cxa3235n Sony Electronics, cxa3235n Datasheet
cxa3235n
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cxa3235n Summary of contents
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All Band TV Tuner IC with On-chip PLL Description The CXA3235/3236N is a monolithic TV tuner IC which integrates local oscillator and mixer circuits for VHF band, local oscillator and mixer circuits for UHF band amplifier and a ...
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Block Diagram and Pin Configuration 1 SCL BUS 2 SDA Receiver ADSW 3 4 FMT Band 5 BVL SW Driver 6 BVH BU 7 USW V.REG CC IF AMP 9 MIXout1 MIXout2 10 11 ...
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Pin Description Pin Symbol Equivalent circuit No SCL SDA ADSW 4 FMT 30 5 BVL BVH MIXout1 10 ...
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Pin Symbol Equivalent circuit No VHFin UHFin1 UHFin2 VOSC1 600 VOSC2 15p 17 GND 19 UOSCB1 UOSCE1 UOSCE2 ...
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Pin Symbol Equivalent circuit No GND2 8 25 IFOUT 25 26 LOCK 27 CPE 28 CPO 60k 29 29 REFOSC Pin voltage (V) — — — — ...
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Electrical Characteristics See the Electrical Characteristics Measurement Circuit. Circuit Current Item Symbol V Circuit current A AI CCV open during VHF operation V AI CCU open during UHF operation Circuit current OSC/MIX/IF Amplifier Block Item Symbol ...
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Measured value for untuned inputs Noise figure is the direct-reading value of NF meter in DSB. Desired signal (f ) input level is –30 dBm. Undesired signal ( The measurement value is undesired signal level, it ...
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Electrical Characteristics Measurement Circuit 8200p 47k 0.047µ LOCK IF OUT XTAL 4MHz 100p SCL SDA ADSW FMT BVL +30V 22k 33p +5V 47k 2SC2785 3.3µ 1n 2.5ø2.5t 0.5p 0.5p ...
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Description of Functions The CXA3235/3236N is a terrestrial wave broadcast tuner IC which converts frequencies order to tune and detect only the desired reception frequency of VHF, CATV and UHF band signals. In addition to the mixer, ...
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Description of Analog Block Operation VHF oscillator circuit • This circuit is a differential amplifier type oscillator circuit. Pin 18 is the output and Pin 16 is the input. Oscillation is performed by connecting an LC resonance circuit including a ...
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Description of PLL Block The PLL on this IC supports the I Symbol Description ADSW Address selection SCL SCL input SDA SDA I/O 1) Mode Setting Method The modes for each frequency step are set according to the MS pin ...
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... The variable frequency division ranges of M and S are as follows, and are set as binary 1023 (32 M 511 for B-1 mode 3-1) The CXA3235N control format is as follows. 3-1-1 : B-0/B-1/B-2/B-3 Modes Write-mode : Slave Receiver MSB MODE bit7 Address byte 1 Divider byte 1 ...
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... The CXA3236N control format is as follows. The BU and FMT data order is switched for the CXA3235N. 3-2-1 : B-0/B-1/B-2/B-3 Modes Write-mode : Slave Receiver MSB MODE bit7 Address byte 1 Divider byte 1 0 Divider byte 2 M2 Control byte 1 Band SW byte Don’t care M9 is “0” for B-1 mode. ...
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Reference Divider Frequency Division Ratio Table Don’t care 3-3) The read data format is as shown below. Read-mode : Slave Transmitter MODE bit7 Address byte 1 Status byte PR A ...
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I C Bus Timing Chart 2 t WSTA SDA t SSTA SCL t HSTA START t =Start setup time SSTA t =Start waiting time WSTA t =Start hold time HSTA t =LOW clock pulse width LOW t =HIGH clock pulse ...
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Circuit current vs. Supply voltage 4.7 4.8 4.9 5.0 5.1 5 Supply voltage [V] CC Band SW output voltage vs. Output current (BU, BVH, BVL) 9.2 9.0 V 3=9V CC 8.8 8.6 5.0 ...
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Conversion gain vs. Reception frequency (Untuned input =45MHz UHF VHF (Low) VHF (High 100 200 300 400 500 600 700 800 900 Reception frequency [MHz] Next adjacent cross ...
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Tuning Response Time VHF (Low) 95MHz –90,0000ms –90,0000ms VHF (High) 395MHz T=70ms 10,0000ms 20.0ms/div UHF 413MHz UHF 847MHz T=70ms 10,0000ms 20.0ms/div —18— CXA3235/3236N 5.0V/div offset 10.0V 110,000ms 5.0V/div offset 10.0V 110,000ms ...
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CENTER 45.0MHz RES BW 1.0kHz CENTER 45.0MHz RES BW 1.0kHz IF output spectrum RF input level : –40dBm VBW 10Hz IF output spectrum RF input level : –40dBm VBW 10Hz —19— CXA3235/3236N RL=0dBm 10dB/div VHF (Low) f =55MHz RF f ...
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CENTER 45.0MHz RES BW 1.0kHz IF output spectrum RF input level : –40dBm VBW 10Hz —20— CXA3235/3236N RL=0dBm 10dB/div UHF (Low) f =800MHz RF f =845MHz LO SPAN 100.0kHz SWP 30.0s ...
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VHF Input Impedance j25 0 –j25 UHF Input Impedance j25 0 –j25 j50 j100 50MHz 50 350MHz –j100 –j50 j50 j100 50 350MHz 800MHz –j100 –j50 —21— CXA3235/3236N 12 13 1000p S11 14 15 1000p S11 ...
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IF output Impedance j25 0 –j25 j50 j100 45MHz 50 –j100 –j50 —22— CXA3235/3236N ...
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Package Outline Unit : 0.1 0.22 – 0.05 NOTE: Dimension “ ” does not include mold protrusion. SONY CODE EIAJ CODE JEDEC CODE NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). ...