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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)： | 1/27頁 |
| 文件大小： | 501K |
| 代理商： | T2803-PLS |
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Rev. 4572G–DECT–01/04
Features
Supply-voltage Range 3 V to 4.6 V (Regulated)
Auxiliary Voltage Regulator On-chip (3.2 V to 4.6 V)
Low Current Consumption
Few Low-cost External Components
No Mechanical Tuning Required
Supports Multiple Reference Clocks (10.368 MHz/13.824 MHz)
Fast Settling Synthesizer (864 kHz Channel Spacing)
TX Preamplifier with 3 dBm Output Power at 2.45 GHz (4 Programmable Power Levels)
Ramp-signal Generator for Power Ramping and Power Control of External SiGe Power
Amplifier (T7024 and T7026)
Electrostatic sensitive device.
Observe precautions for handling.
Description
The T2803 is an RF IC for low-power applications in the 2.45 GHz ISM band. The
QFN48-packaged IC is a complete transceiver including image rejection mixer, IF
amplifier, FM demodulator, baseband filter, RSSI, TX preamplifier, power-ramping
generator for power amplifiers, integrated synthesizer, fully integrated VCO and Gaus-
sian data filter for TX. No mechanical tuning is necessary in production.
Figure 1.
Block Diagram
TANK
PC
RC
GF
CP
VCO
f
: n
f
: n
CTRL
LOGIC
PD
TX/RX
SWITCH
IR MIXER
IF AMP 1
IF AMP 2
DEMOD
BB FILTER
3-WIRE
BUS
DEMOD DAC
RSSI
TX DRIVER
CLOCK
DATA
ENABLE
RX_ON
TX_ON
PU_RX/TX
PU_PLL
TX_DATA
RSSI
BB_OUT
CF
DEMOD
IF_TANK
IF_IN
MIXER
OUT
RF_IN
TX_OUT
VS_VCO
CP
LD
REF_CLK
VTUNE
VREG
VS_REG
REG_CTRL
VREG_VCO
VCO
REG
RAMP
GEN
RAMP_OUT
RAMP_SET
AUX
REG
OLE
PU_REG
GND_VCO
D/A
I_CPSW
RAMP
D/A
2.4 GHz
WDECT/ISM
Single-chip
Transceiver
T2803
Preliminary
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