Datasheet

MT8870D/MT8870D-1 Data Sheet
7
Zarlink Semiconductor Inc.
Figure 6 - Differential Input Configuration
Figure 7 - Oscillator Connection
C
1
R
1
C
2
R
4
R
3
IN+
IN-
+
-
R
5
GS
R
2
V
Ref
MT8870D/
MT8870D-1
Differential Input Amplifier
C
1
=C
2
=10 nF
R
1
=R
4
=R
5
=100 kΩ
R
2
=60kΩ, R
3
=37.5 kΩ
All resistors are ±1% tolerance.
All capacitors are ±5% tolerance.
R
3
=
R
2
R
5
R
2
+R
5
VOLTAGE GAIN (A
v
diff)=
R
5
R
1
INPUT IMPEDANCE
(Z
INDIFF
) = 2
R
1
2
+
1
ωc
2
OSC1
OSC2
OSC2
OSC1
C
X-tal
C
To OSC1 of next
MT8870D/MT8870D-1
C=30 pF
X-tal=3.579545 MHz