Rainbow Electronics DS1087L - Manual (Page 7)

DS1087L
3.3V Spread-Spectrum EconOscillator
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Pin Description
PIN NAME FUNCTION
1 OUT Oscillator Output
2 SPRD Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled.
3 V CC Power Supply
4 GND Ground
5 OE
Output Enable. When the pin is high, the output buffer is enabled. When the pin is low, the output is
disabled but the internal master oscillator is still on.
6 PDN
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).
7 SDA 2-Wire Serial Data. This pin is for serial data transfer to and from the device.
8 SCL 2-Wire Serial Clock. This pin is used to clock data into and out of the device.
Figure 1. Functional Diagram
SDA
SCL
2-WIRE
INTERFACE
V CC EEPROM CONTROL
REGISTERS
PRESCALER
ADDR
SPRD
PDN
OUT
OE
TRIANGLE WAVE
GENERATOR
FACTORY-PROGRAMMED
OSCILLATOR
PRESCALER
BY 1, 2, 4...256
GND
MASTER
OSCILLATOR
OUTPUT
DITHER SIGNAL
DITHER
CONTROL
DS1087L