Integrated circuits inc. ap8942a – Rainbow Electronics aP8942A User Manual
Page 16
Integrated Circuits Inc. aP8942A
Ver 2.0 Dec 6, 2006
16
OSCILLATOR RESISTANCE TABLE
Sampling Frequency
R
OSC
R
OSC
Sampling Frequency
KHz
KΩ
KΩ
KHz
22
83
400
5.4
18
108
370
5.9
16
125
350
6.3
15
134
330
6.5
13
158
300
7.0
12
168
280
7.6
11
183
250
8.5
10
202
220
9.5
9
227
200
10.3
8
252
170
11.9
7
296
150
13.8
6
344
120
16.5
100
19.3
91
20.5
82
22.4
Note: The data in the above tables are within 3% accuracy and measured at V
DD
= 4.5V. Oscillator
frequency is subjected to IC lot to lot variation.
FREQUENCY AGAINST VDD STABILITY
a P8 9 2 1 A Fre q e n c y St a b i l i t y (R o sc = 2 9 3 K Oh m )
-30.0%
-25.0%
-20.0%
-15.0%
-10.0%
-5.0%
0.0%
5.0%
10.0%
5.50 5.00 4.50 4.00 3.50 3.00 2.60
VDD (V)
△
F
(%
)