mt8888csr1 Zarlink Semiconductor, mt8888csr1 Datasheet - Page 15
mt8888csr1
Manufacturer Part Number
mt8888csr1
Description
Integrated Dtmf Transceiver With Intel Micro Interface
Manufacturer
Zarlink Semiconductor
Datasheet
1.MT8888CSR1.pdf
(25 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MT8888CSR1
Manufacturer:
ZARLINK
Quantity:
427
Notes:
R1, R2 = 100 kΩ 1%
R3 = 374 kΩ 1%
R4 = 3.3 kΩ 10%
R5 = 4.7 MΩ 10%
R
C1 = 100 nF 5%
C2 = 100 nF 5%
C3 = 100 nF 10%*
C4 = 10 nF 10%
X-tal = 3.579545 MHz
L
DTMF/CP
INPUT
= 10 k Ω (min.)
DTMF
OUTPUT
C1
Figure 14 - MT8888C Interface Connections for Various Intel Micros
R1
C4
R5
Figure 15 - Application Circuit (Single-Ended Input)
8031/8051
8080/8085
R
X-tal
R2
L
A8-A15
WR
PO
RD
* Microprocessor based systems can inject undesirable noise into the supply rails.
The performance of the MT8888C 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.
Zarlink Semiconductor Inc.
A8
MT8888C
IN+
IN-
GS
VRef
VSS
OSC1
OSC2
TONE
WR
CS
MT8880C
15
IRQ/CP
St/GT
VDD
RS0
ESt
RD
D3
D2
D1
D0
CS
RS0
D0-D3
RD
WR
MT8888C
R3
C2
V
DD
R4
C3
Data Sheet
To µP
or µC