RF109 Ver la hoja de datos (PDF) - Conexant Systems

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RF109

2400 MHz Digital Spread Spectrum Transceiver

Conexant Systems 

2400 MHz Digital Spread Spectrum Transceiver

Table 2. RF109 Pin Signal Description (2 of 2)

Pin

Signal Type

Description

Miscellaneous

20

MODSET

— Modulator Gain Setting. Transmit modulator gain can be adjusted by the resistor connected to the pin.

13

GMCRES

— GMC resistor to set the cutoff frequency of the baseband filter.

19

MIXBPC

— Mixer bias bypass capacitor.

32

SRQ-

33

SRQ+

— Q channel DC offset cancellation servo capacitor connections.

34

SRI-

35

SRI+

1, 12, 36, 37, NC

40, 41, 42,

48

— I channel DC offset cancellation servo capacitor connections.

— No Connect. It is recommended to connect these pins to ground.

Power Supply Terminals

6

VCC1

Supply Positive supply terminal.

7

VCC2

Supply Positive supply terminal.

25

VCC3

Supply Positive supply terminal.

31

VCC4

Supply Positive supply terminal.

44

45

14, 17, 30

VCC5

VCC6

GND

Supply

Supply

Supply

Positive supply terminal.

Positive supply terminal.

Power supply ground terminal.

Notes:

1. All digital signals are CMOS compatible.

RF109

100646A

Conexant

7

1/19/00

Conexant Proprietary

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