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ADC12DJ3200: PLLalarm

Part Number: ADC12DJ3200

Hello,

Our  customer used ADC12DJ3200 and read the register 0x208= 0110_1100, it indicated that the PLL is lock, but the register 0x2C1 is 0001_1000 which indicated that PLL lost lock alarm. Why? 

In addition, the FG calibration is also unsuccessful during the initialization according to 8.3 Initialization Set Up section. Below is  his configuration registers sequences:

0000 b0
0200 00
0061 00
0201 0d
0202 1f
0030 ff
0031 ff
0032 ff
0033 ff
0062 05
0061 01
0200 01
006c 00
006c 01
0219 00
002a 06
0029 20
0029 60(at this time open the PLL to send SYSREF to ADC)
0029 70
802c 00(read)
802d 00(read)
802e 00(read)
0029 63
0220 00
0221 00
0222 8c
0223 48
...(until register25B)
0219 00
0219 01
02c2 00

Best regards

Kailyn