參數(shù)資料
型號: T2803-PLS
廠商: ATMEL CORP
元件分類: 無繩電話/電話
英文描述: SPST to 4PST Slide DIP Switches
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC48
封裝: 7 X 7 MM, MO-220, QFN-48
文件頁數(shù): 15/27頁
文件大?。?/td> 501K
代理商: T2803-PLS
15
T2803 [Preliminary]
4572G–DECT–01/04
The following table shows the LO frequencies for RX and TX for the DECT band plus additional channels for the extended
DECT band. Intermediate frequencies of 110.592 MHz and 112.32 MHz are supported.
Table 2.
LO Frequencies
Mode
Formula
TX:
RX:
f
ANT
= f
VCO
= 864 kHz
×
(32
×
S
MC
+ S
SC
)
f
ANT
= 864 kHz
×
(32
×
S
MC
+ S
SC
) + f
IF
Control Signals
Table 3.
Control Signals — Functions
Signal
f
IF
/MHz
Channel
f
ANT
/MHz
2401.056
f
VCO
/MHz
2401.056
S
MC
86
S
SC
27
N
TX
C0
2779
C1
2401.920
2401.920
86
28
2780
...
...
...
...
...
...
C93
2481.408
2481.408
89
24
2872
C94
2482.272
2482.272
89
25
2873
RX
110.592
(for 10.368 MHz REF_CLK
recommended)
C0
2401.056
2290.464
82
27
2651
C1
2401.920
2291.328
82
28
2652
...
...
...
...
...
...
C93
2481.408
2370.816
85
24
2744
C94
2482.272
2371.680
85
25
2745
RX
112.320
(for 13.824 MHz REF_CLK
recommended)
C0
2401.056
2288.736
82
25
2649
C1
2401.920
2289.600
82
26
2650
...
...
...
...
...
...
C93
2481.408
2369.088
85
22
2742
C94
2482.272
2369.952
85
23
2743
Functions
I_CPSW
Charge pump current control
PU_REG
Activates AUX voltage regulator supplying the complete transceiver
PU_RX/TX
Activates RX/TX blocks
PU_PLL
Activates PLL circuits: PC, PD, CP, RC, VCO
RX_ON
Activates RX circuits: BBF, DEMOD, IF AMP, IR MIXER
TX_ON
Activates TX circuits: TX-DRIVER, RAMP GEN, Starts RAMP SIGNAL at RAMP OUT
OLE
Activates open loop mode of the PLL
Data Word 1, Bit D0
Activates GF
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