參數(shù)資料
型號: MB86435
廠商: Fujitsu Limited
英文描述: 3 V Single Power Supply Audio Interface Unit (AIU)
中文描述: 3 V單電源供電音頻接口單元(美亞)
文件頁數(shù): 29/36頁
文件大?。?/td> 610K
代理商: MB86435
29
MB86435
3. Transmission Characteristics
(1) Microphone Amp System
Note: Measurement conditions:
I
Standard Test Circuit
(2) Speaker Amp System
Note: Measurement conditions:
I
Standard Test Circuit
(3) TONE System
Note: Measurement conditions:
I
Standard Test Circuit
Parameter
Symbol
Conditions
Value
Unit
Min.
Typ.
Max.
Gain
(between MIC0 and BBO)
G
MB
MICO = –20 dBv, 1020 Hz
SW3 = on, SW4 = SW5 = SW14 = off
EV0 = 0 dB
–1.5
1.5
dB
Gain
(between JMIC0 and BBO)
G
JB
JMICO = –20 dBv, 1020 Hz
SW4 = on, SW3 = SW5 = SW14 = off
EV0 = 0 dB
–1.5
1.5
dB
Signal to noise ratio
(between MIC and BBO)
(between XMIC and BBO)
S
MB
Ain1 = –40 dBv ( +20 dBgain)
SW3 = on, SW4 = SW5 = SW14 = off
EV0 = 0 dB, 1020 Hz C message
40
dB
Signal to noise ratio
(between JMIC and BBO)
(between XJMIC and BBO)
S
JB
Ain2 = –40 dBv ( +20 dBgain)
SW4 = on, SW3 = SW5 = SW14 = off
EV0 = 0 dB, 1020 Hz C message
40
dB
Parameter
Symbol
Conditions
Value
Unit
Min.
Typ.
Max.
Gain
(between EAR and XEAR)
G
BE
BBI = –20 dBv, 1020 Hz
–4.3
dB
Gain
(between BBI and JEAR)
G
BJ
BBI = –20 dBv, 1020 Hz, ATT = –2.5 dB
–2.5
dB
G
BJ6
BBI = –20 dBv, 1020 Hz, ATT = – 8.5 dB
–8.5
dB
Gain
(between BBI and RAUD)
G
BR
BBI = –20 dBv, 1020 Hz
SW8 = on, SW6 = SW7 = SW12 = off
R = 32
, between EAR-XEAR
THD = 10%
R = 25
, between TONE-XTONE
gain = 0 dB, THD = 10%
R = 32
, JEAR, ATT = –2.5 dB
THD = 10%
0.0
dB
Output power
W
E
6.4
mW
W
T
10.0
mW
W
J
2.0
mW
Parameter
Symbol
Conditions
Value
Unit
Min.
Typ.
Max.
TONE output level
(TONE0)
G
T1
1 tone generated, SW2 = on
f
1
= 948.1 kHz
–14.0
dBv
G
T2
2 tone generated, SW2 = on
f
1
= 948.1 kHz, f
2
= 1219.1 kHz
–14.0
dBv
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