TDA6500TT Datasheet, PDF (3/40 Pages) NXP Semiconductors – 5 V mixer/oscillator and synthesizer for PAL and NTSC standards

Philips Semiconductors
5 V mixer/oscillator and synthesizer
for PAL and NTSC standards
Product specification
TDA6500TT; TDA6501TT
1 FEATURES
• Single-chip 5 V mixer/oscillator and synthesizer for
TV and VCR tuners
• I²C-bus protocol compatible with 3.3 V and 5 V
microcontrollers:
– Address + 6 data bytes transmission
– Address + 1 status byte (I²C-bus read mode)
– Four independent I²C-bus addresses.
• Two PMOS open-drain ports with 5 mA source
capability to switch high band and FM sound trap
(P2 and P3)
• One PMOS open-drain port with 20 mA source
capability to switch the mid band (P1)
• One PMOS open-drain port with 10 mA source
capability to switch the low band (P0)
• Five step, 3-bit Analog-to-Digital Converter (ADC) and
NPN open-collector general purpose port with 5 mA
sinking capability (P6)
• NPN open-collector general purpose port with 5 mA
sinking capability (P4)
• Internal AGC flag
• In-lock flag
• 33 V tuning voltage output
• 15-bit programmable divider
• Programmable reference divider ratio: 64, 80 or 128
• Programmable charge pump current: 60 or 280 µA
• Varicap drive disable
• Balanced mixer with a common emitter input for the low
band (single input)
• Balanced mixer with a common base input for the mid
and high bands (balanced input)
• 2-pin asymmetrical oscillator for the low band
• 2-pin asymmetrical oscillator for the mid band
• 4-pin symmetrical oscillator for the high band
• Frequency ranges: see Table 1
• IF preamplifier with asymmetrical 75 Ω output
impedance to drive a SAW filter (500 Ω/40 pF)
• Wide-band AGC detector for internal tuner AGC:
– Five programmable take-over points
– Two programmable time constants.
2 APPLICATIONS
• TV and VCR tuners
• Specially suited for switched concepts, all systems
• Specially suited for strong off-air reception.
2003 Jun 05
3