CXA3125N Просмотр технического описания (PDF) - Sony Semiconductor

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CXA3125N

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

Sony Semiconductor 

CXA3125N

Electrical Characteristics

See the Electrical Characteristics Measurement Circuits 1 and 2.

(Ta=25 °C, VCC=5 V)

Item

Symbol

Measurement conditions

Min. Typ. Max. Unit

ICCVU VHF operation asymmetrical output no input signal 32 43 52 mA

ICCVB VHF operation symmetrical output no input signal 35 46 55 mA

Circuit current

ICCUU UHF operation asymmetrical output no input signal 33 44 53 mA

ICCUB UHF operation symmetrical output no input signal 36 47 56 mA

CG1U VHF operation fRF=55 MHz asymmetrical output 22 25 28 dB

CG2U VHF operation fRF=360 MHz asymmetrical output 22 25 28 dB

CG3U UHF operation fRF=360 MHz asymmetrical output 27 30 33 dB

CG4U UHF operation fRF=800 MHz asymmetrical output 27 30 33 dB

Conversion gain

∗1 CG1B

VHF operation fRF=55 MHz symmetrical output∗6

26

29

32

dB

CG2B VHF operation fRF=360 MHz symmetrical output∗6 26 29 32 dB

CG3B UHF operation fRF=360 MHz symmetrical output∗6 31 34 37 dB

CG4B UHF operation fRF=800 MHz symmetrical output∗6 31 34 37 dB

NF1

VHF operation fRF=55 MHz asymmetrical output

11 15 dB

Noise figure

NF2

∗1, ∗2 NF3

VHF operation fRF=360 MHz asymmetrical output

UHF operation fRF=360 MHz asymmetrical output

11 15 dB

9 12 dB

NF4

UHF operation fRF=800 MHz asymmetrical output

9.5 12.5 dB

VHF operation fD=55 MHz fUD=±12 MHz

CM1

96 100

dBµ

asymmetrical output

VHF operation fD=360 MHz fUD=±12 MHz

CM2

96 100

dBµ

1 % cross

asymmetrical output

modulation ∗1

UHF operation fD=360 MHz fUD=±12 MHz

∗3 CM3

asymmetrical output

90 94

dBµ

UHF operation fD=800 MHz fUD=±12 MHz

CM4

90 94

dBµ

asymmetrical output

Maximum

output power

Pomax

50 Ω load, asymmetrical output

(sat)

+10

dBm

∆fsw1 VHF operation fOSC=100 MHz

±300 kHz

Switch ON drift ∆fsw2

∗4 ∆fsw3

VHF operation fOSC=405 MHz

UHF operation fOSC=405 MHz

±400 kHz

±400 kHz

∆fsw4 UHF operation fOSC=845 MHz

±400 kHz

∆fst1 VHF operation fOSC=100 MHz

±200 kHz

+B drift

∗5 ∆fst2

∆fst3

VHF operation fOSC=405 MHz

UHF operation fOSC=405 MHz

±250 kHz

±250 kHz

∆fst4 UHF operation fOSC=845 MHz

±250 kHz

Band switch

VSWV VHF operation

0

0.5 V

voltage

VSWU UHF operation

3

5.5 V

∗1 Input level –40 dBm, Value measured with untuned input.

∗2 Noise figure is the NF meter direct-reading value (DSB measurement).

∗3 Value with a desired reception signal input level of –30 dBm, an interference signal of 100 kHz at ±12 MHz

: 30 % AM, and an interference signal level where S/I=46 dB measured with a spectrum analyzer.

∗4 Frequency variation from 3 seconds to 3 minutes after switch ON.

∗5 Frequency variation when VCC=5 V ±5 % variation.

∗6 Value which is measured as 410 Ω load impedance and compensated loss by 180 Ω resistor connected to

Pins 15 and 16.

—5—

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