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W522A010 Datasheet

  • W522A010

  • PowerSpeech IC Family

  • 4頁

  • ETC

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Preliminary W522AXXX DATA SHEET
PWM SYNTHESIZER
GENERAL DESCRIPTION
W522AXXX is a synthesis IC that utilizes the 8-bit PCM coding method to generate high quality voice effects.
In order to save power, the W522AXXX provides PWM output to drive speaker directly without extra transistor
and resistor.
The W522AXXX鈥檚 part number and corresponding duration time at various sampling rate listed as below:
Part number
W522A008
W522A010
Duration @ 4KHz
12.00 seconds
16.00 seconds
Duration @ 4.8KHz
10.00 seconds
13.00 seconds
Duration @ 6KHz
8.00 seconds
10.50 seconds
Duration @ 8KHz
6.00 seconds
8.00 seconds
FEATURES
鈥?/div>
Wide operating voltage range: 2.4 to 5.5 volts
鈥?/div>
8-bit PCM algorithm for high sound quality
鈥?/div>
PWM output to directly drive speaker
鈥?/div>
Provides 1 direct trigger input (including CDS control circuit) with following mask option of play modes:
One shot (enable or disable interruption)
Toggle ON/OFF
Level hold
Complete cycle level hold (enable or disable interruption)
Single cycle level hold
鈥?/div>
Provides 1 output with following mask options:
Active high or low in BUSY signal output while voice playing (not including silence)
LED flash type: 1.5Hz, 3Hz or 6Hz.
LED volume control: 錄, 錕?frac12;, 戮.
鈥?/div>
Maximum duration (voice duration + silence) in repeat cycle is around 21 seconds at 6 KHz
鈥?/div>
Repeat number 1 to 8 can be mask optioned for both one shot and single-cycle level hold
鈥?/div>
Two kinds of trigger input de-bounce time (10 mS or 50
碌S)
by mask option
鈥?/div>
Four kinds of frequencies, 4/4.8/6/8 KHz, can be chosen by mask option
Publication Release Date: May. 2002
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1-
Revision A2

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