TEA5760UK/N1-T ST-Ericsson Inc, TEA5760UK/N1-T Datasheet - Page 12

• 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
6.19.3 Auto high-side and low-side injection stop switch
Table 4.
The channel quality can sometimes be improved in case of image frequency interference.
This can be achieved if the LO injection is positioned at the opposite side of the wanted
channel (see
the IF frequency counter. To enable this feature bit AHLSI has to be set to logic 1.
The search/preset algorithm will stop and generate an interrupt event after detection of a
valid RSSI level in combination with a frequency outside the IF frequency window. The
host processor can detect this state by reading the interrupt register. Swap of the LO
injection is achieved by inversion of bit HLSI in combination with a new tuning word for the
changed oscillator frequency (see
Bit
IFFLAG
0
0
0
0
1
1
1
1
Fig 4. Switch from high-side injection of LO to low-side injection using the HLSI bit
Tuner truth table
Figure
BLFLAG
0
0
1
1
0
0
1
1
image on low-side
4). Indication for image frequency interference can be derived from
Rev. 01 — 14 December 2006
FRRFLAG
0
1
0
1
0
1
0
1
switch LO from high-side to low-side
Section
wanted channel
6.5).
Comment
if INTX has gone low and IFMSK, LEVMSK,
FRRMSK and BLMSK were set then this cannot
occur
channel found during search, BLMSK and
FRRMSK set
not a valid combination
no channel found and the band limit has been
reached during a search, BLMSK and FRRMSK
set
not possible during a preset or a search
A preset or search has been done, but the
wanted channel has a valid RSSI level but fails
the IF count. When AHLSI was set HLSI must be
toggled and a new PLL value must be
programmed.
not a valid combination
band limit is reached during search, no valid
channel found
image on high-side
Single chip FM stereo radio
TEA5760UK
001aab460
© NXP B.V. 2006. All rights reserved.
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