Multi Clock Generator for Audio

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The AK8128ME is a member of AKM’s low power multi clock generator family designed for a high quality audio clock with high performance C/N. The AK8128ME generates different frequency clocks from external clock input. It provides them to up to two outputs configured by pin-setting. The circuitries of PLL in AK8128ME are derived from AKM’s long-term-experienced clock device technology, and enable clock output to perform low jitter and to operate with very low current consumption. The AK8128ME is available in a 10-pin TMSOP package.

Key Features

External Clock Input Frequencies: - 2.8224/3.072/11.2896/12.288/27.000MHz

Two Frequency-Selectable Clock Outputs

Selectable Clock Output Frequencies:

- CLK1: 24.576/45.000/46.40625MHz

- CLK2: 11.2896MHz/off

Low Jitter Performance

- Period Jitter (1σ):

20 psec (Typ.) at CLK1-2

- Long Term Jitter (1000 cycle, 1σ):

40 psec (Typ.) at CLK1-2

Low Current Consumption: 8.0mA (Typ.) at 3.3V

Output Load: 15pF (Max.)

Supply Voltage: 3.0V to 3.6V

Operating Temperature Range: -20℃ to +85℃

Package: 10-pin TMSOP (lead-free)

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Block Diagram

Block Diagram

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