aIVR2104 Datasheet | APLUS

FEATURES Standard CMOS process. Embedded EPROM. Embedded 8-bit MCU. 10, 21 and 42sec voice duration at 6 KHz sampling with 4-bit ADPCM pression. bination of voice building blocks to extend playback duration. Table entries are available for voice block binations. User selectable PCM or ADPCM data press. Voice Group Trigger Options: Edge / Level; Hold / Un-hold; Retrigger / Non-retrigger. Programmable I/Os, Timer Interrupt and Watch Dog Timer. Built-in oscillator with fixed Rosc, software control sampling frequency 2.2V - 3.6V single power supply and < 5u A low stand-by current. PWM Vout1 and Vout2 drive speaker directly. D/A COUT with ramp-up ramp-down option to drive speaker through an external BJT. DESCRIPTION Aplus’ a IVR is a 8-bit CPU based Voice chip series. It is fabricated with Standard CMOS process with embedded voice storage memory. It can store from 10 to 42sec voice message with 4-bit ADPCM pression at 6KHz sampling rate. 8-bit PCM is also available as user selectable option to improve sound quality. Depending on IC body, there are up to twelve programmable I/O pins. Key trigger and Parallel CPU trigger mode can be configured according to different application requirement. User selectable triggering and output signal options provide maximum flexibility to various applications. Built-in resistor controlled oscillator, 8-bit current mode D/A output and PWM direct speaker driving output minimize the number of external ponents. Part Number a IVR2104 a IVR4208 Duration 21 sec 42 sec Programmable IO 4 8 2 MAR 12, 2015 Integrated Circuits Inc. PIN CONFIGURATIONS a IVR2104/4208 PIN DESCRIPTIONS Pin Names VOUT1 VOUT2_COUT VSS OSC VDDA VDD PBn PCn RSTB Description PWM output to drive speaker directly PWM output or COUT DAC output select by programmable option Power Ground Oscillator input Positive Power Supply Positive Power Supply Programmable I/O pins (n: 0 to 3 for all a IVR chips) Programmable I/O pins (n: 0 to 3 for a IVR4208 only) Reset pin, Low...