TDA6500 Datasheet, PDF(1/37 Page) NXP Semiconductors – 5 V mixer/oscillator and synthesizer for PAL and NTSC standards

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TDA6500 Datasheet, PDF (1/37 Pages) NXP Semiconductors – 5 V mixer/oscillator and synthesizer for PAL and NTSC standards

TDA6500; TDA6501

5 V mixer/oscillator and synthesizer for PAL and NTSC

standards

Rev. 02 â 14 June 2005

Product data sheet

1. General description

TDA6500TT and TDA6501TT are programmable 2-mixer, 3-oscillator and synthesizer

MOPLLs intended for pure 3-band tuner concepts.

The device includes two double balanced mixers for the low and mid/high bands and three

oscillators for the low, mid and high bands, respectively. Other functions are an

IF ampliï¬er, a wide-band AGC detector and a PLL synthesizer. Two pins are available

between the mixer output and the IF ampliï¬er input to enable IF ï¬ltering for improved

signal handling.

The device can be controlled according to the I2C-bus format.

2. Features

s Single-chip, 5 V mixer/oscillator and synthesizer for TV and VCR tuners

s I2C-bus protocol compatible with 3.3 V and 5 V microcontrollers:

x Address + 6 data bytes transmission

x Address + 1 status byte (I2C-bus read mode)

x Four independent I2C-bus addresses

s Two PMOS open-drain ports with 5 mA source capability to switch high band and FM

sound trap (P2 and P3)

s One PMOS open-drain port P1 with 20 mA source capability to switch the mid band

s One PMOS open-drain port P0 with 10 mA source capability to switch the low band

s Five step, 3-bit Analog-to-Digital Converter (ADC) and NPN open-collector general

purpose port P6 with 5 mA sinking capability

s NPN open-collector general purpose port P4 with 5 mA sinking capability

s Internal AGC ï¬ag

s In-lock ï¬ag

s 33 V tuning voltage output

s 15-bit programmable divider

s Programmable reference divider ratio: 64, 80 or 128

s Programmable charge pump current: 60 ÂµA or 280 ÂµA

s Varicap drive disable

s Balanced mixer with a common emitter input for the low band (single input)

s Balanced mixer with a common base input for the mid and high bands (balanced input)

s 2-pin asymmetrical oscillator for the low band

s 2-pin asymmetrical oscillator for the mid band

s 4-pin symmetrical oscillator for the high band

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