CF5034

CF5034 series 350MHz PECL-output Oscillator ICs OVERVIEW The CF5034 series are differential LVPECL output oscillator ICs. They are made using a BiCMOS process which allows high-frequency oscillator circuits and differential LVPECL output circuits to be fabricated on a single chip. Two oscillator modes are supported—350MHz maximum fundamental oscillation mode, and 80MHz to 160MHz 3rd overtone oscillation mode. The CF5034 series devices require only the connection of a crystal to realize a differential LVPECL output oscillator circuit. FEATURES I I I I 3.3 ± 0.3V operating supply voltage Oscillator frequency range • 80MHz to 350MHz fundamental oscillation mode • 80MHz to 160MHz 3rd overtone oscillation mode 40MHz to 350MHz output frequency range Differential LVPECL output I I I I I fO (oscillator frequency) or fO/2 output frequency, determined by internal connection 50 ± 5% output duty (measured at output crossing point) Standby function: outputs are high impedance when OE is LOW. Power-saving pull-up resistor built-in (pin OE) Chip form (CF5034××) SERIES LINEUP Version CF5034AA 250 to 350 CF5034AB Fundamental CF5034BA 160 to 250 CF5034BB CF5034DA – CF5034DB CF5034LA 125 to 160 CF5034LB CF5034MA CF5034MB Fundamental or 3rd overtone 80 to 125 80 to 350 (external capacitors required) Oscillation mode Recommended oscillator frequency [MHz]1 Output frequency fO fO/2 fO fO/2 fO fO/2 fO fO/2 fO fO/2 1. The recommended oscillator frequency criteria is based on the negative resistance characteristics and cutoff frequency. Note that this may change depending on the crystal characteristics, thus sufficient allowance should be made. ORDERING INFORMATION Device CF5034××−1 Package Chip form NIPPON PRECISION CIRCUITS INC.—1 CF5034 series PAD LAYOUT (Unit: µm) OUTN 8 OUT 9 TEST VCC2 OE (1160,1310) DA5034 7 6 5 Y 1 2 3 4 (0,0) VCC XIN XOUT GND X Chip size: 1.16 × 1.31mm Chip thickness: 300 ± 30µm Chip base: GND potential PAD DESCRIPTION AND DIMENSIONS Pad dimensions [µm] Pad No. 1 2 3 4 5 6 7 8 9 Name VCC XIN XOUT GND OE TEST VCC2 OUTN OUT I/O – I O – I I – O O Supply pin Oscillator input pin Oscillator output pin Ground pin Output enable pin. Outputs are high impedance when LOW (oscillator stopped). Power-saving pull-up resistor built-in. IC test pin. Leave open circuit for normal operation. Output buffer supply pin Output pin (complementary) Output pin (true) Function X 146 536 809 1015 979 839 690 449 216 Y 145 145 145 145 1165 1165 1165 1165 1165 BLOCK DIAGRAM OE VCC2 VCC Rf 1/2 ECL OUT OUTN XIN CXIN CXOUT GND XOUT NIPPON PRECISION CIRCUITS INC.—2 CF5034 series ABSOLUTE MAXIMUM RATINGS Parameter Supply voltage range Input voltage range Output voltage range Storage temperature range Symbol VCC VIN VOUT TSTG Conditions Rating −0.5 to 7.0 GND − 0.5 to VCC + 0.5 GND − 0.5 to VCC + 0.5 −65 to 150 Unit V V V °C RECOMMENDED OPERATING CONDITIONS Rating Parameter Operating supply voltage Input voltage Operating temperature Output load Output frequency Symbol VCC VIN TOPR RL fOUT Terminated to VCC − 2V Conditions Min 3.0 GND −40 – 40 Typ 3.3 – 25 50 – Max 3.6 VCC 85 – 350 V V °C Ω MHz Unit ELECTRICAL CHARACTERISTICS DC Characteristics Recommended operating conditions unless otherwise noted. Rating Parameter Current consumption 1 Current consumption 2 OUT/OUTN HIGH-level output voltage Symbol IEE1 IEE2 VOH Conditions Min Measurement cct. 1, OE = open Measurement cct. 1, OE = LOW Ta = 0 to 85°C Measurement cct. 4, VCC = 3.3V, OE = open Ta = – 40°C Ta = 0 to 85°C Ta = – 40°C Measurement cct. 2, OE = LOW Measurement cct. 1 Measurement cct. 1 Measurement cct. 2, VIL = 0V Measurement cct. 2, VIL = 0.7VCC – – 2.275 2.215 1.490 1.470 – 0.7VCC – −2 −20 Typ 55 – 2.350 2.295 1.600 1.605 – – – – – Max 88 30 2.420 2.420 1.680 1.745 10 – 0.3VCC −20 −200 mA µA V V V V µA V V µA µA Unit OUT/OUTN LOW-level output voltage OUT/OUTN output leakage current OE HIGH-level input voltage OE LOW-level input voltage OE LOW-level input current 1 OE LOW-level input current 2 VOL IZ VIH VIL IIL1 IIL2 NIPPON PRECISION CIRCUITS INC.—3 CF5034 series AC Characteristics Recommended operating conditions unless otherwise noted. Rating Parameter Symbol Conditions Min Output duty cycle 1 Duty 1 Measurement cct. 3, measured at output crossing point, Ta = 25°C, VCC = 3.3V Measurement cct. 3, measured at 50% output swing, Ta = 25°C, VCC = 3.3V Measurement cct. 1, Ta = TOPR, f = 350MHz, Peak to peak of output waveform Measurement cct. 3, 20 to 80% output swing Measurement cct. 3, 80 to 20% output swing Measurement cct. 1, Ta = 25°C Measurement cct. 1, Ta = 25°C 45 Typ – Max 55 % Unit Output duty cycle 2 Duty 2 45 – 55 % Output swing1 Output rise time Output fall time Output enable time2 Output disable time2 VOpp tr tf tOE tOD 0.4 – – – – – 0.5 0.5 – – – 1 1 200 200 V ns ns ns ns 1. The said values are measured by using the NPC standard jig. 2. The built-in oscillator stop function does not operate with normal output immediately when OE goes HIGH. Instead, normal output occurs after the oscillator startup time has elapsed. tr OUTN OUT tf 80% 20% VOpp VDD VOH VOL VDD – 2V tW tPER DUTY = tW/tPER 100 tOD OE tOE VIH VSS VDD VIL VSS OE input waveform tr = tf 10ns Timing chart NIPPON PRECISION CIRCUITS INC.—4 CF5034 series FUNCTIONAL DESCRIPTION Standby Function When OE goes LOW, the oscillator stops and the output pins (OUT, OUTN) become high impedance. OE HIGH (or open) LOW OUT, OUTN Either fO or fO/2 High impedance Oscillator Normal operation Stopped Power-saving Pull-up Resistor The OE pin pull-up resistance changes in value in response to the input level (HIGH or LOW). When OE is LOW (standby state), the pull-up resistance increases, thereby decreasing the current consumption. MEASUREMENT CIRCUITS Measurement Circuit 1 Measurement Circuit 3 A IEE1, IEE2 VCC XIN R1 VT OE OUTN R1 GND VOE XOUT OUTN R1 GND VT VCC2 R1 OUT Signal Generator C1 VCC XIN VCC2 R1 OUT XIN input signal 500mVp-p, sine wave C1: 0.001µF R1: 50Ω VT: VCC − 2V VOE: VCC, VIH, VIL R1: 50Ω, VT: VCC − 2V Measurement Circuit 4 Measurement Circuit 2 VCC XIN VCC2 R1 OUT VT XOUT OUTN R1 TEST GND VCC VCC2 OUT A A 0.7VCC OE OUTN GND A R1: 50Ω, VT: VCC − 2V XOUT = HIGH: OUT pin is fixed HIGH (VOH). OUTN pin is fixed LOW (VOL). XOUT = LOW: OUT pin is fixed LOW (VOL). OUTN pin is fixed HIGH (VOH). NIPPON PRECISION CIRCUITS INC.—5 CF5034 series Please pay your attention to the following points at time of using the products shown in this document. The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such use from NIPPON PRECISION CIRCUITS INC. (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested appropriately take steps to obtain required permissions or approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. 4-3, Fukuzumi 2-chome, Koto-ku, Tokyo 135-8430, Japan Telephone: +81-3-3642-6661 Facsimile: +81-3-3642-6698 http://www.npc.co.jp/ Email: sales@npc.co.jp NC0116CE 2003.04 NIPPON PRECISION CIRCUITS INC.—6