4112221
Rev 7.2
June 19, 2013
41
User Guide
Interfaces
Table 22.
Electrical Characteristics of CSPK for FXT009
Parameters
Min
Typ
Max
Unit
Biasing voltage
CSPKxP and CSPKxN
1.30
V
Output swing
voltage
RL=8
: AT+VGR=-1000*; differential
-
-
4
Vpp
RL=32
: AT+VGR=-1000*; differential
-
-
5
Vpp
RL
Load resistance
6
8
-
IOUT
Output current; peak value; RL=8
-
-
180
mA
POUT
RL=8
; AT+VGR=-1000*;
-
-
250
mW
RPD
Output pull-down resistance at power-down
28
40
52
k
VPD
Output DC voltage at power-down
-
-
100
mV
*
The output voltage depends of the output speaker gain set by AT command. Refer to document [1] Open AT
Application Framework AT Commands Interface Guide
. This value is given in dB, but it’s possible to toggle this to index
value.
Table 23.
Electrical Characteristics of CSPK for FX100
Parameters
Min
Typ
Max
Unit
Biasing voltage
CSPKxP and CSPKxN
-1.5
1.5
mV
Output swing
voltage
RL=16
Ω: AT+VGR=-1600*; single-ended
-
1.7
Vpp
RL=32
Ω: AT+VGR=-1600*; single-ended
-
1.9
2.75
Vpp
RL
Load resistance
14.5
32
-
Ω
IOUT
Output current; peak value; RL=16
Ω
-
40
85
mA
Output current; peak value; RL=32
Ω
-
22
-
mA
POUT
RL=16
Ω; AT+VGR=-1600*
-
25
-
mW
RL=32
Ω; AT+VGR=-1600*
-
16
27
mW
RPD
Output pull-down resistance at power-down
28
40
52
k
Ω
*
The output voltage depends of the output speaker gain set by AT command. Refer to document [2] AirPrime
SL808xT and Q2698 Open AT Framework Commands Interface Guide
. This value is given in dB, but it’s possible to toggle
this to index value.
Refer to the following table for the list of recommended speaker characteristics.
Table 24.
Recommended Speaker Characteristics
Feature
Values
Type
10mW, electro-magnetic
Impedance
Z = 30 to 50
Sensitivity
110dB SPL min. (0dB = 20µPa)
Frequency response
Compatible with GSM specifications
