AD6432AST Analog Devices, AD6432AST Datasheet
AD6432AST
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AD6432AST Summary of contents
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... Maximum reference frequency is 25 MHz. REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices ...
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AD6432–SPECIFICATIONS Parameter RX RF MIXER RF Input Frequency AGC Conversion Gain Variation Input 1 dB Compression Point Input Third-Order Intercept SSB Noise Figure RX IF AMPLIFIER AGC Gain Variation Input Resistance Operating Frequency Range GAIN CONTROL Total Gain Control Range ...
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... Thermal Characteristics: 44-lead TQFP package: ORDERING GUIDE Temperature Package Model Range Description AD6432AST – +85 C 44-Pin Plastic TQFP *ST = Thin Quad Flatpack. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. ...
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AD6432 Pin Label Description 1 GND PCB Ground 2 MODO TX Modulator Output 3 VPDV LO2 Divided by 2 Supply Voltage 4 CMTX On-Chip TX Mixer Common 5 LOLO Differential RX Mixer LO2 Input Negative 6 LOHI Differential RX Mixer ...
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PCAP TXPU QTXN QTXP ITXN VS1 VPTX DECOUPLING ITXP MODO VS1 C29 C14 0.1 F 0.01 F VPDV DECOUPLING T1 C18 6 1 LOLO 0.1 F R14 2 249 100pF RFHI C2 R3 ...
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AD6432 QTX R22 20k 20k VDC R6 R4 20k 20k ITX R21 50 VDC VGREF VP R29 10k 1 V+ AD1580 C13 3 NC 0.1µF 2 V– INTERFACE BOX TO TEST INSTR ITX IFIN QTX FREF MODO ...
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45MHz 26MHz IN 9 400 , IF = 13MHz 13MHz 7.5 ...
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AD6432 – INTERMEDIATE FREQUENCY – MHz Figure 9. IF Amplifier and Demodulator Gain vs. IF Frequency + POS ...
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T A –0.6 –0.8 –1.0 –1.2 –1 FREQUENCY OF VCO – MHz Figure 15. PLL Loop Voltage at FLTR Pin (KVCO) vs. Frequency –10 –20 –30 –40 –50 –60 –70 0 0.5 ...
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AD6432 –16.0 –16.5 –17.0 –17.5 –18.0 –18.5 –19.0 –19.5 –20.0 –40 – TEMPERATURE – C Figure 21. Tx Desired Sideband Gain vs. Temperature + 280 MHz, I and ...
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PRODUCT OVERVIEW The AD6432 provides most of the active circuitry required to realize a complete low power, single-conversion superhetero- dyne time division transceiver, or the latter part of a double- conversion transceiver, at input receive frequencies up to 350 MHz ...
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... Pin GREF can be tied to an external voltage reference, V provided, for example AD1580 (1.21 V) voltage reference. When using the Analog Devices AD7013 (IS54, TETRA and satellite receiver applications) and AD7015 or AD6421 (GSM, to DCS1800, PCS1900) baseband converters, the external refer- ence may also be provided by the reference output of the – ...
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The interface between the AD6432 and the AD6421 baseband converter is shown in Figure 35. The AD7015 baseband converter provides a V iary DAC in the AD7015 can be used to generate the AGC voltage. Since it uses ...
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AD6432 Local Oscillator Input The Local Oscillator (LO) input port is differential and consists of two functionally identical pins, LOHI and LOLO. It accepts a signal of 200 mV p frequency between 200 MHz and 600 MHz. Inputs ...
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Gain Control The AD6432 contains a Gain TC Compensation circuit that provides a nominal 80 dB dynamic range of automatic gain control. The GAIN input pin of the gain circuit is driven by the AD6421 Automatic Gain Control DAC (AGCDAC), ...
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AD6432 Evaluation Board Description This four layer board demonstrates both the transmit and receive functions of the AD6432. The top internal layer is a ground plane and the bottom internal layer is a strategically partitioned power plane with DUT power ...
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Table II. Connector Signal Description Pin Name Description GND Analog and Power Ground. ITXP I Channel Transmit Plus Modulation Input. ITXN I Channel Transmit Minus Modulation Input. QTXP Q Channel Transmit Plus Modulation Input. QTXN Q Channel Transmit Minus Input. ...
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AD6432 QTXN QTXP ITXN ITXP R12 0 VS1 C28 VPTX 0.1 F DECOUPLING MODO VS1 C29 C14 VPDV 0.1 F 0.01 F DECOUPLING T1 R35 C18 6 1 LOIP 125 0 R20 4 3 ...
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REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 44-Lead Plastic Thin Quad Flatpack (TQFP) (ST-44) 0.063 (1.60) MAX 0.472 (12.00) SQ 0.030 (0.75) 0.018 (0.45 SEATING PLANE TOP VIEW (PINS DOWN 0.006 (0.15) 0.002 ...
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