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BU8732AKV Datasheet(PDF) 3 Page - Rohm

Part No. BU8732AKV
Description  CODEC IC for digital mobile phone
Download  11 Pages
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Maker  ROHM [Rohm]
Homepage  http://www.rohm.com
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BU8732AKV Datasheet(HTML) 3 Page - Rohm

 
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background image
BU8732AKV
Communication ICs
3/10
Block diagram
36
35
34
33
32
31
30
29
28
27
26
25
12
11
10
9
8
7
6
5
4
3
2
1
37
38
39
40
41
42
43
44
45
46
47
48
13
14
15
16
17
18
19
20
21
22
23
24
CPU I / F
PLL
for CPU
DSP
8kHz
SW8
SW12
SW0
1
2
3
MIC
Amp2
MIC
Amp1
Amp1
Amp3
EAmp1
EAmp2
Amp5
Amp4
ERMT
SPMT
RAmp
JAmp
TEXT
R8
R7
C11
C10
C8
R5
MIC10
MIC1IP
TXVSS
TXREF
REFC
CODECREF
RXREF
SMUTE
RXVDD
RXVSS
EARO
C7
EAR (32
Ω)
SPC (32
Ω)
1
µ
1
µ
1
µ
2.2
µ
0.22
µ
MIC1IN
C9
R6
frame syne
signal
reset
XPRSTB
PCMOUT
PCMIN
DCLK
CPUSEL
RGPULSE
RINGER1
RINGER
R9
R10
RINGER2
RINGER3
PVSS
(20
Ω)
DVSS
DVDD
DTMF / TONE
DSP I / F
PWM
RG0
EXTSEL
SW9A
REXT
Power on by
REFPON
Power on by
VCPON
Power on by
TGPON
Power on by
VCPON or TGPON
Power on by
RXPON
Power on by
SPCON
Power on by
EARON
R2
C2
R4
C4
C5
C6
C1
R1
C3
R3
SW9B
1
2
3
BPF
LPF
A / D
AAF
D / A
EV1
EV7
EV0
Vref /
COMMON
EV3
EV2
EV6
EV5
EV4
+
SOFTMUTE
+
+
+


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