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參數(shù)資料
| 型號： | MSM6889 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Multi-Function Telecommunication LSI(多功能遠(yuǎn)程通信收發(fā)LSI) |
| 中文描述： | 多功能電信大規(guī)模集成電路（多功能遠(yuǎn)程通信收發(fā)LSI）的 |
| 文件頁數(shù)： | 5/21頁 |
| 文件大?。?/td> | 159K |
| 代理商： | MSM6889 |
5/21
MSM6889
Semiconductor
PIN DESCRIPTION
+5 V Power Supply (Analog Circuit).
When power is turned on or the power down mode is released, the
device must be put into the PB tone transmit mode or PB tone
detect mode.
Output, non-inverting input and inverting input pins of on-chip
operational amplifier.
No hybrid transformer is required by use of these pins. (See Fig. 2.)
Analog signal output.
PB tone or modem transmit signal is output from this pin.
—
VA
35
1
O
I
I
GAR
AIN+
AIN–
37
39
40
2
3
4
O
AO
41
5
On-chip signal ground, having a potential of about +2.5 V.
O
SG
43
6
I
GAT1
GAT2
MOD
PB
44
45
46
47
7
8
9
O
O
O
10
PB is the PB tone output and MOD is the modem signal output.
By connecting external resistors to GAT1 and GAT2 pins, signal level can
be set at required values for the modem signal and
the PB tone that are output from AO, independently. (See Fig. 3.)
These pins are used to externally adjust the received carrier
detect(CD) signal level.
The potential of VR1 to SG is about +1.1 V. The carrier
detect level can be set at the required value by a on-chip resistor
divider between VR1 and SG. The given potential to VR2 is set
about +0.88 V with high resistance inside the IC. (See Fig. 4.)
Analog Ground, 0 V.
O
VR1
50
11
I
VR2
51
12
—
I*
I*
I*
I*
AG
PBG1
PBG2
PBG3
PBG4
52
53
54
56
2
13
14
15
16
17
Inputs used to specify PB tone to be sent.
PB1 to PB4 can be connected externally like 4-bit bus line. Data is
latched at the falling edge of
TEN
. (See Fig. 7 and Fig. 8.)
Description
I/O
Name
Pin Number
GS
RS
*
Digital input pulled up by a high resistance inside the IC.
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PDF描述 |
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| MSM7502 | Multi-Function PCM CODEC |
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| MSM7508B | Single Rail CODEC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM6889RS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function Telecommunication LSI |
| MSM6895 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function PCM CODEC |
| MSM6895GS-BK | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function PCM CODEC |
| MSM6896 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function PCM CODEC |
| MSM6926 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:300 bps Single Chip FSK MODEM |
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