WE2408 データシートの表示（PDF） - Unspecified
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WE2408 Datasheet PDF : 36 Pages
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WiNEDGE & WiRELESS
Winceiver WE2408
2.4GHz Single Chip FM Transceiver
PIN DESCRIPTIONS
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
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