CDP6872E INTERSIL [Intersil Corporation], CDP6872E Datasheet - Page 2

• Manufacturer Part Number: CDP6872E
• Description: Low Power Crystal Oscillator
• Manufacturer: INTERSIL [Intersil Corporation]

ENABLE
Simplified Block Diagram
NOTE:
FREQ 1
FREQ 2
1. Logic input pull-up resistors are constant current source of 0.4 A.
6
7
V
V
V
V
ENABLE
8
DD
DD
DD
DD
V
V
- 1.4V
- 2.2V
- 3.0V
- 3.8V
1
1
1
1
0
DD
DD
1
I
BIAS
V
(NOTE 1)
V
DD
DD
(NOTE 1)
(NOTE 1)
DECODE
1 OF 4
FREQ 1
S1a
1
1
0
0
X
S2
S3
S4
FREQUENCY SELECTION TRUTH TABLE
V
RN
BUFFER AMP
15pF
+
-
OSC IN 2
FREQ 2
CDP6872
S1b
X
EXTERNAL CRYSTAL
1
0
1
0
2
R
V
DD
F
R
F
3 OSC OUT
IN
S1c
P
SWITCH
S1a, b, c
OSCILLATOR
15pF
S2
S3
S4
X
P
N
V
RN
V
V
V
DD
DD
RN
OUT
10kHz - 100kHz
100kHz - 1MHz
1MHz - 5MHz
5MHz - 10MHz+
High Impedance
OUTPUT RANGE
SHIFTER
LEVEL
4
V
V
DD
SS
BUFFER
OUTPUT
5