SP8782 Zarlink Semiconductor, SP8782 Datasheet
SP8782
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SP8782 Summary of contents
Page 1
... Available as DESC SMD 5962-9208901MPA • Description The SP8782 is a multi-modulus divider which divides by 16/ 17 when the Ratio Select input is low and by 32/33 when theRatio Select input is high. When high, the modulus Control input selects the lower division ratio (16 or 32) and the higher ratio (17 or 33) when it is low ...
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... Unless otherwise stated, the Electrical Characteristics are guaranteed over the specified supply, frequency and temperature range. , Supply Voltage V = +4V to +5.5V Temperature T amb = - +125 C, (SP8782A), - +85 C (SP8782B) Characteristic Maximum frequency (sinewave input) Minimum frequency Min Slew rate for low frequency operation Power Supply current, I ...
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... CONTROL INPUT 8 (16) OUTPUT Figure 3b Setting divide - (33 mode) Figure 3 Timing diagrams Ratio select input DON’T CARE 8 (16) 8 (16) 8 (16) DIVIDE-BY-16 (32) MODE ESTABLISHED t r DON’T CARE 9 (17) 8 (16) 8 (16) EXTRA PULSE DIVIDE-BY-17 (33) MODE ESTABLISHED SP8782A & ...
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... SP8782A & B 1600 1400 1200 1000 800 600 400 200 0 0 200 MODULUS CONTROL INPUT CLOCK INPUT NOTES 1. Pin 6 is grounded to improve isolation between the output and the NOTES modulus control input. 2. The 3k resistor on pin 5 reduces 1. Pin 6 is grounded to improve the amplitude of the modulus control isolation between the output and signal to minimise radiation ...
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... Figure 6 Typical input impedance. Test conditions: supply voltage =5V, ambient temperature =25 C, frequencies in MHz, impedances normalised 0 1100 0 1000 800 400 600 0 SP8782A & 200 5 ...