Table of Contents
Advertisement
Départ. Technical support- CM640
PHILIPS Consumer
Communications
Centre du Mans
Modulation and Bit Rate
v
v
Radio Frequency Tolerance
The transmitted initial center frequency accuracy must be +/-75 kHz from FC.
The initial frequency accuracy is defined as being the frequency accuracy before any information is transmitted.
Note that the frequency drift requirement is not included in the +/-75 kHz.
Physical Links
SCO
:
ACL
:
PHILIPS ELECTRONICS N.V. 1999
All rights reserved. Reproduction in whole
or in part is prohibited without the written
consent of the copyright owner.
PROCEDURE
Symbol Rate : 1Ms/s +/-20ppm
GFSK (Gaussian Frequency Shift Keying) with a BT=0.5
Binary One
Binary Zero
Maximum frequency deviation
Type of Packet
Type of Packet
One slot package
Three slot package
Five slot package
Maximum drift rate
Note 1 : The maximum drift rate is allowed anywhere in a packet.
Two link types
Synchronous Connection - Oriented (SCO) link
Asynchronous Connection - Less (ACL) link
A point-to-point link between a master and a single slave in the piconet .
A point-to-multipoint link between the master and all the staves participating on the piconet.
Service Repair Support
: Positive frequency deviation
: Negative frequency deviation
: shall be between
140kHz and 175kHz
(greater than 115kHz)
Frequency Drift
Frequency Drift
+/- 25 kHz
+/- 40 kHz
+/- 40 kHz
1)
400 Hz/µs
COMPANY RESTRICTED
VY-V-640-82x
Page : 26 of 71
Langue : EN
Date : 25/02/03
VY-V-640-82x
Advertisement
Table of Contents
