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MT88L85AE 参数 Datasheet PDF下载

MT88L85AE图片预览
型号: MT88L85AE
PDF下载: 下载PDF文件 查看货源
内容描述: 3V集成DTMFTransceiver与关机及自适应微型接口 [3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface]
分类和应用: 电信集成电路光电二极管
文件页数/大小: 20 页 / 354 K
品牌: MITEL [ MITEL NETWORKS CORPORATION ]
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MT88L85
Advance Information
V
DD
MT88L85
C1
DTMF/CP
INPUT
R2
R1
IN+
IN-
GS
VRef
VSS
X-tal
OSC1
OSC2
NC
NC
DTMF
OUTPUT
R
L
TONE
R/W/WR
CS
VDD
St/GT
ESt
D3
D2
D1
D0
NC
PWDN
IRQ/CP
DS/RD
RS0
To
µP
or
µC
R3
C2
R4
C3
Notes:
R1, R2 = 100 kΩ 1%
R3 = 374
1%
R4 = 3.3 kΩ 10%
R
L
= 10 k
(min.)
C1 = 100 nF 5%
C2 = 100 nF 5%
C3 = 100 nF 10%*
X-tal = 3.579545 MHz
* Microprocessor based systems can inject undesirable noise into the supply rails.
The performance of the MT88L85 can be optimized by keeping
noise on the supply rails to a minimum. The decoupling capacitor (C3) should be
connected close to the device and ground loops should be avoided.
Figure 13 - Application Circuit (Single-Ended Input)
4-82