MT88L70
Data Sheet
Applications
A single-ended input configuration is shown in Figure 6. For applications with differential signal inputs the circuit
shown in Figure 5 may be used.
DTMF
Input
C1
R1
R2
X-tal
VDD
MT88L70
IN+
IN-
GS
VRef
INH
PDWN
OSC1
OSC2
VSS
VDD
St/GT
ESt
StD
Q4
Q3
Q2
Q1
TOE
C2
R3
NOTES:
R1, R2 = 100 kΩ ±1%
R3 = 300 kΩ ±1%
C1,C2 = 100 nF ±5%
X-tal = 3.579545 MHz ±0.1%
VDD = 3.0V + 20% / -10%
Figure 6 - Single-Ended Input Configuration
7
Zarlink Semiconductor Inc.