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WE2408

2.4GHz Single Chip FM Transceiver

Unspecified 

WiNEDGE & WiRELESS

Winceiver WE2408

2.4GHz Single Chip FM Transceiver

PARAMETER

Transmitter

Transmitter Output Power 6

Spur Level: LO

LO x 2

LO x 4

LO x 5

TX x 2

Modulation Input Level 7

Modulator Input Impedance

Output Impedance (across RFO pins)

Modulation S/N 8

Intermodulation Prod. (2*RxLO-TxLO)

Intermodulation Prod. (Other)

Phase Noise (10kHz Offset)

Phase Noise (10MHz Offset)

Response Time

RSSI Settling Time

Rx PLL Lock Time 9 : Start Up

Adjacent Channel

Audio/Data Response Time 11

(from PLL locked to signal appears on AFO pin)

Tx PLL Lock Time 9 : Start Up

Adjacent Channel

MIN

TYP

MAX

-4

-2

0

-70

-60

-63

-55

-63

-55

-84

-70

-90

-80

160

1

2

-19://1pF

38

40

45

-58

60

-75

-70

-110

0.5

1.0

2

1.4

1

2

8

5

UNITS

dBm

dBc

dBc

dBc

dBc

dBc

mVrms

k:

dB

dBc

dBc

dBc/Hz

dBc/Hz

ms

ms

ms

ms

ms

ms

1 CCITT receive audio filter

2 57.6kbps 511 PRBS, Data mode

3 AGC off; receiver gain maximum

4 AGC on or receiver gain minimum

5 Bandwidth can be adjusted between 12kHz and 160kHz by external components

6 Transmitter output power can be adjusted via an external bias resistor

7 Input level to obtain 40kHz FM deviation. This input level is TPLL setting dependant

8 Measured with 300Hz HPF, 3kHz LPF and 750us de-emphasis

9 Lock time adjustable by PLL loop filters. Tx Charge Pump: 0.2mA; Rx Charge Pump: 1.0mA

10 With varactor capacitance varies from 25pF(0.1V) to 10pF (2.5V). Refer to section on AFC

11 Shorter time can be achieved by reducing DCI/DCQ capacitors.

© 2003 WiNEDGE & WiRELESS PTE LTD

Rev Date: 2003 May 23

Page 11

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