NJM2531A Mixer and Oscillator for TV Tuner DESCRIPTION The NJM2531A is mixer/oscillator especially designed for TV tuners and consists of mixers, oscillators, IF amplifier and OSC buffer for VHF,UHF and CATV band, built into one chip. The NJM2531A packaging in SSOP16 is suitable for small-sized PACKAGE OUTLINE NJM2531AV tuners. FEATURES • Operating Voltage 5V • Mixers, Oscillators, IF AMP and OSC buffer on chip • Bipolar Technology • Package Outline:SSOP16 UHFIN2 UHFIN1 VHFIN2 VHFIN1 MIXOUT2 MIXOUT1 VCC IFOUT BLOCK DIAGRAM 16 15 14 13 12 11 10 9 UHF MIX IF AMP VHF MIX U/V OSC BUFF 1 2 3 4 5 6 7 8 VHFOSC2 VOSC UHFOSC1 UHFOSC2 GND OSCOUT U/V SW UHF OSC VHFOSC1 VHF OSC SW -1- NJM2531A ABSOLUTE MAXIMUM RATINGS Parameter Symbol Supply Voltage Vcc Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg (TA=25°C) Unit V mW °C °C Ratings 7 *550 -20 to +75 -40 to +125 * Test IC soldered on PC board RECOMMENDED OPERATING VOLTAGE RANGE Parameter Condition Operating Voltage Symbol Vcc ELECTRICAL CHARACTERISTICS (Note 1) Parameter Condition Operating Current VHF OSC only, No RF input Operating Current UHF OSC only, No RF input VHF OSC only Conversion Gain fRF=55.25 to 361.25MHz, -50dBm VHF OSC only Conversion Gain fRF=55.25 to 361.25MHz, -50dBm VHF OSC only 1% Cross Modulation 1 fRF=55.25 to 361.25MHz, 75dBuV fUD=fRF +1MHz, 75dBuV UHF OSC only 1% Cross Modulation 2 fRF=367.25 to 801.25MHz, 75dBuV fUD=fRF +1MHz, 75dBuV VHF OSC only Noise Figure 1 fRF=55.25 to 361.25MHz fIF=46MHz VHF OSC only Noise Figure 2 fRF=55.25 to 361.25MHz fIF=46MHz OSC Output Power flocal=101 to 847MHz Maximum IF Output flocal=55.25 to 801.25MHz Level Symbol Icc1 Icc2 Min. 4.5 (TA=25°C) Max. Unit 5.5 V Typ. 5.0 (Vcc=5V,TA=25°C, IF=45.75MHz) Min. Typ. Max. Unit 35 41 56 mA 37 43 58 mA Ga1 - 26 - dB Ga2 - 30 - dB CM1 - 78 - dB CM2 - 70 - dB NF1 - 13 - dB NF2 - 10 - dB OUTosc - -10 - dBm OUTif - 10 - dBm (Note 1) Because AC characteristics largely depends on application circuit, these parameters are specified by the DC characteristics as shown in next page. -2- NJM2531A DC ELECTRICAL CHARACTERISTICS (VCC=Vosc=Vmix=5V,TA=25°C,UHF:Vb=2.97V,VHF:Vb=2.98V) Parameter Condition Symbol Min. Typ. Max. Pin3 Current 1:UHF Vsw=2v Iosc1 4.35 9.70 Pin3 Current 2:VHF Vsw=0.5v Iosc2 3.75 8.60 Pin7 Voltage 1:UHF Vsw=2v Voscout1 3.15 4.00 Pin7 Voltage 2:VHF Vsw=0.5v Voscout2 3.15 3.85 Pin9 Voltage Vsw=2v Vifout 1.50 2.85 Vsw=2v Icc Pin10 Current 17 47.5 Vsw=2v Imixouta1 Pin11 Current 1:UHF 1.65 3.80 Pin11 Current 2:VHF Vsw=0.5v Imixouta2 1.45 3.30 Pin12 Current 1:UHF Vsw=2v Imixoutb1 1.65 3.80 Pin12 Current 2:VHF Vsw=0.5v Imixoutb2 1.45 3.30 Pin2 Current Vsw=0.5v,Vb=2.98v,1-2PinShort Ivosc 4.60 Vsw=2v,Vb=2.97v,4-5PinShort Iuosc Pin4 Current 1.30 5.70 Pin13 Voltage Vsw=0.5v Vvmixa 2.23 2.83 Pin14 Voltage Vsw=0.5v Vvmixb 2.23 2.83 Pin15 Voltage Vsw=2v Vumixa 2.22 2.82 Vsw=2v Vumixb Pin16 Voltage 2.22 2.82 Vsw=0.5v Vvosc1 Pin1 Voltage 2.70 3.30 Pin2 Voltage Vsw=0.5v Vvosc2 2.00 2.60 Pin4 Voltage Vsw=2v Vuosc1 2.00 2.60 Pin5 Voltage Vsw=2v Vuosc2 2.70 3.30 Unit mA mA V V V mA mA mA mA mA mA mA V V V V V V V V DC TEST CIRCUIT 1u 1n 1n 16 1n 1n VHFIN1 MIXOUT2 MIXOUT1 VCC (Vmix) IFOUT UHFOSC1 UHFOSC2 GND OSCOUT U/V SW 9 VHFIN2 10 VOSC 11 UHFIN1 12 1n VHFOSC2 13 + 1n UHFIN2 14 1n VHFOSC1 15 1n 1 2 3 4 5 6 7 8 1u 1n 1n 1n VHF + 1n 1n 1n 1n Vsw Vb -3- NJM2531A AC TEST CIRCUIT UHF IN VHF IN IF OUT 2.2n 16774B 2.2n 2.2n 2.2n 2.2n 2.2n 20p VCC (Vmix) IFOUT OSCOUT U/V SW 9 MIXOUT1 4 7p 10 GND UHFOSC1 3 36p 11 MIXOUT2 2 15p 12 VHFIN1 VHFIN2 VOSC VHFOSC2 VHFOSC1 1 13 UHFOSC2 14 UHFIN1 15 UHFIN2 16 5 6 7 8 4p 2.2n 51p 1n 27p OSC OUT HVU202A 1T363A 33k 1n 33k 15p 33k 1T363A 1n 0.5p 1n 2.2n 2k 91p 1.5p 2k VHI UHF VLO 2k VHF 100k VT -4- VCC NJM2531A TERMINAL CHARACTERISTICS Typ.DC No. Symbol Voltage (V) Equivalent Circuit Function 3 1 VHFOSC1 VHF 3.0 1 VHF Oscillator 2 2 VHFOSC2 VHF 2.2 3 VOSC - 4 UHFOSC1 UHF 2.2 Oscillator Power Supply 3 5 UHF Oscillator 4 5 UHFOSC2 UHF 3.0 6 GND - 7 OSCOUT 3.5 GND OSC Output 7 UHF/VHF Select Switch UHF at Vcc VHF at GND 8 8 U/V SW - 9 IFOUT 2.2 9 IF Output -5- NJM2531A No. Symbol Typ.DC Voltage (V) 10 VCC - 11 MIXOUT1 - Equivalent Circuit Function Power Supply Except for Oscillator 12 11 Mixer Output 12 13 MIXOUT2 - VHFIN1 VHF 2.5 14 VHFIN2 VHF 2.5 15 UHFIN1 UHF 2.5 16 -6- UHFIN2 UHF 2.5 13 14 RF Input for VHF band 15 16 RF Input for UHF band NJM2531A TYPICAL CHARACTERISTICS Vcc=5V,fIF=45.75MHz,TA=25°C R F IN P U T L EV E L v sIF O U TP U T L E V EL C O N V E R TION G AIN v sR F F R EQ U E NC Y 15 60 10 IF OUTP UT LE V EL [dBm] CONVE RTION GAIN [dB] 50 40 UH F VHF _Lo w V HF _Hi 30 20 10 5 0 -5 -1 0 -1 5 fRF= 80 1.25M H z (UHF) 0 0 20 0 40 0 60 0 800 -2 0 -6 0 -5 0 -4 0 RF F R E QU E N CY [M Hz ] 1 % XM v sR F F R E Q U E N CY f u nd = fR F + 1M H z ,p u n d= p R F 90 -3 0 -2 0 -1 0 R F IN P UT L E V EL [dB m ] 0 10 20 NO ISE F IG U R E v sR F F R EQ U E N C Y 20 18 85 16 V HF _Low 80 VHF _Hi V HF _Hi 14 75 UH F 12 NF [dB] 1 % X M [d BuV ] V HF _Low UHF 70 10 8 65 6 60 4 55 50 2 0 200 400 600 R F F R E Q U E N C Y [M H z ] 800 0 0 20 0 40 0 600 800 R F F R E Q U E NC Y [M H z ] -7- MEMO [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.