SC14WAMDECT SF
Wireless Audio Module
General description
The SC14WAMDECT SF is a Cordless Audio Module
with an integrated baseband, radio transceiver, power
amplifier and crystal to be used in cordless microphone
applications in the DECT frequency band. This module
is intended for users with little or no DECT experience,
who wish to make a wireless audio system.
The module can be configured for various audio appli-
cations. A
Public Address System
has two portable
parts (PP) with two microphones and one fixed part
(FP) configured as a receiver and integrated into a
loudspeaker. Another application is a
Tour Guide Sys-
tem
where one a microphone (FP) broadcasts to up to
128 receivers (PP) with an integrated loudspeaker or a
headset connected. The SC14WAMDECT SF module
is suitable for both FP and PP usage: a hardware pin
selects the function of the module.
The SC14WAMDECT SF module is pre-approved for
use in all countries that use the DECT frequency band,
as well as the DECT 6.0 frequency band used in North
America.
FINAL
Features
Pre-programmed and ready-to-use module
Antenna embedded, support for external antennas
High quality audio sampled at 25.6 kHz
Latency: 14.2 ms (PA mode), 18.3 ms (TG mode)
UART data transfer (up to 1 kbit/s) in TG mode
Access code for secure registration in TG mode
ETSI (DECT) and FCC (DECT 6.0) certified
Japan DECT (J-DECT) pre-certified
Supports 1.9 GHz and 1.7 GHz DECT bands
Receiver sensitivity < -93 dBm
Transmit power EU: 23 dBm, USA: 20 dBm,
JPN: 20 dBm
Power supply voltage: 2.1 V to 3.45 V
Supports NiMH and Alkaline batteries
Small form factor (19.6 mm x 18.0 mm x 2.7 mm)
Operating temperature range: -40 °C to +85 °C
Applications
Public Address System with one or two microphones
(transmitter) and one loudspeaker (receiver)
Tour Guide System with one microphone (transmit-
ter) and up to 128 headsets (receiver)
________________________________________________________________________________________________
System diagram
PP
Receiver
FP
1 or 2 transmitters
PP
Public Address System
Transmitter
FP
PP
1 to 128 receivers
PP
PP
Tour Guide System
Datasheet
CFR0011-120-00-FM Rev 5
Revision 3.0
1 of 36
23-Jul-2015
© 2013 Dialog Semiconductor
SC14WAMDECT SF
Wireless Audio Module
Table of Contents
1.0 Connection diagram. . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . 4
2.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 GLOSSARY AND DEFINITIONS . . . . . . . . . . . 7
3.0 Wireless Audio Module functions. . . . . . . . . . . . . 8
3.1 DECT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 MICROPHONE CONFIGURATION . . . . . . . . . 8
3.3 LOUDSPEAKER CONFIGURATION . . . . . . . . 9
3.4 FUNCTIONAL OVERVIEW . . . . . . . . . . . . . . . 10
4.0 Functional description. . . . . . . . . . . . . . . . . . . . . 11
4.1 AUDIO CONFIGURATION . . . . . . . . . . . . . . . .11
4.1.1 Microphone connection . . . . . . . . . . . . . .11
4.1.2 Audio equalisation . . . . . . . . . . . . . . . . . .11
4.2 POWER MANAGEMENT . . . . . . . . . . . . . . . . .11
4.3 OUT-OF-RANGE HANDLING . . . . . . . . . . . . . .11
4.4 PREAMBLE ANTENNA DIVERSITY. . . . . . . . .11
4.5 REGISTRATION . . . . . . . . . . . . . . . . . . . . . . . 12
4.5.1 Handling product identities . . . . . . . . . . 12
4.5.2 Access code . . . . . . . . . . . . . . . . . . . . . 12
4.6 DEREGISTRATION . . . . . . . . . . . . . . . . . . . . 12
4.7 DATA TRANSFER. . . . . . . . . . . . . . . . . . . . . . 12
5.0 Usage guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 PUBLIC ADDRESS MODE . . . . . . . . . . . . . . . 14
5.1.1 Microphone (PP) . . . . . . . . . . . . . . . . . . 14
5.1.2 Loudspeaker (FP) . . . . . . . . . . . . . . . . . 14
5.1.3 LED indication . . . . . . . . . . . . . . . . . . . . 14
5.1.4 Volume control . . . . . . . . . . . . . . . . . . . . 14
5.1.5 Accessory input/output . . . . . . . . . . . . . 14
5.2 TOUR GUIDE MODE . . . . . . . . . . . . . . . . . . . 14
5.2.1 Microphone (FP) . . . . . . . . . . . . . . . . . . 14
5.2.2 Headphone (PP) . . . . . . . . . . . . . . . . . . 14
5.2.3 LED indication . . . . . . . . . . . . . . . . . . . . 14
5.2.4 Volume control . . . . . . . . . . . . . . . . . . . . 14
5.2.5 Accessory input/output . . . . . . . . . . . . . 15
5.2.6 API (Tour Guide mode only) . . . . . . . . . 15
5.3 REGISTRATION . . . . . . . . . . . . . . . . . . . . . . . 15
5.4 DEREGISTRATION . . . . . . . . . . . . . . . . . . . . 15
5.5 BATTERY LOW DETECTION . . . . . . . . . . . . . 15
5.6 ANTENNA OPERATION . . . . . . . . . . . . . . . . . 15
5.6.1 Internal antenna only . . . . . . . . . . . . . . . 15
11.0 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.0 Example application diagrams . . . . . . . . . . . . . . 27
9.0 Notices to OEM. . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.1 FCC REQUIREMENTS REGARDING THE END
PRODUCT AND THE END USER . . . . . . . . . 29
9.2 INDUSTRY CANADA REQUIREMENTS RE-
GARDING THE END PRODUCT AND THE END
USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.3 END APPLICATION APPROVAL . . . . . . . . . . 30
9.4 SAFETY REQUIREMENTS. . . . . . . . . . . . . . . 30
10.0 Package information . . . . . . . . . . . . . . . . . . . . . 31
10.1 SOLDERING PROFILE . . . . . . . . . . . . . . . . . 31
10.2 MOISTURE SENSITIVITY LEVEL (MSL) . . . 31
10.3 COPPER PAD, SOLDER OPENING AND
STENCIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10.4 MECHANICAL DIMENSIONS . . . . . . . . . . . . 34
5.6.2 Internal and external antenna with FAD. 15
6.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . 16
6.3 OPERATING CONDITIONS . . . . . . . . . . . . . . 17
6.4 SUPPLY CURRENTS . . . . . . . . . . . . . . . . . . . 17
6.5 DIGITAL INPUT/OUTPUT PINS . . . . . . . . . . . 18
6.6 ANALOG FRONT END . . . . . . . . . . . . . . . . . . 19
6.7 AUDIO PERFORMANCE . . . . . . . . . . . . . . . . 21
6.8 BASEBAND PART . . . . . . . . . . . . . . . . . . . . . 22
6.9 RADIO (RF) PART . . . . . . . . . . . . . . . . . . . . . 23
6.10 RF POWER SUPPLY . . . . . . . . . . . . . . . . . . 23
6.11 RF CHANNEL FREQUENCIES. . . . . . . . . . . 24
7.0 Design guidelines. . . . . . . . . . . . . . . . . . . . . . . . . 25
7.1 PCB DESIGN GUIDELINES . . . . . . . . . . . . . . 25
7.2 MODULE PLACEMENT ON THE MAIN BOARD
25
7.3 PATTERN FOR PIN 79 ON THE MAIN BOARD.
26
7.4 PRECAUTIONS REGARDING UNINTENDED
COUPLING . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
FINAL
Datasheet
CFR0011-120-00-FM Rev 5
Revision 3.0
2 of 36
23-Jul-2015
© 2013 Dialog Semiconductor
SC14WAMDECT SF
Wireless Audio Module
1.0
Connection diagram
FINAL
79
GND
P0
RFP0
P0n
RFP0n
GND
VREFp
MICp
NC
NC
VREFm
LSRp
LSRn
GND
ACCESS_1
ACC_IN
SOCp
SOCn
GND
GND
NC
CHARGE_CTRL
CHG_DET/PON
NC
NC
CP_VOUT1
NC
TP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
85
87
24
83
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
88
80
GND
82
81
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
GND
GND
GND
RF0
GND
RF1
GND
GND
GND
ACCESS_2
ACCESS_3
ACCESS_4
ACCESS_5
ACCESS_0
VBATIN
VBATIN
VBATSW
VDDOUT
GND
LED_GRN
LED_RED1
NC
NC
NC
NC
JTAG
RSTn
SC14WAMDECT SF
84
ACC_OUT
REGION2
RF_POWER
GND
PON
GND
LED_RED2
GND
86
GND
GND
GND
GND
VOL_DN
VOL_UP/MUTE
Figure 1: Connection diagram (top view, leads face down)
Table 1: Ordering information
Part number
SC14WAMDECT SF01T
Note 1:
MOQ = 600 pcs.
Package
MOD88
Size (mm)
18 x 19.6
Shipment form
Tray
UART_RX
MAS_SLV
UART_TX
REGION1
FP_PP
GND
NC
NC
NC
NC
Pack quantity
60
(Note 1)
Datasheet
CFR0011-120-00-FM Rev 5
Revision 3.0
3 of 36
23-Jul-2015
© 2013 Dialog Semiconductor
SC14WAMDECT SF
Wireless Audio Module
1.1 PIN DESCRIPTION
Table 2: Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Module
Pin name
(Note 2)
GND
P0
RFP0
P0n
RFP0n
GND
VREFp
MICp
NC
NC
VREFm
LSRp
LSRn
GND
ACCESS_1
ACC_IN
SOCp
SOCn
GND
GND
NC
CHARGE_CTRL
CHG_DET/
PON
In/
Out
-
O
O
O
O
-
O
I
-
-
-
O
O
-
I
I
I
I
-
-
-
O
I
Iout
Reset
Drive
State Description
(mA)
(Note 3)
-
8
8
8
8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
-
-
Hi-Z
Hi-Z
Hi-Z
Hi-Z
-
I
I
-
-
-
O
O
-
I
I-PU
I
I
-
-
-
O-0
I-PD
(270k
fixed
pull-
down)
-
-
I
-
-
I-PD
(270k
fixed
pull-
down)
-
-
Ground
Control port for FAD. See
section 5.6
Control port for FAD. See
section 5.6
Control port for FAD. See
section 5.6
Control port for FAD. See
section 5.6
Ground
Positive microphone supply voltage.
Positive microphone input.
Must be unconnected.
Must be unconnected.
Negative microphone reference (star point), connect to GND.
Positive loudspeaker output.
Negative loudspeaker output.
Ground
TG mode: Access code bit 1.
PA mode: Must be unconnected.
Transmitter (PA PP or TG FP): Accessory input
Receiver (PA FP or TG PP): Must be unconnected.
Battery state of charge positive input. Not used, connect to GND.
Battery state of charge negative input. Not used, connect to GND.
Ground
Ground
Must be unconnected.
Charge control output. Not used, leave unconnected.
PP: Charge Detect input.
FP: Power On pushbutton input:
When OFF and short press: switch ON.
When ON and 2 s press: registration.
When ON and 5 s press: power OFF.
When ON and 10 s press: deregistration.
Must be unconnected.
Must be unconnected.
Must be unconnected.
Must be unconnected.
Ground
PP: Power On & Toggle Mute pushbutton input.
When OFF and short press: switch ON.
When OFF and 2 s press: switch ON and registration.
When ON and short press: toggle mute.
When ON and 2 s press: power OFF.
FP: Must be unconnected.
Ground
Ground
FINAL
24
25
26
27
28
29
NC
NC
CP_VOUT1
NC
GND
PON
-
-
O
-
-
I
-
-
-
-
-
-
30
31
GND
GND
-
-
-
-
Datasheet
CFR0011-120-00-FM Rev 5
Revision 3.0
4 of 36
23-Jul-2015
© 2013 Dialog Semiconductor
SC14WAMDECT SF
Wireless Audio Module
Table 2: Pin description (Continued)
Pin
32
33
34
Module
Pin name
(Note 2)
ACC_OUT
MAS_SLV
FP_PP
In/
Out
O
I
I
Iout
Reset
Drive
State Description
(mA)
(Note 3)
8
-
-
-
I-PD
I-PD
Receiver (PA FP or TG PP): Accessory output
Transmitter (PA PP or TG FP): Must be unconnected.
Configuration of PA and TG mode.
MAS_SLV
FP_PP
Mode
H
L
PA receiver
H
H
PA transmitter
L
L
TG transmitter
L
H
TG receiver
PP: Volume Down input. Connect to Volume Down pushbutton.
FP: Must be unconnected.
PP: Volume Up input. Connect to Volume Up pushbutton.
FP: Mute input. When this pin is pulled LOW the FP will mute all
audio to/from the PP.
Must be unconnected.
Ground
Must be unconnected.
Selection of DECT RF frequency (FP and PP).
REGION1
REGION2
RF BAND
L
L
DECT 6.0 (USA)
L
H
Reserved
H
L
Japan DECT
H
H
European DECT
PA FP: Red LED 2 output (see
section 5.0).
Connect to VDDOUT
via a series resistor (typ. 39
.
Other modes: Must be unconnected.
RF Power mode selection input.
High Power Mode (HPM): leave unconnected.
Low Power Mode (LPM): connect to GND.
Must be unconnected.
Ground
Must be unconnected.
UART RX input, debug purposes.
UART TX output, debug purposes.
Ground
Ground
Ground
FINAL
35
36
VOL_DN
VOL_UP/
MUTE
NC
GND
NC
REGION1
REGION2
I
I
-
-
I-PD
I-PU
37
38
39
40
41
-
-
-
-
-
-
-
-
-
-
-
-
-
I-PU
I-PD
42
LED_RED2
O
8
I
43
RF_POWER
I
-
I-PU
44
45
46
47
48
49
50
51
52
NC
GND
NC
UART_RX
UART_TX
GND
GND
GND
RSTn
-
-
-
I
O
-
-
-
I
-
-
-
-
8
-
-
-
1
-
-
-
I-PD
(10k)
-
-
-
-
I-PU Active low Reset input with Schmitt-trigger input, open-drain output
(200k and pull-up resistor to internal VDD. Input may not exceed 2.0 V. An
pull-up) internal capacitor of 47 nF is mounted on this pin.
-
-
-
-
-
I
Debug purposes. Internally connected to VDDOUT (pin 61) via a
1 k resistor
Must be unconnected.
Must be unconnected.
Must be unconnected.
Must be unconnected.
Red LED output 1. See
section 5.0.
53
54
55
56
57
58
JTAG
NC
NC
NC
NC
LED_RED1
-
-
-
-
-
O
-
-
-
-
-
8
Datasheet
CFR0011-120-00-FM Rev 5
Revision 3.0
5 of 36
23-Jul-2015
© 2013 Dialog Semiconductor
