NPL-1
3 - Audio System
PAMS Technical Documentation
3DJH
1RNLD&RUSRUDWLRQ
,VVXH$SULO
)URPWKH8(0RXWSXWD%RRPHUFLUFXLWLVDGGHGWRJLYHHQRXJKRXWSXWVZLQJWRWKH
KHDGVHW7KHERRPHULVFRXSOHGDVGLIIHUHQWLDOLQSXWVLQJOHHQGHGRXWSXW7KHGLIIHUQWLDO
LQSXW)+)&0RXWSXWIURPWKH8(0
7KH%RRPHULVFRQWUROHGE\833*(1,27KLVFRQWUROVLJQDOHQDEOHVDQGGLVDEOHVWKH
ERRPHUZLFKKDYHDLQWHUQDOFLUFXLWIRUXSWLPDODQGFOLFNIUHHVWDUWXS
7KHERRPHUWLPLQJLVPRVWO\FRQWUROHGE\&7KHQHDUO\FOLFNOHVVRSHUDWLRQKDVEHHQ
PDGHE\WLPLQJLQWKH0&86:$PVHFGHOD\EHWZHHQ8(0DQG%RPPHUVWDUWXSDQG
DVHFGHOD\EHWZHHQERRPHUDQG8(0VKXWGRZQKDVEHPDGH
7KH*DLQRIWKHFLUFXLWLVFRQWUROHGE\55DQG55/HDGLQJWRD
%RRPHU+:JDLQRIDSSUR[LPDWHO\G%
7DEOH
Microphone input specifications, external audio
Parameter
Symbol
Min
Typ
Max
Unit
Microphone amplifier gain for MIC 2 / Handsfree
MicG2
0
22,5
dB
Microphone amplifier gain for MIC 2 / Headset
MicG2
22.5
42,5
dB
Microphone amplifier input resistor
R
MIC
30
50
kOhm
Differential input voltage range for MIC2 input,
G =20 dB
V
IN2
200
m V
PP
Differential input voltage range for MIC2 input,
G =0 dB
V
IN2
2.0
V
PP
Receive Common mode input voltage range for
MIC input
V
INCMR
100
m V
PP
Common mode voltage level
V
CM
1.3
1.35
1.4
V
Differential mode voltage range for microphone
amplifier, gain 20 dB
V
OUT
2.0
m V
PP
Differential load resistance for the microphone
input stage
R
GS
30
450
kOhm
Transmit gain absolute accuracy
GXA
-1.0
0.0
dB
Transmit gain variation with programmed gain,
temperature and supply
GXAGTV
-0.7
0.7
dB
Common mode rejection ratio
CMRR
45
60
dB
Summary of Contents for 6310I - Cell Phone - GSM
Page 161: ...PAMS Technical Documentation NPL 1 VVXH SULO 1RNLD RUSRUDWLRQ 3DJH SORGHG 9LHZ ...
Page 170: ...NPL 1 PAMS Technical Documentation 3DJH 1RNLD RUSRUDWLRQ VVXH SULO 5 5 ...
Page 311: ...3 06 7HFKQLFDO RFXPHQWDWLRQ D RXW 13 VVXH PHQG 6HSW 1RNLD RUSRUDWLRQ 3DJH D RXW ...
Page 312: ...3 06 7HFKQLFDO RFXPHQWDWLRQ D RXW 13 VVXH SULO 1RNLD RUSRUDWLRQ 3DJH ...
Page 331: ......