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參數(shù)資料
| 型號： | MT8888CE1 |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 信令電路 |
| 英文描述： | Integrated DTMF Transceiver with Intel Micro Interface |
| 中文描述： | TELECOM, DTMF SIGNALING CIRCUIT, PDIP20 |
| 封裝： | LEAD FREE, PLASTIC, MS-001AD, DIP-20 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大?。?/td> | 536K |
| 代理商： | MT8888CE1 |
MT8888C
Data Sheet
21
Zarlink Semiconductor Inc.
Characteristics are over recommended operating conditions unless otherwise stated
Typical figures are at 25
°
C, V
DD
=5 V, and for design aid only: not guaranteed and not subject to production testing
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
dBm=decibels above or below a reference power of 1 mW into a 600 ohm load.
Digit sequence consists of all 16 DTMF tones.
Tone duration=40 ms. Tone pause=40 ms.
Nominal DTMF frequencies are used.
Both tones in the composite signal have an equal amplitude.
The tone pair is deviated by
±
1.5%
±
2 Hz.
Bandwidth limited (3 kHz) Gaussian noise.
The precise dial tone frequencies are 350 and 440 Hz (
±
2%).
Guaranteed by design and characterization. Not subject to production testing.
Referenced to the lowest amplitude tone in the DTMF signal.
For guard time calculation purposes.
Figure 18 - RD/WR Clock Pulse
Figure 19 - 8031/8051/8085 Read Timing Diagram
Figure 20 - 8031/8051/8085 Write Timing Diagram
13
Output Capacitance (IRQ/CP)
C
OUT
5
pF
AC Electrical Characteristics
- MPU Interface (continued)-
Voltages are with respect to ground (V
SS
), unless otherwise
Characteristics
Sym.
Min.
Typ.
Max.
Units
Conditions
t
CYC
t
R
t
PWH
t
PWL
RD/WR
t
F
RD
CS, RS0
DATA BUS
t
PWL
t
AS
t
AH
t
PWH
t
DDR
t
DHR
WR
CS, RS0
DATA BUS
t
PWL
t
AS
t
AH
t
PWH
t
DSW
t
DHW
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT8888CE-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated DTMFTransceiver with Intel Micro Interface |
| MT8888CN | 制造商:Microsemi Corporation 功能描述: |
| MT8888CN1 | 制造商:Microsemi Corporation 功能描述: 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 5V 24SSOP - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX DTMF 24SSOP 制造商:Microsemi Corporation 功能描述:IC TXRX DTMF 24SSOP |
| MT8888CN-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated DTMFTransceiver with Intel Micro Interface |
| MT8888CP | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Integrated DTMF Transceiver with Intel Micro Interface |
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