TUA 6041-2 Infineon Technologies, TUA 6041-2 Datasheet - Page 23

• Manufacturer Part Number: TUA 6041-2
• Description: IC TUNER MOPLL PRTBL 48-VQFN
• Manufacturer: Infineon Technologies
• Series: OMNITUNE™r
• Type: Tunerr

Specifications of TUA 6041-2

• Package / Case: 48-VQFN
• Applications: NTSC, PAL
• Mounting Type: Surface Mount
• Bus Type: I2C
• Maximum Frequency: 1492 MHz
• Minimum Frequency: 1452 MHz
• Modulation Technique: FM
• Mounting Style: SMD/SMT
• Function: TV
• Noise Figure: 8 dB
• Operating Supply Voltage: 3.3 V, 5 V
• Supply Voltage (min): 3 V
• Supply Voltage (max): 5.5 V
• Minimum Operating Temperature: - 20 C
• Maximum Operating Temperature: + 85 C
• Packages: PG-VQFN-48
• Vs (min): 3.0 V
• Vs (max): 5.5 V
• Icc (max): 62.0 mA
• Esd Protection (max): 2.0 kV
• Interfaces: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TUA60412XT

3.4.4
The VCO frequency f
Frequency Synthesizer). The oscillator signal is internally DC-coupled as a differential
signal to the programmable divider input. The signal subsequently passes through a
programmable divider (N) and then the divided VCO signal:
is compared in a digital frequency/phase detector (PD, frequency detector) with a
programmable reference frequency:
which is derived from a quartz reference f
divider (R).
The phase detector has a linear operating range without a dead zone for very small
phase deviations. A programmable ABL pulse width (Anti BackLash) works against the
delay of the charge pump cell. The selectable ABL pulse width values have been
implemented for test purpose only and have no performance effects.
The phase detector has two outputs (up & down) that drive two current sources of
opposite polarity as charge pump (CP). If the negative edge of the divided VCO signal
appears prior to the negative edge of the reference signal, the positive current source
(I
current source (I
charge pump current is approximately zero. In case of active closed loop control the
charge pump provides programmable output current drive capability to optimize the loop
requirements. The charge pump currents are programmable from 0 to 1.125 mA in steps
of 75 µA.
The PLL contains an integrated lock detector. A lock-in flag is set when the loop is
locked. It can be read by the processor via the common I
The crystal oscillator (XTAL) is an unbalanced Pierce oscillator which operates in parallel
resonance with quartz crystals from 4...16 MHz. By programming it’s possible to pass
the oscillator frequency f
external quartz clock for the reference oscillator via a switchable preamplifier for test
purpose only.
3.4.5
The programming of the CMOS frequency synthesizer is done via a combined serial
I
signal at pin BUSMODE.
Data Sheet
2
source
C/3-Wire bus interface. The choice of the desired bus is made by a bus mode select
) pulses for the duration of the phase difference. In the reverse case the negative
PLL block, XTAL oscillator
Bus Interface
sink
) pulses. If the two signals are in phase (PLL is locked), the integrated
OSC
XTAL
is stabilized by a digital CMOS PLL (Phase Locked Loop,
f
div
through a divider stage to a buffered output pin or to use an
f
ref
=
=
f
----------- - N
OSC
f
--------------- R
N
XTAL
R
23
XTAL
=
240
=
2
divided by a programmable reference
1023
65535
2
C/3-Wire bus.
Functional Description
Revision 3.1, 2006-12-19
LIGHTNING
TUA 6041-2