SP8852EKGHCAR Ver la hoja de datos (PDF) - Zarlink Semiconductor Inc

Número de pieza

componentes Descripción

Fabricante

SP8852EKGHCAR

2·7GHz Parallel Load Professional Synthesiser

Zarlink Semiconductor Inc 

SP8852E

INPUT

VCC

40k 40k 5k 5k

50µA

0V

Fig. 7a 16-bit input bus, strobe and address

C-LOCK DETECT

(HIGH WHEN LOCKED)

18

3k 3k

VCC

VREF

4·7V

4k

325

VCC

325

13

RF INPUT

14

RF INPUT

500 500

3mA

3k

0V

Fig. 7b RF inputs

VCC

2·5k 2·5k

LOCK DETECT OUTPUT

(LOW WHEN LOCKED)

17

3k

3k

20µA

100µA

0V

Fig. 7c Lock detect decouple

RSET

19

VCC

CHARGE PUMP

CURRENT SOURCES

130

0V

Fig. 7e RSET pin

400µA

100

100 1k 1k

0V

Fig. 7d Lock detect output

VCC

450

450

f UP

f UP

f DN

83

83

VCC

20

OUTPUT

21

REFERENCE

f DN

2mA

0V

Fig. 7f Charge pump circuit

Fig 7 Interface circuit diagrams

8

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