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WT32 Schematic ( PDF Datasheet ) - Bluegiga Technologies

Teilenummer WT32
Beschreibung Bluetooth Audio Module
Hersteller Bluegiga Technologies
Logo Bluegiga Technologies Logo 




Gesamt 30 Seiten
WT32 Datasheet, Funktion
WT32
DATA SHEET
Tuesday, 25 August 2009
Version 1.5






WT32 Datasheet, Funktion
WT32 Bluetooth® Audio Module
DESCRIPTION:
WT32 is the latest generation of Bluetooth
modules. It provides highest level of
integration with integrated 2.4GHz radio, DSP,
battery charger, stereo codec, and antenna
ready to hit mono and stereo audio
applications. WT32 is also ready to support the
latest Bluetooth 2.1 standard.
The embedded DSP core allows enhancement
of the product with features such as advanced
audio decoding (MP3, AAC, AAC+), echo
cancellation, noise reduction, and data
manipulation.
Bluegiga’s flexible iWRAP firmware enables
device manufacturers to easily add wireless,
secure, and standard-based Bluetooth
connectivity into new or existing applications
with very limited development and
manufacturing effort. WT32 is Bluetooth End
Product, CE and FCC certified meaning that
OEMs do not need to apply any additional
certifications.
APPLICATIONS:
High quality wireless stereo headsets
Wireless mono headsets
Wireless speakers
USB multimedia dongles
MP3 players
VoIP handsets
Hands-free car kits
FEATURES:
Plug n’ Play Bluetooth Solution for
Mono and Stereo Audio Solutions
Integrated DSP, Stereo Codec, and
Battery Charger
Integrated Antenna and W.FL
Connector
Bluetooth 2.0 Compliant and
Bluetooth 2.1 Ready
Bluetooth End Product, CE and FCC
Qualified
Class 2 - Range up to 30 Meters
Industrial Temperature Range from
-40C to +85C
Low Power Consumption
iWRAP™ Firmware for Controlling
Connections and Configuring Settings
Supported Bluetooth Profiles: A2DP,
AVRCP, HFP, HFP-AG, SPP, OPP and
HID
6

6 Page









WT32 pdf, datenblatt
Battery charger
Battery charger
VDD_CHG
Charging mode (VDD_BAT rising to 4.2 V)
Supply current (a)
Battery trickle charge
current (b) (c)
Maximum battery fast
charge current (d) (c)
Maximum setting
Minimum setting
Headroom > 0.7 V (e)
Headroom = 0.3 V
Maximum battery fast
charge current (d) (c)
Headroom > 0.7 V
Headroom = 0.3 V
Trickle charge voltage threshold
Float voltage (with correct trim value set),
VFLOAT(f)
Float voltage trim step size (f)
Battery charge termination current, as a
percentage of the fast charge current
Min
4.5
-
-
-
-
-
-
-
-
4.17
-
5
Standby Mode (BAT_P falling from 4.2V)
Supply current (a)
Battery current
Battery recharge hysteresis (g)
-
-
100
Shutdown Mode (VDD_CHG too low or disabled by firmware)
VDD_CHG under-
voltage
threshold
VDD_CHG rising
VDD_CHG falling
-
-
VDD_CHG - BAT_P
lockout
threshold
VDD_CHG rising
VDD_CHG falling
-
-
Supply current
-
Battery current
-1
Typ
-
4.5
14
4
140
120
40
35
2.9
4.2
50
10
1.5
-5
-
3.9
3.7
0.22
0.17
1.5
-
Max
6.5
6
-
-
-
-
-
-
-
4.23
-
20
2
-
200
-
-
-
-
2
0
Unit
V
mA
mA
mA
mA
mA
mA
mA
V
V
mV
%
mA
μA
mV
V
V
V
V
mA
μA
(a) Current into VDD_CHG - does not include current delivered to battery (I VDD_CHG - I BAT_P)
(b) BAT_P < Float voltage
(c) Charge current can be set in 16 equally spaced steps
(d) Trickle charge threshold < BAT_P < Float voltage
(e) Where headroom = VDD_CHG - BAT_P
(f) Float voltage can be adjusted in 15 steps. Trim setting is determined in production test and must be loaded into the battery
charger by firmware during boot-up sequence
(g) Hysteresis of (VFLOAT - BAT_P) for charging to restart
Table 4: Battery charger characteristics
12

12 Page





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