TH7301

Features: · Wide cutoff frequency range (0.8 MHz to 22.4 MHz)· Dual-channel architecture produces superior matching and ease of use for quadrature signals· Companding design provides higher resolution at lower cutoff frequencies· Low power consumption (<105 mA, typical 55 mA from -5 V supply; F...

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TH7301 Picture
SeekIC No. : 004518588 Detail

TH7301: Features: · Wide cutoff frequency range (0.8 MHz to 22.4 MHz)· Dual-channel architecture produces superior matching and ease of use for quadrature signals· Companding design provides higher resoluti...

floor Price/Ceiling Price

Part Number:
TH7301
Supply Ability:
5000

Price Break

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

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Upload time: 2024/3/28

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Product Details

Description



Features:

· Wide cutoff frequency range (0.8 MHz to 22.4 MHz)
· Dual-channel architecture produces superior matching and ease of use for quadrature signals
· Companding design provides higher resolution at lower cutoff frequencies
· Low power consumption (<105 mA, typical 55 mA from -5 V supply; Fc = 1 MHz@ 25°C)
· Single ended or differential input operation possible (AC coupled)
· No external components for trimming necessary
· Small package (16-pin SOP)



Application

· Digital Broadcasting Systems (DBS) and Digital Video Broadcasting (DVB)
· Satellite and cable TV decoders
· Microwave point to point links



Pinout

  Connection Diagram


Specifications

Parameter Symbol Min Typ Max Unit Conditions
Power supply voltage VEE, VSS -7   0.3 V  
Input voltage - logic inputs Vi VSS - 0.3V   0.3V    
Junction temperature Tj -40   +150  
Storage temperature Tstg -40   +125  
Notes: All voltages relative to VCC, VDD



Description

The TH7301 incorporates two matching 4th-order Butterworth filters with voltage gain control to perform low-pass filtering on quadrature demodulated signals. The cutoff frequency and inband gain are programmable via a standard 3-wire interface. The cutoff frequency can be set between 0.8 MHz and 22.4 MHz and the inband voltage gain can be set between -3 dB and 20 dB. The cutoff frequency value is determined via a 10-bit control word, with smaller step sizes in the lower portion of the cutoff frequency range. The TH7301 contains an on-chip oscillator to adjust the cutoff frequency. Maintaining amplifiers configure the Butterworth filter as the phase shift component of the oscillator. The frequency of oscillation tracks the filter cutoff frequency. The cutoff frequency of the filter can be accurately set according to the resolution of the IC by measuring the frequency of oscillation.




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