11/23

STLC2500

Technical perspective - Faster Connection

The Faster Inquiry functionality is based on a removed/shortened random back off and also a new Inter-

laced Inquiry Scan scheme.

The Faster Page functionality is based on Interlaced Page Scan.

6.5.4

V1.2 detailed functionality - Quality of Service

User Perspective - Quality of Service

Small changes to the BT1.1 spec regarding Quality of Service make a large difference.

Allowing all QoS parameters to be communicated over HCI to the link manager enables efficient band-

width management. Here after a short list of user perspectives:

1) Flush timeout: enables time-bounded traffic such as video streaming to become more robust when the

channel degrades. It sets the maximum delay of an L2CAP frame. It does not enable multiple streams

in one piconet, or heavy data transfer at the same time.

2) Simple latency control: allows the Host to set the poll interval. This provides support for HID devices

mixed with other traffic in the piconet.

6.6

Processor and memory

– ARM7TDMI

– On chip RAM, including provision for patches

– On chip ROM, preloaded with SW up to HCI

7

GENERAL SPECIFICATION

All the provided values are specified over the operational conditions (VDD and temperature) according to

the Bluetooth 1.1 and 1.2 specifications unless otherwise specified.

7.1

Receiver

To be compliant with the Bluetooth norm, an external RF filter is required to provide minimum -17dB of

attenuation in the band: 30MHz - 2000MHz and 3000MHz - 12.75GHz. All specifications below are given

at pin level and over temperature unless otherwise specified.

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

RFin

Input frequency range

2402

2480

MHz

RXsens

Receiver Sensitivity

(Clean transmitter)

@ BER 0.1%

-85

dBm

RXmax

Maximum useable input signal

level

@ BER 0.1%

+15

dBm

Receiver interferer performance @BER 0.1%

Co-channel interference

@ Input signal

strength = -60dBm

9dB

Adjacent (

±1MHz) interference

@ Input signal

strength = -60dBm

-2

dB

Adjacent (+2MHz) interference

@ Input signal

strength = -60dBm

-35

dB

Adjacent (-2MHz) interference

@ Input signal

strength = -67dBm

-25

dB