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TDA5737

Features: · Balanced mixer with a common emitter input for band A (single input)· 2-pin oscillator for band A· Balanced mixer with a common base input for bands B and C (balanced input)· 3-pin oscillator for band B· 4-pin oscillator for band C· Local oscillator buffer output for external prescaler...

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SeekIC No. : 004516459 Detail

TDA5737: Features: · Balanced mixer with a common emitter input for band A (single input)· 2-pin oscillator for band A· Balanced mixer with a common base input for bands B and C (balanced input)· 3-pin oscil...

TDA5737 Data Sheet

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Part Number:
TDA5737
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Balanced mixer with a common emitter input for band A (single input)
· 2-pin oscillator for band A
· Balanced mixer with a common base input for bands B and C (balanced input)
· 3-pin oscillator for band B
· 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.


Application

· 3-band all channel TV and VCR tuners
· Any standard.


Pinout

Connection Diagram




Specifications

SYMBOL PARAMETER MIN. MAX. UNIT
VP supply voltage -0.3 +7.0 V
VSW switching voltage -0.3 +7.0 V
Vn(max) maximum voltage on each pin with a 22 k resistor connected in series - 35 V
IO output current of each pin to ground - -10 mA
tsc(max) maximum short-circuit time (all pins) - 10 s
Tstg IC storage temperature -55 +150
Tamb operating ambient temperature -20 +80
Tj junction temperature - 150



Description

The TDA5736 and TDA5737 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 5 V and are available in a very small package.

TDA5736 and TDA5737 give the designer the capability to design an economical and physically small 3-band tuner.

TDA5736 and TDA5737 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 and 455.25 to 855.25 MHz. With an appropriate tuned circuit, TDA5736 and TDA5737 are also suitable for NTSC all channel tuners  (USA and Japan).

The tuner development time of TDA5736 and TDA5737 can be drastically reduced by using these devices.




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