CF5035 series 1.8V, High-frequency Crystal Oscillator Module ICs OVERVIEW The CF5035 series are 1.8V operation, high-frequency crystal oscillator module ICs. They support 70MHz to 165MHz (1.8V) and 70MHz to 220MHz (2.5 to 3.3V) 3rd overtone oscillation and fundamental oscillation modes. The crystal oscillator circuit is a Colpitts oscillator with the necessary oscillator capacitors and feedback resistor built-in. The oscillation characteristics feature little variation with supply voltage, providing stable oscillation over a wide supply voltage range. The output circuit comprises a CMOS buffer that can operate at high frequencies and drive a 15pF capacitance load. The devices are fabricated using a proprietary BiCMOS process with the oscillator circuit and output buffer on a single chip, making them ideal as SMD-type high-frequency crystal oscillators. FEATURES ■ ■ ■ ■ ■ ■ ■ 1.6 to 3.6V operating supply voltage range Oscillation frequency range (varies with version) 1.6 to 3.6V: 70MHz to 165MHz 2.25 to 3.6V: 70MHz to 220MHz – 40 to 85°C operating temperature range Oscillation capacitors built-in Inverter amplifier feedback resistor built-in Oscillation detector function built-in Standby function • High impedance in standby mode, oscillator stops ■ ■ ■ ■ ■ ■ Low standby current • Power-saving pull-up resistor built-in CMOS output duty level 15pF output load 8mA output drive capability (VDD = 1.6V) BiCMOS process Chip form (CF5035AL×) APPLICATIONS ■ 1.8V, high-frequency crystal oscillator modules SERIES CONFIGURATION Version Operating supply voltage range [V] Recommended operating frequency range1 [MHz] CIN COUT 70 to 95 4 4 95 to 125 4 4 125 to 165 2 2 165 to 220 1 1 CF5035ALA CF5035ALB 1.6 to 3.6 CF5035ALC CF5035ALD 2.25 to 3.6 Built-in capacitance [pF] 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. ORDERING INFORMATION Device Package CF5035AL×–1 Chip form SEIKO NPC CORPORATION —1 CF5035 series PAD LAYOUT (Unit: µm) TEST Q 7 6 5 (1080,1320) DA5035 VDD Y 1 (0,0) 2 3 4 INHN XIN XOUT VSS X Chip size: 1.08 × 1.32mm Chip thickness: 300 ± 30µm PAD size: 100µm × 100µm (TEST: 80µm × 80µm) Chip base: VSS potential PIN DESCRIPTION and PAD DIMENSIONS Pad dimensions [µm] No. Name I/O Description X Y 1 INHN I Output state control input. Oscillator stops when LOW. Power-saving pull-up resistor built-in. 205 135 2 XIN I Oscillator input 461 135 3 XOUT O Oscillator output 734 135 4 VSS – (–) ground 945 135 5 Q O Output. Output frequency. High impedance in standby mode 945 1185 6 TEST I Test (leave open) 494 1195 7 VDD – (+) supply voltage 135 1185 Crystal connection pins. Crystal is connected between XIN and XOUT. BLOCK DIAGRAM VDD VSS INHN Rf CMOS Q XIN CIN COUT XOUT SEIKO NPC CORPORATION —2 CF5035 series ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating Unit −0.5 to +5.0 V Supply voltage range VDD Between VDD and VSS Input voltage range VIN Input pins VSS − 0.5 to VDD + 0.5 V VSS − 0.5 to VDD + 0.5 V 25 mA −65 to +150 °C Output voltage range VOUT Output pins Output current IOUT Q pin Storage temperature range TSTG Chip form RECOMMENDED OPERATING CONDITIONS CL ≤ 15pF Rating Parameter Supply voltage Input voltage Operating temperature Symbol VDD VIN TOPR Condition Unit min typ max 70MHz ≤ f ≤ 95MHz 5035ALA 1.6 – 3.6 V 95MHz ≤ f ≤ 125MHz 5035ALB 1.6 – 3.6 V 125MHz ≤ f ≤ 165MHz 5035ALC 1.6 – 3.6 V 165MHz ≤ f ≤ 220MHz 5035ALD 2.25 – 3.6 V Input pins VSS – VDD V Chip temperature −40 +25 +85 °C SEIKO NPC CORPORATION —3 CF5035 series ELECTRICAL CHARACTERISTICS DC Characteristics Recommended operating conditions unless otherwise noted. Rating Parameter Symbol Condition 5035ALA f = 95MHz Operating current consumption1 IDD Measurement cct 1, INHN = open or HIGH, CL = 15pF 5035ALB f = 125MHz 5035ALC f = 165MHz 5035ALD f = 220MHz Unit min typ max VDD = 1.6 to 2.0V – 11 19 mA VDD = 2.25 to 2.75V – 16 26 mA VDD = 2.75 to 3.6V – 20 33 mA VDD = 1.6 to 2.0V – 17 27 mA VDD = 2.25 to 2.75V – 23 36 mA VDD = 2.75 to 3.6V – 29 46 mA VDD = 1.6 to 2.0V – 23 37 mA VDD = 2.25 to 2.75V – 31 51 mA VDD = 2.75 to 3.6V – 39 65 mA VDD = 2.25 to 2.75V – 38 58 mA VDD = 2.75 to 3.6V – 48 73 mA – – 10 µA Standby current IST Measurement cct 1, INHN = LOW HIGH-level output voltage VOH Q: Measurement cct 3, VDD = 1.6 to 3.6V, IOH = 8mA VDD – 0.4 VDD – 0.3 – V LOW-level output voltage VOL Q: Measurement cct 3, VDD = 1.6 to 3.6V, IOL = 8mA – 0.3 0.4 V VOH = VDD – – 10 µA VOL = VSS – – 10 µA IZ Q: Measurement cct 5, INHN = LOW, VDD = 3.6V HIGH-level input voltage VIH INHN, Measurement cct 4 0.7VDD – – V LOW-level input voltage VIL INHN, Measurement cct 4 – – 0.3VDD V INHN = VSS 0.4 – 4 MΩ INHN = 0.7VDD 30 – 150 kΩ Output leakage current INHN pull-up resistance RPU1 RPU2 Measurement cct 6 1. The operating current consumption includes the CL = 15pF capacitance load charging current. SEIKO NPC CORPORATION —4 CF5035 series AC Characteristics Recommended operating conditions unless otherwise noted. Rating Parameter Symbol Output duty cycle Duty Condition Measurement cct 1, Ta = 25°C, CL = 15pF Unit min typ max VDD = 2.25 to 3.6V 45 50 55 % VDD = 1.6 to 2.25V 40 50 60 % tr1 Measurement cct 1, CL = 15pF, VDD = 2.25 to 3.6V, 0.1VDD to 0.9VDD – 1 2 ns tr2 Measurement cct 1, CL = 15pF, VDD = 1.6 to 2.25V, 0.2VDD to 0.8VDD – 1.5 2.5 ns tf1 Measurement cct 1, CL = 15pF, VDD = 2.25 to 3.6V, 0.9VDD to 0.1VDD – 1 2 ns tf2 Measurement cct 1, CL = 15pF, VDD = 1.6 to 2.25V, 0.8VDD to 0.2VDD – 1.5 2.5 ns Output enable delay time1 tOE Measurement cct 2, Ta = 25°C, CL ≤ 15pF, INHN = LOW → HIGH – – 2 ms Output disable delay time tOD Measurement cct 2, Ta = 25°C, CL ≤ 15pF, INHN = HIGH → LOW – – 200 ns Rise time Fall time 1. Oscillator stop function is built-in. When INHN goes LOW, normal output stops. When INHN goes HIGH, normal output is not resumed until after the oscillator start-up time has elapsed. Timing chart 0.9VDD 0.8VDD Q 0.9VDD 0.8VDD 0.2VDD 0.1VDD DUTY measurement voltage (0.5V DD ) 0.2VDD 0.1VDD TW DUTY= TW/ T 100 (%) T tr2 tr1 tf2 tf1 Figure 1. Output switching waveform INHN VIH VIL tOD Q tOE Hi-Z Figure 2. Output disable/enable timing chart SEIKO NPC CORPORATION —5 CF5035 series FUNCTIONAL DESCRIPTION Standby Function When INHN goes LOW, the device is in standby mode. The Q output becomes high impedance and the oscillator circuit stops. INHN Q Oscillator HIGH (or open) fO output frequency Normal operation LOW High impedance Stopped Power-saving Pull-up Resistor The INHN pin pull-up resistance changes in response to the input level (HIGH or LOW). When INHN is tied LOW, the pull-up resistance becomes large, reducing the current consumed by the resistance. When INHN is left open, the pull-up resistance becomes small, such that even if the input is affected by external noise the outputs are stable due to INHN being tied HIGH by the pull-up resistor. Oscillation Detector Function The devices also feature an oscillation detector circuit. This circuit functions to disable the outputs until the oscillator circuit starts. This prevents abnormal oscillator output at oscillator start-up when power is applied or when INHN is switched. SEIKO NPC CORPORATION —6 CF5035 series MEASUREMENT CIRCUITS Measurement cct 1 Measurement cct 4 Measurement parameter: IDD, IST, Duty, tr , tf Measurement parameter: VIH, VIL IDD IST A VDD VDD XIN XIN X'tal X'tal Q Q XOUT XOUT INHN VSS INHN VSS CL = 15pF (Including probe capacitance) IDD: Open IST: Short Note: The AC characteristics are observed using an oscilloscope on pin Q. VIH V VIL VIH: Voltage in VSS to VDD transition that changes the output state. VIL: Voltage in VDD to VSS transition that changes the output state. INHN has an oscillation stop function. Measurement cct 2 Measurement cct 5 Measurement parameter: tOE, tOD Measurement parameter: IZ VDD Signal Generator VDD VDD Q C1 A Q or VSS XOUT INHN VSS IZ INHN VSS R1 VDD or VSS XIN input signal: 1Vp-p, sine wave C1: 0.001µF R1: 50Ω Measurement cct 6 Measurement parameter: RPU1, RPU2 Measurement cct 3 VDD Measurement parameter: VOH, VOL INHN VSS VDD 50Ω Signal Generator Q 0.001µF XOUT VOH V VOL VSS 50Ω ∆V VOH VS VS adjusted such that ∆V = 50 × IOH. VS VOL 0.1µF VS VIN V A IPU RPU1 = VDD IPU (VIN = 0V) RPU2 = VDD 0.7V DD (VIN = 0.7V DD) IPU ∆V VS adjusted such that ∆V = 50 × IOL. XOUT input signal: 1Vp-p, sine wave SEIKO NPC CORPORATION —7 CF5035 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] NC0306BE 2006.04 SEIKO NPC CORPORATION —8