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MAX9981_1

更新时间： 2024-11-18 04:41:31
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美信 - MAXIM /
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Evaluation Kit

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MAX9981_1 数据手册

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19-2691; Rev 0; 12/02  
MAX9981 Evaluation Kit  
General Description  
Features  
ꢀ Fully Assembled and Tested  
ꢀ +27.3dBm Input IP3  
ꢀ +13.6dBm Input 1dB Compression Point  
ꢀ 825MHz to 915MHz RF Frequency  
ꢀ 725MHz to 1085MHz LO Frequency  
ꢀ 70MHz to 170MHz IF Frequency  
ꢀ 2.1dB Conversion Gain  
The MAX9981 evaluation kit (EV kit) simplifies the evalu-  
ation of the MAX9981 825MHz to 915MHz dual high-lin-  
earity active down-converter mixer. It is fully assembled  
and tested at the factory. Standard 50Ω SMA connec-  
tors are included 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) and art-  
work for each layer of the PC board.  
ꢀ 10.8dB Noise Figure  
ꢀ 42dB Channel-to-Channel Isolation  
ꢀ -5dBm to +5dBm LO Drive  
Contact MaximDirect sales at 888-629-4642 to check  
on pricing and availability for these kits.  
ꢀ Built-In LO Switch with 52dB LO1-to-LO2 Isolation  
Component Suppliers  
Ordering Information  
SUPPLIER  
Coilcraft  
PHONE  
WEBSITE  
PART  
TEMP RANGE IC PACKAGE  
800-322-2645 www.coilcraft.com  
36 QFN-EP*  
(6mm × 6mm)  
MAX9981EVKIT -40°C to +85°C  
*EP = Exposed paddle.  
Digi-Key  
Johnson  
800-344-4539 www.digikey.com  
507-833-8822 www.johnsoncomponents.com  
Mini-Circuits 718-934-4500 www.minicircuits.com  
Murata 770-436-1300 www.murata.com  
Component List  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
33pF ±±5, ±ꢀ0 Cꢀꢁ ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188±C1H33ꢀJ  
560nH 5ꢀ wire-wound  
inductors (1008)  
Coilcraft 1008CS-561XJBC  
C1, C4  
C2, C3  
2
2
4
2
2
4
4
L1–L4  
4
3.9pF ±ꢀ.2±pF, ±ꢀ0 Cꢀꢁ ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188±C1H3R9C  
R1, R2  
R3–R6  
R7  
2
4
1
267Ω 1ꢀ resistors (0603)  
137Ω 1ꢀ resistors (0603)  
47kΩ 5ꢀ resistor (0603)  
1ꢀꢀpF ±±5, ±ꢀ0 Cꢀꢁ ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188±C1H1ꢀ1J  
C±, C6,  
C9, C1ꢀ  
PC board edge-mount SMA RF  
connectors (flat tab launch)  
Johnson 142-0741-856  
J1–J6  
6
1±pF ±±5, ±ꢀ0 Cꢀꢁ ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188±C1H1±ꢀJ  
4:1 transformers (200:50)  
Mini-Circuits TC4-1W-7A  
C7, C8  
T1, T2  
TP1  
1
1
1
Large test point for 0.063in PC board  
(red) Mouser 151-107  
ꢀ.ꢀ33µF ±1ꢀ5, 2±0 ꢂ7R ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188R71E333K  
C11, C12  
Large test point for 0.063in PC board  
(black) Mouser 151-103  
TP2  
22ꢀpF ±±5, ±ꢀ0 Cꢀꢁ ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188±C1H221J  
C13, C16,  
C17, C2ꢀ  
Large test point for 0.063in PC board  
(white) Mouser 151-101  
TP3  
U1  
1
1
MAX9981EGX-T*  
33ꢀpF ±±5, ±ꢀ0 Cꢀꢁ ceramic  
capacitors (ꢀ6ꢀ3)  
Murata ꢁRM188±C1H331J  
C14, C1±,  
C18, C19  
*The exposed paddle conductor on U1 must be solder  
attached to a grounded pad on the circuit to ensure a proper  
electrical/thermal design.  
________________________________________________________________ Maxim Integrated Products  
1
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.  
12345678

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