CF5732 Series Analog clock CMOS IC NIPPON PRECISION CIRCUITS INC. OVERVIEW FEATURES The CF5732 series are analog clock driver ICs using 32kHz reference frequency of crystal oscillator. Some versions in accordance with the combinations of each motor drive and alarm output characteristics can provide a wide range of applications for various clock specifications. The CF5732 series incorporates 4 types of pace adjustment capacitors, which enables to adjust the pace with bonding options. - Built-in oscillator circuits(32.678 kHz) On-chip feed back resistors (Rf, Rd) Crystal oscillator capacitors (CD, CG) Additional 4 capacitors for pace adjustment. - Debounce circuit (AI terminal) - Single 1.5 V supply - Available as a die SERIES LINEUP CF5732EA CF5732FA CF5732GA CF5732HA CF5732JA CF5732KA Built-in XT terminal CG(pF) 11.5 11.5 10 11.5 11.5 11.5 Capacitor XT terminal CD(pF) 29 29 25 29 29 29 C1(pF) 6 6 3 6 6 6 C2(pF) 7 7 4 7 7 7 C4(pF) 8 8 5 8 8 8 C4(pF) 9 9 6 9 9 9 Motor Active Level - H L H H H Output Hand Drive Cycle(sec) 0.125 1 1 1 1 1 Pulse Width(msec) DUTY50% 31.25 31.25 15.6 23.4375 46.875 Alarm Active Level L L L L L L Input Test Function Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD) Yes(1/2VDD) Alarm Terminal AO AO AO AO AO AO AO AO AO AO AO AO Output Active Level H L(*1) H L(*2) H L(*1) H L(*2) H L(*2) H L(*2) Fundmental Frequency(Hz) 2048 2048 2048 2048 2048 2048 2048 2048 2048 2048 2048 2048 Modulation Frequency(Hz) 8+1 8+1 8+1 8+1 8+1 8+1 16+1 16+1 8+1 8+1 8+1 8+1 IOH MIN(mA) −1.0 −1.0 −1.0 −1.0 −1.0 −1.0 IOL MIN(mA) 1.0 1.0 1.0 1.0 1.0 1.0 (*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive) (*2) AO is complete reverse phase of AO. (even output is inactive.) NIPPON PRECISION CIRCUITS-1 CF5732 Series PIN DESCRIPTION PINOUT 4 3 2 1 VDD Power supply pin VSS Ground 13 TC Test pin 12 AI Alarm Input AO Alarm signal Output AO Alarm signal Inverting Output 14 5 6 11 Y (0, 0) 7 8 9 Description Name OUT2 Motor drive output 2 OUT1 Motor drive output 1 10 X Chip size: 1.49×1.40mm Chip thickness: 300±30µm Pad size: 100×100µm Reverse side of chip is VDD. XT Crystal oscillator connection XT Crystal oscillator connection C1 Supplementary internal capacitor connection 1 C2 Supplementary internal capacitor connection 2 C3 Supplementary internal capacitor connection 3 C4 Supplementary internal capacitor connection 4 (Unit: µm) No Name X Y No Name X Y 1 VDD 1023 1248 8 OUT1 340 151 2 VSS 817 1248 9 XT 567 151 3 TC 553 1248 10 XT 1101 151 4 AI 214 1248 11 C1 1305 382 5 AO 151 943 12 C2 1305 682 6 AO 151 429 13 C3 1305 880 7 OUT2 151 151 14 C4 1305 1105 BLOCK DIAGRAM VSS VDD CG XT 4 Stage Divider 13 Stage Divider CD XT TC Alarm Input AI C1 C2 C3 Alarm Test C4 Alarm Output Control AO AO Mortor Output Control OUT1 OUT2 NIPPON PRECISION CIRCUITS-2 CF5732 Series ABSOLUTE MAXIMUM RATINGS Condition (VSS= 0V) Unit Parameter Symbol Rating Supply Voltage VDD - VSS −0.3 to +5.0 V Input Voltage VIN VSS ≤ VIN ≤ VDD V Operating Temperature TOPR −30 to +70 °C Storage Temperature TSTG −40 to +125 °C ELECTRICAL CHARACTERISTICS (Ta= 25°C, VDD= 1.5V, VSS= 0V, f0= 32.768kHz unless otherwise noted) Rating Parameter Symbol Condition MIN TYP MAX Unit 1.1 1.5 2.0 V 1.0 3.0 µA Supply Voltage VDD Supply Current IDD Motor Output Current IMOT VDD= 1.2V, RL= 200Ω 4.0 mA Alarm Output Current IOH AO, AO pin, VOH= 0.75V −1.0 mA IOL AO, AO pin, VOL= 0.75V 1.0 Alarm Input Voltage VIH AI pin VDD−0.2 VIL AI pin VSS Alarm Input Center Voltage VIM AI pin No Load(*1) Input Resistance RIN AI pin ∆f/f VDD= 1.1V to 2.0V Internal Capacitance CG CD (*3) V VSS+0.2 V 1/2VDD Oscillator Stability (*2) mA VDD 5 V 15 50 kΩ 0.5 1 PPM/0.1V GA 10 pF others 11.5 pF GA 25 pF others 29 pF (*1) All terminals except for the supply and the crystal oscillators are open. (*2) CG is the incorporated capacitance between VDD and XT. (*3) CD is the incorporated capacitance between VDD and XT. NIPPON PRECISION CIRCUITS-3 CF5732 Series FUNCTIONAL DESCRIPTION Alarm input/output 1/2V DD (*3) AI AO fCY fPW AO (*1) AO (*2) (*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive): CF5732EA, GA (*2) AO is complete reverse phase of AO. (even output is inactive.): CF5732FA, HA, JA, KA (*3) When AI is held at 1/2 VDD, the alarm reference, frequency is output at AO and AO. Input Debouncing Circuit Setting bouncing delay time prevents the circuit from the erroneous operation by AI input bouncing (chattering.) ton ≤ 31.25 msec : The alarm input is ignored ton ≥ 62.5 msec : The alarm input is accepted AI (Active L) tCH tON NIPPON PRECISION CIRCUITS-4 CF5732 Series Motor Drive Outputs Step needle movement CF5732FA, GA, HA, JA, KA tPW OUT1 tPW OUT2 tCY tCY 1sec 1sec Continuos needle movement CF5732EA OUT1 tCY 125msec OUT2 tCY 125msec NIPPON PRECISION CIRCUITS-5 CF5732 Series NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. NIPPON PRECISION CIRCUITS INC. 4-3, 2-chome Fukuzumi, Koto-ku Tokyo, 135 -8430, JAPAN Telephon: 03-3642-6661 Facsimile: 03-3642-6698 NC9121BE 1996 3 NIPPON PRECISION CIRCUITS-6