RF109 datasheet(8/12 Pages) CONEXANT

8 / 12 page

RF109

2400 MHz Digital Spread Spectrum Transceiver

Conexant

100646A

Conexant Proprietary

1/19/00

Specifications

Table 3. Electrical Specifications(1) (1 of 3)

Note: TA = 25oC, VCC = 3.6 V, fLO= 2449.8 MHz

Parameter

Min

Typical

Max

Units

Receiver Section

RX voltage gain:

LNA high-gain mode (LNAATTN = 0)

GC = 1.35 V

GC = 1.65 V

GC = 1.9 V

94.5

100

105.5

LNA gain step

delta Gain LNAATTN = 0/1

RX gain variation vs. frequency

2400 MHz

< fLO < 2483.5 MHz

–1.5

0.5

2.0

RX SSB noise figure:

High-gain mode, GC = 1.35 V

RX input IP3:

LNA high-gain mode, GC = 1.9 V

LNA low-gain mode, GC = 1.9 V

–33

–3

dBm

RX input P1dB:

LNA high-gain mode (LNAATTN = 0)

GC = 1.35 V

GC = 1.65 V

GC = 1.9 V

LNA low-gain mode (LNAATTN = 1)

GC = 1.9 V

–90.5

–65

–36

–10

dBm

I/Q phase imbalance

±7

deg

I/Q amplitude imbalance

3dB

Input high voltage, LNAATTN, RXEN

VIH

1.9

Input low voltage, LNAATTN, RXEN

VIL

0.75

Input high current, RXEN

IIH

125

200

µA

Input low current , RXEN

IIL

–10

Input high current, LNAATTN

IIH

µA

Input low current, LNAATTN

IIL

–10

GC Iin

–500

500

µA

Baseband amplifier gain control range (GC = 1.35–1.9 V)

GC input voltage range

1.35

1.65

1.9

Baseband amplifier gain control sensitivity

GC = 1.35–1.9 V

GC = 1.35 V

GC = 1.65 V

GC = 1.90 V

0.14

0.01

0.15

0.13

0.17

dB/mV

RX P1dB @ 3.9 MHz offset

LNA high gain, GC=1.9V

–24

dBm

Baseband output load capacitance

Baseband LPF 3 dB bandwidth (Rgmc = 825

Ω)

650

820

970

kHz

Baseband selectivity @ 3.9 MHz

Baseband common mode output

1.0

Vcc – 1.55

Vcc – 1.0

Baseband I,Q DC offset

RXI, RXQ DC and gain settle time(2) from initial RXEN input

at TDD rate > 250 Hz

100

µs

Baseband HPF 3dB bandwidth (servo capacitors = 82 nF)

kHz

Baseband output voltage swing (peak differential)

250

mVp

Baseband output SNR (GC = 1.9 V)

RF109 Datasheet(PDF) 8 Page - Synaptics Incorporated.

RF109 Datasheet(HTML) 8 Page - Synaptics Incorporated.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL