Baseband Technical Specifications; External Interfaces - Nokia RM-57 Service Manual

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Pin #/ Signal Signal
name description
1/ Charge V Charge
2/ GND Charge GND
3/ ACI ACI
4/ Vout DC out
9 / XMIC N Audio in
10 / XMIC P Audio in
11 / HEAR N Audio out
12 / HEAR P Audio out
13 / HEAR R N Audio out
14 / HEAR R P Audio out

Baseband technical specifications

External interfaces

External interfaces
Name of Connection
USB
Charger
Page 9–28
Figure 114 External audio connector
Table 20 Audio connector pin assignments
Spectral range
DC
-
1kbits/s
DC
300-8k
300-8k
20-20k
20-20k
20-20k
20-20k
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Voltage/ Max or nominal
Current levels serial
impedance
0-9V/ 0.85A
0.85A 100mΩ (PWB+
conn.)
Digital 0 / 47Ω
2.5-2.78V
2.78V 70 mA 100mΩ (PWB+
conn.)
2.5V 90mA
1Vpp &
2.5-2.78VDC
1Vpp &
2.5-2.78VDC
1Vpp 10Ω
1Vpp 10Ω
1Vpp 10Ω
1Vpp 10Ω
Connector reference
X2001
X2000
RM-57/58
System Module
Notes
Insertion &
removal
detection
200mW
Not conn. in
mono
Not conn. in
mono
Issue 1