ISSI IS22C040 ISSI IS22C040 32 to 40 SEC INSTANT VOICE ROM ® ® OCTOBER 1998 FEATURES GENERAL DESCRIPTION • Voice length at – 8 KHz sampling is 32 seconds – 6 KHz sampling is 40 seconds • Silence compression to save memory • Eight trigger pins, S1 to S8 for 32 sections • SBT pin play-all or sequential play-all • 15 ms debounce time suitable for CDS • IRP interrupt pin stops playback at once • STP stop pulse generated at end of playback • BUSY signal for CPU control • Two LEDs flash at 3 Hz interval • 3.0V to 6V single power supply operation • Low standby current (<5 µA at 3V) • Auto-power down • Built-in oscillator, D/A converter, EPROM • ADPCM data compression • Optional pop noise elimination function • COUT pin drives speaker with a transistor • Development tools support • VOUT1 and VOUT2 drives buzzer directly • Sampling rate determined by external resistor • Holdable and unholdable triggering option • Industrial temperature available IS22C040 is a high-quality voice synthesizer with a capacity of 32 to 40 seconds. A proprietary ADPCM algorithm is used. The audio message is stored in a 1024-Kbit on-chip EPROM. The IS22C040 eliminates the need of complicated circuitry in voice playback (Figure 1) but still achieves high voice quality. Sounds such as human speech, animal sounds, musical sounds, and even special sound effects can be synthesized. Devices can be cascaded to achieve longer voice duration (Figure 3). Two devices can be configured in parallel (Figure 4) in order to achieve signal mixing without an external mixer allowing speeches to be mixed with background music synthesis from two different chips. The instant programming nature of the IS22C040 allows a very short production turnaround time. There are no NRE charges that are usually required with conventional voice ROMs. Users now can apply a voice synthesis function as an additional feature to their products even when production volume is relatively small. It is also ideal for trial or engineering prototyping. As a result, the initial investment is minimal and the risk in the product development phase is reduced. The IS22C040 provides a wide voltage operating range from 3.0V to 6.0V. A pair of PWM output pins, VOUT1 and VOUT2 provide direct drive to a buzzer (Figure 2). Voice quality from a buzzer is comparable to speaker output and power consumption is much lower. A current output pin, COUT, enables the device to drive a speaker with a low cost NPN transistor. No complex filtering or amplifier circuit is needed. An automatic ramp up/down function eliminates the undesired noise at the end of playback. Up to 32 sections are accessible through S1 to S8. The SBT trigger pin can be programmed to playback all 32 sections or sequentially from section 1 to 32. An interrupt pin (IRP) and stop pulse (STP) or BUSY signals provide handshaking with microprocessors or other IS22C040 devices. All trigger pins give 15 ms debounce time and is ideal for CDS applications as in Figure 6. Two LED drivers are available, flashing on and off at approximately 3Hz intervals (Figure 5). The internal voltage compensation oscillator requires only one external resistor. Different sampling frequencies are determined by the external oscillator resistor value. ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 1998, Integrated Silicon Solution, Inc. Integrated Silicon Solution, Inc. VP009-1C 10/01/98 1 ISSI IS22C040 ® BLOCK DIAGRAM OSC OSCILLATOR Vcc VOICE EPROM ADDRESS SEQUENCER GND CLOCK GENERATOR ADPCM DECODER S1 CONTROL LOGIC S8 SBT IRP D/A COUT POP NOISE REDUCTION LED2 LED1 STP BUZZER BUFFER LED DRIVER VOUT1 VOUT2 Programmable Options Silence Compression The IS22C040 provides different control functions for user specified applications. They include: If a particular sound sequence includes periods of silence, the IS22C040 will automatically compress the silence to save memory space. This compression will not affect playback of the sound sequence. • Non-sequential or Sequential Play-all • Unholdable or Holdable trigger • STOP or BUSY signal selection • Automatic ramp-up/ramp-down or no ramp-up/ramp-down ABSOLUTE MAXIMUM RATINGS(1) Symbol VTERM TBIAS TSTG Parameter Terminal Voltage with Respect to GND Temperature Under Bias Storage Temperature Value –0.5 to +7.0 –40 to +85 –55 to +125 Unit V °C °C Notes: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. OPERATING RANGE 2 Range Ambient Temp. Vcc Commercial Industrial 0°C to +70°C –40°C to +85°C 3.0V to 6.0V 3.0V to 6.0V Integrated Silicon Solution, Inc. VP009-1C 10/01/98 ISSI IS22C040 ® SECTION TRIGGERING S1 S2 S3 S4 S5 S6 S7 S8 Section HIGH NC NC NC NC NC NC NC 1 NC HIGH NC NC NC NC NC NC 2 NC NC HIGH NC NC NC NC NC 3 NC NC NC HIGH NC NC NC NC 4 NC NC NC NC HIGH NC NC NC 5 NC NC NC NC NC HIGH NC NC 6 NC NC NC NC NC NC HIGH NC 7 NC NC NC NC NC NC NC HIGH 8 HIGH HIGH NC NC NC NC NC NC 9 NC HIGH HIGH NC NC NC NC NC 10 NC NC HIGH HIGH NC NC NC NC 11 NC NC NC HIGH HIGH NC NC NC 12 NC NC NC NC HIGH HIGH NC NC 13 NC NC NC NC NC HIGH HIGH NC 14 NC NC NC NC NC NC HIGH HIGH 15 HIGH NC NC NC NC NC NC HIGH 16 HIGH HIGH HIGH NC NC NC NC NC 17 NC HIGH HIGH HIGH NC NC NC NC 18 NC NC HIGH HIGH HIGH NC NC NC 19 NC NC NC HIGH HIGH HIGH NC NC 20 NC NC NC NC HIGH HIGH HIGH NC 21 NC NC NC NC NC HIGH HIGH HIGH 22 HIGH NC NC NC NC NC HIGH HIGH 23 HIGH HIGH NC NC NC NC NC HIGH 24 HIGH HIGH HIGH HIGH NC NC NC NC 25 NC HIGH HIGH HIGH HIGH NC NC NC 26 NC NC HIGH HIGH HIGH HIGH NC NC 27 NC NC NC HIGH HIGH HIGH HIGH NC 28 NC NC NC NC HIGH HIGH HIGH HIGH 29 HIGH NC NC NC NC HIGH HIGH HIGH 30 HIGH HIGH NC NC NC NC HIGH HIGH 31 HIGH HIGH HIGH NC NC NC NC HIGH 32 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 3 ISSI IS22C040 PIN DESCRIPTIONS PIN CONFIGURATION Name I/O S8 I Trigger Switch 8, Internal Pull LOW, Active HIGH LED1 O Drives First LED Flash at 3 Hz, Active LOW VOUT1 O VOUT2 O ® Function PWM Audio Signal Output for Buzzer Compliment PWM Audio Signal Output for Buzzer GND — Power Ground STP/BUSY O Generate 30 ms Pulse or Busy Signal After Voice Playback LED2 O Drives Second LED Flash at 3 Hz, Active LOW COUT O Current Output from Internal DAC for Speaker Playback OSC I Oscillator Resistor Pin to Control Sampling Frequency S5 I Trigger Switch 5, Internal Pull LOW, Active HIGH S6 I Trigger Switch 6, Internal Pull LOW, Active HIGH VPP — S1 I Trigger Switch 1, Internal Pull LOW, Active HIGH S2 I Trigger Switch 2, Internal Pull LOW, Active HIGH VCC — S3 I Trigger Switch 3, Internal Pull LOW, Active HIGH S4 I Trigger Switch 4, Internal Pull LOW, Active HIGH SBT I One Key or Sequential Trigger, Internal Pull LOW, Active HIGH IRP I Interrupt to Stop Playback, Internal Pull LOW, Active HIGH S7 I Trigger Switch 7, Internal Pull LOW, Active HIGH 20-Pin 300-mil PDIP S8 1 20 S7 LED1 2 19 IRP VOUT1 3 18 SBT VOUT2 4 17 S4 GND 5 16 S3 STP 6 15 VCC LED2 7 14 S2 COUT 8 13 S1 OSC 9 12 VPP 10 11 S6 S5 Program Power Supply, No Connect When Voice Playback Positive Power Supply Note: 1. The following pins are used to program data into the memory on the chip: pins 5, 6, 7, 9, 12, 15, 18 and 19. 4 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 ISSI IS22C040 BONDING DIAGRAM Y ® BONDING PARAMETERS Pin Name X Y 1 S8 3451.9 1599.7 2 LED1 3451.9 1861.0 3 VOUT1 3451.9 2147.6 4 VOUT2 3451.9 2444.5 5 GND 3368.10 2803.35 6 5 7 4 8 3 9 2 6 STP 137.18 2795.93 10 1 7 LED2 100.4 2486.3 11 20 8 COUT 100.4 2245.0 12 19 13 18 9 OSC 100.4 1790.0 14 17 10 S5 100.4 1469.5 15 16 11 S6 100.4 1230.0 12 VPP 100.4 989.6 13 S1 100.4 662.3 14 S2 100.4 422.7 15 VCC 187.05 113.78 16 S3 3372.5 141.8 17 S4 3451.9 581.5 18 SBT 3451.9 836.0 19 IRP 3451.9 1090.6 20 S7 3451.94 1345.13 X (0,0) Note: Substrate must be connected to GND Pad size = 100 µm x 100 µm DC CHARACTERISTICS Symbol Parameter Description Condition Min. Typ. Max. Unit 3.0 4.5 6.0 V VCC Operating Voltage ISB Standby Current VCC = 3.0V, I/O Open — 1 5 µA IOP Operating Current Vcc = 3.0V, I/O Open — — 100 µA VIH Input HIGH Voltage Vcc = 3.0V 2.5 3.0 3.5 V VIL Input LOW Voltage Vcc = 3.0V –0.3 0 0.3 V IOH VOUT LOW O/P Current Vcc = 3.0V, VOUT = 0V — –12 — mA IOL VOUT HIGH O/P Current Vcc = 3.0V, VOUT = 3.0V — 12 — mA ICO COUT O/P Current Vcc = 3.0V, VCOUT = 0.7V — –2 — mA ISTPH STP LOW O/P Current Vcc = 3.0V, VSTP = 0V — –5 — mA TSTPL STP HIGH O/P Current Vcc = 3.0V, VSTP = 3.0V — 5 — mA ILED Output Current LED Vcc = 3.0V – 6.0V 6 8 10 mA ∆F/F Frequency Stability FOSC(3V) – FOSC(3.5V) FOSC (3V) — — 5 % Integrated Silicon Solution, Inc. VP009-1C 10/01/98 5 ISSI IS22C040 ® TIMING DIAGRAM PULSE TRIGGERED a. Trigger is shorter than a phrase output b. Trigger is longer than a phrase output S1 S2 COUT Phrase 2 Phrase 1 Phrase 2 Phrase 2 STP LED LEVEL TRIGGERED a. Trigger is shorter than a phrase output b. Trigger is longer than a phrase output S1 S2 COUT Phrase 2 Phrase 1 Phrase 2 Phrase 2 LED SINGLE BUTTON TRIGGER, NON-SEQUENTIAL PLAY-ALL (SBT) a. Pulse Triggered SBT COUT Phrase 1 Phrase 2 Phrase N Phrase 1 Phrase N Phrase 1 b. Level Triggered SBT COUT 6 Phrase 1 Phrase 2 Phrase 1 Phrase N Phrase 1 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 ISSI IS22C040 ® SINGLE BUTTON TRIGGER, SEQUENTIAL (SBT) a. Pulse Triggered SBT COUT Phrase 1 Phrase 2 Phrase 2 Phrase 2 Phrase N Phrase 1 Phrase 1 Phrase 2 Phrase 2 Phrase 2 Phrase N Phrase 1 b. Level Triggered SBT COUT Integrated Silicon Solution, Inc. VP009-1C 10/01/98 7 ISSI IS22C040 ® APPLICATION CIRCUITS Vcc ROSC OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP Vcc VOUT1 ROSC SP OSC COUT S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP GND Figure 1. Typical Application with Speaker Vcc ROSC OSC VOUT2 PIEZO BUZZER GND Figure 2. Typical Application with Piezo Buzzer Vcc ROSC SP OSC COUT COUT SBT IRP SBT STP GND IRP GND Figure 3. Cascade Application 8 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 ISSI IS22C040 ® APPLICATION CIRCUITS Vcc ROSC OSC Vcc ROSC SP OSC COUT S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP COUT S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP GND GND Figure 4. Parallel Application (Mixing two speeches or speech with background music) Vcc ROSC SP OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP COUT LED2 LED1 GND Figure 5. LED Application Integrated Silicon Solution, Inc. VP009-1C 10/01/98 9 ISSI IS22C040 ® APPLICATION CIRCUITS Vcc ROSC OSC CDS SP COUT SBT IRP GND SW8 Vcc ROSC SW5 SW1 SW6 SP OSC COUT S1 SW2 S2 SW7 S3 SW3 S4 SW4 GND Figure 6. CDS Application and Additional Trigger Notes: The following are typical values: 1. ROSC = 2.0 MW. 2. ß for N (NPN transistor) > 130. 3. SP = 8W. 1/4W. 4. Piezo buzzer resonant frequency = 1 KHz. 10 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 ISSI IS22C040 ® ORDERING INFORMATION Commerical Range: 0°C to +70°C Order Part No. Package IS22C040X Unpackaged IS22C040P 20-Pin 300-mil Plastic DIP Industrial Range: –40°C to +85°C Order Part No. Package IS22C040XI Unpackaged IS22C040PI 20-Pin 300-mil Plastic DIP ISSI ® Integrated Silicon Solution, Inc. 2231 Lawson Lane Santa Clara, CA 95054 Fax: (408) 588-0806 Toll Free: 1-800-379-4774 Email: [email protected] http://www.issi.com Integrated Silicon Solution, Inc. VP009-1C 10/01/98 11