參數(shù)資料
型號(hào)： W925E625
英文描述： Telephone Controller
中文描述： 電話控制器
文件頁數(shù)： 58/71頁
文件大?。?/td> 1055K
代理商： W925E625
W925E/C625
8-bit CID Microcontroller
Revision : A6
-58-
Release Date : 2002/7/2
CIDGD
CIDGA<2:0>
CIDGA.3
CIDGD
CIDGA
Rising latch
Figure 6-25 Internal CID Gain Control Register Setting Waveform
DTMFR1
DTMFR1[7:4] are reserved bits and must be 0000b.
Bit3~Bit0
Acceptable error percentage to sample 4 period of Row freq.
0000
0.6% (default)
0001
2.5%
001X
3.5%
01XX
Reserved
1XXX
Reserved
DTMFR2
Bit3~Bit0
Acceptable error percentage to sample 4 period of Col freq.
0000
0.5% (default)
0001
1.5%
001X
2.5%
01XX
Reserved
1XXX
Reserved
The acceptable error percentage may have small variation by different test environments.
DTMFR2.4=0 DTMF receiver works as a DTMF receiver
DTMFR2.4=1 DTMF receiver works as a tone detector
DTMFR2.5=0 DTMF PT counter is up counter type, change of detected frequency
does not effect counter
DTMFR2.5=1 DTMF PT counter is up counter type, change of detected frequency
resets DTMF PT counter
DTMFR2.6=0 DTMF AT counter is up-down counter type, up counting when no
DTMF detected, down counting if DTMF detected again.
DTMFR2.6=1 DTMF AT counter is up counter type, up counting when no DTMF
detected, pause counting if DTMF detected again.
DTMFR2.7: reserved
There are 4 programmable gain arrays, shown in Figure 6-17, are determined by Low/High
nibbles of PGxx. The following table lists the input gain corresponding to the value of L/H nibble
of PGxx.
X
20 log((40+15*X)/(230-(40+15*X))) dB
X
20 log((40+15*X)/(230-(40+15*X))) dB
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W925E625FG 功能描述:IC MCU 8-BIT W/CID 160-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W925 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
W925EP01 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER
W925EP01FG 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER
W925G240 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER
W925G625 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER
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