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PDF WE2408 Data sheet ( Hoja de datos )
| Número de pieza | WE2408 | |
| Descripción | 2.4GHz Single Chip FM Transceiver | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de WE2408 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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WiNEDGEwww.DataSheet4U.com & WiRELESS
Winceiver WE2408
2.4GHz Single Chip FM Transceiver
FEATURES
x 2.4GHz Operating Frequency
x 2.7 - 3.3V Operation
x -2 dBm Tx Output Power
x -99 dBm Rx Sensitivity
x Full Duplex
x Dual VCO
x FM/FSK Modulator
x No Tuning "Tankless" FM Demodulator
x Direct-Conversion, Zero-IF Architecture
x Low External Component Count
x Serial Programming Interface
x Low Standby Current
x Thin-Quad Flat Package (TQFP-48)
DESCRIPTION
WE2408 are single-chip FM/FSK transceiver ICs operate in 2.4GHz ISM band. Utilizing a unique
direct-conversion, zero-intermediate frequency (zero-IF) receiver architecture, WE2408 provides radio
designers a high performance RF transceiver solution with low external component count and small
PCB footprint.
The receiver section of the WE2408 provides all of the required receiver functions including local
oscillator synthesis (VCO), down-conversion, filtering, automatic gain control (AGC), automatic
frequency control (AFC), FM/FSK demodulator and RSSI functions.
The transmitter section contains a directly modulated VCO and RF power amplifier (PA).
Internal, dual, high-performance phase locked loop (PLL) synthesizers/VCOs allow full duplex or half-
duplex operation over the entire RF tuning range. Tuning, power management, and gain control
(manual) functions are accomplished via serial interface.
APPLICATIONS
x 2.4G Wireless Voice/Data Products
x 2.4GHz Cordless Phones
x AMR/Telemetry/Data Radios
Winceiver and WE2408 are trademarks of WiNEDGE & WiRELESS Pte Ltd
WiNEDGE & WiRELESS PTE LTD
TECHplace 1, Blk 4010, #04-12, Ang Mo Kio Ave 10, Singapore 569626
Tel: (65) 6455 4371 Fax: (65) 6455 6811
Email: [email protected]
Website: www.winedge.com
1 page  
WiNEDGE & WiRELESS
www.DataSheet4U.com
PIN DESCRIPTIONS
Winceiver WE2408
2.4GHz Single Chip FM Transceiver
Name
LE
DATA
CLK
VSS
OSCI
OSCO
VDD
VDDO
RFO
RFO
VSSO
VSST
TPLL
VDDT1,2
TVCO
TVCO
GCC
DCR
DCI, DCQ
IFIL1,2,3
BBSET
QFIL1,2,3
PFGND
VDDA
VSSA
VDDI
RFI
RFI
VSSI
RSSI
SUBS
VSSR
RPLL
VDDR1,2
RVCO
RVCO
IFSET
ACGND
AFC
AFCC
AUDO
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14, 17
15
16
18
19
21
23, 24, 22
25
27, 26, 28
29
30
31
32
34
33
35
36
37
38
39
40, 43
41
42
44
45
46
47
48
Description
Load Enable. Active high CMOS logic compatible input
Serial Data. CMOS logic compatible serial data input
Serial Clock: CMOS logic compatible, positive edge trigger input
Digital ground. Ground pin for the internal CMOS digital circuitry
Reference Oscillator Input. Signal level should be within the range of 200-
400mV peak
Reference Oscillator Output. Used in conjunction with OSCI to form a Colpitts
oscillator using a crystal unit
Power supply for the internal CMOS digital circuitry
Power supply for Tx output section (PA)
Differential Tx Outputs
Ground for Tx output section
Ground for Tx VCO
Tx PLL control voltage. Connection point for PLL loop filter.
Tx power supply pins for the internal Tx VCO
Tx VCO Tank; establishes the natural oscillation frequency of the Tx VCO
with external balanced inductors
Gain control decoupling capacitor
DC Offset for RSSI
DC Offset for I and Q sections of the baseband circuit
Baseband In-phase (I) Filter
Baseband low pass filter frequency set resistor
Baseband Quadrature (Q) Filter
Internal Pre-Filter ground reference
Power supply for Baseband and IF filters
Ground for Baseband and IF filters
Power supply for Rx Input section
Differential Rx Inputs
Ground for Rx Input section
Receive Signal Strength Indicator output
Ground to silicon substrate
Ground for Rx VCO
Rx PLL control voltage. Connection point for PLL loop filter.
Power supply for Rx VCO
Rx VCO Tank:: establishes the natural oscillation frequency of the Rx VCO
with external balanced inductors.
IF low pass filter frequency set resistor
Internal AC ground reference for the baseband and IF filters
Automatic Frequency Control Voltage Output
Automatic Frequency Control Capacitor
Rx Audio/ Digital Output
© 2003 WiNEDGE & WiRELESS PTE LTD
Rev Date: 2003 May 23
Page 5
5 Page 
WiNEDGE & WiRELESS
www.DataSheet4U.com
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
12
-19://1pF
38 40 45
-58
60
-75 -70
-110
0.5 1.0
2
1.4
12
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
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet WE2408.PDF ] | |
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