IMI4343 PHASE DETECTOR June 1997 CMOS LSI PLL FREQUENCY SYNTHESIZERS PRODUCT DESCRIPTION PRODUCT FEATURES The IMI4343 is a member of a family of phase lock loop synthesizer ICs from International Microcircuits. This is a phase-frequency detector intended for use with high reference frequencies. Compatible with sinewave, ECL, TTL, and CMOS input waveforms, makes the IMI4343 extremely versatile in PLL applications. The IMI4343 has a Type IV phase frequency detector which has eliminated by design the inherent dead zone which causes crossover distortion at the critical center lock point. The IMI circuitry enables consistent low noise loop designs using the simple single ended charge pump output. Differential charge pump outputs are also provided for those who require a more sophisticated differential active loop filter design. Useful input frequency > 50 MHz Low power consumption CMOS -163 dBc/Hz total phase noise floor No dead zone, by design High gain differential outputs 380 µA Current Mode Charge Pump Unambiguous PLL acquisition Zero degree phase difference at lock ECL compatible inputs when AC coupled Sinewave inputs when AC coupled TTL, CMOS inputs can be DC coupled On-chip 3rd overtone reference oscillator Small SO-8 package for SMT available 3-volt and 5-volt characterizations BLOCK DIAGRAM VDD 8 OSCout 2 7 PFD OSCin 1 1 Fin VSS 6 1 2 2 PDout PHIR 1 1 2 2 3 Phase Freq. Detector 5 PHIV 4 INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 Rev 1.1 6/9/97 Page 1 of 7 IMI4343 PHASE DETECTOR June 1997 CMOS LSI PLL FREQUENCY SYNTHESIZERS MAXIMUM RATINGS Voltage Relative to VSS: -0.3V to 7V Voltage Relative to VDD 0.3V Storage Temperature: -65ºC to 150ºC Ambient Temperature: -45ºC to 85 ºC Recommended Operating Range: 2.7V - 5.5V This device contains circuitry to protect the inputs against damage due to high static voltages or electric field; however, precautions should be taken to avoid application of any voltage higher than the maximum rated voltages to this circuit. For proper operation, Vin and Vout should be constrained to the range: VSS<(Vin or Vout)< VDD Unused inputs must always be tied to an appropriate logic voltage level (either VSS or VDD). PIN DESCRIPTIONS PIN NO. NAME DESCRIPTION 1 OSCin This input is self biased and is designed to be AC coupled for low level sinewave signals. 2 OSCout 6 Fin 4 8 3 5 7 VSS VDD PHIR PHIV Pdout Reference signal output can be used in conjunction with OSCin to form an internal crystal oscillator. This input is intended to be AC coupled. DC coupling can be used for CMOS logic level input signals. Circuit ground. Circuit positive power supply. Phase detector output. This signal goes LOW when the feedback frequency is too low. Phase detector output. This signal goes LOW when the feedback frequency is too high. Single-ended charge pump output, usually used with passive loop filters. This signal operates according to the following: æ Frequency fv>fr at the phase detector: negative pulses. æ Frequency fv<fr at the phase detector: positive pulses. æ Frequency fv = fr at the phase detector: high-impedance state. INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 Rev 1.1 6/9/97 Page 2 of 7 IMI4343 PHASE DETECTOR CMOS LSI PLL FREQUENCY SYNTHESIZERS June 1997 PLL OPERATING CHARACTERISTICS VDD = 5 VOLTS -40ºC Characteristics Dynamic Symbol Min Max 25ºC Min Typ 85ºC Max Min Max Unit Conditions Operating fin, Sine 50 50 45 MHz Frequency fosc Square 50 50 45 MHz Phase Noise Floor PDNF Pin Cin - 10 - 6 10 - 10 pF Capacitance Cout - 10 - 6 10 - 10 pF Input VIL 1 1.5 - 2.75 1.5 - 1.5 Vdc Voltages VIH 3.5 - 3.5 2.75 - 3.5 - Output VOL - 0.05 - 0.0 0.05 - 0.05 Voltages VOH 4.9 5 - 4.95 5.0 - 4.95 - Logic 2.4 - 2.0 2.8 - 1.6 - OSCout 1.2 - 1.0 1.4 - 0.8 - mA VOL = 0.40 Logic -2.4 - -2.0 -2.8 - -1.6 - mA VOH = 4.0 OSCout -1.2 - -1.0 -1.4 - -0.8 - mA VOH = 4.0 µA Vdd = 5V @ 25°C IOL Static Output Current Charge Pump Supply Currents IOH -160 Icp dBc/H z 380 Vdc IDD - 10 - 7 10 - 10 mA fosc=fin-10 MHz ISB - 150 - 40 150 - 150 µA fosc=fin=0 INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 Rev 1.1 6/9/97 Page 3 of 7 IMI4343 PHASE DETECTOR June 1997 CMOS LSI PLL FREQUENCY SYNTHESIZERS PLL OPERATING CHARACTERISTICS VDD = 3 VOLTS -40ºC Characteristics Dynamic Symbol Min Max 25ºC Min 70ºC Typ Max - Min Max Unit 50 45 MHz 50 45 Operating fin, Sine 50 Frequency fosc Sine 50 Phase Noise Floor PDNF Pin Cin - 10 - 6 10 pF Capacitance Cout - 10 - 6 10 pF Input VIL - 0.9 - 1.35 0.9 Voltages VIH 2.1 - 2.1 1.65 - Output VOL - 0.05 - 0.0 Voltages VOH 2.95 - 2.95 IOL Static Output Current Charge Pump Supply Currents IOH -155 Conditions MHz dBc/Hz - 1.5 Vdc 0.05 - 0.05 Vdc 3.0 - 2.95 - Logic 1.6 - 1.4 2.0 - OSCout 0.8 - 0.7 1.0 - mA VOL = 0.30 Logic -1.6 - -1.4 -2.0 - mA VOH = 2.4 OSCout -1.6 - -0.7 -1.0 - mA VOL = 2.4 µA Vdd = 3V @ 25°C mA fosc=fin-10 MHz µA fosc=fin=0 Icp 240 IDD - 5 - 3 5 ISB - 150 - 40 150 INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 - 5 Rev 1.1 6/9/97 Page 4 of 7 IMI4343 PHASE DETECTOR June 1997 CMOS LSI PLL FREQUENCY SYNTHESIZERS Sinewave Sensitivity vs. Frequency VDD = 3 VDC Sinewave Sensitivity vs. Frequency VDD = 5 VDC 0 0 -5 -10 -15 dBm (50 ohms) dBm (50 ohms) -5 Fin -20 OSCin -25 -30 -10 Fin -15 OSCin -20 -25 -35 -40 -30 0 10 20 30 40 50 0 10 20 MHz 30 40 50 MHz IDD vs. Frequency 20 mA 15 5 VDC 10 3 VDC 5 0 0 10 20 30 40 50 MHz Charge Pump PD Gain 1 0.5 0.75 0.4 mA/radian mV/radian Differential PD Gain 0.5 0.25 0.3 0.2 0.1 0 5 VDC 0 20 40 60 3 VDC 0 5 VDC 0 20 60 3 VDC MHz MHz INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 40 Rev 1.1 6/9/97 Page 5 of 7 IMI4343 PHASE DETECTOR June 1997 CMOS LSI PLL FREQUENCY SYNTHESIZERS CONNECTION DIAGRAM OSCin OSCout PHIR VSS 1 2 3 4 8 7 6 5 VDD Pdout Fin PHIV PHASE DETECTOR OUTPUT WAVEFORMS OSCin Fin PDout PHIR PHIV INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 Rev 1.1 6/9/97 Page 6 of 7 IMI4343 PHASE DETECTOR June 1997 CMOS LSI PLL FREQUENCY SYNTHESIZERS PACKAGE DRAWING AND DIMENSIONS 8-PIN OUTLINE DIMENSIONS C MILLIMETERS L E H a D A2 MIN NOM MAX MIN NOM MAX A - 2.03 - - 0.080 - A1 0.0020 0.009 0.0015 0.060 0.22 0.38 A2 0.090 0.092 0.111 2.29 2.34 2.39 B 0.35 .040 0.45 0.014 .016 .018 C - .20 - - .008 - D 5.15 5.25 5.35 0.205 0.207 0.210 E 5.20 5.30 5.40 0.205 0.210 0.213 0.050 BSC e A A1 e SYMBOL INCHES H 1.27 BSC 7.70 8.00 8.10 0.303 0.310 0.318 0.5 0.65 0.8 0.020 0.025 0.031 a B L SOP PACKAGE ORDERING INFORMATION Part Number Package Type IMI4343xYB 8-Pin SOP Production Flow Industrial, -45°C to +85°C Note: The “x” following the IMI Device Number denotes the device revision. The ordering part number is formed by a combination of device number, device revision, package style, and screening as shown below. Marking: Example: 4343xYB Date Code Lot # IMI4343xYB Flow B = Industrial, -45°C to +85°C Package Y = SOP Revision IMI Device Number INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST. MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571 Rev 1.1 6/9/97 Page 7 of 7