RF109 데이터 시트보기 (PDF) - Conexant Systems
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RF109 Datasheet PDF : 12 Pages
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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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