CXA3355ERVQFN SONY [Sony Corporation], CXA3355ERVQFN Datasheet
CXA3355ERVQFN
Related parts for CXA3355ERVQFN
CXA3355ERVQFN Summary of contents
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GPS Down Converter IC Description The CXA3355ER developed as a GPS RF down converter. This IC realizes a reduction in the number of external parts by integrating an LNA, image rejection mixer, IF filter, PLL and VCO ...
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Block Diagram and Pin Configuration (RF (RF Mixer 36 TESTINP 37 TESTINN 4fo [fo] 38 TESTOUTP IF_AMP1 39 TESTOUTN IF Phase Shifter (IF GND (IF) ...
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Pin Description Standard pin voltage [V] Pin Symbol No ASENS — 2 DIAG — 3 AILIM — 4 GND (ANT (ANT) 3 C_EXT 1.2 Equivalent circuit — GND (ANT) ...
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Standard pin voltage [V] Pin Symbol No DATA_OUT — 1.8Vp (IF) 1 GND (IF DATA — 11 CLK — — 13 CLK_OUT — 1.8Vp-p 14 TCXO — 15 GND ...
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Standard pin voltage [V] Pin Symbol No LPF 1.2 18 GND 0 19 C_VCO 1.1 20 VCO_I 0.1 21 GND (LNA GND (LNA GND (LNA LNA_IN 0.8 27 LNA_OUT 1.8 Equivalent circuit ...
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Standard pin voltage [V] Pin Symbol No GND 0 26 GND (LNA) 1 GND 0 30 RF_INN 1.7 31 RF_INP 1.7 32 GND (RF GND (RF ...
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Standard pin voltage [V] Pin Symbol No R_EXT1 0.5 43 ENABLE — 44 R_EXT2 1.2 Equivalent circuit AC V — 42 GND (IF (IF — 43 GND (IF) V — 44 GND (IF) – ...
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Electrical Characteristics DC Characteristics Item Symbol Supply current Supply current Supply current Input impedance Zin Output impedance Zout Note: fo mode and 4fo mode use the following power-on ...
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IF Output Signal (DATA_OUT) Item Symbol DATA_OUT rise time DTr DATA_OUT fall time DTf ENABLE Signal Item Symbol Input voltage high EVIH level Input voltage low EVIL level Power-on Reset Function Item Symbol Allowable rise time MTr TCXO Item Symbol ...
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Threshold Voltage Value (Antenna Sense) Item Symbol Threshold voltage 1 Vs1 Threshold voltage 2 Vs2 Conditions Threshold voltage at which connection of the prescribed load is detected from the open status Threshold voltage for switching to the short status from ...
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Electrical Characteristics Measurement Circuit 33 10p V 1 (RF (RF (RF TESTINP TESTIN 37 TESTINN Buffer 38 TESTOUTP TESTOUT 39 TESTOUTN Buffer V 1 (IF (IF) CC ...
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Measurement Methods Note: The measurement methods in 4fo mode (TCXO = 16.368MHz 4.092MHz) are described below. 1) Total Gain Input: LNA_IN Output: TESTOUTP (Pin 38), TESTOUTN (Pin 39) ... [Pins 38 and 39 are differential output.] Serial data ...
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Total NF Input: LNA_IN Output: TESTOUTP (Pin 38), TESTOUTN (Pin 39) ... [Pins 38 and 39 are differential output.] Serial data setting: Test output block "3" (IF filter output block) ... See page 19. Monitor method: (1) Perform differential ...
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Image Rejection Ratio Input: LNA_IN Output: TESTOUTP (Pin 38), TESTOUTN (Pin 39) ... [Pins 38 and 39 are differential output.] Serial data setting: Test output block "2" (Adder output block) ... See page 19. Monitor method: (1) Perform differential ...
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C/N Input: LNA_IN Output: TESTOUTP (Pin 38), TESTOUTN (Pin 39) ... [Pins 38 and 39 are differential output.] Serial data setting: Test output block "1I" (Ich mixer output block) ... See page 19. Monitor method: (1) Perform differential – ...
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Antenna Sense • Vary V and measure the DIAG pin voltage. S • Vary V and measure the inflow current Ib to AILIM Evaluation Board V 1 (PLL (LNA) CC AILIM V 1 ...
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Initial Settings The CXA3355ER is initialized by setting the ENABLE signal (Pin 43) from low level to high level. The timing, etc. should satisfy the conditions below. In addition, the TCXO frequency and IF frequency combinations in the table below ...
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Serial Data Settings The CXA3355ER can make the PLL counter settings, perform TCXO_CLK output, select the internal IF filter, and use the test I/O circuit according to the serial data settings (3-wire bus control). The transfer bit length is 18 ...
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Description of Functions 1. Test Circuit The CXA3355ER has a test circuit for test signal I/O. The test circuit is connected between each IF block, and test I/O control can be performed by the serial data settings. The test circuit ...
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Using an External Filter When using the CXA3355ER in 4fo mode with the initial settings (see page 17) which do not require serial data setting, input and output are performed via the test circuit located between the internal IF ...
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Description of Operation Overview of Operation This IC down-converts the GPS (Global Positioning System) frequency of 1.57542GHz to fo (fo: 1.023MHz) or 4fo (4fo: 4.092MHz). The internal configuration is divided into the analog block, consisting of the amplifier, mixer and ...
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IF Filter The IF signal that passed through the adder has the undesired components outside the band eliminated by the IF filter mode the signal passes through only the LPF and is input to IF AMP2. In ...
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PLL/VCO The PLL is comprised by a VCO, frequency divider and phase/frequency comparator as shown in the figure below, and incorporates an inductor, varactor and all other necessary components. The loop filter is externally connected. Use components that satisfy ...
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Antenna Sense The power supply lines are separated internally, so antenna sense operation at the supply voltage (V 3.0 ± 0.3V is recommended. Note that the antenna sense function does not operate independently, so voltage should also be applied ...
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Application Circuit 33 32 10p V 1 (RF (RF (RF TESTINP 37 TESTINN 10n 10n 38 TESTOUTP 39 TESTOUTN V 1 (IF (IF ...
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Supplement Materials (Example of representative characteristics) Graph 1. Open CC Temp = 25˚C 5 1.60 1.65 1.70 1.75 1.80 1.85 1.90 1.95 2.00 Vcc ...
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Graph 7. Local Leak – Open CC –65 Temp = 25˚C –70 –75 –80 –85 Evaluation board LNA_IN pin Graph 9a. Antenna Sense (V vs. DIAG) S 4.0 3.5 3.0 2.5 ...
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Package Outline Unit PIN 1 INDEX Note:Cutting burr of lead are 0.05mm MAX. SONY CODE EIAJ CODE JEDEC CODE 44PIN VQFN (PLASTIC) 0.8 ± 0 Solder Plating + 0.09 ...