TDA6650ATT Datasheet, PDF (1/54 Pages) NXP Semiconductors – 5 V mixer/oscillator and low noise PLL synthesizer for hybrid terrestrial tuner (digital and analog)

TDA6650ATT; TDA6651ATT
5 V mixer/oscillator and low noise PLL synthesizer for hybrid
terrestrial tuner (digital and analog)
Rev. 02 — 2 February 2007
Product data sheet
1. General description
The TDA6650ATT; TDA6651ATT 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^[1]
Application
Type version
Analog and digital (Hybrid ISDB-T/NTSC Japan) TDA6650ATT/C3
TDA6651ATT/C3
Digital only (ISDB-T)
TDA6650ATT/C3/S2
TDA6651ATT/C3/S2
TDA6651ATT/C3/S3
[1] See Table 20 “Characteristics” for differences between TDA6651ATT/C3/S2 and TDA6651ATT/C3/S3.
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 Table 2. 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. Recommended band limits
Band
RF input
Min (MHz)
Max (MHz)
ISDB-T and NTSC Japan hybrid tuners^[1]
Low
91.25
217.25
Mid
217.25
463.25
High
463.25
765.25
ISDB-T tuners for digital-only application^[2]
Low
93.00
219.00
Mid
219.00
465.00
High
465.00
767.00
Oscillator
Min (MHz)
150
276
522
150
276
522
Max (MHz)
276
522
824
276
522
824
[1] RF input frequency is the frequency of the corresponding picture carrier for analog standard.
[2] For bandwidth optimization please refer to Application note AN01014.
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.