DS1085LZ-25B2 Maxim Integrated, DS1085LZ-25B2 Datasheet - Page 8

• Manufacturer Part Number: DS1085LZ-25B2
• Description: Programmable Oscillators
• Manufacturer: Maxim Integrated
• Series: DS1085r

Specifications of DS1085LZ-25B2

• Part # Aliases: 90-1085Z-L2B

Table 7a. PRESCALER P0 DIVISOR M SETTINGS
*Factory Default Setting
Table 7b. PRESCALER P1 DIVISOR M SETTINGS
*Factory Default Setting
NOTE:
When EN0 = SEL0 = PDN0 = 0, CTRL0 also functions as a power-down. This is a special case for
situations when OUT0 is not used. Under these conditions all the circuitry associated with OUT0 is
powered down. OUT0 is powered down (see Table 2).
PDN1 (Default Setting = 0)
If PDN1 = 1, CTRL1 functions as a power-down (see Table 3).
NOTES FOR OUTPUT ENABLE AND POWER-DOWN:
1) Both enables are “smart” and wait for the output to be low before going High-Z.
2) A power-down sequence first disables both outputs before powering down the device.
3) On power-up, the outputs are disabled until the clock has stabilized (~8000 cycles).
4) In power-down mode the device cannot be programmed.
5) A power-down command must persist for at least two cycles of the lowest output frequency plus
DIV WORD (N)
MSB
N9
X = Don’t care.
0M1
1M1
10µs.
0
0
1
1
0
0
1
1
N8
· If PDN1 = 0, CTRL1 functions as an output enable for OUT1 (see Table 3).
0M0
1M0
N7
0
1
0
1
0
1
0
1
First Data Byte
N6
(Address 01h)
PRESCALER P0
PRESCALER P1
DIVISOR “M”
DIVISOR “M”
N5
1*
1*
2
4
8
2
4
8
N4
N3
LSB
N2
8 of 21
MSB
N1
N0
X
Second Data Byte
X
X
X
X
LSB
X