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 ■ ■ ■ ■ 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 ■ ■ ■ ■ ■ 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 Oscillation mode Recommended oscillator frequency [MHz]1 CF5034AA fO 250 to 350 CF5034AB fO/2 Fundamental CF5034BA fO 160 to 250 CF5034BB fO/2 CF5034DA – CF5034DB 80 to 350 (external capacitors required) CF5034LA 125 to 160 CF5034LB CF5034MA Output frequency fO/2 fO fO/2 Fundamental or 3rd overtone 80 to 125 CF5034MB fO 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 Package CF5034××−1 Chip form NIPPON PRECISION CIRCUITS INC.—1 CF5034 series PAD LAYOUT (Unit: µm) OUTN 9 TEST VCC2 OE 8 7 6 5 (1160,1310) DA5034 OUT Y 1 2 (0,0) VCC 3 4 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. Name I/O X Y 1 VCC – Supply pin 146 145 2 XIN I Oscillator input pin 536 145 3 XOUT O Oscillator output pin 809 145 4 GND – Ground pin 1015 145 I Output enable pin. Outputs are high impedance when LOW (oscillator stopped). Power-saving pull-up resistor built-in. 979 1165 5 OE Function 6 TEST I IC test pin. Leave open circuit for normal operation. 839 1165 7 VCC2 – Output buffer supply pin 690 1165 8 OUTN O Output pin (complementary) 449 1165 9 OUT O Output pin (true) 216 1165 BLOCK DIAGRAM OE VCC2 VCC OUT Rf 1/2 ECL OUTN XIN CXIN CXOUT GND XOUT NIPPON PRECISION CIRCUITS INC.—2 CF5034 series ABSOLUTE MAXIMUM RATINGS Parameter Symbol Conditions Rating Unit Supply voltage range VCC −0.5 to 7.0 V Input voltage range VIN GND − 0.5 to VCC + 0.5 V Output voltage range VOUT GND − 0.5 to VCC + 0.5 V Storage temperature range TSTG −65 to 150 °C RECOMMENDED OPERATING CONDITIONS Rating Parameter Symbol Conditions Unit Min Typ Max Operating supply voltage VCC 3.0 3.3 3.6 V Input voltage VIN GND – VCC V TOPR −40 25 85 °C – 50 – Ω 40 – 350 MHz Operating temperature Output load RL Output frequency fOUT Terminated to VCC − 2V ELECTRICAL CHARACTERISTICS DC Characteristics Recommended operating conditions unless otherwise noted. Rating Parameter Symbol Conditions Unit Min Typ Max Current consumption 1 IEE1 Measurement cct. 1, OE = open – 55 88 mA Current consumption 2 IEE2 Measurement cct. 1, OE = LOW – – 30 µA 2.350 2.420 V VOH Ta = 0 to 85°C 2.275 OUT/OUTN HIGH-level output voltage Ta = – 40°C 2.215 2.295 2.420 V Ta = 0 to 85°C 1.490 1.600 1.680 V Ta = – 40°C 1.470 1.605 1.745 V – – 10 µA OUT/OUTN LOW-level output voltage VOL Measurement cct. 4, VCC = 3.3V, OE = open OUT/OUTN output leakage current IZ Measurement cct. 2, OE = LOW OE HIGH-level input voltage VIH Measurement cct. 1 0.7VCC – – V OE LOW-level input voltage VIL Measurement cct. 1 – – 0.3VCC V OE LOW-level input current 1 IIL1 Measurement cct. 2, VIL = 0V −2 – −20 µA OE LOW-level input current 2 IIL2 Measurement cct. 2, VIL = 0.7VCC −20 – −200 µA NIPPON PRECISION CIRCUITS INC.—3 CF5034 series AC Characteristics Recommended operating conditions unless otherwise noted. Rating Parameter Symbol Conditions Unit Min Typ Max Output duty cycle 1 Duty 1 Measurement cct. 3, measured at output crossing point, Ta = 25°C, VCC = 3.3V 45 – 55 % Output duty cycle 2 Duty 2 Measurement cct. 3, measured at 50% output swing, Ta = 25°C, VCC = 3.3V 45 – 55 % Measurement cct. 1, Ta = TOPR, f = 350MHz, Peak to peak of output waveform 0.4 – – V Output swing1 VOpp Output rise time tr Measurement cct. 3, 20 to 80% output swing – 0.5 1 ns Output fall time tf Measurement cct. 3, 80 to 20% output swing – 0.5 1 ns Output enable time2 tOE Measurement cct. 1, Ta = 25°C – – 200 ns Output disable time2 tOD Measurement cct. 1, Ta = 25°C – – 200 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 VOpp tf OUTN VOH 80% 20% OUT VDD VOL VDD – 2V tW tPER DUTY = tW/tPER 100 tOD VSS tOE OE VDD VIH VIL OE input waveform tr = tf 10ns VSS Timing chart NIPPON PRECISION CIRCUITS INC.—4 CF5034 series FUNCTIONAL DESCRIPTION Standby Function Power-saving Pull-up Resistor When OE goes LOW, the oscillator stops and the output pins (OUT, OUTN) become high impedance. 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. OE OUT, OUTN Oscillator HIGH (or open) Either fO or fO/2 Normal operation LOW High impedance Stopped MEASUREMENT CIRCUITS Measurement Circuit 1 Measurement Circuit 3 A IEE1, IEE2 VCC C1 Signal Generator VCC2 VCC R1 XIN VCC2 R1 OUT XIN OUT R1 VT OE OUTN R1 VT OUTN XOUT R1 GND GND VOE R1: 50Ω, VT: VCC − 2V XIN input signal 500mVp-p, sine wave C1: 0.001µF R1: 50Ω VT: VCC − 2V VOE: VCC, VIH, VIL Measurement Circuit 4 Measurement Circuit 2 VCC VCC2 R1 XIN VCC A 0.7VCC OE OUT VT VCC2 OUTN XOUT OUT A OUTN A R1 TEST GND GND 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: [email protected] NC0116CE 2003.04 NIPPON PRECISION CIRCUITS INC.—6