TDA6650TT; TDA6651TT
5 V mixer/oscillator and low noise PLL synthesizer for hybrid
terrestrial tuner (digital and analog)
Rev. 05 — 10 January 2007
Product data sheet
1. General description
The TDA6650TT; TDA6651TT is a programmable 3-band mixer/oscillator and low phase
noise PLL synthesizer intended for pure 3-band tuner concepts applied to hybrid (digital
and analog) or digital only terrestrial and cable TV reception.
Table 1.
Different versions are available depending on the target application
Type version
TDA6650TT/C3
TDA6651TT/C3
digital only
TDA6650TT/C3/S2
TDA6651TT/C3/S2
TDA6651TT/C3/S3
[1]
See
for differences between TDA6651TT/C3/S2 and TDA6651TT/C3/S3.
Application
hybrid (analog and digital)
The device includes three double balanced mixers for low, mid and high bands, three
oscillators for the corresponding bands, a switchable IF amplifier, a wideband AGC
detector and a low noise PLL synthesizer. The frequencies of the three bands are shown
in
Two pins are available between the mixer output and the IF amplifier input to
enable IF filtering for improved signal handling and to improve the adjacent channel
rejection.
Table 2.
Band
Recommended band limits in MHz
RF input
Min
Low
Mid
High
Low
Mid
High
[1]
[2]
Oscillator
Max
157.25
443.25
863.25
160.00
446.00
866.00
Min
83.15
196.15
482.15
83.15
196.15
482.15
Max
196.15
482.15
902.15
196.15
482.15
902.15
PAL and DVB-T tuners for hybrid application
44.25
157.25
443.25
47.00
160.00
446.00
DVB-T tuners for digital only application
RF input frequency is the frequency of the corresponding picture carrier for analog standard.
RF input frequency is the frequency of the center of DVB-T channel.
The IF amplifier is switchable in order to drive both symmetrical and asymmetrical
outputs. When it is used as an asymmetrical amplifier, the IFOUTB pin needs to be
connected to the supply voltage V
CCA
.
PHILIPS [ NXP SEMICONDUCTORS ]
