1 - 15
A4
CHECK
DATE :
NAME : ZC.ZENG
08-09-2011
2
12
9
SH 190 -9
Issued Date
1
Class No
FWM9000 All Version
Ver
3
testing with 20 to 20k Hz filter
USB SPECICFICATION
Remarks :
dB
Microphone Frequency response at
volume 23,input leven 1mv rms,
connect main load
FL/FR ch
dB
1KHZ
0
ref
dB
10KHZ
-3
±3
63HZ
-12
mV
V
m
4
2
)
1
l
o
v
n
i
a
m
,
n
i
m
l
o
v
c
i
m
(.
1
l
o
v
=
n
i
m
.l
o
V
±4
8
6
)
x
a
m
l
o
v
n
i
a
m
,
x
a
m
l
o
v
c
i
m
(
e
s
i
o
N
m
u
H
x
a
M
Signal to Noise Ratio ( 0dB,1kHz ) ( A - weighted )
45
40
dBA
V
m
5
.
1
1
)
s
m
R
(
n
e
v
e
l
t
u
p
n
i
e
n
o
h
p
o
r
c
i
M
dBA
W
m
%
0
2
-
/
+
0
5
5
)
S
M
R
(
t
u
p
t
u
o
r
e
w
o
P
e
n
o
h
p
o
r
c
i
M
A
/
N
)
z
H
K
1
,
B
d
0
(
N/A
Channel Unbalanceo about( mic1 and mic2)
A
/
N
)
)
z
H
3
6
,
B
d
0
(
(
k
l
a
t
s
s
o
r
C
l
e
n
n
a
h
C
1
+/- 3
A
/
N
e
c
n
a
t
s
i
s
e
R
t
u
p
t
u
O
Specification
%
8
6
x
a
m
l
o
v
)
z
h
K
1
,
B
d
0
(
e
s
i
o
N
+
D
H
T
Output Voltage RL = 33 k ohm ( )dB, 1 Khz )
Nom
Lim
Unit
GENERAL PART
Measurement are directly done at the connector Microphone(mic1,mic2)
Description
TECHNIAL DESCRIPTION
Microphone
See also SH 190 testing with 20 to 20k Hz filter,input leven 1mv rms(lim:1.5mv rms) Rs=600ohm output 500mW
Measurment are directly done at the coonector on the board
Summary of Contents for FWM9000
Page 21: ...WIRING DIAGRAM 4 1 4 1 ...
Page 24: ...CIRCUIT DIAGRAM MAIN BOARD 6 1 6 1 ...
Page 27: ...PCB LAYOUT MAIN BOARD TOP SIDE 6 4 6 4 ...
Page 28: ...PCB LAYOUT MAIN BOARD BOTTOM SIDE 6 5 6 5 ...
Page 29: ...PCB LAYOUT AMP BOARD TOP SIDE 6 6 6 6 ...
Page 30: ...PCB LAYOUT AMP BOARD BOTTOM SIDE 6 7 6 7 ...
Page 31: ...CIRCUIT DIAGRAM DISPLAY BOARD 7 1 7 1 ...
Page 32: ...PCB LAYOUT DISPLAY KEY BOARD TOP SIDE 7 2 7 2 ...
Page 33: ...PCB LAYOUT DISPLAY KEY BOARD BOTTOM SIDE 7 3 7 3 ...
Page 34: ...CIRCUIT DIAGRAM TUNER BOARD 8 1 8 1 ...
Page 35: ...PCB LAYOUT TUNER BOARD 8 2 8 2 ...
Page 36: ...CIRCUIT DIAGRAM MCU BOARD 9 1 9 1 ...
Page 38: ...PCB LAYOUT MCU BOARD 9 3 9 3 ...
Page 39: ...PCB LAYOUT CD BOARD TOP SIDE 9 4 9 4 ...
Page 40: ...PCB LAYOUT CD BOARD BOTTOM SIDE 9 5 9 5 ...
Page 41: ...10 1 10 1 EXPLODED VIEW ...
