DS1086LU-B66+T Maxim Integrated Products, DS1086LU-B66+T Datasheet - Page 8

• Manufacturer Part Number: DS1086LU-B66+T
• Description: IC ECONOSILL 3.3V SS 8-USOP
• Manufacturer: Maxim Integrated Products
• Series: EconOscillator™r
• Type: Spread Spectrum Clock Generatorr

Specifications of DS1086LU-B66+T

• Pll: No
• Input: Clock
• Output: Clock
• Number Of Circuits: 1
• Ratio - Input:output: 2:1
• Differential - Input:output: No/No
• Divider/multiplier: Yes/No
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency-max: -

3.3V Spread-Spectrum EconOscillator
Figure 1. Clock Spectrum Dither Comparison
8
DITHERED 260kHz TO
_______________________________________________________________________________________
133MHz OUTPUT
DECOUPLING CAPACITORS
PIN
1
2
3
4
5
6
7
8
(0.1μF and 0.01μF)
V
CC
-10
-20
-30
-40
-50
-60
-70
-80
-90
Processor-Controlled Mode
0
43
OUT
SPRD
V
GND
NAME
CC
SPRD
OUT
GND
PDN
SDA
V
SCL
OE
CC
(12OkHz BW, SAMPLE DETECT)
SPECTRUM COMPARISON
45
DS1086L
8%
FREQUENCY (MHz)
Oscillator Output. The output frequency is determined by the OFFSET, DAC, and prescaler registers.
Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled.
Power Supply
Ground
Output Enable. When the pin is high, the output buffer is enabled. When the pin is low, the output is
disabled but the master oscillator is still on.
Power-Down. When the pin is high, the master oscillator is enabled. When the pin is low, the master
oscillator is disabled (power-down mode).
2-Wire Serial Data. This pin is for serial data transfer to and from the device. The pin is open drain and
can be wire-ORed with other open-drain or open-collector interfaces.
2-Wire Serial Clock. This pin is used to clock data into the device on rising edges and clock data out on
falling edges.
2%
47
fo = 50MHz
DITHER RATE = fo/4096
0.5%
SDA
PDN
SCL
OE
49
4.7kΩ
V
V
CC
CC
51
NO
SPREAD
4.7kΩ
53
2-WIRE
INTERFACE
Figure 2. Temperature Variation Over Frequency
*SDA AND SCL CAN BE CONNECTED DIRECTLY HIGH IF THE DS1086L NEVER NEEDS
TO BE PROGRAMMED IN-CIRCUIT, INCLUDING DURING PRODUCTION TESTING.
FUNCTION
XTL1/OSC1
XTL2/OSC2
μP
-1%
-2%
-3%
-4%
-5%
3%
2%
1%
0
DITHERED 130kHz TO
33
66.6MHz OUTPUT
DECOUPLING CAPACITORS
N.C.
MAXIMUM THERMAL VARIATION vs.
MASTER OSCILLATOR FREQUENCY
(0.1μF and 0.01μF)
36 39 42
V
CC
MASTER FREQUENCY (MHz)
Stand-Alone Mode
OUT
SPRD
V
GND
45
CC
48 51 54
Pin Description
DS1086L
57
60
SCL*
SDA*
PDN
63
OE
66
V
CC