MAX1464 Datasheet, PDF (40/47 Pages) Maxim Integrated Products – Low-Power, Low-Noise Multichannel Sensor Signal Processor

Low-Power, Low-Noise Multichannel
Sensor Signal Processor
Table 34. Oscillator Control (Address = 32h)
BITS
15–13
12–8
7–6
NAME
—
OSC[4:0]
—
DESCRIPTION
Unused.
Oscillator trim setting. OSC[4] = MSB.
Unused.
5–4
—
Reserved 0.
3–1
—
Unused.
Enable clock output: 1 = enable
0
ENCKOUT internal clock output on CKIO based
on CKSEL inputs, 0 = disable.
Table 35. Oscillator Trim Settings
(Two’s Complement)
OSC[4:0]
BINARY
01111
01110
01101
01100
01011
01010
01001
01000
00111
00110
00101
00100
00011
00010
00001
00000
11111
11110
11101
11100
11011
11010
11001
11000
10111
10110
10101
10100
10011
10010
10001
10000
DECIMAL
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
% CHANGE FROM NOMINAL
CLOCK FREQUENCY (%)
+43.7
+42.2
+40.1
+38.4
+35.2
+32.8
+28.8
+25.5
+17.7
+14.1
+10.0
+8.4
+5.4
+3.6
+1.4
0
-3.4
-4.9
-7.2
-9.1
-12.6
-15.1
-18.5
-21.0
-25.3
-27.2
-29.9
-32.1
-35.8
-38.1
-40.9
-43.0
Table 36. Internal Oscillator and CKIO
Control
ENCKOUT
CKSEL
(PIN)
CKIO
DESCRIPTION
Internal oscillator is
X
0
Input
halted. An external clock
must be supplied to
CKIO pin.
0
1
High
impedance
Internal oscillator is
running. CKIO output
driver is disabled.
Internal oscillator is
1
1
Output
running. CKIO output
driver is enabled driving
clock output.
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