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參數(shù)資料
| 型號： | MT91L60 |
| 廠商： | Mitel Networks Corporation |
| 元件分類： | Codec |
| 英文描述： | 3 Volt Multi-Featured Codec (MFC)(3V 多特性編解碼器) |
| 中文描述： | 3伏多精選編解碼器（MFC）中（3V的多特性編解碼器） |
| 文件頁數(shù)： | 3/32頁 |
| 文件大小： | 146K |
| 代理商： | MT91L60 |
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Advance Information
MT91L60/61
3
13
15
STB/F0i
Data Strobe/Frame Pulse (Input).
For SSI mode this input determines the 8 bit
timeslot used by the device for both transmit and receive data. This active high
signal has a repetition rate of 8 kHz. Standard frame pulse definitions apply in
ST-BUS mode. CMOS level compatible input.
16
STBd/
F0od
(MT91L61
only)
Delayed Frame Pulse Output
. In SSI mode, an 8 bit wide strobe is output after the
first strobe goes low. In ST-BUS mode, a frame pulse is output after 4 channel
timeslots.
14
17
CLOCKin
Clock (Input).
The clock provided to this input pin is used for the internal device
functions. For SSI mode connect the bit clock to this pin when it is 512 kHz or
greater. Connect a 4096 kHz clock to this input when the available bit clock is 128
kHz or 256 kHz. For ST-BUS mode connect C4i to this pin. CMOS level compatible.
15
18
V
DD
Positive Power Supply (Input).
Nominally 3 volts.
16
19
HSPKR-
Inverting Handset Speaker (Output).
Output to the handset speaker (balanced).
17
20
HSPKR+
Non-Inverting Handset Speaker (Output).
Output to the handset speaker
(balanced).
18
22
V
SSA
M-
Analog Ground (Input).
Nominally 0 volts.
19
23
Inverting Microphone (Input).
Inverting input to microphone amplifier from the
handset microphone.
20
24
M+
Non-Inverting Microphone (Input).
Non-inverting input to microphone amplifier
from the handset microphone.
3,9,
16,21
NC
No Connect
. (24 Packages only). Pin 16 is NC for MT91L60.
Pin Description (continued)
Pin #
20 Pin
24 Pin
Name
Description
Overview
The 3V Multi-featured Codec (MFC) features
complete
Analog/Digital
conversion of audio signals (Filter/Codec) and an
analog interface to a standard handset transmitter
and receiver (Transducer Interface). The receiver
amplifier is capable of driving a 300 ohm load.
and
Digital/Analog
Each of the programmable parameters within the
functional blocks is accessed through a serial
microcontroller port compatible with Intel MCS-51
,
Motorola
SPI
and
Microwire
specifications.
include: gain control, power down, mute, B-Channel
select (ST-BUS mode), C&D channel control/access,
law control, digital interface programming and
loopback. Optionally the device may be used in a
controllerless mode utilizing the power-on default
settings.
National
Semiconductor
These
parameters
Functional Description
Filter/Codec
The Filter/Codec block implements conversion of the
analog 0-3.3 kHz speech signals to/from the digital
domain compatible with 64 kb/s PCM B-Channels.
Selection of companding curves and digital code
assignment are programmable. These are ITU-T
G.711 A-law or
μ
-Law, with true-sign/Alternate Digit
Inversion or true-sign/Inverted Magnitude coding,
respectively. Optionally, sign-magnitude coding may
also be selected for proprietary applications.
The Filter/Codec block also implements transmit and
receive audio path gains in the analog domain. A
programmable gain, voice side-tone path is also
included to provide proportional transmit speech
feedback to the handset receiver. This side tone path
feature is disabled by default. Figure 3 depicts the
nominal half-channel and side-tone gains for the
MT91L60/61.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT91L61 | 3 Volt Multi-Featured Codec (MFC)(3V 多特性編解碼器) |
| MT91L61 | ISO2-CMOS 3 Volt Multi-Featured Codec (MFC) |
| MT91L61AE | ISO2-CMOS 3 Volt Multi-Featured Codec (MFC) |
| MT91L61AN | ISO2-CMOS 3 Volt Multi-Featured Codec (MFC) |
| MT91L61AS | ISO2-CMOS 3 Volt Multi-Featured Codec (MFC) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT91L60AE | 制造商:Microsemi Corporation 功能描述:MULTI-FEATURED CODEC 24PDIP - Rail/Tube |
| MT91L60AN | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:3 Volt Multi-Featured Codec (MFC) |
| MT91L60AS | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO2-CMOS 3 Volt Multi-Featured Codec (MFC) |
| MT91L60AS1 | 制造商:Microsemi Corporation 功能描述: |
| MT91L60ASR | 制造商:Microsemi Corporation 功能描述:MULTI-FEATURED CODEC 20SOIC W - Tape and Reel |
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