Infinity Classia Series Service Manual page 42

PSW310W subwoofer Classia Series
High–Performance 2.4 GHz Digital Wireless Audio Solution
G D
ENERAL ESCRIPTION
The Squeak 1.5 WHAM2 (Wireless HiFi Audio Module) is a
highly integrated module package that provides a complete
solution for wireless audio. Squeak 1.5, using the Micro Linear
ML2724 radio transceiver front end and the XInC2 wireless
processor, is ideal for high performance wireless audio
applications such as home theater, stereo and outdoor
speakers, and microphones. Squeak 1.5 is available in either a
25 or 50 meter indoor range WHAM2 module.
The WHAM2 digitizes a 2-channel stereo input signal, sends it
across a robust 2.4 GHz radio frequency link, and converts the
signal back to a stereo analog signal for use at a remote
location. WHAM2 is also available with a Digital Audio Serial
Interface (DASI) port that can be configured to interface with
any SPI supporting device (I
ADCs, DACs, digital audio streams such as S/P-DIF or USB. A
development kit is required to modify the DASI port and/or to
modify application source code firmware.
B D
LOCK IAGRAM
DO4918
Squeak 1.5 WHAM2 [WH4924 – WH4931]
2
S, left- or right-justified), including
F
EATURES
•
Analog or Digital Audio Input/Output
•
48 kHz, 16-bit digital, stereo audio transmission
•
Digital volume control, manual mute
•
Auto mute (when signal lost), digital noise gate
•
2.4 GHz wireless at 1.536 Mbps
•
Robust Quality of Service (QoS)
•
Advanced error protection protocols with hardware
forward error correction, adaptive frequency hopping, and
walking frequency diversity
•
25 or 50 meter indoor range
•
Up to 6 transmitters in specified range area
•
Low latency; firmware selectable 15 – 64 ms
•
Duplex utility control channel at 1.5 kbps
•
Programmable for custom features (with development kit)
O I
RDERING NFORMATION
TX
Analog I/O
RX
TX
Digital I/O
RX
2-node
Evaluation Kit
Add-on node
Dev. Kit Upgrade from any eval. kit
41
25 meter 50 meter
WH4924 WH4928
WH4925 WH4929
WH4926 WH4930
WH4927 WH4931
EV4931 EV4937
EV4933 EV4939
DK4909