SP5658 datasheet(6/14 Pages) MITEL

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SP5658

Fig. 3 Data format and timing

RATIO

Comparison Frequency with a 4MHz

external reference.

2MHz

1MHz

500kHz

250kHz

125kHz

62.5kHz

128

31.25kHz

256

15.625kHz

Table 1 Reference division ratios

CLOCK

ENABLE

16 PIN VARIANT

DATA

FREQUENCY DATA

2 27 2 26 2 25 2 24 2 23 2 22 2 21 2 20 2 19 2 18 2 17 2 16

2 0

TO OS CO R2

R0 DE

LSB

14 PIN VARIANT

DATA

FREQUENCY DATA

2 25 2 24 2 23 2 22 2 21 2 20 2 19 2 18 2 17 2 16

2 0

TO OS CO R2

R0 DE

LSB

CLOCK

ENABLE

DATA

ES =Enable set up time

=Data set up time

=Data hold time

=Clock–to–enable time

=Enable hold time

MSB IS TRANSMITTED

FIRST

0.7V

CE tES

0.7V

216 to 20

t : Programmable divider ratio control bits

t : Reference divider ratio control bits (see Table1)

P3, P2, P1, P0

t : Port control bits

t : Charge Pump current select (see Table 3)

t : Drive output disable switch

t : Test mode enable (see Table 2)

MSB

- 2 Prescaler (Enable = 1, Disable = 0)

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