max2308 Maxim Integrated Products, Inc., max2308 Datasheet
max2308
Related parts for max2308
max2308 Summary of contents
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... Including the low-noise voltage-con- trolled oscillator (VCO) and synthesizer, the MAX2306 draws only 26mA from a +2.75V supply in CDMA (dif- ferential IF) mode. The MAX2306/MAX2308/MAX2309 are available in 28- pin Thin QFN and QFN packages. Single/Dual/Triple-Mode CDMA Handsets Globalstar Dual-Mode Handsets Wireless Data Links ...
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CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6.0V CC SHDN to GND.............................................-0. STBY, BUFEN, MODE, EN, DATA, CLK, DIVSEL ...........................................-0. VGC to GND...............-0.3V, the lesser ...
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... CDMA IF VGAs and I/Q Demodulators AC ELECTRICAL CHARACTERISTICS (MAX2306/MAX2308/MAX2309 EV kit 19.2MHz, 0.6Vp-p synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for f = 183.7MHz REF +35dB voltage gain, differential output load = 10kΩ, all power levels referred to 50Ω, T PARAMETER ...
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... CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer AC ELECTRICAL CHARACTERISTICS (continued) (MAX2306/MAX2308/MAX2309 EV kit 19.2MHz, 0.6Vp-p synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for f = 183.7MHz REF +35dB voltage gain, differential output load = 10kΩ, all power levels referred to 50Ω, T ...
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... CDMA IF VGAs and I/Q Demodulators (MAX2306/MAX2308/MAX2309 EV kits, V synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for +35dB voltage gain, differential output load = 10kΩ, all power levels referred to 50Ω, T RECEIVE SUPPLY CURRENT vs. SUPPLY VOLTAGE 35.00 32. +85°C A 30. +25° ...
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... CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer (MAX2306/MAX2308/MAX2309 EV kits, V synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for +35dB voltage gain, differential output load = 10kΩ, all power levels referred to 50Ω PORT PARALLEL RESISTANCE vs ...
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... CDMA IF VGAs and I/Q Demodulators PIN MAX2306 MAX2308 MAX2309 1, 28 — — — — — — — — — — 12, 13 12 ...
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... IS control bit. The VGA’s gain is controlled over a 110dB range with the VGC pin. The output of the VGA drives the RF ports of a quadrature demodulator. The MAX2306/MAX2308 provide two types of FM MAX2309 demodulation, controlled by the FM_TYPE (FT) control bit. When FM_TYPE is “1,” the signal is passed through both the I and Q signal paths for subsequent lowpass filtering and A/D conversion at baseband ...
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CDMA IF VGAs and I/Q Demodulators 2.4kΩ 0.068µF 33pF 10kΩ 33pF 10kΩ 33pF 10kΩ 33pF 10kΩ Figure 1. MAX2306 Typical Operating Circuit Voltage-Controlled Oscillator, Buffers, and Quadrature Generation The LO signal for downconversion is provided by a ...
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CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer Table 1. MAX2306 Control Register States OPERATIONAL ACTION MODE RESULT Shutdown pin completely SHUTDOWN powers down the chip 0 in shutdown register bit leaves SHUTDOWN serial port active 0 in ...
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... CDMA IF VGAs and I/Q Demodulators Table 2. MAX2308 Control Register States OPERATIONAL ACTION MODE RESULT Shutdown pin completely shuts down SHUTDOWN chip 0 in shutdown register bit leaves seri- SHUTDOWN al port active 0 in standby pin turns off VGA and STANDBY modulator only CDMA CDMA operation ...
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... CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer 2.4kΩ 0.068µF 0.01µF 33pF 10kΩ 2pF 33pF 10kΩ Figure 2. MAX2308 Typical Operating Circuit 12 ______________________________________________________________________________________ 47pF 0.01µF 0.01µF BYP BYP 0.01µF MAX2308 CP_OUT BYP 0.01µF GND FM- TANKH+ FM+ 33nH CDMA+ TANKH- 680Ω ...
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CDMA IF VGAs and I/Q Demodulators Table 3. MAX2309 Control Register States OPERATIONAL ACTION MODE RESULT Shutdown pin com- SHUTDOWN pletely powers down the chip 0 in shutdown register SHUTDOWN bit leaves serial bus active 0 in standby pin turns ...
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CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer 0.068µF 2.4kΩ 10kΩ 10kΩ DISCRIMINATOR 455kHz V CC LIMITER I FM Figure 3. MAX2309 Typical Operating Circuit 14 ______________________________________________________________________________________ 47pF 0.01µF BYP BYP 0.01µF CP_OUT BYP GND STBY DIVSEL 33pF ...
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CDMA IF VGAs and I/Q Demodulators TANK_+ Figure 4. Voltage-Controlled Oscillators VCO_H DATA 13-BIT CONTROL VCO_L Figure 5. 3-Wire Control Block Diagram ______________________________________________________________________________________ with VCO and Synthesizer V CC 800µ ...
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CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer MSB *SB DATA *START BIT MUST BE LOGIC HIGH. CLK RISE AND FALL REQUIRED PRIOR TO EN GOING LOW. EN Figure 6. 3-Wire Interface Timing Diagram Table 4. Control Register, ...
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CDMA IF VGAs and I/Q Demodulators START BIT SHIFT REGISTER 1 M1 REGISTER REGISTER CP1 AND R1 REGISTERS CP 1/1 CP2 AND R2 REGISTERS CP 2/1 /1 CTRL REGISTER TM Figure 7. Programming ...
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... CP2 R2 REGISTER DS TM POL CONTROL COUNTER REF BIAS SHDN STBY MAX2309 ______________________________________________________________________________________ CDMA+ CDMA- MAX2306 EN MAX2308 LOGIC CLK DATA FM+ FM 010 11 011 110 COUNTER Ø POL LOCK DET ...
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CDMA IF VGAs and I/Q Demodulators V CC FM- FM+ CDMA+ CDMA- BYP BYP MAX2306 TANKL+ BYP AGND TANKL- ______________________________________________________________________________________ with VCO and Synthesizer DAC AVCC QOUT+ QOUT- VGA DATA EN CLK PHASE CHARGE PUMP DETECTOR ...
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... CC GND 6 16 REF 7 15 (T) QFN-EP For the latest package outline information www.maxim-ic.com/packages. Printed USA is a registered trademark of Maxim Integrated Products. Pin Configurations 21 FM+ 20 CDMA+ 19 CDMA- MAX2308 18 VGC DATA 15 EN (T) QFN-EP N.C. CDMA+ CDMA- VGC V CC DATA EN Package Information ...