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參數(shù)資料
| 型號： | MT88E46 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Bellcore Compliant Calling Number Identification Circuit(兼容貝爾內(nèi)核主叫識別電路) |
| 中文描述： | 貝爾通訊兼容主叫號碼識別電路（兼容貝爾內(nèi)核主叫識別電路） |
| 文件頁數(shù)： | 11/25頁 |
| 文件大?。?/td> | 111K |
| 代理商： | MT88E46 |
Advance Information
MT88E46
11
The partial power down feature can also be used to
reset the FSK or CAS circuits, such as upon system
power up. To reset the FSK demodulator, use CB1/2
to select CAS mode for about 10
μ
s, DR will become
high. To reset the CAS detector, select FSK mode for
about 10
μ
s, DET will become high.
Oscillator
The MT88E46 requires a 3.579545MHz crystal to
generate its oscillator clock. To meet the CAS
detection frequency tolerance specifications the
crystal must have a 0.1% frequency tolerance. The
crystal specification is as follows:
Frequency:
Frequency Tolerance:
3.579545MHz
±
0.1% (over
temperature range
of the application)
Parallel
18pF
150
2mW
Resonance Mode:
Load Capacitance:
Maximum Series Resistance:
Maximum Drive Level:
e.g. CTS MP036S
Alternatively an external clock source can be used.
In which case the OSC1 pin should be driven directly
from a CMOS buffer and the OSC2 pin left open.
For 5V
±
10% applications any number of MT88E46’s
can be connected as shown in Figure 6 so that only
one crystal is required.
Figure 6 - Common Crystal Connection
OSC1
OSC2
OSC1
OSC2
OSC1
OSC2
3.579545 MHz
MT88E46
MT88E46
MT88E46
to the
next MT88E46
(For 5V
±
10% applications only)
Figure 7 - Application Circuit: Multiple Interrupt Sources
Interrupt Source 1
INT1
(Open Drain)
Interrupt Source 2
INT2
(CMOS)
MT88E46
Vdd
R2
DR/DET
(CMOS)
INT (input)
Microcontroller
Input Port Bit
R1 can be opened and
D1 shorted if the
microcontroller does not
read the INT1 pin.
D1
Vdd
R1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MT88E46_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Bellcore Compliant Calling Number Identification Circuit |
| MT88E46AS | 制造商:Microsemi Corporation 功能描述:CALLER ID CMOS 3.58MHZ 3.3V/5V 20SOIC - Rail/Tube |
| MT88E46AS1 | 制造商:Microsemi Corporation 功能描述:CALLER ID CMOS 3.58MHZ 3.3V/5V 20SOIC - Rail/Tube |
| MT88E46ASR | 制造商:Microsemi Corporation 功能描述:CALLER ID CMOS 3.58MHZ 3.3V/5V 20SOIC - Tape and Reel |
| MT88E46ASR1 | 制造商:Microsemi Corporation 功能描述:CALLER ID CMOS 3.58MHZ 3.3V/5V 20SOIC - Tape and Reel |
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