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MFG:MAX D/C:O2
Part Number: MAX2308
MFG: MAX
D/C: O2
Description: The MAX2306/MAX2308/MAX2309 are IF receivers designed for dual-band, dual-mode, and single-mode N-CDMA...
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MAX2308
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DataSheet
General Description
MAX2308 General Description
The MAX2306/MAX2308/MAX2309 are IF receivers designed for dual-band, dual-mode, and single-mode N-CDMA and W-CDMA cellular phone systems. The signal path consists of a variable-gain amplifier (VGA) and I/Q demodulator. The devices feature guaranteed +2.7V operation, a gain control range of over 110dB, and high input IP3 (-31dBm at 35dB gain, 3.4dBm at -35dB gain).
Unlike similar devices, the MAX2306 family of receivers includes dual oscillators and synthesizers to form a self-contained IF subsystem. The synthesizer's reference and RF dividers are fully programmable through a 3-wire serial bus, enabling dual-band system architectures using any common reference and IF frequency. The differential baseband outputs have enough bandwidth to suit both N-CDMA and W-CDMA systems, and offer saturated output levels of 2.7Vp-p at a low +2.75V supply voltage. Including the low-noise voltage-controlled oscillator (VCO) and synthesizer, the MAX2306 draws only 26mA from a +2.75V supply in CDMA (differential IF) mode.
The MAX2306/MAX2308/MAX2309 are available in 28- pin QFN packages.
MAX2308 Maximum Ratings
VCC to GND..........................................................-0.3V to +6.0V
SHDN to GND.............................................-0.3V to (VCC + 0.3V)
STBY, BUFEN, MODE, EN, DATA,
CLK, DIVSEL .............................................-0.3V to (VCC + 0.3V)
VGC to GND...............-0.3V, the lesser of +4.2V or (VCC + 0.3V)
AC Signals TANKH ±, TANKL ±,
REF, FM ±, CDMA ± ...................................................1.0V peak
Digital Input Current SHDN, MODE, DIVSEL,
BUFEN, DATA, CLK, EN, STBY..........................................±10mA
Continuous Power Dissipation (TA = +70°C)
28-Pin QFN (derate 28.5mW/°C above TA = +70°C)..........2W
Operating Temperature Range ......................-40°C to +85°C
Junction Temperature...................................................+150°C
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10s) ............................+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.
SHDN to GND.............................................-0.3V to (VCC + 0.3V)
STBY, BUFEN, MODE, EN, DATA,
CLK, DIVSEL .............................................-0.3V to (VCC + 0.3V)
VGC to GND...............-0.3V, the lesser of +4.2V or (VCC + 0.3V)
AC Signals TANKH ±, TANKL ±,
REF, FM ±, CDMA ± ...................................................1.0V peak
Digital Input Current SHDN, MODE, DIVSEL,
BUFEN, DATA, CLK, EN, STBY..........................................±10mA
Continuous Power Dissipation (TA = +70°C)
28-Pin QFN (derate 28.5mW/°C above TA = +70°C)..........2W
Operating Temperature Range ......................-40°C to +85°C
Junction Temperature...................................................+150°C
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10s) ............................+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.
MAX2308 Features
·Complete IF Subsystem Includes VCO and Synthesizer
·Supports Dual-Band, Triple-Mode Operation
·VGA with >110dB Gain Control
·Quadrature Demodulator
·High Output Level (2.7V)
·Programmable Charge-Pump Current
·Supports Any IF Frequency Between 40MHz and 300MHz
·3-Wire Programmable Interface
·Low Supply Voltage (+2.7V)
·Supports Dual-Band, Triple-Mode Operation
·VGA with >110dB Gain Control
·Quadrature Demodulator
·High Output Level (2.7V)
·Programmable Charge-Pump Current
·Supports Any IF Frequency Between 40MHz and 300MHz
·3-Wire Programmable Interface
·Low Supply Voltage (+2.7V)
MAX2308 Typical Application
·Single/Dual/Triple-Mode CDMA Handsets
·Globalstar Dual-Mode Handsets
·Wireless Data Links
·W-CDMA Handsets
·Wireless Local Loop (WLL)
·Globalstar Dual-Mode Handsets
·Wireless Data Links
·W-CDMA Handsets
·Wireless Local Loop (WLL)
MAX2308 Connection Diagram
MAX2308
PDF/DataSheet Download
- Datasheet: MAX2308
- File Size: 302160 KB
- Manufacturer: Maxim
- Click here to Download
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