Nokia RM-70 - Page 132

Loop test Input terminal Output
terminal
Path
gain
[dB]
(fixed)
Input
voltag
e
[mVp-
p]
Differen
tial
output
voltage
[mVp-p]
Outpu
t DC
level
[V]
Outp
ut
curre
nt
[mA]
External Mic to External
Earpiece
XMICP and GND HSEAR R P,
HSEAR R N
and GND
-2.9 1000 720 1.2 NA
HSEAR P,
HSEAR N and
GND
XMICN and GND HSEAR R P,
HSEAR R N
and GND
HSEAR P,
HSEAR N and
GND
External Mic to Internal
Earpiece
XMICP and GND EarP and GND -4.5 1000 600 1.2 NA
EarN and
GND
XMICN and GND EarP and GND
EarN and
GND
External Mic to Internal
handsfree
XMICP and GND B2102 pads -5 1000 560 0 25m
A
(calc
.)
XMICN and GND B2102 pads
Internal Mic to External
Earpiece
B2100 (OUT/
GND)
HSEAR R P,
HSEAR R N
and GND
22.7 100 1360 1.2 NA
HSEAR P,
HSEAR N and
GND
HSEAR R P,
HSEAR R N
and GND
HSEAR P,
HSEAR N and
GND
RM-70
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