DS1085 Dallas Semiconductor, DS1085 Datasheet - Page 6

• Manufacturer Part Number: DS1085
• Description: EconOscillator Frequency Synthesizer
• Manufacturer: Dallas Semiconductor

Table 6. FREQUENCY vs. OFFSET
*OS is the OFFSET default setting. OS is the integer value of the five MSBs of RANGE register.
These ranges include values outside the oscillator range of 66MHz to 133MHz. When using these ranges,
values of DAC must be chosen to keep the oscillator within range. Correct operation of the device is not
guaranteed outside the range 66MHz to 133MHz.
MUX WORD
The MUX word controls several functions. Its bits are organized as follows:
*This bit must be set to zero.
X = Don’t care.
NAME * PDN1 PDN0 SEL0
Default
Setting
MSB
0
OFFSET
OS - 10
OS + 1
OS + 2
OS + 3
OS + 4
OS + 5
OS + 6
OS - 9
OS - 8
OS - 7
OS - 6
OS - 5
OS - 4
OS - 3
OS - 2
OS - 1
OS*
0
(Address 02h)
0
FREQUENCY
102.3 to 112.6
107.5 to 117.7
112.6 to 122.8
117.7 to 127.9
122.8 to 133.1
DS1085Z-10
92.1 to 102.3
97.2 to 107.5
61.4 to 71.6
66.5 to 76.8
71.6 to 81.9
76.7 to 87.0
81.9 to 92.1
87.0 to 97.2
RANGE
1
—
—
—
—
EN0
1
0M1
0
FREQUENCY
6 of 21
102.4 to 128.0
108.8 to 134.4
115.2 to 140.8
121.6 to 147.2
128.0 to 153.6
DS1085Z-25
76.8 to 102.4
83.2 to 108.8
89.6 to 115.2
96.0 to 121.6
51.2 to 76.8
57.6 to 83.2
64.0 to 89.6
70.4 to 96.0
RANGE
0M0
0
—
—
—
—
1M1
LSB
0
MSB
1M0
0
FREQUENCY
102.4 to 153.6
108.8 to 160.0
115.2 to 166.4
DS1085Z-50
51.2 to 102.4
57.6 to 108.8
64.0 to 115.2
70.4 to 121.6
76.8 to 128.0
83.2 to 134.4
89.6 to 140.8
96.0 to 147.2
38.4 to 89.6
44.8 to 96.0
DIV1 – – – – – –
RANGE
0
—
—
—
—
X X X X X X
LSB