CXA3025N Ver la hoja de datos (PDF) - Sony Semiconductor

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CXA3025N

All Band TV Tuner IC (VHF-CATV-UHF)

Sony Semiconductor 

CXA3025N

Example of Representative Characteristics

Conversion gain vs. Reception frequency

(Untuned input)

40

30

UHF

VHF (Low)

20

VHF (High)

10

Next adjacent cross modulation vs. Reception frequency

(Untuned input)

120

VHF (Low) VHF (High)

100

UHF

fIF = 45MHz, 100kHz 30%AM

80

fUD = fD +12MHz

fUD = fD –12MHz

60

40

20

0

0 100 200 300 400 500 600 700 800 900

Receiving frequency [MHz]

0

0 100 200 300 400 500 600 700 800 900

Receiving frequency [MHz]

I/O characteristics (Untuned input)

20

0

fRF = 100MHz (VHF)

–20

fRF = 450MHz (UHF)

fIF is 45MHz in both cases

–40

–60

–60 –50 –40 –30 –20 –10 0 10

RF input level [dBm]

Noise figure vs. Reception frequency

(Untuned input, in DSB)

20

fIF = 45MHz

15

VHF (High)

VHF (Low)

10

UHF

5

0

0 100 200 300 400 500 600 700 800 900

Receiving frequency [MHz]

–8–

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