UNISONIC TECHNOLOGIES CO., LTD MC3361BP LINEAR INTEGRATED CIRCUIT LOW VOLTAGE/POWER NARROW BAND FM IF DESCRIPTION The UTC MC3361BP is designed for use in FM dual conversion communication. It contains a complete narrow band FM demodulation system operable to less than 2.5V supply voltage. This low-power narrow-band FM IF system provides the second converter, second IF, demodulator. Filter Amp and squelch circuitry for communications and scanning receivers. FEATURES *Low power consumption (4.0mA typ. at Vcc=4.0V) *Excellent input sensitivity (-3dB limiting, 2.0μVrms typ.) *Minimum number of external components required. *Operating Voltage: 2.5~7.0V APPLICATIONS *Cordless phone (for home use) *FM dual conversion communications equipment ORDERING INFORMATION Normal MC3361BP-D16-T MC3361BP-N16-R MC3361BP-N16-T MC3361BP-S16-R MC3361BP-S16-T Order Number Lead Free Plating MC3361BPL-D16-T MC3361BPL-N16-R MC3361BPL-N16-T MC3361BPL-S16-R MC3361BPL-S16-T Halogen Free MC3361BPG-D16-T MC3361BPG-N16-R MC3361BPG-N16-T MC3361BPG-S16-R MC3361BPG-S16-T www.unisonic.com.tw Copyright © 2010 Unisonic Technologies Co., Ltd Package Packing DIP-16 TSSOP-16 TSSOP-16 SOP-16 SOP-16 Tube Tape Reel Tube Tape Reel Tube 1 of 5 QW-R108-010.D MC3361BP LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R108-010.D MC3361BP LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM 1 Local OSC 2 16 15 14 1.8k 13 3 4 Squelch Trigger With Hysteresis 5 12 1.8k 11 6 IF Amp - 7 10 + Qual Detector AF Amp 9 8 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 5 QW-R108-010.D MC3361BP LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25°C) PARAMETER Max. Supply Voltage Supply Voltage Range Detector Input voltage RF Input Voltage (Vcc≧4.0V) SYMBOL RATING UNIT Vcc(MAX) 10 V Vcc 2.5 to 7.0 V VI(DET) 1.0 Vp-p VI(RF) 1.0 Vrms Mute Function VMUTE -0.5 ~ + 5.0 Vpeak Operating Temperature TOPR -20 ~ +70 °C Storage Temperature TSTG -65 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (Vcc=4.0V, fo=10.7MHz, Δf=±3KHz, fMOD=1KHz, Ta=25°C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN Squelch OFF (V12=2V) Operating Current Icc Squelch ON (V12=GND) Input Limiting Voltage VI(LIMIT) -3.0dB limiting Detector Output Voltage VO(DET) Detector Output Impedance ZO(DET) Audio Output Voltage VO VIN=10mV 100 Filter Gain GV f=10KHz,VIN=5mV 40 Filter Output DC Voltage VO(DC) Trigger Hysteresis of Filter VTH Mute Switch-ON Resistance RON(MUTE) Mute “Low” Mute Switch-OFF Resistance ROFF(MUTE) Mute “High” Scan Control “Low” Output VL(SCAN) Mute OFF (V12=2V) Scan Control “High” Output VH(SCAN) Mute ON (V12=GND) 3.0 Mixer Conversion Gain GV(MIXER) Mixer Input Resistance RI(MIXER) Mixer Input Capacitance CI(MIXER) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP 4.0 6.0 2.0 2.0 400 160 48 1.5 50 10 10 MAX 0.5 24 3.3 2.2 UNIT mA mA μV Vdc Ω mVrms dB Vdc mV Ω MΩ Vdc Vdc dB KΩ pF 4 of 5 QW-R108-010.D MC3361BP APPLICATION CIRCUIT AUDIO VOLUME 510 120K MURATA CFU 455D LINEAR INTEGRATED CIRCUIT In the above typical application, the audio signal is recovered using a conventional quadrature FM detector. The absence of an input signal is indicated by the presence of noise above the desired audio frequencies. This “noise band: is monitored by an active filter and a detector. A squelch trigger circuit indicates the presence of noise (or a tone) by an output which can be used to control scanning. At the same time, an internal switch is operated which can be used to mute the audio. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R108-010.D