T2803 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
T2803 Datasheet PDF : 28 Pages
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Table 1-1. Functional Block Description
Name
Description
AUX REG
Auxiliary voltage regulator
BBF
Baseband filter
CP
Charge pump
DAC
D/A converter for demodulator tuning
DEMOD
Demodulator
GF
Gaussian filter for transmit data
IF AMP1
1st intermediate frequency amplifier
IF AMP2
2nd intermediate frequency amplifier
IR MIXER
Image rejection mixer
PC
Programmable counter
PD
Phase detector
RAMP GEN
Ramp-signal generator
RC
Reference counter
RSSI
Received signal-strength indicator
TX DRIVER
Buffer amplifier for TX_OUT
TX/RX SWITCH
Switches VCO signal to IR MIXER respectively TX DRIVER
VCO
Voltage-controlled oscillator
VCO REG
Voltage regulator for VCO
2. Pin Configuration
Figure 2-1. Pinning QFN48
CLOCK
DATA
ENABLE
REF_CLK
LD
PU_REG
VS_PLL
VREG
REG_CTRL
VS_REG
GND_CP
VS_CP
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
31
7
T2803
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
RAMP_OUT
IF_IN2
IF_IN1
VS_IF
TX_OUT
GND3
RF_IN2
RF_IN1
GND2
IF_TANK2
IF_TANK1
RSSI
2 T2803
4572I–DECT–07/05
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