參數(shù)資料
型號(hào)： MB86434PF
廠商： FUJITSU LTD
元件分類： 通信及網(wǎng)絡(luò)
英文描述： 5V Single Power Supply Audio Interface Unit (AIU)
中文描述： SPECIALTY TELECOM CIRCUIT, PQFP64
封裝： PLASTIC, QFP-64
文件頁(yè)數(shù)： 5/38頁(yè)
文件大小： 574K
代理商： MB86434PF
MB86434
5
(Continued)
Pin No.
Symbol
I/O
A/D
Description
43
BBI
O
A
AMP3 output pin. Should be included in HPF together with IM3, to prevent
DC offset from entering speakers.
44
IM3
I
A
AMP3 inverted (–) signal input pin.
45
BTO
O
A
Receiving volume adjustment circuit output pin.
46
OP2
O
A
AMP2 output pin. If AMP2 is not used, IM2 should be shorted to OP2.
47
IM2
I
A
AMP2 inverted (–) signal input pin. Can form a circuit with OP2 to add
sidetone or tone. Melody circuits, if used, can also be connected here.
48
OP1
O
A
AMP1 output pin. Can form a circuit with IM1 to include LPF or HPF in
receiving block. If AMP1 is not used, IM1 should be shorted to OP1.
49
IM1
I
A
AMP1 inverted (–) signal input pin.
50
PTBO
O
A
PCM receiver output pin.
51
BAG
G
A
Analog ground pin for sending, receiving blocks. To be set to 0 V.
52
VDDAB
P
A
Analog power supply pin for sending, receiving blocks. To be set within
range 4.75 to 5.25 V.
53
XJMIC
I
A
Microphone amp (2) non-inverted (+) signal input pin.
54
JMIC
I
A
Microphone amp (2) inverted (–) signal input pin.
55
JMICO
I
A
Microphone amp (2) output pin.
56
XMIC
I
A
Microphone amp (1) non-inverted (+) signal input pin.
57
MIC
I
A
Microphone amp (1) inverted (–) signal input pin.
58
MICO
O
A
Microphone amp (1) output pin.
59
SGO
O
A
Sending block signal ground potential output pin. Buffers SGC voltage.
60
BBO
O
A
Sending analog signal output pin.
61
N.C.
—
—
Not connected. To be left open.
62
N.C.
—
—
Not connected. To be left open.
63
BTPI
I
A
PCM ENCODE block input OP amp negative input pin.
64
BTPO
O
A
PCM ENCODE block input OP amp output pin.
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參數(shù)描述
MB86435 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:3 V Single Power Supply Audio Interface Unit (AIU)
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MB86437PFV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:3 V Single Power Supply Audio Interface Unit (AIU)
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