mt8870dsr1-1 Zarlink Semiconductor, mt8870dsr1-1 Datasheet - Page 9

• Manufacturer Part Number: mt8870dsr1-1
• Description: Integrated Dtmf Receiver With Enhance Sensitivity
• Manufacturer: Zarlink Semiconductor

DTMF
Input
C
Figure 9 - Single-Ended Input Configuration for BT or CEPT Spec
1
X
1
R
R
1
2
IN+
IN-
GS
V
INH
PWDN
OSC 1
OSC 2
V
MT8870D/MT8870D-1
Ref
SS
MT8870D-1
V
DD
Zarlink Semiconductor Inc.
St/GT
TOE
V
ESt
StD
Q4
Q3
Q2
Q1
DD
9
R
C
3
2
NOTES:
R
R
R
C
X
V
1
DD
1
2
3
1
,C
= 3.579545 MHz ± 0.1%
= 102 KΩ ± 1%
= 71.5 KΩ ± 1%
= 390 KΩ ±1%
= 5.0 V ± 5%
2
= 100 nF ± 5%
Data Sheet