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MC44826

Features: • Complete Single Chip System for MPU Control (I2C Bus)• Divideby8 Prescaler Accepts Frequencies up to 1.3 GHz• 15 Bit Programmable Divider• Reference Divider: Programmable for Division Ratios 512 and 1024• 3State Phase/Frequency Comparator• Operationa...

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SeekIC No. : 004416010 Detail

MC44826: Features: • Complete Single Chip System for MPU Control (I2C Bus)• Divideby8 Prescaler Accepts Frequencies up to 1.3 GHz• 15 Bit Programmable Divider• Reference Divider: Prog...

MC44826 Data Sheet

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Part Number:
MC44826
Supply Ability:
5000

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

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Upload time: 2024/11/27

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Product Details

Description



Features:

• Complete Single Chip System for MPU Control (I2C Bus)
• Divideby8 Prescaler Accepts Frequencies up to 1.3 GHz
• 15 Bit Programmable Divider
• Reference Divider: Programmable for Division Ratios 512 and 1024
• 3State Phase/Frequency Comparator
• Operational Amplifier for Direct Tuning Voltage Output (30 V)
• Four Programmable Chip Addresses
• Integrated Band Decoder for the Mixer/Oscillator Circuit
• Band Buffers with Low "On" Voltage (0.4 V Maximum at 15 mA)
• Fully ESD Protected to MILSTD883C, Method 3015.7 (2000 V, 1.5 kW, 150 pF)


Pinout

Connection Diagram


Specifications

Rating
Pin
Value
Unit

Power Supply Voltage (VCC1)
5
6.0
V
Band Buffer "Off" Voltage
6, 7, 8
15
V
Band Buffer "On" Current
6, 7, 8
20
mA
Operational Amplifier Power Supply (VCC2)
1
40
V
RF Input Level 10 MHz to 1.3 GHz
3, 4
1.5
Vrms
Storage Temperature
-
65 to +150
Operating Temperature Range
-
20 to +80
Bus Input Voltage (Positive)
10, 11
7
V
Bus Input Voltage (Negative)
10, 11
0.5
V



Description

The MC44826 is a tuning circuit for TV and VCR tuner applications. It  contains, on one chip, all the functions required for PLL control of a VCO. This integrated circuit also contains a high frequency prescaler and thus can handlefrequencies up to 1.3 GHz. The MC44826 has a band decoder that provides the band switching signal for the mixer/oscillator circuit. The decoder is controlled by the buffer bits or independently by extra bits T6 and T7.

The MC44826 has a programmable 512/1024 reference divider and is manufactured on a single silicon chip using Motorola's high density bipolar process, MOSAICE (Motorola Oxide Self Aligned Implanted Circuits).




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