tda5235 Infineon Technologies Corporation, tda5235 Datasheet - Page 71
tda5235
Manufacturer Part Number
tda5235
Description
Enhanced Sensitivity Double-configuration Receiver With Digital Baseband Processing
Manufacturer
Infineon Technologies Corporation
Datasheet
1.TDA5235.pdf
(259 pages)
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Quantity
Price
Part Number:
TDA5235
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
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2.4.9.1
In SLEEP Mode, the Master Control Unit switches the crystal oscillator into Low Power
Mode (all internal load capacitors are disconnected) to minimize power consumption.
This is also valid for Self Polling Mode during Off time (SPM_OFF).
Whenever the chip leaves the SLEEP Mode/SPM_OFF (t
resumes operation in High Precision Mode and requires t
frequency. At t
At t
Mode/SPM_OFF until the receiver is ready to receive data.
A transient supply current peak may occur at t
capacitance. The average supply current drawn during t
Figure 42
If the IF buffer amplifier or the clock generation feature (PPx pin active) are enabled, the
respective currents must be added.
Data Sheet
*) Run Mode covers the global chip states : Run Mode Slave / Receiver active in Self Polling Mode / Run Mode Self Polling
**) I
sleep_low
3
I
RF-FE-startup ,BPFcal
the chip is ready to receive data. The chip requires t
SLEEP Mode**)
SPM OFF Time
RX_RUN Signal
is valid in the chip states : SLEEP / Off time during Self Polling Mode
Run Mode*)
I
sleep_low
Supply Current
Current
Supply
I
Supply Current Ramp Up/Down
2
Run
the analog signal path (RF and IF section) and the RF PLL are activated.
(T
off
)
t
1
t
COSCsettle
t
RFstartdelay
t
RXstartup
t
71
2
1
, depending on the selected trimming
T
t
on
3
RFstartdelay
COSCsettle
RXstartup
1
Functional Description
), the crystal oscillator
to settle at the trimmed
is I
when leaving SLEEP
RF-FE-startup,BPFcal
V1.0, 2010-02-19
TDA5235
(T
off
)
.
t
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