Design solutions that pursue the sound quality and experience you need
Broadcast-grade audio processors demand multi-channel I/O, low-latency routing, and reliable dynamic processing. The ShanJing BP2668Dx integrates four 32-bit high-performance ADCs and four DACs, making it straightforward to build a flexible input/output matrix for mixing consoles, conference hosts, and public-address systems.
The BP2668Dx is housed in a QFN68 8×8 mm package and provides four 32-bit ADC channels with SNR ≥105 dB plus four DAC channels with SNR ≥112 dB. This level of integration replaces multiple discrete converters and reduces clock-synchronization effort. With 39 GPIOs and a 30-channel SAR-ADC, the chip also supports channel selection, level detection, and front-panel interaction.
A well-designed audio matrix needs consistent sample rates, shared clock domains, and deterministic routing latency. The BP2668Dx uses an on-chip PLL to keep all ADCs and DACs synchronized, eliminating the master/slave jitter issues common in multi-chip designs. Keep microphone traces short near the ADC pins, and reserve RC filtering and differential-to-single-ended stages at the DAC outputs to match different downstream amplifiers.
On the PCBA, split analog and digital power rails and provide a solid ground plane beneath the exposed pad. Liwei Electronics has verified the BP2668Dx broadcast-audio reference design through multi-channel loopback and extended temperature-cycle testing, ensuring 24/7 operation.
Q: How many analog audio channels does the BP2668Dx support?
A: It includes four ADC and four DAC channels on-chip. External multiplexers or expanders can increase the channel count for small-to-mid-size broadcast processors.
Q: How are multiple ADC channels kept synchronous?
A: All ADCs and DACs share the BP2668Dx internal PLL, so no external clock distribution circuit is required for sample synchronization.
Q: Does the solution support USB audio return to a PC?
A: Yes. The integrated USB 2.0 HS OTG interface enables audio return, firmware updates, and parameter configuration from a host PC.
Request a Quote from Liwei Electronics for a custom BP2668Dx broadcast audio processor PCBA.
Liwei Electronics (Shenzhen) specializes in audio headset and electronic solution design, with 12 years of experience and 300+ customers. Contact us for a custom BP2668Dx broadcast audio processor PCBA and Request a Quote.
Keywords: ShanJing BP2668Dx, broadcast audio processor, multi-channel ADC DAC, audio I/O matrix, Liwei Electronics
