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U4459B

Features: ·Input frequency range 30 to 50 MHz (1st IF)·Wideband IF amplifier with high linearity·Gain control of the IF amplifier by external dc voltage·Mixer stage with local oscillator input (symmetrical or unsymmetrical)·High output level of mixed signal (2nd IF) (up to 2.4 V, peak-to-peak valu...

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SeekIC No. : 004534900 Detail

U4459B: Features: ·Input frequency range 30 to 50 MHz (1st IF)·Wideband IF amplifier with high linearity·Gain control of the IF amplifier by external dc voltage·Mixer stage with local oscillator input (symm...

U4459B Data Sheet

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Part Number:
U4459B
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: 2024/9/25

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Product Details

Description



Features:

·Input frequency range 30 to 50 MHz (1st IF)
·Wideband IF amplifier with high linearity
·Gain control of the IF amplifier by external dc voltage
·Mixer stage with local oscillator input (symmetrical or unsymmetrical)
·High output level of mixed signal (2nd IF) (up to 2.4 V, peak-to-peak value)
·Tuner-AGC with adjustable take over point for a preamplifier
·Supply voltage range 6.8 to 13.5 V


Pinout

Connection Diagram


Specifications

Reference point Pin 4, unless otherwise specified
Parameters
Symbol
Value
Unit
Supply voltage Pin14
VS
13.5
V
Supply current Pin14
IS
55
mA
Power dissipation , VS=13.5V Pin14
P
750
mW
Junction temperature
Tj
125
Storage temperature range
Tstg
25 to +125



Description

The U4459B is an integrated bipolar circuit suitable for the IF processing in cable-DVB receiver (DVB = Digital Video Broadcasting) and cable network application.

The circuit U4459B contains a wideband IF amplifier, mixer stage,gain control for the IF amplifier and a tuner-AGC (Automatic Gain Control) with adjustable take over point for an additional external preamplifier (tuner).




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