User manual

UNiKA
PRO USB
User Manual
5
CT7601SR USB/DSD AUDIO BRIDGE
OVERVIEW
CT-7601SR is a single chip audio USB 2.0/1.1 playback
and record bridge.
It compatible with Windows, Mac OS, iOS and Android
and plug and play no need extra driver.
AUDIO DECODING CAPACITY
• PCM (Stereo) support up to 192KHz/32bit through USB port.
• DSD (Native) support 2x bandwidth through USB port.
CS43131 DIGITAL AUDIO CONVERTER & HA
OVERVIEW
The CS43131 combines a next generation, low power audio DAC with a high-fidelity
headphone amplifier to provide a superior system-level audio performance without
draining battery life. This IC minimizes board space requirements while enabling
performance and features to drive design differentiation. The CS43131 can support
excellent audio quality with a wide range of headphones. This IC can drive 2 VRMS of
output into 600 Ω high impedance headphones with an inter-channel isolation of >110
dB, and 30mW into 32 Ω low impedance headphones. To minimize pre-echo and ringing
artifacts, the CS43131 is designed with proprietary digital-interpolation filters that
support ve selectable digital lter responses. Filtering options include low group delay
with pseudo-linear phase and a fast or slow roll-off. Volume matching of the analog
output levels and channel mixing enable a seamless transition between the DSD and
PCM playback paths. The onboard low noise, ground-centered headphone amplifier
provides proprietary AC impedance detection to support headphone fingerprinting to
provide a consistent and transparent audio experience for the end user regardless
of transducer impedances or frequency responses. The amplifier also supports
adaptive post processing for customer bundled and third party headphones/headsets.
An integrated auxillary audio input
and "click-less" switch is provided for
non-high-delity use cases.