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                                            Nyquest Technology Corporation Limited
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                                            Nyquest provide good quality and efficiency OTP ICs that have complete and total solutions for all series of Nyquest products.

                                             

                                            NY7 Series
                                             
                                            Description

                                            The NY7 series IC is a powerful 4-bit micro-controller based sound processor. There are 8 channels that are configured as speech or MIDI, and all of these 8 channels or part of them can be played with speech or MIDI simultaneously.NY7 can precisely synthesize any tone frequency of MIDI with +/- 0.5% accurate internal oscillation and automatic Tone-Calibration. Besites, NY7 provides two kinds of audio outputs with fine resolution, one is 13-bit current-type D/A converter (DAC) and the other is 13-bit Push-Pull amplifier (PP). Therefore NY7 speech/melody quality is the best choice among all solutions.

                                             

                                             
                                            Feature
                                            • Wide operating voltage range: 2.0V to 5.5V.
                                            • 4-bit RISC type micro-controller with 74 instructions.
                                            • NY7CxxxA have 19 bodies. The maximum ROM size is 1536K x 12-bit. Program and voice data share the same ROM space.
                                            • 448x4-bit RAM, divided into 2 pages.
                                            • Up to 4MHz system clock for instruction execution.
                                            • Slow mode to operate at low power consumption. (+/-3% accuracy)
                                            • Halt mode to save power, less than [email protected] standby current.
                                            • Built-in internal Ring oscillation is accurate with +/- 0.5% frequency deviation.
                                            • Low voltage reset (LVR=1.9V) and watch-dog reset (WDT) are supported to protect the system.
                                            • One interrupt entrance for multiple interrupt sources with an independent stack.
                                            • Up to 24 flexible Bi-direction I/Os. Direction of each I/O is independently controlled by individual register bit.
                                            • Each Bi-direction I/O pin can be optioned as different input and output function. For the input option, users can select one of three kinds of option: input with pull-high resistor, input without pull-high resistor, or input with register-controlled pull-high resistor (high-to-low wakeup only). For the output option, users can select one of three kinds of option: output with normal drive current and normal sink current, large sink current or constant sink current. (Mask option)
                                            • Shared pins to provide IR carrier and external reset feature: PF2/IR & PF3/Reset. (Mask option)
                                            • Selection of IR carrier frequency and data high/low IR output is supported.
                                            • Maximum of 8 channels can be played simultaneously, each channel can be arbitrarily assigned as speech or MIDI channel.
                                            • New high fidelity 6-bit ADPCM speech/ MIDI timbre synthesis algorithm and ADSR with 256-step envelope for MIDI synthesis.
                                            • Patented noise filtering algorithm with 128KHz over sampling to enhance signal-to-noise ratio and provide excellent sound quality without ROM size increase.
                                            • 16-step digital volume control for synthetic speech/melody.
                                            • Built-in hardware automatic Tone-Calibration of near-zero frequency deviation for precise tone frequency.
                                            • High quality 13-bit D/A converter or 13-bit push-pull amplifier audio output. (Push-Pull output power Pout=1.3W @ VDD=5V, THD+N=10%, F=1kHz, RL=4Ω.)
                                             
                                            Nyquest Technology Co., Ltd. Address: 7F-1, No.81, Shuili Road, Hsinchu City 30059, Taiwan, R.O.C. Tel: +886-3-516 9077 Fax: +886-3-516 9076
                                            ?2010 Copyright   Nyquest Technology Co., Ltd., All Rights Reserved. Best Viewed at 1280 x 1024 Microsoft Internet Explorer 8 Last updated: 2019/04/17
                                            麻将二八杠怎么玩
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