Sierra Wireless AirPrime SL808 Series Product Technical Specification & Customer Design Manuallines page 58

Product Technical Specification & Customer Design Guidelines
Table 4-26: SPK electrical characteristics
Biasing
voltage
Output swing
voltage
RL
IOUT
POUT
RPD
VPD
a. Output voltage depends on the output speaker gain set by AT command. This value is given in dB, but it's possible to
toggle it to index value. Refer to [3] AirPrime MC8xxx Embedded Modules Extended AT Command Reference.
58 Proprietary and Confidential - Specifications subject to change
4.10.3.2 SPK speaker output
SPK can have either a single-ended or a differential connection.
AirPrime SL module
+
SPK
Figure 4-8: SPK equivalent circuit
Table 4-26 describes the speaker's electrical characteristics.
Parameter
SPK_P and SPK_N
 a
RL=8 : AT+VGR=-1000
 a
RL=8 : AT+VGR=-1000

RL=32 : AT+VGR=-1000

RL=32 : AT+VGR=-1000
Load resistance
Output current; peak value; RL=8
 a
RL=8 ; AT+VGR=-1000
Output pull-down resistance at power-down 28
Output DC voltage at power-down

1
SPK_N
SPK_P
1 
Minimum
; single ended -
; differential -
a
; single ended -
a
; differential -
6

-
-
-
Typical Maximum
1.30
- 2
- 4
- 2.5
- 5
8 -
- 180
- 250
40 52
- 100
2400058
Unit
V
Vpp
Vpp
Vpp
Vpp

mA
mW

k
mV