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參數資料
| 型號： | MSM7557 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Single Chip MSK Modem with Compandor for Cordless Telephone |
| 中文描述： | 單芯片MSK調制解調器無繩電話與Compandor |
| 文件頁數： | 9/25頁 |
| 文件大?。?/td> | 153K |
| 代理商： | MSM7557 |
9/25
MSM7557
Semiconductor
(Continued)
Name
PDN
Power down control.
Power down state is controlled by PDN, ME, RVE, and TVE.
Function
PDN
ME
RVE
TVE
Voice control
path
OFF
OFF
OFF
ON
Transmit side
modem
OFF
OFF
ON
ON
Receive side
modem
OFF
ON
ON
ON
1
1
0
X
X
1
0
1
0
X
X
0
Mode1
Mode2
Mode3
Mode4
others
X : Don't care
X1
X2
ME
TVE
At the mode 4, all functions are powered on.
At the full power down mode(PDN = "1" and RVE = "0"), the demodulator circuit and FD pin are reset.
When V
DD
is turned ON, the demodulator circuit and FD pin should be reset by setting Mode1.
Crystal connection.
3.6864 MHz crystal shall be connected.
When an external master clock is applied, the clock should be supplied to X2 pin via a 200 pF capacitor for
AC coupling and X1 should be opened.
MSK moudulator output.
When digital "1" is applied to this pin, MSK modulator is connected to the splatter filter.
Refer to TAO pin description.
Transmit side voice signal contorol.
Refer to TAO pin description.
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PDF描述 |
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| MSM7564-01 | CONNECTOR ACCESSORY |
| MSM7570-01 | Multi-Function ADPCM CODEC(多功能ADPCM編碼譯碼器) |
| MSM7575 | Multi-Function ADPCM CODEC(多功能ADPCM(自適應差分脈沖編碼調制）編碼譯碼器) |
| MSM7576 | LSI |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MSM7560 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail ADPCM CODEC |
| MSM7560L | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail ADPCM CODEC |
| MSM7564-01 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:A Single Chip 14.4 kbps Data & Fax Modem |
| MSM7566 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
| MSM7566GS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail CODEC |
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