TDA6650ATT NXP [NXP Semiconductors], TDA6650ATT Datasheet - Page 29

• Manufacturer Part Number: TDA6650ATT
• Description: 5 V mixer/oscillator and low noise PLL synthesizer for hybrid terrestrial tuner (digital and analog)
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
[4]
[5]
[6]
[7]
[8]
[9]
[10] The supply ripple susceptibility is measured in the measurement circuit according to
[11] This is the level of divider interferences close to the IF frequency. The low and mid band inputs must be left open (i.e. not connected to
[12] Crystal oscillator interference means the 4 MHz sidebands caused by the crystal oscillator.
[13] The step frequency rejection is the level of step frequency sidebands related to the carrier. The measurement is done for
[14] This is the level of the 13rd and 15th harmonics of the 4 MHz crystal oscillator into the IF output.
[15] The AGC pin (pin 9 for TDA6650ATT and pin 30 for TDA6651ATT) must not be connected to a voltage higher than 3.6 V.
TDA6650ATT_6651ATT_2
Product data sheet
Fig 5. Input admittance (s
The RF frequency range is defined by the oscillator frequency range and the Intermediate Frequency (IF).
The 1 % cross modulation performance is measured with AGC detector turned off (AGC bits set to 110).
The IF output signal stays stable within the range of the step frequency for any RF input level up to 120 dB V.
Limits are related to the tank circuits used in
Frequency bands may be adjusted by the choice of external components.
The frequency shift is defined as a change in oscillator frequency when the supply voltage varies from V
V
The frequency drift is defined as a change in oscillator frequency when the ambient temperature varies from T
from T
connected to the IF output. An unmodulated RF signal is applied to the test board RF input. A sine wave signal with a frequency of
500 kHz is superimposed onto the supply voltage. The amplitude of this ripple signal is adjusted to bring the 500 kHz sidebands around
the IF carrier to a level of 53.5 dB with respect to the carrier.
any load or cable); the high band inputs are connected to an hybrid.
V
f
step
CC
IF
= 100 dB V. This specification point corresponds to the worst case observed in the frequency range. This parameter is specified for
= 142.86 kHz in digital applications and f
= 5 V to 5.25 V. The oscillator is free running during this measurement.
amb
= 25 C to 0 C. The oscillator is free running during this measurement.
11
10
10
) of the low band mixer (40 MHz to 200 MHz); Y
5
5
10
5
2
2
Figure 27
step
= 62.5 kHz, 50 kHz or 142.86 kHz in hybrid application.
Rev. 02 — 2 February 2007
2
and
28
for digital application or
1
TDA6650ATT; TDA6651ATT
1
1
5 V mixer/oscillator and low noise PLL synthesizer
0.5
0.2
0.5
0.5
200 MHz
40 MHz
Figure 27
Figure 29
o
= 20 mS
0.2
0.2
mce160
to
0
and
Figure 30
j
j
30
CC
for hybrid application.
= 5 V to 4.5 V or from
using a spectrum analyzer
amb
© NXP B.V. 2007. All rights reserved.
= 25 C to 50 C or
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