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Part: MAX2690EVKIT
Category:
Others
Description: Evaluation Kit: Max2690
Company: Maxim Integrated Products
Datasheet: Download MAX2690EVKIT datasheet File size : 2659 kB
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Datasheet text preview:
19-1282; Rev 0; 10/97
KIT ATION EVALU BLE AVAILA
Low-Noise, 2.5GHz Downconverter Mixer
____________________________Features
o 7.6dBm Input Third-Order Intercept Point o 10dB Downconverter Mixer Noise Figure o 7.9dB Gain o 400MHz to 2500MHz Wideband Operation o Low Cost o +2.7V to +5.5V Single-Supply Operation o <1µA Shutdown Mode o Ultra-Small 10-Pin µMAX Package
_______________General Description
T h e MAX2690 is a miniature, low-noise, low-power downconverter mixer designed for use in portable cons u m e r equipment. Signals at the RF input port are mixed with signals at the local-oscillator (LO) port using a double-balanced mixer. The RF port frequency range is 400MHz to 2500MHz. The LO port frequency range is 700MHz to 2500MHz. The IF frequency range is 10MHz to 500MHz, provided the LO and RF frequencies are chosen appropriately. The IF port is differential, which provides good linearity and low LO emissions, as well as providing compatibility with applications using differential IF filters, such as CDMA cellular phones. The mixer noise figure is 10dB at 900MHz. The MAX2690 draws 16mA at VCC = 3V and operates from a +2.7V to +5.5V supply. A logic-controlled shutdown mode reduces the supply current to less than 1µA, making it ideal for battery-operated equipment. This device is offered in a miniature 10-pin µMAX package.
MAX2690
________________________Applications
2.45GHz Industrial-Scientific-Medical (ISM) Band Radios Wireless Local Area Networks (WLANs) Personal Communications Systems (PCS) Code-Division Multiple Access (CDMA) Communications Systems Cellular and Cordless Phones Hand-Held Radios
______________Ordering Information
PART MAX2690EUB TEMP. RANGE -40°C to +85°C PIN-PACKAGE 10 µMAX
Typical Operating Circuit appears at end of data sheet.
__________________Pin Configuration
TOP VIEW
________________Functional Diagram
TOP VIEW
MAX2690
LGND 1 GND RFIN RFBYP VCC 2 3 4 5 10 SHDN 9 IFOUT+ IFOUTGNDLO LO LGND 1 GND RFIN RFBYP VCC 2 3 4 5 BIAS 10 SHDN 9 8 7 6 IFOUT+ IFOUTGNDLO LO
MAX2690
8 7 6
µMAX
µMAX
________________________________________________________________ Maxim Integrated Products
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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468.
Low-Noise, 2.5GHz Downconverter Mixer MAX2690
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..-0.3V to +6.0V RFIN Input Power.....10dBm LO Input Power ........10dBm SHDN Input Voltage ..-0.3V to (VCC + 0.3V) Continuous Power Dissipation 10-Pin µMAX (derate 4.1mW/°C above +70°C) ...330mW Operating Temperature Range MAX2690EUB .........-40°C to +85°C Junction Temperature ......+150°C Storage Temperature Range .....-65°C to +165°C Lead Temperature (soldering, 10sec) .....+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(VCC = +2.7V to +5.5V, no RF signals applied, LO = open, IFOUT+ = IFOUT- = VCC, SHDN = high, LGND = GND = GNDLO = 0V, TA = TMIN to TMAX. Typical values are at VCC = +3.0V and TA = +25°C, unless otherwise noted. Minimum and maximum values are guaranteed by design and characterization over temperature.) PARAMETER Operating Supply Current Shutdown Input Voltage High Shutdown Input Voltage Low Shutdown Supply Current Shutdown Input Bias Current SHDN = 0V SHDN = low 0V < SHDN < VCC -5 4 0.4 2 25 CONDITIONS MIN 9.5 2 0.5 TYP 16 MAX 20.1 UNITS mA V V µA µA
AC ELECTRICAL CHARACTERISTICS
(MAX2690 EV kit; VCC = +3.0V; PLO = -3dBm; PRF = -25dBm; SHDN = high; RFIN matched for 900MHz, 1.95GHz, and 2.45GHz as noted below. Inductor connected from LGND to GND = 39nH for 900MHz operation, 27nH for 1.95GHz operation, and 6.8nH for 2.45GHz operation. TA = +25°C, unless otherwise noted.) PARAMETER Conversion Gain (Note 1) Gain Variation over Temperature Input Third-Order Intercept CONDITIONS fRF = 900MHz, fLO = 1.1GHz fRF = 1.95GHz, fLO = 1.75GHz fRF = 2.45GHz, fLO = 2.1GHz fRF = 1.95GHz, TA = TMIN to TMAX (Note 2) Two tones at -25dBm per tone, fRF2 = 1MHz above fRF fRF = 900MHz, fLO = 1.1GHz fRF = 1.95GHz, fLO = 1.75GHz fRF = 2.45GHz, fLO = 2.1GHz MIN TYP 7.9 6.4 4 ±0.6 7.6 5.3 4.3 10 11.5 12 dB dBm ±1.2 dB dB MAX UNITS
Noise-Figure Single Sideband
fRF = 900MHz, fLO = 1.1GHz fRF = 1.95GHz, fLO = 1.75GHz fRF = 2.45GHz, fLO = 2.1GHz
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Low-Noise, 2.5GHz Downconverter Mixer
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2690 EV kit; VCC = +3.0V; PLO = -3dBm; PRF = -25dBm; SHDN = high; RFIN matched for 900MHz, 1.95GHz, and 2.45GHz as noted below. Inductor connected from LGND to GND = 39nH for 900MHz operation, 27nH for 1.95GHz operation, and 6.8nH for 2.45GHz operation. TA = +25°C, unless otherwise noted.) PARAMETER LO Emission at IF Port CONDITIONS fRF = 900MHz, fLO = 1.1GHz fRF = 1.95GHz, fLO = 1.75GHz fRF = 2.45GHz, fLO = 2.1GHz fRF = 900MHz, fLO = 1.1GHz LO Emission at RF Port fRF = 1.95GHz, fLO = 1.75GHz fRF = 2.45GHz, fLO = 2.1GHz IF/2 Spurious Response (Note 3) Turn-On Time Turn-Off Time fRF = 1.0GHz, fLO = 1.1GHz RF input = -15dBm (Note 4) (Note 4) fRF = 1.85GHz, fLO = 1.75GHz fRF = 2.275GHz, fLO = 2.1GHz MIN TYP -32 -32 -28 -30 -27 -25 -74 -62 -56 1 1.6 µs µs dBm dBm dBm MAX UNITS
MAX2690
Note 1: Consult the Applications Information section for information on designing a matching network. Note 2: Guaranteed by design and characterization. Note 3: This spurious response is caused by a higher-order mixing product (2x2). Specified RF frequency is applied and IF output power is observed at the desired IF frequency (200MHz for fRF = 900MHz, or 1.95GHz, and 350MHz for fRF = 2.45GHz). Note 4: From the time SHDN goes high to the time ICC reaches 90% of its final value (on), or from the time SHDN goes low to the time ICC drops below 10µA (off).
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