TEA5760UK/N1-T ST-Ericsson Inc, TEA5760UK/N1-T Datasheet - Page 15

• Manufacturer Part Number: TEA5760UK/N1-T
• Description: IC FM STEREO RADIO 25-WLCSP
• Manufacturer: ST-Ericsson Inc

Specifications of TEA5760UK/N1-T

• Frequency: 76MHz ~ 90MHz, 87.5MHz ~ 108MHz
• Modulation Or Protocol: FM
• Current - Receiving: 10mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.6 V ~ 3.6 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 25-WLCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Applications: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Other names: 935278949118

NXP Semiconductors
TEA5760UK_1
Product data sheet
7.1.4.1 Multiple interrupt events
7.1.4.2 IF frequency: IFFLAG
7.1.1 Interrupt clearing
7.1.2 Timing
7.1.3 Reset
7.1.4 Interrupt flags and behavior
The interrupt flag and mask bits are always cleared after:
The timing sequence for the general operation interrupts is shown in
read access of the interrupt register INTREG and a subsequent (though not necessarily
immediate) write to the mask register. It also indicates two key timing points A and B.
If an interrupt event occurs while the register is being read (after point A) it must be held
until after the mask register is cleared at the end of the read operation (point B).
Point A is defined as: the R/W bit has been decoded. Point B is where the acknowledge
has been received from the master after the first two bytes have been sent.
The low time for the INTX line (t
shorter when a read action of the INTREG registers occurs within t
A reset can be performed (at any time) by a simple read of the interrupt register (byte0R
and byte1R), which automatically clears the interrupt flags and masks.
If the interrupt mask register bit is set then the setting of an interrupt flag for that bit
causes a HW interrupt (INTX goes LOW). If the event occurs again, before the flag is
cleared, then this does not trigger any further HW interrupts until that specific flag is
cleared. However two different events can occur in sequence and generate a sequence of
HW interrupts.
Only when read, followed by a write of the INTMSK byte has been done, can a second
interrupt can be generated, as the first interrupt blocks the input of the INTX oneshot
generator.
If subsequent interrupts occur within the INTX LOW period then these do not cause the
INTX period to extend beyond its specified maximum period (see
During automatic frequency search or preset, the FM part of the TEA5760UK performs a
check on the received IF frequency. If an incorrect IF frequency is received then this
indicates the presence of strong interference or tuning to the image frequency. In case of
preset tuning or search tuning with the AHLSI bit set the IFFLAG will be set and the
algorithm will stop. When a search or preset is finished the FRRFLAG will be set and an
interrupt is generated if the corresponding mask bit is set. The host processor can now
read the outcome of the registers which will contain the IF count value and the IFFLAG
status of the channel it is tuned to.
•
•
They have been read via the control interface
A power-on reset
Rev. 01 — 14 December 2006
p
) has a maximum value specified in
Single chip FM stereo radio
TEA5760UK
Section
p
.
Section
Figure 5
© NXP B.V. 2006. All rights reserved.
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