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T4260

Features: • AM/FM Tuner Front End with Integrated PLL• AM Up-conversion System (AM-IF: 10.7 MHz)• FM Down-conversion System (FM-IF: 10.7 MHz)• IF Frequencies up to 25 MHz• Fine-tuning Steps: AM = 1 kHz and FM = 50 kHz/25 kHz/12.5 kHz• Fast Fractional PLL (Lock T...

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SeekIC No. : 004511144 Detail

T4260: Features: • AM/FM Tuner Front End with Integrated PLL• AM Up-conversion System (AM-IF: 10.7 MHz)• FM Down-conversion System (FM-IF: 10.7 MHz)• IF Frequencies up to 25 MHzR...

T4260 Data Sheet

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Part Number:
T4260
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:

• AM/FM Tuner Front End with Integrated PLL
• AM Up-conversion System (AM-IF: 10.7 MHz)
• FM Down-conversion System (FM-IF: 10.7 MHz)
• IF Frequencies up to 25 MHz
• Fine-tuning Steps: AM = 1 kHz and FM = 50 kHz/25 kHz/12.5 kHz
• Fast Fractional PLL (Lock Time < 1 ms) Inclusive Spurious Compensation
• Fast RF-AGC, Programmable in 1-dB Steps
• Fast IF-AGC, Programmable in 2-dB Steps
• Fast Frequency Change by 2 Programmable N-divider
• Two DACs for Automatic Tuner Alignment
• High S/N Ratio
• 3-wire Bus (Enable, Clock and Data; 3 V and 5 V Microcontrollers-compatible)


Pinout

Connection Diagram


Specifications

Parameters
Symbol
Value
Unit
Analog supply voltage Pins 15 and 41
VST, VSPLL
10
V
Maximum power consumption
Ptot
1.0
W
Ambient temperature range
Tamb
-40 to +85
Storage temperature range
Tstg
-40 to +150
Junction temperature
Tj
150



Description

The T4260 is an advanced AM/FM receiver with integrated fast PLL as a single-chip solution based on Atmel's high-performance BICMOS II technology. The low-impedance driver at the IF output of T4260 is designed for the A/D of a digital IF. The fast tuning concept realized in this part is based on patents held by Atmel and allows lock times less than 1 ms for a jump over the FM band with a step width of 12.5 kHz. The AM up-conversion and the FM down-conversion allows an economic filter concept. An automatic tuner alignment is provided by built-in DACs for gain and offset compensation. The frequency range of the T4260 covers the FM broadcasting band as well as the AM band. The low current consumption of T4260 helps the designers to achieve economic power consumption concepts and helps to keep the power dissipation in the tuner low.




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