NJM2542V-TE1 Nisshinbo

NJM2542 VIF/SIF Demodulator DESCRIPTION PACKAGE OUTLINE The NJM2542 is a VIF/SIF demodulator especially designed for TV and VCR based on the NTSC system. FM-PLL(Phase Locked Loop) detector reduces the number of pins and external parts, for efficient use of set space. NJM2542V FEATURES Operating Voltage 5V Alignment-free Automatic Frequency Tuning Alignment-free FM-PLL Demodulator Intercarrier type Bipolar Technology Package Outline: SSOP20 BLOCK DIAGRAM 20 19 18 17 16 15 14 13 12 11 AGC AFAMP IFAMP AFT SVCO FMDET APC DET EQAMP LIM VCO 123 4 5 6 8 9 10 7 - 1 - EQOUT EQ AFTOUT APCFLT RFAGC EQIN ADJ V+ IFIN2 VCOL1 IFIN1 VCOL2 GND RFAGC VREF OUT VDETOUT AGCFLT1 AFNFB AGCFLT2 LIMIN AFOUT NJM2542 ABSOLUTE MAXIMUM RATINGS (T =25C) A Parameter Symbol Ratings Unit Supply Voltage Vcc 6 V Power Dissipation P *600 mW D Operating Temperature Range T -20 to +80 C opr Storage Temperature Range T -40 to +150 C stg * Test IC soldered on PC board RECOMMENDED OPERATING VOLTAGE RANGE (T =25C) A Parameter Condition Symbol Min. Typ. Max. Unit Operating Voltage Vcc 4.75 5.0 5.25 V ELECTRICAL CHARACTERISTICS Standard Test Conditions: (T =25C,Vcc=5V,IF=45.75MHz/90dBuV,IF IN has 1:1Transformer instead of SAW filter.) A Parameter Condition Symbol Min. Typ. Max. Unit AFT-Defeat Supply Current Icc - 51 - mA IFGR-MAX(AGCFLT=GND) VIF Section (45.75MHz/90dBuV) No IF Signal Video Output Level (DC) VDC - 3.6 - V FGR-MAX(AGCFLT=GND) Video Output Level Video : 100% White,87.5% Mod Vo 1.5 1.9 2.3 Vp-p Video Bandwidth -3dB Point fvc - 7 - MHz Video S/N VIDEO:100% White,87.5%Mod Video S/N 50 56 - dB Intermodulation P/C/S=1/-10/-10dB IM 34 40 50 dB Differential Gain DG - 2 7 % Differential Phase DP - 2 7 deg Input Signal Voltage Sensitivity -3dB Point VINMIN - 44 52 dBuV Maximum Input signal Voltage VS Ratio (>24%,<34%) VINMAX 101 105 - dBuV IF Gain Control Range VINMAX-VINMIN GR 49 61 - dB RF AGC Maximum Voltage IFGR-MAX(AGCFLT=GND) VRAH 4.3 4.9 5.0 V + RF AGC Minimum Voltage IFGR-MIN(AGCFLT= V) VRAL 0 0.03 0.5 V Picture Carrier Capture Range 1 CL-U - 1.3 - MHz Picture Carrier Capture Range 2 CL-L - 3.5 - MHz AFT Sensivity Sf 20 30 - mV/kHz AFT Maximum Voltage VAFH 4.2 4.9 5.0 V AFT minimum Voltage VAFL 0 0.05 0.5 V Sync Level VOSYNC - 1.35 - V AFTOUT=2.5V VCO Frequency Range FVCOWB - 250 - kHz Center=45.65MHz SIF Section(SIF=4.5MHz/90dBuV) Audio Output DC Voltage LIMIN=4.5MHz CW VDCA 1.8 2.2 2.6 V Audio Output LIMIN=4.5MHz FM25kHz dev VAFO 390 540 770 mVrms Total Harmonic Distortion LIMIN=4.5MHz FM25kHz dev THDAF - 0.2 1.0 % Input Limiting Voltage Sensivity LIM - 38 - dBuV AM Rejection Ratio FM25kHzDEV :AM30% AMR 50 56 - dB Audio S/N De-Emphasis: ON AF S/N - 56 - dB - 2 -