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| IS22C040 IS22C040 32 to 40 SEC INSTANT VOICE ROM GENERAL DESCRIPTION ISSI OCTOBER 1998 ISSI (R) (R) FEATURES * 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 A 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. (c) Copyright 1998, Integrated Silicon Solution, Inc. Integrated Silicon Solution, Inc. VP009-1C 10/01/98 1 IS22C040 BLOCK DIAGRAM ISSI (R) OSC OSCILLATOR ADDRESS SEQUENCER CLOCK GENERATOR ADPCM DECODER CONTROL LOGIC POP NOISE REDUCTION LED DRIVER BUZZER BUFFER VOICE EPROM Vcc GND S1 S8 SBT IRP LED2 LED1 STP D/A COUT VOUT1 VOUT2 Programmable Options The IS22C040 provides different control functions for user specified applications. They include: * 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 Silence Compression 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. 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 Range Ambient Temp. 0C to +70C -40C to +85C Vcc 3.0V to 6.0V 3.0V to 6.0V Commercial Industrial 2 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 IS22C040 SECTION TRIGGERING S1 HIGH NC NC NC NC NC NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH HIGH S2 NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH S3 NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH S4 NC NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH HIGH HIGH NC NC NC NC S5 NC NC NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH HIGH HIGH NC NC NC S6 NC NC NC NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH HIGH HIGH NC NC S7 NC NC NC NC NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH HIGH HIGH NC S8 NC NC NC NC NC NC NC HIGH NC NC NC NC NC NC HIGH HIGH NC NC NC NC NC HIGH HIGH HIGH NC NC NC NC HIGH HIGH HIGH HIGH ISSI (R) Section 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 3 IS22C040 PIN DESCRIPTIONS Name S8 I/O I O O O -- O O O I I I -- I I -- I I I I I Function Trigger Switch 8, Internal Pull LOW, Active HIGH Drives First LED Flash at 3 Hz, Active LOW PWM Audio Signal Output for Buzzer Compliment PWM Audio Signal Output for Buzzer Power Ground Generate 30 ms Pulse or Busy Signal After Voice Playback Drives Second LED Flash at 3 Hz, Active LOW Current Output from Internal DAC for Speaker Playback Oscillator Resistor Pin to Control Sampling Frequency Trigger Switch 5, Internal Pull LOW, Active HIGH Trigger Switch 6, Internal Pull LOW, Active HIGH Program Power Supply, No Connect When Voice Playback Trigger Switch 1, Internal Pull LOW, Active HIGH Trigger Switch 2, Internal Pull LOW, Active HIGH Positive Power Supply Trigger Switch 3, Internal Pull LOW, Active HIGH Trigger Switch 4, Internal Pull LOW, Active HIGH One Key or Sequential Trigger, Internal Pull LOW, Active HIGH Interrupt to Stop Playback, Internal Pull LOW, Active HIGH Trigger Switch 7, Internal Pull LOW, Active HIGH ISSI PIN CONFIGURATION 20-Pin 300-mil PDIP (R) LED1 VOUT1 VOUT2 GND STP/BUSY S8 LED1 VOUT1 VOUT2 GND STP LED2 COUT OSC S5 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 S7 IRP SBT S4 S3 VCC S2 S1 VPP S6 LED2 COUT OSC S5 S6 VPP S1 S2 VCC S3 S4 SBT IRP S7 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 IS22C040 BONDING DIAGRAM BONDING PARAMETERS Pin 1 2 3 6 7 8 9 10 11 12 13 14 Y 15 X (0,0) Note: Substrate must be connected to GND Pad size = 100 m x 100 m 5 4 3 2 1 20 19 18 17 16 ISSI Name S8 X 3451.9 3451.9 3451.9 3451.9 3368.10 137.18 100.4 100.4 100.4 100.4 100.4 100.4 100.4 100.4 187.05 3372.5 3451.9 3451.9 3451.9 3451.94 Y 1599.7 1861.0 2147.6 2444.5 2803.35 2795.93 2486.3 2245.0 1790.0 1469.5 1230.0 989.6 662.3 422.7 113.78 141.8 581.5 836.0 1090.6 1345.13 (R) LED1 VOUT1 VOUT2 GND STP 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 LED2 COUT OSC S5 S6 VPP S1 S2 VCC S3 S4 SBT IRP S7 DC CHARACTERISTICS Symbol VCC ISB IOP VIH VIL IOH IOL ICO ISTPH TSTPL ILED F/F Parameter Description Operating Voltage Standby Current Operating Current Input HIGH Voltage Input LOW Voltage VOUT LOW O/P Current VOUT HIGH O/P Current COUT O/P Current STP LOW O/P Current STP HIGH O/P Current Output Current LED Frequency Stability VCC = 3.0V, I/O Open Vcc = 3.0V, I/O Open Vcc = 3.0V Vcc = 3.0V Vcc = 3.0V, VOUT = 0V Vcc = 3.0V, VOUT = 3.0V Vcc = 3.0V, VCOUT = 0.7V Vcc = 3.0V, VSTP = 0V Vcc = 3.0V, VSTP = 3.0V Vcc = 3.0V - 6.0V FOSC(3V) - FOSC(3.5V) FOSC (3V) Condition Min. 3.0 -- -- 2.5 -0.3 -- -- -- -- -- 6 -- Typ. 4.5 1 -- 3.0 0 -12 12 -2 -5 5 8 -- Max. 6.0 5 100 3.5 0.3 -- -- -- -- -- 10 5 Unit V A A V V mA mA mA mA mA mA % Integrated Silicon Solution, Inc. VP009-1C 10/01/98 5 IS22C040 TIMING DIAGRAM PULSE TRIGGERED a. Trigger is shorter than a phrase output S1 S2 COUT STP LED Phrase 2 Phrase 1 Phrase 2 Phrase 2 ISSI (R) b. Trigger is longer than a phrase output LEVEL TRIGGERED a. Trigger is shorter than a phrase output S1 S2 COUT LED Phrase 2 Phrase 1 b. Trigger is longer than a phrase output Phrase 2 Phrase 2 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 Phrase 1 Phrase 2 Phrase 1 Phrase N Phrase 1 6 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 IS22C040 SINGLE BUTTON TRIGGER, SEQUENTIAL (SBT) a. Pulse Triggered SBT COUT Phrase 1 Phrase 2 Phrase 2 Phrase 2 Phrase N Phrase 1 ISSI (R) b. Level Triggered SBT COUT Phrase 1 Phrase 2 Phrase 2 Phrase 2 Phrase N Phrase 1 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 7 IS22C040 APPLICATION CIRCUITS ISSI (R) ROSC OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP Vcc SP COUT ROSC OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP Vcc VOUT1 VOUT2 PIEZO BUZZER GND GND Figure 1. Typical Application with Speaker Figure 2. Typical Application with Piezo Buzzer ROSC OSC Vcc ROSC OSC Vcc SP COUT COUT SBT IRP SBT STP GND IRP GND Figure 3. Cascade Application 8 Integrated Silicon Solution, Inc. VP009-1C 10/01/98 IS22C040 APPLICATION CIRCUITS ISSI (R) ROSC OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP Vcc COUT ROSC OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP Vcc SP COUT GND GND Figure 4. Parallel Application (Mixing two speeches or speech with background music) ROSC OSC S1 S2 S3 S4 S5 S6 S7 S8 SBT IRP Vcc SP COUT LED2 LED1 GND Figure 5. LED Application Integrated Silicon Solution, Inc. VP009-1C 10/01/98 9 IS22C040 APPLICATION CIRCUITS ISSI (R) ROSC CDS OSC Vcc SP COUT SBT IRP GND SW8 ROSC SW5 SW1 SW6 SW2 Vcc SP OSC S1 S2 COUT 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. 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 IS22C040 ISSI ORDERING INFORMATION Commerical Range: 0C to +70C Order Part No. IS22C040X IS22C040P Package Unpackaged 20-Pin 300-mil Plastic DIP (R) Industrial Range: -40C to +85C Order Part No. IS22C040XI IS22C040PI Package Unpackaged 20-Pin 300-mil Plastic DIP ISSI (R) Integrated Silicon Solution, Inc. 2231 Lawson Lane Santa Clara, CA 95054 Fax: (408) 588-0806 Toll Free: 1-800-379-4774 Email: sales@issi.com http://www.issi.com Integrated Silicon Solution, Inc. VP009-1C 10/01/98 11 |
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