Hi,
I have a customer susing the Anaren A8520E24A91 module. They want a small low cost Codec for the fron end - any recommendations other than the AIC3101 or AIC3254/
Cheers
Calum
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Hi,
I have a customer susing the Anaren A8520E24A91 module. They want a small low cost Codec for the fron end - any recommendations other than the AIC3101 or AIC3254/
Cheers
Calum
Hi Calum,
I'm working this now... looking at the CC8520 datasheet, they will need two channels of 16-bit I2S audio input from the codec.
Can you please advise:
1) Do they need heaphone or speaker drivers on the codec?
2) Is the codec going to be line- or battery-powered?
Bryan, Centralized AFA
Hey Bryan,
This is planned to be a unidirectional flow. They wil need a microphone at one end and will digitally store the audio at the other end. This will be battery powered. The package needs to be something that can be hand soldered - so no QFN/BGA
Cheers
Calum
Calum
I'll have to correct my last post. The CC8520 can accept multiple types of digital audio input signals, not just 16-bit I2S. That being said, we have a few devices that might work. All have exposed pins for hand-soldering:
PCM3060: 24-bit Asynchronous Stereo Audio Codec with 96/192kHz sampling rate (TSSOP-28)
Product Folder: http://www.ti.com/product/pcm3060
Data sheet (PDF): http://focus.ti.com/lit/ds/slas533b/slas533b.pdf
TLV320AIC23B: Low-Power Stereo CODEC with Mic Preamp (TSSOP-28)
Product Folder: http://www.ti.com/product/tlv320aic23b
Data sheet (PDF): http://focus.ti.com/lit/ds/slws106h/slws106h.pdf
PCM3010: 24-bit Stereo Audio Codec 96kHz (ADC) 192 kHz (DAC) with Single-Ended Analog Input/Output (SSOP-24)
Product Folder: http://www.ti.com/product/pcm3010
Data sheet (PDF): http://focus.ti.com/lit/ds/sles055/sles055.pdf
PCM3000: Stereo CODEC with line-out (S/W Control)(SSOP-28)
Product Folder: http://www.ti.com/product/pcm3000
Data sheet (PDF): http://focus.ti.com/lit/ds/sbas055a/sbas055a.pdf
The TLV320DACAIC23B seems like the closest match out of the bunch, and the integrated mic preamps are a plus. With regards to serial audio transfer, some of these codecs are master mode, some are slave mode. The CC8520 should be compatible with both.
For your reference, here is a direct link to the CC85xx product page: http://www.ti.com/ww/en/analog/cc8520/index.shtml?DCMP=hpa_rf_cc8520&HQS=Other+PA+CC8520
Best,
Bryan
Hey Bryan,
I assume you meant the TLV320AIC23BIPWRG4 and not a TLV320DACAIC23B?
Is there a dev kit or eval kit they could use to hook the TLV320AIC23BIPWRG4 to the A8520E24A91GM?
Cheers
Calum
Yep, the TLV320AIC23B IPWRG4 is the one. The TLV320DAC23 is a DAC, not a codec.
The TLV320AIC23EVM2 has the codec and DAC on the same board, but I'm checking to see if a USB adapter is necessary. They would also have to jump off the IC pins to get to the serial audio output. I'll get back - hopefully this week - with a better solution if we have one.
I want to verify the pins we are going to wire up on this TI Codec to the Anaren module.
I need to verify these are the correct pins:
For setting Mic In Stage 1 gain, 0 ohm – 50k ohm is the gain range? I assume all Stage 2 gain controls can only be achieved through the PurePath dev kit?
For the PW(TSSOP-28) package, these are correct. If using the TLV320AIC23B eval board, I'm pretty certain they need to connect the I2S and GND/PWR lines to the CC8520 module. Keep in mind, I2S is a three-wire interface - they will need to make sure DOUT,LRCOUT, and BCLK are connected to the CC8520.
For the first-stage gain, using a 0-ohm resistor in series with the MICIN pin will give you the highest gain (G1=5). As the series resistance increases, the MICIN gain decreases. There is a second-stage input gain control on the 320AIC23B that is software-programmable. See section 3.1.3. This is SPI or I2C (2-wire) programmable.
Also got some more info on the TLV320AIC23EVM2 demo board. It is populated with the 320AIC23 device, but can also be used to eval the 320DAC23. The I2S data and power can be accessed from the 20-pin header.