HT2830 Up/Down Tone Generator Features • • • • • Single power supply: 2.4V~3.3V Low standby current: 1µA (Typ.) at VDD=3V Speaker or direct piezo application Sound output: one Main Tone plus two Fighting Sounds (1,2) • • Two direct LED drive outputs (The flash rate depends on the sound speed) Option mode selection: normal mode or auto mode (bonding option) Minimum external components General Description tures from the customer’s sound samples can be analyzed and programmed into an internal ROM by changing a mask layer during device fabrication. The HT2830 is suitable for various toy applications. The HT2830 is a CMOS LSI chip designed for use in sound effect products. It is a body structure including tone circuit, noise circuit, an updown counter, and other control logic to generate various sounds such as JET plane, motorcycle, helicopter, train, and so forth. Fea- Pin Assignment 1 9th July ’97 HT2830 Block Diagram Pad Assignment Chip size: 97 × 107 (mil)2 * The IC substrate should be connected to VDD in the PCB layout artwork. 2 9th July ’97 HT2830 Pad Coordinates Unit: mil Pad No. X Y Pad No. X Y 1 2 3 4 5 6 7 8 9 10 11 –36.13 –36.13 –36.13 –36.13 –36.13 –29.70 –23.24 –13.35 13.46 20.66 27.18 24.57 16.62 –26.09 –33.96 –40.46 –40.46 –40.46 –40.46 –40.46 –40.46 –40.46 12 13 14 15 16 17 18 19 20 21 36.01 36.01 36.01 36.01 36.01 36.01 –0.58 –20.13 –28.24 –36.25 –40.46 –33.96 –20.66 –0.88 24.24 40.46 40.46 40.46 40.46 40.46 Pad Description Pad No. Pad Name I/O Description 1 SWAB I Fighting sound 1/2 toggle input, low active 2 SWB I Fighting sound 2 input, low active 3 SWUP I Main tone up input, low active 4 SWDN I Main tone down input, low active 5 VSS — Negative power supply, GND 6 OPT1 I Main tone option 7 TEST6 I For IC test only 8 SWA I Fighting sound 1 input, low active 9 TEST5 I For IC test only 10 OPT2 I Normal mode/auto mode option 11 VDD — Positive power supply 12 TEST3 O For IC test only 13 LED1 O LED flash output 14 LED2 O LED flash output 15 OUT O Sound output 16 OUT O Sound output, out of phase to pad 15 17 TEST1 O For IC test only 18 OSC2 O Oscillator output 19 OSC1 I Oscillator input 3 9th July ’97 HT2830 Pad No. Pad Name I/O Description 20 TEST2 O For IC test only 21 TEST4 I For IC test only (1) OPT1: Bond pad 5 → Main Tone 1 Bond pad 6 → Main Tone 2 (2) OPT2: Bond pad 10 → Auto Mode Bond Pad 11 → Normal Mode Absolute Maximum Ratings* Supply Voltage ................................. –0.3V to 5V Storage Temperature................. –50°C to 125°C Input Voltage..................VSS–0.3V to VDD+0.3V Operating Temperature................... 0°C to 70°C *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. (Ta=25°C) Electrical Characteristics Symbol Parameter Test Conditions VDD Conditions Min. Typ. Max. Unit VDD Operating Voltage — — 2.4 3 3.3 V ISTB Standby Current 3V — — 1 5 µA IDD Operating Current 3V No load — — 150 µA IOH OUT Source Current 3V VOH=2.5V –2 — — mA IOL1 OUT Sink Current 3V VOL=0.5V 0.7 — — mA IOL2 LED1 Sink Current 3V VOL=1V –8 — — mA IOL3 LED2 Sink Current 3V VOL=1V –8 — — mA VIH “H” Input Voltage 3V — 2.4 — — V VOL “L” Input Voltage 3V — — — 0.6 V FOSC Oscillator Frequency — ROSC=62kΩ — 256 — kHz 4 9th July ’97 HT2830 Timing Diagram & Application Circuit • Normal mode (1) 5 9th July ’97 HT2830 • Normal mode (2) 6 9th July ’97 HT2830 • Normal mode (3) 7 9th July ’97 HT2830 • Auto mode (1) 8 9th July ’97 HT2830 • Auto mode (2) 9 9th July ’97 HT2830 Application Circuit (HT2830A — Jet Plane & Motorcycle) • Jet plane sound: Normal mode (1) Example 10 9th July ’97 HT2830 • Motorcycle sound: Normal mode (1) Example 11 9th July ’97 HT2830 Application Circuit (HT2830B — Helicopter Sound) 12 9th July ’97 HT2830 Application Circuit (HT2830C — Train Sound) 13 9th July ’97 HT2830 Application Circuit (HT2830D — Jet Plane & Motorcycle) • Jet plane sound: Normal mode (1) Example 14 9th July ’97 HT2830 • Motorcycle sound: Normal mode (1) Example 15 9th July ’97