differential load 1000 mV p-p Peak-to-peak voltage swing on each single-ended output, no load condition Phase Noise −147 dBc/Hz Input frequency (fIN) = 12 GHz, offset = 100 kHz Reverse Leakage −60 dBm RF input power (PIN) = 0 dBm, RFOUT = 4 GHz Second Harmonic Content −28 dBc Third Harmonic Content −12 dBc Fourth Harmonic Content −37 dBc Fifth Harmonic Content −19 dBc CE INPUT Input High Voltage, VIH 2.2 V Input Low Voltage, VIL 0.3 V POWER SUPPLIES Voltage Supply 3.0 3.3 3.6 V IDD (IDD1 + IDD2) Active 30 60 mA CE is high Power-Down 17 30 mA CE is low
Rev. A | Page 4 of 12 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating VDDx to GND −0.3 V to +3.9 V RFIN 10 dBm Operating Temperature Range Industrial (B Version) −40°C to +105°C Storage Temperature Range −65°C to +150°C Maximum Junction Temperature 150°C LFCSP θJA Thermal Impedance 27.3°C/W Peak Temperature 260°C Time at Peak Temperature 40 sec Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. This device is a high performance RF integrated circuit with an ESD rating of 2 kV , human body model (HBM) and is ESD sensitive. Implement proper precautions for handling and assembly. ESD CAUTION
- NC = NO CONNECT. DO NOT CONNECT
- THE EXPOSED PADDLE MUST BE
11 RFOUT
12 GND
10 RFOUT
9 GND
Figure 2. Pin Configuration Table 3. Pin Function Descriptions GND RF Ground. Tie all ground pins together. 2 RFIN Single-Ended 50 Ω Input to the RF Prescaler. This pin is ac-coupled internally via a 3 pF capacitor. 6 NC No Connect. Do not connect to this pin. ac coupling capacitor of 1 pF. to VDD2 and an ac coupling capacitor of 1 pF. 10 pF capacitor. VDD2 can be tied directly to VDD1. in parallel with a 10 pF capacitor. EPAD The LFCSP has an exposed paddle that must be connected to GND.
The evaluation board has four connectors as shown in Figure 8. compatible with SMA, 3.5 mm, and 2.92 mm cables. Figure 8. Evaluation Board Silkscreen—Top View supply, which should be connected to the J1 SMA connector. board (PCB) stack-up is shown in Figure 9. Figure 9. Evaluation Board PCB Layer Stack-Up
1 C2 10 pF, 0402 capacitor Murata GRM1555C1H100JZ01D
3 J1, J2, J3 SMA RF connector Emerson 142-0701-851
1 J4 SMA RF connector Emerson 142-0761-801
3 T1, T2, T3 Test points Vero 20-2137
tuning ranges typically required by microwave VCOs. resistor divider network or the +IN A pin directly. Figure 10. ADF5000 Used as the RF Prescaler in a Microwave 12 GHz PLL Loop
0.05 MAX
0.02 NOM
0.20 REF
0.20 MIN
COMPLIANT TO JEDEC STANDARDS MO-220-WEED-6. Figure 11. 16-Lead Lead Frame Chip Scale Package [LFCSP_WQ]
Rev. A | Page 10 of 12 NOTES
Rev. A | Page 11 of 12 NOTES
Rev. A | Page 12 of 12 NOTES ©2011–2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09129-0-9/13(A)