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參數(shù)資料
| 型號(hào)： | MT88L85 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface |
| 中文描述： | 3V的集成DTMFTransceiver與掉電 |
| 文件頁(yè)數(shù)： | 17/20頁(yè) |
| 文件大?。?/td> | 350K |
| 代理商： | MT88L85 |
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Advance Information
MT88L85
4-87
Characteristics are over recommended operating conditions unless otherwise stated
Typical figures are at 25°C, V
DD
=3V, and for design aid only: not guaranteed and not subject to production testing
NOTES: 1)
dBm=decibels above or below a reference power of 1 mW into a 600 ohm load.
2)
Digit sequence consists of all 16 DTMF tones.
3)
Tone duration=40 ms. Tone pause=40 ms.
4)
Nominal DTMF frequencies are used.
5)
Both tones in the composite signal have an equal amplitude.
6)
The tone pair is deviated by ± 1.5 %±2 Hz.
7)
Bandwidth limited (3 kHz) Gaussian noise.
8)
The precise dial tone frequencies are 350 and 440 Hz (±2 %).
9)
Guaranteed by design and characterization. Not subject to production testing.
10)
Referenced to the lowest amplitude tone in the DTMF signal.
11)
For guard time calculation purposes.
Figure 15 - DS/RD/WR Clock Pulse
AC Electrical Characteristics
- MPU Interface
- Voltages are with respect to ground (V
SS
), unless otherwise stated.
Characteristics
Sym
Min
Typ
Max
Units
Conditions
1
DS/RD/WR clock frequency
f
CYC
t
CYC
t
CL
t
CH
t
R,
t
F
t
RWS
t
RWH
t
AS
t
AH
t
DHR
t
DDR
t
DSW
t
DHW
t
CSS
t
CSH
4.0
MHz
Figure 15
2
DS/RD/WR cycle period
250
ns
Figure 15
3
DS/RD/WR low pulse width
150
ns
Figure 15
4
DS/RD/WR high pulse width
100
ns
Figure 15
5
DS/RD/WR rise and fall time
20
ns
Figure 15
6
R/W setup time
0
ns
Figures 16 & 17
7
R/W hold time
26
ns
Figures 16 & 17
8
Address setup time (RS0)
0
ns
Figures 16 - 19
9
Address hold time (RS0)
26
ns
Figures 16 - 19
10
Data hold time (read)
22
ns
Figures 16 - 19
11
DS/RD to valid data delay (read)
80
100
ns
Figures 16 - 19
12
Data setup time (write)
35
ns
Figures 16 - 19
13
Data hold time (write)
10
ns
Figures 16 - 19
14
Chip select setup time
45
ns
Figures 16 - 19
15
Chip select hold time
40
ns
Figures 16 - 19
t
CYC
t
R
t
CH
t
CL
DS/RD/WR
t
F
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT88L85AE | 3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface |
| MT88L85AN | 3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface |
| MT88L85AP | 3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface |
| MT88L89 | 3V Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT88L89AC | 3V Integrated DTMFTransceiver with Adaptive Micro Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT88L85AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface |
| MT88L85AE1 | 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 3V 24PDIP - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX DTMF 3V 24PDIP 制造商:Microsemi Corporation 功能描述:IC TXRX DTMF 3V 24PDIP |
| MT88L85AN | 制造商:Microsemi Corporation 功能描述: |
| MT88L85AN1 | 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 3V 24SSOP - Rail/Tube 制造商:Microsemi Corporation 功能描述:3V DTMF TRANSCEIVER |
| MT88L85ANR | 制造商:Microsemi Corporation 功能描述: |
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