ZHCSJU4I November 2006 – September 2018 CC1020
PRODUCTION DATA.
PARAMETER | MIN | TYP | MAX | UNIT | CONDITION | |
---|---|---|---|---|---|---|
Crystal Oscillator Frequency | 4.9152 | 14.7456 | 19.6608 | MHz | Recommended frequency is
14.7456 MHz. See Section 5.16 for details. |
|
Reference frequency
accuracy requirement(1)(2) |
±5.7 | ppm | 433 MHz (EN 300 220) | |||
±2.8 | ppm | 868 MHz (EN 300 220)
Must be less than ±5.7 / ±2.8 ppm to comply with EN 300 220 25 kHz channel spacing at 433/868 MHz. |
||||
±4 | ppm | Must be less than ±4 ppm to comply with Japanese 12.5 kHz channel spacing regulations (ARIB STD-T67). | ||||
Crystal operation | Parallel | C4 and C5 are loading capacitors. See Section 5.16 for details. | ||||
Crystal load
capacitance |
4.9 to 6 MHz, 22 pF recommended | 12 | 22 | 30 | pF | |
6 to 8 MHz, 16 pF recommended | 12 | 16 | 30 | pF | ||
8 to 19.6 MHz, 16 pF recommended | 12 | 16 | 16 | pF | ||
Crystal oscillator
start-up time |
4.9152 MHz, 12 pF load | 1.55 | ms | |||
7.3728 MHz, 12 pF load | 1.0 | ms | ||||
9.8304 MHz, 12 pF load | 0.90 | ms | ||||
14.7456 MHz, 16 pF load | 0.95 | ms | ||||
17.2032 MHz, 12 pF load | 0.60 | ms | ||||
19.6608 MHz, 12 pF load | 0.63 | ms | ||||
External clock signal drive, sine wave | 300 | mVpp | The external clock signal must be connected to XOSC_Q1 using a DC block (10 nF). Set XOSC_BYPASS = 0 in the INTERFACE register when using an external clock signal with low amplitude or a crystal. | |||
External clock signal drive, full-swing digital external clock | 0 – VDD | V | The external clock signal must be connected to XOSC_Q1. No DC block shall be used. Set XOSC_BYPASS = 1 in the INTERFACE register when using a full-swing digital external clock. |