Clock board introduction:

1. The Raspberry Pi motherboard uses a low-precision passive crystal oscillator as the clock signal source, the quality of the clock signal
Low, the constant temperature crystal oscillator clock signal has high precision and high stability, and the upgraded clock can effectively change
Improve the quality of the bus clock. After the upgrade, the sound is extended and strengthened at both ends, transparent and clean, and the details are clear.
2. Use a 10MHz constant temperature crystal oscillator as a reference clock signal. All output frequency points are synchronized and output.
3. One crystal oscillator signal source per board, 3 outputs, can upgrade the 3 crystal oscillators on the Raspberry Pi 4th generation motherboard at the same time, reducing the crosstalk between using multiple different crystal oscillators at different frequencies.
4. Use the low-noise voltage regulator chip TPS7A4700 to provide regulated power supply for the 0CX0 constant temperature crystal oscillator.
5. The core clock processing chip is two-stage regulated power supply.
6. Use G-level radio frequency dedicated 50 ohm cable to effectively ensure the quality of signal transmission.
Use ipex1 generation seat to facilitate players to disassemble and assemble.
7. This product is specially designed for Raspberry Pi 4th generation motherboards, only applicable to Raspberry Pi 4th generation motherboards

Clock board electrical parameters:

Input:
External 10MHz reference clock signal or install 25X25X13 package 5V/10MHz constant temperature crystal oscillator
Input instructions: 1. The external 10MHz reference clock signal can only be used when the 0CX0 constant temperature crystal oscillator is not installed; 2. The input level cannot exceed 5Vpp.
Output:
1.54MHz/3.3Vpp1 channel
2.25MHz/3.3Vpp 2-way power supply:
Power supply voltage: DC stabilized voltage +6V to +9V (power supply exceeding 9V is not recommended)
Suggested power supply current: =1000MA (including MV85 constant temperature crystal oscillator reference current) (this power supply interface only supplies power to the clock board, not to the Raspberry Pi)