參數(shù)資料
型號: T2801-PLH
廠商: ATMEL CORP
元件分類: 無繩電話/電話
英文描述: DECT Single-Chip Transceiver
中文描述: TELECOM, CORDLESS, RF AND BASEBAND CIRCUIT, QCC48
封裝: MO-220, VFQFP-48
文件頁數(shù): 16/27頁
文件大?。?/td> 241K
代理商: T2801-PLH
T2801
Rev. A9, 11-Dec-01
Preliminary Information
16 (27)
Control Signals
Table 2
Signal
Function
I_CPSW
PU_REG
PU_VCO
PU_RX/TX
PU_PLL
RX_ON
TX_ON
Data Word 1
Bit D10
Data Word 1
Bit D9
Controls the charge pump current
Activates AUX voltage regulator supplying the complete transceiver.
Activates VCO voltage regulator which supplies only the VCO.
Activates RX/TX switch.
Activates PLL circuits: PC, PD, CP, RC
Activates RX circuits: BBF, DEMOD, IF AMP, IR MIXER
Activates TX circuits: TX-DRIVER, RAMP GEN. Starts RAMP SIGNAL at RAMP OUT.
Activates GF in TX mode.
Activates MCC in TX mode.
Table 3
Mode
TX Mode
1
1
1
1
0
1
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
54
RX Mode
1
1
1
1
1
0
ON
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
ON
85
RSSI Only
1
1
1
1
1
1
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
ON
80
PU_REG
PU_VCO
PU_RX/TX
PU_PLL
RX_ON
TX_ON
BB filter
Demodulator
IF amplifiers and RSSI
IR mixer
RX switch
TX switch
TX driver
Ramp generator
Programmable counter
Voltage-controlled oscillator
Gaussian filter
Phase detector / charge pump
Modulation compensation circuit
Reference counter
Typ. current consumption / mA @ V
S
= 3.2 V
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