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參數資料
| 型號： | W52900 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 音頻合成 |
| 英文描述： | ADPCM Voice Synthesizer(ADPCM話音合成器) |
| 中文描述： | SPEECH SYNTHESIZER, PDIP24 |
| 封裝： | SKINNY, DIP-24 |
| 文件頁數： | 4/8頁 |
| 文件大小： | 105K |
| 代理商： | W52900 |
W52900
- 4 -
FUNCTIONAL DESCRIPTION
Trigger Inputs
The W52900 provides four direct trigger input pins that are pulled high internally. All of these trigger
inputs can be independently defined to be enabled or disabled by the rising or falling edge. The
debounce time of the trigger inputs can be set as 160
μ
S to 320
μ
S or 20 mS to 40 mS.
SPK Output
This pin is a current-type voice output that is connected to the output of the internal D/A converter. The
full-scale output of the 8-bit D/A convereter is 5 mA, which is sufficient to drive an external 8
speaker
through the amplification of a low-power NPN transistor with a
β
of 120 to 160 (an 8050D transistor is
usually appropriate).
I/O Pin
The I/O pins, IO1 to IO8, are multiplexed for four different functions: SCAN/FTEST, LED, STOP, and
INPUT. All of these pins can be defined independently as shown in the following table.
GROUP
IO8
IO7
IO6
IO5
IO4
IO3
IO2
IO1
0
INPUT/STOP
INPUT/LED
1
FTEST/LED
SCAN/LED
SCAN/LED
2
INPUT/LED
SCAN/STOP
3
LED/STOP
LED/STOP
Oscillator
The oscillator is used to generate the system frequency of around 1.5 MHz. The OSC pin is connected
directly to V
DD
by an R
OSC
resistor, which is used to provide a bias current for the oscillator.
RESET
This is an active low reset input with an internal pull-high resistance. If customers turn the W52900 off
and then on again without discharging the V
DD
to ground level, the chip may function abnormally,
causing unpredictable operation. Users may reset the W52900 by sending a pulse through the
RESET pin to restart the operation from the beginning.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
CONDITIONS
RATED VALUE
UNIT
Power Supply
V
DD
V
SS
V
IN
-
-0.3 to +7.0
V
Input Voltage
All Inputs
V
SS
-0.3 to V
DD
+0.3
V
Storage Temp.
T
STG
-
-55 to +150
°
C
°
C
Operating Temp.
T
OPR
-
0 to +70
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W-53 | 制造商:RAF Electronic Hardware 功能描述:SPRING, COMPRESSION, 3.6N, 19.1MM; Body Length:19.1mm; Compressed Length:12mm; Compression Load Max:3.6N; External Diameter:6.35mm; Wire Diameter:0.5mm ;RoHS Compliant: Yes |
| W5300 | 功能描述:以太網 IC HI PERF ENET CONTR TCP/IP+MAC+PHY RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
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| W530-02H | 制造商:Cypress Semiconductor 功能描述:PLL Frequency Multiplier Single 20-Pin SSOP |
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