--:--:-- UTC
ADC / DAC / 192 kHz / CLEAN POWER / PLUG AND PLAY / SDR7020

PzN-7020
AudioIO

An own-design board with an ADC (audio in) and a DAC (audio out) for the SDR7020. It connects to the GPIO of the 7020 with one ribbon cable. No software, nothing to set up: plug and play.

With its own clean power supply on board: no extra noise or hum. You only need one good power supply for everything, for example a 3 A Raspberry Pi 4 adapter.

The AudioIO with the ribbon cable on the SDR7020
The AudioIO on the SDR7020, with the ribbon cable
The PzN-7020-AudioIO v0.2
The PzN-7020-AudioIO v0.2: at the front the RCA jacks in and out, with the attenuator jumpers; at the back the ribbon cable header
WHAT IT DOES

ON THE BOARD

ADCPCM1861 (Texas Instruments), 110 dB, 192 kHz
DACPCM5102A (Texas Instruments), 112 dB
Clockown crystal oscillator 49.152 MHz
Powerfrom the 5 V of the 7020, filtered, separate regulators for ADC and DAC
ConnectionsRCA L/R in, RCA L/R out, 20-way to the GPIO

CONNECTING

17020 off
2ribbon cable on: red wire on the side of the network jack
37020 without socket: solder on the loose header, key slot facing the inside
47020 on, start the program
PHOTOS
Red wire on the AudioIO
On the AudioIO: red wire on the side of the large electrolytic capacitor
Red wire on the 7020
On the 7020: red wire on the side of the network jack
Loose header above the socket of the 7020
The loose header with the ribbon cable, above the socket of the 7020
Attenuator jumpers
The attenuator jumpers: 0, −6 and −20 dB
ORDER
PzN-7020-AudioIO · € 50
Including ribbon cable and loose header, and shipping within the Netherlands.
Outside the Netherlands, shipping costs are added.
Orders go through the Telegram group.
ORDER VIA TELEGRAM
MANUAL
📖 Manual PzN-7020-AudioIO v0.2
Connecting the ribbon cable, the loose header and the jumpers, with photos.
📖 MANUAL (PDF)