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TEA0675

Features: · Dual noise reduction (NR) channels· Head pre-amplifiers· Reverse head switching· Automatic Music Search (AMS)· Music scan· Equalization with electronically switched time constants· Dolby reference level = 387.5 mV· 24 pins· Improved EMC behaviour.PinoutSpecifications SYMBOL PARAM...

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SeekIC No. : 004517209 Detail

TEA0675: Features: · Dual noise reduction (NR) channels· Head pre-amplifiers· Reverse head switching· Automatic Music Search (AMS)· Music scan· Equalization with electronically switched time constants· Dolby...

TEA0675 Data Sheet

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Part Number:
TEA0675
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Dual noise reduction (NR) channels
· Head pre-amplifiers
· Reverse head switching
· Automatic Music Search (AMS)
· Music scan
· Equalization with electronically switched time constants
· Dolby reference level = 387.5 mV
· 24 pins
· Improved EMC behaviour.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VCC supply voltage   0 14 V
Vi input voltage (except pin 11)   -0.3 +VCC V
tshort pin 11 (Vref) to VCC short-circuiting duration   - 5 s
Tstg storage temperature   -55 +150 °C
Tamb operating ambient temperature   -40 +85 °C
Ves electrostatic handling voltage for all pins note 1 -2 +2 kV
note 2 -500 +500 V
Notes
1. Human body model (1.5 k, 100 pF).
2. Machine model (0 , 200 pF).


Description

The TEA0675 is a bipolar integrated circuit that provides two channels of Dolby B noise reduction for playback applications in car radios. It includes head and equalization amplifiers with electronically switchable time constants. Furthermore it includes electronically switchable inputs for tape drivers with reverse heads.

This TEA0675 device also detects pauses of music in the Automatic Music Search (AMS) scan mode, for applications with an intelligent controlled tape driver, or AMS-latch mode, for applications with a simple controlled tape driver. For both modes, the delay time can be fixed externally by a resistor. The device operates with power supplies in the range of 7.6 to 12 V, output overload level increasing with increase in supply voltage.

Current drain varies with the following variables: supply voltage noise reduction on/off AMS on/off. Because of this current drain variation it is advisable to use a regulated power supply or a supply with a long time constant.




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