MZ-NH1
36
36
MZ-NH1
•
IC Block Diagrams
IC301
AK5356VN-L
CONTROL
LOGIC
1
MODEB
2
BEEPIN
28
ENVG
27
ENREG
26
EN2
25
EN1
LEVEL
SHIFTER
3
DIN2
LEVEL
SHIFTER
4
DIN1
6
VSS
LEVEL
SHIFTER
5
OBEEP1
7
OUT1
24
VDD
23
MCK
22
VSS
BEEP
AMP
21
CL
20
CH
19
VG
18
NC
17
OBEEP2
CHARGE
PUMP
16
VSS
15
OUT2
BEEP
AMP
LEVEL
SHIFTER
LEVEL
SHIFTER
PRE
DRIVER
PRE
DRIVER
HEADPHONE AMP
(N-N)
LINE AMP
(P-N)
HEADPHONE AMP
(N-N)
LINE AMP
(P-N)
8
VDDO1
14 VDDO2
9
VREGO
12 VREF
10 VREG
11 VCONT
13 CFB
REGULATOR
C351
CXD9811K
LIN 28
A/D
CONVERTER
AUDIO
INTERFACE
CONTROLLER
CDTI
11
SDTO
MICL
PREOL
PRENL
PREL
PRER
PRENR
PREOR
7
RIN
1
VCOM
2
AV
D
D
3
A
VSS
4
DVSS
5
DVDD
6
CSN
13
CCLK
12
LRCK
10
MCLK
9
BCLK
8
CONTROL
REGISTER
INTERFACE
MIC POWER
SUPPLY
PDN
RESET
14
17
16
15
18
19
20
21
MPWR 27
MRF 26
MVSS 24
MVDD 23
MICR 22
MVCM
VCOM
VCOM
25
IC401
MM1655LCBE
VREF
+
–
+ –
+ –
+ –
A/D
CONVERTER
A/D
VREF
VREF
A7CAL_SW
13
WDT
10
LED_CTL
9
IAMP_CTL
14
CFB
15
TYPE1
11
BAT+ 31
CHG_SW1 30
I_CTL2 29
BAT– 25
RF1 26
IAMP_CAL 27
AMP_SEL 28
VO 32
22
I_CTL3
23
RS
24
I_CTL1
20
I_SEL
18
AD_SEL
17
VI
6
CHG_SW2
5
VI_CTL
4
PWT
3
VG
2
VI2
1
GND
21
PGND
19
SWITCHING
CIRCUIT
TIME
DIVIDER
ERROR LED
CONTROL
OSC
DET
COMPARATOR
BLOCK
IN1–
12
CHG_CTL
7
TYPE2
16
CHARGE CONTROL
ON/OFF
CHARGE SWITCH
CONTROL
CHARGE
CONTROL
ON/OFF
CONTROL
RECEIVER
PWR_WAKE
8
WAKE-UP
CONTROL
SWITCHING