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DM3725: What pcm ic can match best with DM3725 audio pcm interface ?

Part Number: DM3725
Other Parts Discussed in Thread: TLV320DAC3100, TLV320ADC3100, TLV320AIC3106, TLV320AIC3100

We use a modem module that use DM3725 as cpu and audio interface(mic , speaker) is pcm mode.

so we need select a mic ic and speaker(PA) ic as audio input and output.Now we have selected tlv320dac3100 as speaker(PA) ic and have success output midi audio and voice.

But mic input fail to modem.We try to use ADI's ic ADAU7002 and mic(ICS-52000, F4-(A)HDMOE-J098R3627-5P) for input , but all fail.

Now we want to select tlv320adc3100 as mic input ic.

Scheme as following( two ends communication)

 

Input : Adc ic need to support one channel mic input to DM3725.

Modem ic : DM3725.

Ouput: Dac need to support one speaker ,and need switch between midi output and DM3725 output .

 

We questions :

1.What ic (pcm input and output ) can match DM3725's audio pcm interface(fs,bclk,Dr,Dx) best ,please recommand us.

2. Now we use adc3100 and dac3100 two ic, Could you recommand us one ic that can instead of these two ic in future?

3. We now use adc3100 and adc3100 at this plan,is it the best?