NXP Semiconductors TDA5636B
The TDA5636B and TDA5637B are monolithic integrated circuits that perform the mixer/oscillator functions for bands A, B and C in TV and VCR tuners. These low-power mixer/oscillators require a power supply of 9 V and are available in a very small package. The devices give the designer the capability to design an economical and physically small 3-band tuner.| Part No. | TDA5636B |
|---|---|
| Datasheet | TDA5636B Download |
| Manufacturer |  NXP Semiconductors |
| Description | 9 V VHF hyperband and UHF mixer/oscillator for TV and VCR 3-band tuners |
| Buy | Stock & Price |
FEATURES
● Balanced mixer with a common emitter input for band A (single input)● 2-pin oscillator for bands A and B
● Balanced mixer with a common base input for bands B and C (balanced input)
● 4-pin oscillator for band C
● Local oscillator buffer output for external prescaler
● SAW filter preamplifier with a low output impedance to drive the SAW filter directly
● Band gap voltage stabilizer for oscillator stability
● Electronic band switch
● External IF filter between the mixer output and the IF amplifier input
● Pin-to-pin compatible with TDA5636; TDA5637 family (same function with asymmetrical IF output).
APPLICATIONS
● 3-band all channel TV and VCR tuners● Any standard. TDA5636B; TDA5637B
GENERAL DESCRIPTION
They are suitable for European standards, as illustrated in Fig.17, with the following RF bands:● 48.25 to 168.25 MHz
● 175.25 to 447.25 MHz
● 455.25 to 855.25 MHz. With an appropriate tuned circuit, they are also suitable for NTSC all channel tuners (USA and Japan). The tuner development time can be drastically reduced by using these devices.
