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參數(shù)資料
| 型號(hào)： | MT88L89 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3V Integrated DTMF Transceiver with Adaptive Micro Interface(3V 集成雙音多頻信號(hào)（DTMF）接收器（帶自適應(yīng)微接口）) |
| 中文描述： | 3V的雙音多頻收發(fā)器集成自適應(yīng)微型接口（3V的集成雙音多頻信號(hào)（DTMF）的接收器（帶自適應(yīng)微接口）） |
| 文件頁(yè)數(shù)： | 19/28頁(yè) |
| 文件大小： | 210K |
| 代理商： | MT88L89 |
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MT88L89
4-141
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
12)
Operation of microprocessor interface requires that t
CL
+ t
CH
≥
1000ns
13)
For Unity Gain Configuration
Figure 16 - Digital Signal Input Rise/Fall Times
AC Electrical Characteristics
- MPU Interface
- Voltages are with respect to ground (V
SS
), unless otherwise stated.
Characteristics
Sym
Min
Typ
Max
Units
Conditions
1
RD/WR low pulse width
t
CL
200
400
ns
Figure 16, Note 12
t
CL
+ t
CH
≥
1000ns
Figure 16, Note 12
t
CL
+ t
CH
≥
1000ns
Figure 16
2
DS high pulse width
t
CH
200
400
ns
3
Rise and fall time all digital inputs
t
R,
t
F
t
RWS
t
RWH
t
AS
t
AH
t
DHR
t
DDR
t
DSW
t
DHW
t
CSS
t
CSH
t
RDS,
t
DSS
20
ns
4
R/W setup time
23
ns
Figures 17
5
R/W hold time
26
ns
Figures 17
6
Address setup time (RS0)
0
ns
Figures 17 - 19
7
Address hold time (RS0)
45
ns
Figures 17 - 19
8
Data hold time (read)
22
ns
Figures 17 - 18
9
DS/RD to valid data delay (read)
125
ns
Figures 17 - 18
10
Data setup time (write)
60
ns
Figures 17, 19
11
Data hold time (write)
10
ns
Figures 17, 19
12
Chip select setup time
45
ns
Figures 17 - 19
13
Chip select hold time
10
ns
Figures 17 - 19
14
DS/RD set up time prior to CS
assertion
20
ns
Figures 17, 19
t
R
All Digital Inputs
t
F
V
HM
V
LM
*V
HM
= 0.7V
DD
, V
LM
= 0.3V
DD
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MT88L89AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3V Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT88L89AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:3V Integrated DTMFTransceiver with Adaptive Micro Interface |
| MT88L89AN | 制造商:Microsemi Corporation 功能描述: |
| MT88L89AN1 | 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 3V 24SSOP - Rail/Tube |
| MT88L89ANR1 | 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 3V 24SSOP - Tape and Reel 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX DTMF 3V 24SSOP 制造商:Microsemi Corporation 功能描述:IC TXRX DTMF 3V 24SSOP |
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