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| R EM MICROELECTRONIC - MARIN SA H1344 CMOS Circuit for Analog Quartz Clocks with Bipolar Stepping Motor Drive Description The H 1344 is a low power 32Khz analog clock integrated circuit designed in HCMOS technology to drive a bipolar stepping motor. A set of capacitors is provided on chip to be connected, in any combination, to the two oscillator terminals, with a maximum total capacitance of 48pF. Both the motor pulse period and the motor pulse width are maskprogrammable. See page 6 for already available options. Features ! ! ! ! ! ! ! ! ! ! ! 32kHz quartz oscillator Integrated capacitors, mask selectable Single battery operation 0.7 A typical current consumption Low resistance outputs for bipolar stepping motor Mask options for pad designation, motor period and pulse width, alarm frequency, modulation and duty cycle Alarm output function compatible with either NPN or PNP-driver transistors Alarm input function 1024Hz output on ALIN pad for oscillator frequency verification Fast test function ESD protected terminals Applications ! Analog clocks Functional Diagram Pin Assignment VDD 1 2 3 4 8 7 6 5 1.5V + C TR 1 2 3 4 Motor M H1344 V40 V41 V47 V143 OSCIN OSCOUT ALARMOUT MOT1 VSS MOT2 8 H1344 V40 V41 V47 ALARMIN 7 6 5 VDD VSS MOT2 Fig. 1 1 2 3 4 8 Alarm Output OSCOUT OSCIN ALARMOUT MOT1 H1344 V38 7 6 5 ALARMIN Fig. 2 Copyright (c) 2004, EM Microelectronic-Marin SA 1 www.emmicroelectronic.com R H1344 Absolute Maximum Ratings Parameter Supply voltage range Input voltage Storage temperature Symbol VDD -VSS VIN TSTOR Min. -0.3 VSS -55 Max. +5 VDD +125 Units V V C Recommended Operating Conditions Parameter Ambient temperature Quartz frequency Quartz series resistance Motor coil resistance Positive supply Negative supply Symbol T FQ RQ RM VDD VSS Value 25 32768 30 200 1.55 0 Units C Hz k V V Table 1 Stresses beyond these listed maximum ratings may cause permanent damage to the device. Exposure to conditions beyond specified operating conditions may affect device reliability or cause malfunction. Table 2 Operating Conditions Parameter Operating temperature Quartz series resistance Trimmer capacitance Symbol TOPR CTR Min. -20 1.5 Typ. 30 Max. +70 50 30 Units C k pF Handing Procedures This device contains circuitry to protect the terminals against damage due to high static voltages or electrical fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this circuit. Table 3 Electrical and Switching Characteristics at recommended operating conditions (valid unless otherwise specified) Parameter Supply voltage Supply current Motor Output Current into load Pulse period Pulse width Alarm Output Frequency Modulation Cycle time Pulse duration Output current for driving NPN-transistor Output current for driving PNP-transistor Alarm Input Test In/Output Alarm input delay Test frequency Input current (alarm) Input current Oscillator Build-up time Stability against voltage variation Output capacitance Input capacitance Symbol VDD IDD Test operating without, ALIN open VDD = 1.2V, RM=200 Min. +1.1 Typ. 0.7 Max. +1.8 2.0 Units V A mA s ms Hz Hz s s A mA mA A IM T1 tw fA fA1 t2 tP IALOUTN IALOUTN IALOUTN IALOUTN 4.0 Mask option Mask option Mask option Mask option Mask option Mask option VDD=1.2V, VOL = 0.2V VDD=1.2V, VOH = 0.7V VDD=1.2V, VOL = 0.5V VDD=1.2V, VOH = 1.0V 0.5 0.3 0.3 0.5 tALD fT IIN IIN tSTART supply COUT CIN 125 Input at VSS, VDD = 1.4V Input at VDD VDD = 1.2V 1.1VVDD1.8V 5 Mask option Mask option -1 1 1024 -5 15 570 -10 30 2 12 ms Hz A A s ppm/V pF pF !f ! VDD xf Table 4 : See "Available options" on page 6. Copyright (c) 2004, EM Microelectronic-Marin SA 2 www.emmicroelectronic.com R H1344 Timing Waveforms Motor Output Waveform VDD MOT1 VSS tw VDD MOT2 VSS T1 Fig. 3 Alarm Output Waveform 1024 Hz 2048 Hz ALIN tALD ALOUT tP T2 1 fA1 Fig. 4 Copyright (c) 2004, EM Microelectronic-Marin SA 3 www.emmicroelectronic.com R H1344 Functional Description Oscillator and Frequency Divider The quartz oscillator consists of an inverter, internal feedback resistance to bias the input and integrated capacitors. The values of the integrated capacitors are selectable by metal mask. The oscillator is designed for 32768Hz. Motor Drive Output The circuit contains two push-pull output buffers for driving bipolar stepping motors. Between two pulses, both Pchannel transistor of the other buffer are conducting. The outputs are protected against inductive voltage spikes with diodes to both supply pins. Both the motor pulse period and motor pulse width are programmable by metal mask over a wide range of values (see page 6 for available options). Alarm Output The alarm is activated by connecting ALARMIN to VSS and is deactivated by opening the connection. A metal mask option is available to program a continuous activation of the alarm output. The alarm output driver contains a push-pull output buffer to drive an external sound source by means of an external bipolar transistor. A metal mask option is available to allow the use of NPN or PNP-transistors. The tone frequency, modulation frequency, modulation frequency and cycle time (ON/OFF time) are metal mask selectable. Test Mode The ALARMIN pin fulfills three functions: a) For normal operation, the ALARMIN pin is left open. The circuit provides a square wave signal of 1024Hz, which can be used to tune the oscillator. b) If the pin is connected to VSS, the alarm signal is provided at pin 6. c) If the ALARMIN pin is connected to VDD, all output frequencies are increased by a factor of 64, the alarm modulation of fA1 = 8Hz and fA = 2kHz are suppressed. Test configuration 1.5V + C TR 1 H1344 2 V40 V41 3 V47 8 7 6 5 Alarm Output Test 4 RM Operating range of trimmer Capacitance: 1.5 pF CTR 30 pF Fig. 5 Copyright (c) 2004, EM Microelectronic-Marin SA 4 www.emmicroelectronic.com R H1344 Pad Location Diagram All dimensions in m 0 1000 VDD OSCIN 978 795 VSS OSCOUT 702 H1344 v40 v41 v47 231 MOT2 ALOUT 304 0 276 ALIN MOT1 28 0 1270 1000 0 905 192 VDD OSCOUT 978 795 VSS OSCIN 702 H1344 v05 v56 v38 231 MOT2 ALOUT 304 0 276 ALIN MOT1 28 0 1270 Chip size: 1270 x 1499 microns 50 x 59 mils Fig. 6 Copyright (c) 2004, EM Microelectronic-Marin SA 5 905 192 1499 1499 www.emmicroelectronic.com R H1344 Ordering Information Versions The versions below are considered standards. For the other delivery form, please contact EM Microelectronic-Marin S.A. Please make sure to give the complete part number when ordering. Motor Part Number Alarm Output Pulse duration (tP) Integrated Capacitance Delivery Form Stick Sawn wafer Stick Sawn wafer Stick Sawn wafer Stick Sawn wafer Stick Stick Tape & Reel Alarm Output Transistor Pulse width (tw) Modulation (fA1) Period (T1) Frequency (FA) Cycle time (T2) Version H1344V38DL8A H1344V38DLWS11 H1344V40DL8A H1344V40DLWS11 H1344V41DL8A H1344V41DLWS11 H1344V47DL8A H1344V47DLWS11 H1344V143DL8A H1344V143SO8A H1344V143SO8B V38 V40 V41 V47 2s 2s 2s 2s 46.8ms 46.8ms 23.4ms 31.24ms 2048Hz 2048Hz 2048Hz 2048Hz 8Hz 8Hz 8Hz 8Hz 4s 4s 4s 1s 1s 1s 1s 0.5s 3pF 3pF 3pF 3pF 28pF 20pF 20pF 20pF NPN NPN NPN NPN V143 *) 2s 46.8ms -- -- 4s 1s 17pF 25pF -- DIL8 Dice DIL8 Dice DIL8 Dice DIL8 Dice DIL8 8 pin SOIC 8 pin SOIC *) Supply voltage range of 1.4V - 2.8V EM Microelectronic-Marin SA cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied in an EM Microelectronic-Marin SA product. EM Microelectronic-Marin SA reserves the right to change the circuitry and specifications without notice at any time. You are strongly urged to ensure that the information given has not been superseded by a more up-to-date version. (c) EM Microelectronic-Marin SA, 12/04, Rev. C Copyright (c) 2004, EM Microelectronic-Marin SA 6 www.emmicroelectronic.com Package (CIN) (COUT) |
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