tda5255e1 Infineon Technologies Corporation, tda5255e1 Datasheet - Page 33
tda5255e1
Manufacturer Part Number
tda5255e1
Description
Ask/fsk 434mhz Wireless Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.TDA5255E1.pdf
(93 pages)
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Manufacturer
Quantity
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Part Number:
TDA5255E1
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
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Note: It is required to activate the device for the duration of t
Only if this is done the normal operation timing is performed.
With default settings the clock generating units are disabled during PD, therefore no clock is
available at the clock output pin. It is possible to offer a clock signal at the clock output pin every
time (also during PD) if the CLK_EN Bit in the CONFIG register is set to HIGH.
Figure 2-15
Note: The time values are typical values
Figure 2-16
Preliminary Specification
DC OFFSET COMPENSATION
PEAK DETECTOR EN
DATADETECTION EN
POWER AMP EN
DC OFFSET COMPENSATION
PEAK DETECTOR EN
DATADETECTION EN
XTAL EN
STATUS
0.5ms
POWER AMP EN
t
C LK S U
1
1st start or reset in PD mode
st
XTAL EN
STATUS
start or reset in active mode
0.5ms
t
C L KS U
RESET
or 1
PWDDD = low
TX activ or RX activ
st
POWER ON
RESET
or 1
PWDDD = high
CLOCK FOR EXTERNAL µP
t
S Y S S U
8ms
st
POWER ON
1.1ms
t
CLOCK FOR EXTERNAL µP
T X S U
PD
if RX
if RX
if RX
if TX
t
2.2ms
t
2.6ms
R X S U
D D S U
t
0.5ms
C LK S U
PWDDD = low
33
PD
TX activ or RX activ
t
S Y S S U
8ms
TX activ
1.1ms
t
TX S U
t
1.1ms
TX S U
if RX
SYSSU
t
0.5ms
C L K S U
PD
if RX
if RX
if TX
t
2.2ms
t
2.6ms
R X SU
D D S U
after first power on or a reset.
RX activ
0.5ms
t
C LK S U
Functional Description
PD
t
2.2ms
t
2.6ms
R X S U
D D S U
TX activ
TX activ
t
1.1ms
t
Sequenzer_Timing_pupstart.wmf
1.1ms
TX S U
TX S U
Sequenzer_Timing_pdstart.wmf
TDA5255 E1
RX activ
Version 1.1
RX activ
t
2.2ms
t
2.6ms
R X S U
D D S U
2002-11-28
t
2.2ms
t
2.6ms
R X S U
D D S U
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