User's Manual

GE866-DUAL Hardware User Guide
1VV0301051 Rev. 2 – 2014-04-07 7
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Reserved. Page 51 of 82
Mod. 0805 2011-07 Rev.2
10.3.2. Output lines
EAR/Line-out Output
Differential line coupling
Direct connection (V
DC
=1.7÷2.1V)
output load resistance ≥ 8 Ω
signal bandwidth 250÷3400Hz
(@ -3dB with default filter)
max. differential output voltage
1120 mV
pp
@3.14dBm0
(*)
differential output voltage 550mV
rms
@0dBm0 (*)
volume increment 2dB per step
volume steps 0..10
(*) in default condition: Output Volume = +20dB, Output
Attenuation = 0dB
TIP:
We suggest driving the load differentially; this kills all the
common mode noises (click and pop, for example), the output
swing will double (+6dB) and the big output coupling capacitor
will be avoided.
In order to get the maximum power output from the device, the
resistance of the tracks has to be negligible in comparison to
the load.