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參數(shù)資料
| 型號： | MSM7502 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 元件分類： | Codec |
| 英文描述： | Multi-Function PCM CODEC |
| 中文描述： | 多功能的PCM編解碼器 |
| 文件頁數(shù)： | 12/35頁 |
| 文件大?。?/td> | 196K |
| 代理商： | MSM7502 |
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Semiconductor
MSM7502
12/35
CEN
Chip Enable signal input.
When CEN is in digital "0" state, WRN and RDN are valid.
RESETN
Reset signal input.
Digital "0" input to RESETN makes all of internal control registers to be initialized. When
powered on, this RESETN signal should be input for initializing the system.
TIMEN
Watchdog timer output.
When the processor does not reset the timer, the 500 ms period (Digital "0" : 4 ms) digital signal
is continuously output. When RESETN is at digital "0", this timer is reset. And, in about 500 ms
after RESETN goes to digital "1", the first timer output signal is issued and then the timer signal
is output at intervals of a 500 ms. If the SYNC signal is not input, the TIMEN signal is not output.
LML
Control signal output for external hold tone generator.
LML goes to digital "1" state when the hold tone transmit mode on transmit path or the hold
acknowledge tone mode on receive path is selected. During initialized state, LML is in digital "0"
state.
VLCD
By processor control, VLCD outputs a DC voltage between 0 and 1.7 V is about 0.25 V step.
This is used to control the deflection angle of the LCD display. VLCD has the internal resistance
value of about 1 k
W
, so the external load of over 100 k
W
should be used. During initialized state,
VLCD outputs the voltage of 0 V.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7503 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function PCM CODEC |
| MSM7503GS-BK | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function PCM CODEC |
| MSM7507-01 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
| MSM7507-01GS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
| MSM7507-01MS-K | 制造商:ROHM Semiconductor 功能描述: |
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