CF5036 series 2.5V LVPECL Output Oscillator ICs OVERVIEW The CF5036 series are 2.5V operation, differential PECL output oscillator ICs. They support 50MHz to 250MHz 3rd overtone oscillation and 50MHz to 700MHz fundamental oscillation. The devices are fabricated using a proprietary BiCMOS process, enabling a high-frequency oscillator circuit and differential LVPECL output buffer to be incorporated on a single chip. The CF5036 series can be used to construct high-frequency PECL output oscillators. FEATURES ■ ■ ■ ■ ■ 2.375 to 3.6V operating supply voltage range Operating frequency range (varies with version) • 50MHz to 700MHz fundamental oscillation • 50MHz to 250MHz 3rd overtone oscillation – 40 to 85°C operating temperature range Differential LVPECL output 50Ω output load (terminated to VCC – 2V) ■ ■ ■ ■ Standby function • Outputs are high impedance when OE is LOW. (oscillator stops) Power-saving pull-up resistor built-in (pin OE) BiCMOS process Chip form (CF5036××) SERIES CONFIGURATION Version Oscillation mode CF5036G1 50 to 80 CF5036G2 CF5036A1 CF5036A2 CF5036B1 Fundamental or 3rd overtone CF5036B2 CF5036C1 CF5036D1 Fundamental CF5036F1 (CF5036V1) (CF5036W1) 400 to 600 600 to 700 (CF5036F2) (CF5036V2) 100 to 180 250 to 400 CF5036D2 CF5036E1 80 to 120 150 to 250 CF5036C2 (CF5036E2) Recommended operating frequency range*1 [MHz] Oscillator constants determined by external components (Rf, CXIN, CXOUT) (CF5036W2) 80 to 400 400 to 700 Output frequency fO fO/2 fO fO/2 fO fO/2 fO fO/2 fO fO/2 fO fO/2 fO fO/2 fO fO/2 fO fO/2 *1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated. Note. These versions in parentheses ( ) are under development. Please ask our Sales & Marketing section for further detail. ORDERING INFORMATION Device Package CF5036××–1 Chip form SEIKO NPC CORPORATION —1 CF5036 series PAD LAYOUT (Unit: µm) OUT OUTN VCC2 OE 8 Y TEST 7 6 2 3 (1100,1300) 5 9 DB5036 1 (0,0) VCC 4 XIN XOUT GND X Chip size: 1.10 × 1.30mm Chip thickness: 300 ± 30µm PAD size: 150µm × 100µm (VCC, OUT, OUTN pins) 100µm × 100µm (excluding VCC, OUT, OUTN pins) Chip base: GND potential Note: The TEST pin is not used during normal operation. PIN DESCRIPTION and PAD DIMENSIONS Pad dimensions [µm] Pad No. Name I/O Function X Y 1 VCC – (+) supply pin 160 130 2 XIN I Oscillator input pin 511 130 3 XOUT O Oscillator output pin 740 130 4 GND – (–) ground pin 965 130 5 OE I Output enable pin. Outputs are high impedance when LOW (oscillator stopped). Power-saving pull-up resistor built-in. 896 1170 6 VCC2 – (+) output buffer supply pin 756 1170 7 OUTN O Output pin (complementary) 523 1170 8 OUT O Output pin (true) 244 1170 9 TEST I IC test pin. Leave open circuit for normal operation. 136 678 SEIKO NPC CORPORATION —2 CF5036 series BLOCK DIAGRAM VCC VCC2 XIN OUT Colpitts OSC 1/2 PECL OUTN XOUT GND OE OSCILLATOR CIRCUIT CONSTANT The CF5036 series oscillator setting varies with device version to optimize characteristics over the recommended operating frequency range. Version Built-in capacitance*1 *2[pF] Oscillation mode CF5036G× CF5036A× CF5036B× Fundamental or 3rd overtone CF5036C× CF5036D× Recommended operating frequency range*3 [MHz] CXIN CXOUT 16 16 50 to 80 12 12 80 to 120 8 8 100 to 180 6 6 150 to 250 5 5 250 to 400 Fundamental 5 5 400 to 600 CF5036F× 4 4 600 to 700 CF5036V× Setting by external components (C0 cancel is not built-in.) (4) (4) 80 to 400 (4) (4) 400 to 700 CF5036E× CF5036W× *1. The oscillator internal capacitance values includes parasitic capacitance. *2. Values in parentheses ( ) are provisional only. *3. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated. Oscillator Equivalent Circuit C0 cancel CXIN Rf XIN RPD1 CXOUT XOUT Oscillator block equivalent circuit The CF5036 series oscillator circuit has a C0 cancel circuit built-in to improve the oscillator margin. If power is applied when there is an open circuit between XIN and XOUT, self oscillation may occur, which is not abnormal. Users should confirm that the oscillator operates normally when a crystal unit is connected. SEIKO NPC CORPORATION —3 CF5036 series SPECIFICATIONS Absolute Maximum Ratings Parameter Symbol Conditions Rating Unit Supply voltage range VCC −0.5 to +5.0 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 Chip form Recommended Operating Conditions Rating Parameter Symbol Conditions Unit Min Typ Max Operating supply voltage VCC 2.375 – 3.6 V Input voltage VIN GND – VCC V TOPR −40 +25 +85 °C 49.5 50 50.5 Ω 25 – 700 MHz Operating temperature Output load Output frequency RL fOUT Terminated to VCC − 2V SEIKO NPC CORPORATION —4 CF5036 series Electrical Characteristics 3.3V operation VCC = 3.0 to 3.6V, GND = 0V, Ta = −40 to +85°C unless otherwise noted. Rating Parameter Symbol Conditions Typ Max 5036G×, A×, B×, C×, D× – 55 88 mA 5036E×, F× – 64 98 mA – – 30 µA Ta = 0 to 85°C 2.275 2.350 2.420 V 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 IEE1 Measurement cct. 1, OE = open Current consumption 2 IEE2 Measurement cct. 1, OE = LOW HIGH-level output voltage VOH Measurement cct. 2, VCC = 3.3V, OE = open, OUT, OUTN pins Current consumption 1 LOW-level output voltage VOL Unit Min Output leakage current IZ Measurement cct. 3, OE = LOW, OUT, OUTN pins HIGH-level input voltage VIH Measurement cct. 1, OE pin 0.7VCC – – V LOW-level input voltage VIL Measurement cct. 1, OE pin – – 0.3VCC V LOW-level input current 1 IIL1 Measurement cct. 1, VIL = 0V, OE pin −2 – −20 µA LOW-level input current 2 IIL2 Measurement cct. 1, VIL = 0.7VCC, OE pin −20 – −200 µA Measurement cct. 3, XIN pin 12 24 48 kΩ Pull-down resistance 1 RPD1 2.5V operation VCC = 2.375 to 2.625V, GND = 0V, Ta = −40 to +85°C unless otherwise noted. Rating Parameter Symbol Conditions Typ Max 5036G×, A×, B×, C×, D× – 55 88 mA 5036E×, F× – 64 98 mA – – 30 µA Ta = 0 to 85°C 1.475 1.550 1.760 V Ta = –40°C 1.415 1.495 1.620 V Ta = 0 to 85°C 0.690 0.800 1.095 V Ta = –40°C 0.670 0.805 1.195 V – – 10 µA IEE1 Measurement cct. 1, OE = open Current consumption 2 IEE2 Measurement cct. 1, OE = LOW HIGH-level output voltage VOH Measurement cct. 2, VCC = 2.5V, OE = open, OUT, OUTN pins Current consumption 1 LOW-level output voltage VOL Unit Min Output leakage current IZ Measurement cct. 3, OE = LOW, OUT, OUTN pins HIGH-level input voltage VIH Measurement cct. 1, OE pin 0.7VCC – – V LOW-level input voltage VIL Measurement cct. 1, OE pin – – 0.3VCC V LOW-level input current 1 IIL1 Measurement cct. 1, VIL = 0V, OE pin −2 – −20 µA LOW-level input current 2 IIL2 Measurement cct. 1, VIL = 0.7VCC, OE pin −10 – −150 µA Measurement cct. 3, XIN pin 12 24 48 kΩ Pull-down resistance 1 RPD1 SEIKO NPC CORPORATION —5 CF5036 series Switching Characteristics 3.3V operation VCC = 3.0 to 3.6V, GND = 0V, Ta = −40 to +85°C unless otherwise noted. Rating Parameter Output duty cycle 1 Output duty cycle 2 Output swing*1 Symbol Duty1 Duty2 VOpp Conditions Unit Min Typ Max Measurement cct. 4, measured at output crossing point, Ta = 25°C, VCC = 3.3V f < 350MHz 45 – 55 % f ≥ 350MHz 40 – 60 % Measurement cct. 4, measured at 50% output swing, Ta = 25°C, VCC = 3.3V f < 350MHz 45 – 55 % f ≥ 350MHz 40 – 60 % 5036G×: f = 80MHz 0.4 – – V 5036A×: f = 120MHz 0.4 – – V 5036B×: f = 180MHz 0.4 – – V 5036C×: f = 250MHz 0.4 – – V 5036D×: f = 400MHz 0.4 – – V 5036E×: f = 600MHz 0.4 – – V 5036F×: f = 700MHz 0.4 – – V Measurement cct. 4, Ta = TOPR, Peak to peak of single output waveform Output rise time tr Measurement cct. 4, 20 to 80% output swing – 0.3 0.7 ns Output fall time tf Measurement cct. 4, 80 to 20% output swing – 0.3 0.7 ns Output enable time*2 tOE Measurement cct. 1, Ta = 25°C – – 2 ms Output disable time 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. SEIKO NPC CORPORATION —6 CF5036 series 2.5V operation VCC = 2.375 to 2.625V, GND = 0V, Ta = −40 to +85°C unless otherwise noted. Rating Parameter Symbol Output duty cycle 1 Duty1 Output duty cycle 2 Duty2 Output swing*1 VOpp Conditions Unit Min Typ Max Measurement cct. 4, measured at output crossing point, Ta = 25°C, VCC = 2.5V f < 350MHz 45 – 55 % f ≥ 350MHz 40 – 60 % Measurement cct. 4, measured at 50% output swing, Ta = 25°C, VCC = 2.5V f < 250MHz 45 – 55 % f ≥ 250MHz 40 – 60 % 5036G×: f = 80MHz 0.2 – – V 5036A×: f = 120MHz 0.2 – – V 5036B×: f = 180MHz 0.2 – – V 5036C×: f = 250MHz 0.2 – – V 5036D×: f = 400MHz 0.2 – – V 5036E×: f = 600MHz 0.2 – – V 5036F×: f = 700MHz 0.2 – – V Measurement cct. 4, Ta = TOPR, Peak to peak of single output waveform Output rise time tr Measurement cct. 4, 20 to 80% output swing – 0.3 0.7 ns Output fall time tf Measurement cct. 4, 80 to 20% output swing – 0.3 0.7 ns Output enable time*2 tOE Measurement cct. 1, Ta = 25°C – – 2 ms Output disable time 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. tPER tW OUTN OUT 80% 20% tr tf 20% VOpp Hi-Z tOD OE VIH tOE VIL OE input waveform tr = tf 10ns DUTY1 = 100tW/tPER (%) @ crossing point DUTY2 = 100tW/tPER (%) @ 50% waveform Timing chart SEIKO NPC CORPORATION —7 CF5036 series FUNCTIONAL DESCRIPTION Standby Function When OE goes LOW, the oscillator stops and the output pins (OUT, OUTN) become high impedance. OE OUT, OUTN Oscillator HIGH (or open) Either fO or fO/2 Normal operation LOW High impedance Stopped Power-saving Pull-up Resistor The OE pin pull-up resistance changes in response to the input level (HIGH or LOW). When OE is tied LOW (standby state), the pull-up resistance becomes large, reducing the current consumed by the resistance. When OE is open circuit, the pull-up resistance becomes small, decreasing the susceptibility to the effects of external noise. SEIKO NPC CORPORATION —8 CF5036 series MEASUREMENT CIRCUITS Measurement Circuit 1 Measurement Circuit 3 A IEE1, IEE2 VCC A 2V VCC2 VCC OUT IPD1 Test point VCC2 OUT XIN Signal Generator R1 IZ VT OE OUTN R1 XOUT OUTN A RPD1=VCC/IPD1 R1 C1 IZ OE Test point A GND GND,TEST IIL1, IIL2 A VIH,VIL Measurement Circuit 4 500mVp-p, sine wave C1: 0.01µF R1: 49.9Ω Note. Connect 0.01µF and approximately 10µF bypass capacitors between supply (VCC, VCC2) and GND. Note that the 0.01µF capacitor should have circuit wiring as short as possible. VCC XIN 2V VCC2 OUT R1 VT Measurement Circuit 2 XOUT OE VCC R1 OUTN GND Duty1,Duty2,VOpp,tr,tf 2V VCC2 OUT R1: 49.9Ω Note. Connect 0.01µF and approximately 10µF bypass capacitors between supply (VCC, VCC2) and GND. Note that the 0.01µF capacitor should have circuit wiring as short as possible. R1 VT XIN R1 OUTN GND,TEST VOH,VOL R1: 49.9Ω XIN = HIGH: OUT = HIGH XIN = LOW : OUT = LOW SEIKO NPC CORPORATION —9 CF5036 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 SEIKO NPC CORPORATION (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. SEIKO NPC CORPORATION 15-6, Nihombashi-kabutocho, Chuo-ku, Tokyo 103-0026, Japan Telephone: +81-3-6667-6601 Facsimile: +81-3-6667-6611 http://www.npc.co.jp/ Email: [email protected] NC0308FE 2006.04 SEIKO NPC CORPORATION —10