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| HT2860 6-Sound Generator Features * * * * Single power supply: 2.4V~4.5V Low standby current: 1A (Typ.) at VDD=3V Auto power-off function Six different sound sections * * * * K1 to K6 independently chosen or as a cascade control Speaker or direct piezo application 0.5Hz~1Hz LED flash output Minimal external components General Description The HT2860 is a CMOS LSI chip designed for use in sound effect products. It can generate six sections of programmable sounds. The LSI is equipped with tone circuit and control logic to generate various sounds including door bell, alarm, melodies, etc. Users can play not only sound sections (S1~S6) by triggering a single key (K1~K6), but serial sound sections by simultaneously triggering more than one key according to the key priority where K1 is the highest and K6 is the lowest. The customer's sound sample is analyzed and programmed into an internal ROM by changing a mask layer during device fabrication. The HT2860 is suitable for various toy applications. Pin Assignment OSC2 VDD KEY6 KEY5 KEY4 KEY3 KEY2 KEY1 VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 OSC3 TEST3 OSC1 OSC2 OUT OUT TEST2 PWR OSC1 TEST3 LED OSC3 VDD KEY6 KEY5 KEY4 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 OUT OUT TEST1 TEST2 PWR VSS KEY1 KEY2 KEY3 HT2860 - 16 DIP HT2860 - 18 DIP 1 11th July '97 HT2860 Pad Coordinates Pad No. 1 2 3 4 5 6 7 8 9 Unit: mil X -38.21 -38.21 Y 39.10 30.60 Pad No. 10 11 12 13 14 15 16 17 18 X 38.38 38.38 38.38 38.38 30.14 -2.68 -10.75 -18.83 -26.90 Y 6.38 18.10 29.84 39.10 39.10 39.10 39.10 39.10 39.10 -38.21 -22.44 -38.21 -39.10 -25.71 -39.10 -13.56 -39.10 10.75 22.91 38.38 -39.10 -39.10 -39.10 Chip size: 89 x 90 (mil)2 The IC substrate should be connected to VDD in the PCB layout artwork. Block Diagram 2 11th July '97 HT2860 Pad Description Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Pad Name LED OSC3 VDD KEY6 KEY5 KEY4 KEY3 KEY2 KEY1 VSS PWR TEST2 TEST1 OUT OUT OSC2 OSC1 TEST3 I/O O O -- I I I I I I -- I I/O I/O O O O I I/O Internal Connection Inverter Out -- -- Pull-Low Pull-Low Pull-Low Pull-Low Pull-Low Pull-Low -- -- -- -- Inverter Out Inverter Out -- -- -- LED flash output Description Vibration oscillator output Positive power supply KEY6 input, high active KEY5 input, high active KEY4 input, high active KEY3 input, high active KEY2 input, high active KEY1 input, high active Negative power supply, GND Power on reset For IC test only For IC test only Sound output, normally low at the standby state Sound output, out of phase to pad 14 Oscillator output Oscillator input For IC test only Absolute Maximum Ratings* Supply Voltage ................................. -0.3V to 5V Input Voltage.................... VSS-0.3 to VDD+0.3V Storage Temperature................. -50C to 125C Operating Temperature................... 0C to 70C *Note: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damageto the device. These are stress ratings only. Functional operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute maximum rating conditions for extended periods may affect device reliability. 3 11th July '97 HT2860 Electrical Characteristics Symbol VDD ISTB IDD IOH IOL ILED fSYS VIH VIL (Ta=25C) Parameter Operating Voltage Standby Current Operating Current OUT Source Current OUT Sink Current LED Source Current Oscillator Frequency "H" Input Voltage "L" Input Voltage Test Conditions VDD -- 3V 3V 3V 3V 3V 3V 3V 3V Min. 2.4 -- -- -1 1 -0.7 -- 2.4 -- Typ. 3 1 100 -2 2 -1.5 128 -- -- Max. 4.5 5 200 -- -- -- -- -- 0.6 Unit V A A Conditions -- -- No load VOH=2.5V VOL=0.5V VOH=2.5V ROSC=120k -- -- mA mA mA kHz V V Timing Diagram 4 11th July '97 HT2860 Application Circuits Speaker application 5 11th July '97 HT2860 6 11th July '97 HT2860 7 11th July '97 HT2860 Application Circuits (HT2860B -- Six Alarm Sounds) 8 11th July '97 HT2860 Application Circuits (HT2860C -- Six Alarm Sounds) 9 11th July '97 |
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