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Maxim MAX9982 Manual

Evaluation kit
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Table of Contents

19-2693; Rev 1; 1/04

General Description

The MAX9982 evaluation kit (EV kit) simplifies the evalu-
ation of the MAX9982 825MHz to 915MHz high-linearity
active down-converter mixer. It is fully assembled and
tested at the factory. Standard 50Ω SMA connectors
are included on the EV kit for the inputs and outputs to
allow quick and easy evaluation on the test bench.
This document provides a list of equipment required to
evaluate the device, a straightforward test procedure to
verify functionality, a description of the EV kit circuit, the
circuit schematic, a bill of materials (BOM) for the kit,
and artwork for each layer of the PC board.
Contact MaximDirect sales at 888-629-4642 to check
on pricing and availability for these kits.
Component Suppliers
SUPPLIER
PHONE
Coilcraft
800-322-2645 www.coilcraft.com
Digi-Key
800-344-4539 www.digikey.com
Johnson
507-833-8822 www.johnsoncomponents.com
Mini-Circuits
718-934-4500 www.minicircuits.com
Murata
770-436-1300 www.murata.com
DESIGNATION
QTY
33pF ±5%, 50V C0G ceramic
C1, C2, C6, C7
4
capacitors (0603)
Murata GRM1885C1H330J
0.033µF ±10%, 25V X7R ceramic
C3
1
capacitor (0603)
Murata GRM188R71E333K
0.1µF ±10%, 16V X7R ceramic
C4, C5
2
capacitors (0603)
Murata GRM188R71C104K
220pF ±5%, 50V C0G ceramic
C8, C11
2
capacitors (0603)
Murata GRM1885C1H221J
330pF ±5%, 50V C0G ceramic
C9, C10
2
capacitors (0603)
Murata GRM1885C1H331J
560nH ±5% wire-wound inductors
L1, L2
2
(1008)
Coilcraft 1008CS-561XJBC
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
MAX9982 Evaluation Kit
WEBSITE
DESCRIPTION
Fully Assembled and Tested
+26.8dBm Input IP3
+13dBm Input 1dB Compression Point
825MHz to 915MHz RF Frequency
725MHz to 1085MHz LO Frequency
70MHz to 170MHz IF Frequency
2dB Conversion Gain
12dB Noise Figure
-5dBm to +5dBm LO Drive
Built-In LO Switch with 43dB LO1-to-LO2 Isolation

Ordering Information

PART
TEMP RANGE
MAX9982EVKIT
-40°C to +85°C
*EP = Exposed paddle.
DESIGNATION
QTY
R1
1
249Ω ±1% resistor (0603)
R3, R4
1
137Ω ±1% resistors (0603)
R5
1
47kΩ ±5% resistor (0603)
PC board edge-mount SMA RF
J1–J4
4
connectors (flat tab launch)
Johnson 142-0741-856
4:1 transformer (200:50)
T1
1
Mini-Circuits TC4-1W-7A
Large test point for 0.062in PC board
TP1
1
(red) Mouser 151-107
Large test point for 0.062in PC board
TP2
1
(black) Mouser 151-103
Large test point for 0.062in PC board
TP3
1
(white) Mouser 151-101
U1
1
MAX9982ETP-T*
*The exposed paddle conductor on U1 must be solder
attached to a grounded pad on the circuit board to ensure a
proper electrical/thermal design.
Features
IC PACKAGE
Thin QFN 20-EP*
(5mm
5mm)
Component List
DESCRIPTION
1

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Summary of Contents for Maxim MAX9982

  • Page 1: General Description

    *The exposed paddle conductor on U1 must be solder attached to a grounded pad on the circuit board to ensure a Coilcraft 1008CS-561XJBC proper electrical/thermal design. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

  • Page 2: Quick Start

    Table 1 lists the equipment required to verify the opera- HP 437B RF power meter tion of the MAX9982 EV kit. It is intended as a guide only, and some substitutions can be made. HP 8561 Spectrum analyzer HP 8482A...
  • Page 3 Doing so can cause the on-chip ESD diodes to con- DC-Blocking Capacitors duct and could damage the part. The MAX9982 has internal baluns on the RF, LO1, and Modifying the EV Kit LO2 inputs. These inputs have almost 0Ω resistance at DC;...
  • Page 4 MAX9982 Evaluation Kit RF SIGNAL GENERATOR POWER SUPPLY BENCH MULTIMETER (HP 8648B) (AG E3631A) (HP 34401A) 870.000MHz 168 mA 5.0V 250mA (MAX) (AMMETER) RF SIGNAL GENERATOR (HP 8648B) 770.000MHz RFIN MAX9982 OPEN = LO1 LO_SEL GND = LO2 IFOUT RF SIGNAL GENERATOR...
  • Page 5 MAX9982 Evaluation Kit 330pF 5.0V 5.0V 560nH IFOUT 137Ω 4:1 (200:50) TRANSFORMER 220pF 220pF 137Ω 560nH 330pF 33pF 33pF RFIN MAX9982 0.033µF 33pF 249Ω RFBIAS EXPOSED PADDLE 33pF 5.0V 5.0V 0.1µF 0.1µF 47kΩ LO_SEL Figure 2. MAX9982 EV Kit Schematic _______________________________________________________________________________________...
  • Page 6 Figure 3. MAX9982 EV Kit PC Board Layout—Top Silkscreen Figure 4. MAX9982 EV Kit PC Board Layout—Top Soldermask 1.0" 1.0" Figure 5. MAX9982 EV Kit PC Board Layout—Top Layer Metal Figure 6. MAX9982 EV Kit PC Board Layout—Inner Layer 2 (GND) _______________________________________________________________________________________...
  • Page 7 Silkscreen Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

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