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參數資料
| 型號： | MT8964 |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | Codec |
| 英文描述： | Integrated PCM Filter Codec(集成PCM濾波器/編解碼器（用于數字遠程通信）) |
| 中文描述： | 集成濾波器的PCM編解碼器（集成的PCM濾波器/編解碼器（用于數字遠程通信）） |
| 文件頁數： | 8/24頁 |
| 文件大?。?/td> | 120K |
| 代理商： | MT8964 |
MT8960/61/62/63/64/65/66/67
ISO
2
-CMOS
6-26
Logic Control Outputs SD0-5
These outputs are directly controlled by the logic
states of bits 0-5 in Register B. A logic low (GNDD)
in Register B causes the SD outputs to assume an
inactive state. A logic high (V
DD
) in Register B
causes the SD outputs to assume an active state
(see Table 3). SD0-2 switch between GNDD and V
DD
and may be used to control external logic or
transistor circuitry, for example, that employed on the
line card for performing such functions as relay drive
for application of ringing to line, message waiting
indication, etc.
SD3-5 are used primarily to drive external analog
circuitry. Examples may include the switching in or
out of gain sections or filter sections (eg., ring trip
filter) (Figure 7).
MT8962/63/66/67 provides all six SD outputs.
MT8960/61/64/65 each packaged in an 18-pin DIP
provide only four control outputs, SD0-3.
Figure 6 - Typical Line Termination
Telephone Set
2 Wire
Analog
Supervision
Protection
Battery
Feed
Ringing
PCM Highway
2W/4W
Converter
MT8960/61
MT8962/63
MT8964/65
MT8966/67
Table 3. Control States - Register B
BITS 0-2
LOGIC CONTROL OUTPUTS SD
0
-SD
2
0
Inactive state - logic low (GNDD).
1
Active state - logic high (V
DD
).
BIT 3
LOGIC CONTROL OUTPUT SD
3
0
Inactive state - High Impedance.
1
Active state - GNDA.
BITS 4,5
LOGIC CONTROL OUTPUTS SD
4
, SD
5
0
Inactive state - High Impedance.
1
Active state - GNDD.
BIT 7
BIT 6
CHIP TESTING CONTROLS
0
0
Normal operation.
0
1
Transmit filter testing, i.e.:
Transmit filter input connected to V
X
input
Receive filter and Buffer disconnected from V
R
Receive filter testing, i.e.:
Receive filter input connected to V
X
input
Receive filter input disconnected from codec
1
0
1
1
Codec testing i.e.:
Codec analog input connected to V
X
Codec analog input disconnected from transmit filter output
Codec analog output connected to V
R
V
R
disconnected from receive filter output
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MT8964AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated PCM Filter Codec |
| MT8964AE | 制造商:Microsemi Corporation 功能描述:U-LAW FILTER CODEC EOL190808 制造商:MITEL 功能描述: |
| MT8964AE1 | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:PCM FLTR CODEC 18PDIP - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC CODEC U-LAW CCITT PCM 18PDIP 制造商:Microsemi Corporation 功能描述:MT8964 Series 5 V 8-bit 1ADC /1 DAC Integrated PCM Filter Codec - PDIP-18 |
| MT8965 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated PCM Filter Codec |
| MT8965AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO2-CMOS Integrated PCM Filter Codec |
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