CP3D-WL-2.4G-0010
PROFESSOR ¡V Transmitter Modulation
Direct Sequence Spread Spectrum
Audio Baseband
1. Overview:
PROFESSOR-Transmitter Modulation(TM)
CP3D-WL-2.4G-0010 is a direct sequence spread spectrum
(DSSS) baseband transmitter modulation that is suitable
for the ISM-band wireless audio application. The PROFESSOR-TM
integrates microphone and speaker interface for wireless
audio transmission. In addition, the PROFESSOR-TM also
provides the control of RF channel selection and calibration
for RF carrier leakage in order to decrease the interference.
2. Key Feature
1) Provide direct sequence spread spectrum(DSSS) modulation
2) Provide audio transmission
3) Audio sampling rate is CD(44.1KHz) or DVD(48KHz) quality
4) Input signal: Audio 20 Hz ~ 20 KHz
5) Data rate can be up to 2 Mbps(MCLK @ 44MHz)
6) Demand voltage: 3.5 ~ 4.2 V(DC)
7) Electricity: 400 ¡Ó 20 mA
8) Frequency band: 2.412 ~ 2.484 GHz
9) Output power: 10.5dBM
10) Eight channels are selectable
3. PIN Configuration
4. PIN Description
5. Transmitted Spectrum & Carrier Frequency
6. Caution
6.1 An additional 10m/25V Capacitor Filter is
functionally added at the front end of AIR or AIL pin. 6.1 The peak-to-peak voltage of audio
input signal is limited to 1.6Vpp. The larger signal will
cause the distortion. 6.1 As an additional voltage (3V) is
supplied to control the channel, the digit of CH [0, 1,
2] will show ¡§1¡¨; and if not, the digit of CH [0, 1, 2]
will show ¡§0¡¨.
