DAC5311: Pin Assignment question for DAC5311IDCKT

Hi TI Team,

Thank you for your support.

One of our customers asking,

*Which way is the Pin 1 for DAC5311IDCKT?

Reason is Datasheet show Pin 1.

2.0V to 5.5V, 80μA, 8-, 10-, and 12-Bit, Low-Power, Single-Channel, DACs in SC70 datasheet (Rev. C) (ti.com)

But What actually he got is no Dot on the package.

So couldn't ID where the Pin 1 is.

Could you give some advice?

Thank you so much.
Kind Regards,
Takashi Matsumura

T4530451