RV-3028-C7-32.768KHZ-1PPM-TA-QA RV-3028-C7-32.768KHZ-1PPM-TA-QC RV-3028-C7-EVALUATION-BOARD RV-3028-C7TAQA RV-3028-C7TAQC RV-3028-C8-32.768kHz-1PPM-TA-QA RV-3028-C8-32.768kHz-1PPM-TA-QC RV-3029-C2 RV-3029-C2 32.768KHZ RV-3029-C2 32.768KHZ OPTION A TB QA