SP8861 Ver la hoja de datos (PDF) - Mitel Networks

Número de pieza

componentes Descripción

Fabricante

SP8861

1·3GHz Low Power Single-Chip Frequency Synthesiser

Mitel Networks 

SP8861

13·25k 1250

VCC1

1250

VCC4

6k 6k 62·5k

10

RF INPUT

11

RF INPUT

500 500

10k

0·8mA

VEE1

Fig. 8a RF preamplifer inputs

3, 14, 6

50µA

37·5k

VEE4

Fig. 8b F1/F2 data and

power down inputs

12k 12k

VCC4

15, 16 24k

77·5k

176k

50µA

27·5µA

VEE4

Fig. 8c Hysteresis inputs, data clock

and enable

24k

20

21

100µA

VCC2

50µA

VEE2

Fig. 8d Oscillator pins

VCC3

80k

27

35k

VEE3

Fig. 8e Lock detect output

VCC4 (CP1) / VCC3 (CP2)

f UP

VEE

VCC

f DOWN

f UP

3, 25

f DOWN

VEE4 (CP1) / VEE3 (CP2)

Fig. 8f Phase detector charge pumps

10k

VCC3

EXTERNAL RPD

RESISTOR (See Table 1)

24

FROM M OR R

COUNTERS

VCC4

VEE3

Fig. 8g Charge pump 2 current

programming

4, 5

OUTPUT

ENABLE

100µA

50µA

VEE4

Fig. 8h FPD and FREF outputs

Fig. 8 Input and output interface diagrams

8

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