SANYO LA72680M

Ordering number : EN7955A
Monolithic Linear IC
LA72680M
JAPAN TV Sound Multiplex Demodulation
HiFi Sound Signal Processor
Overview
The LA72670BM is a HiFi sound signal processor with a built-in SIF demodulation and JAPAN TV sound multiplex
demodulation on a single chip.
Full adjustment free operation is realized by the IC’s internal automatic adjustment and trimming function, etc.
Functions
• HiFi sound signal processor
• HiFi head amp
• SIF modulation
• JAPAN multiplex modulation
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum power supply voltage 1
VCCH max
9.6
Maximum power supply voltage 2
VCCL max
6
V
Always power supply voltage
VCCA max
6
V
Allowable power dissipation
Pd max
Ta=70°C *
1300
V
mW
Operating ambient temperature
Topr
-10 to +70
°C
Storage ambient temperature
Tstg
-55 to +150
°C
* On board: 114.3mm×76.1mm×1.6mm, glass epoxy board.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
41807 MS PC B8-6946,B8-6871 No.7955-1/21
LA72680M
Operating Conditions at Ta = 25°C
Parameter
Recommended operating
Symbol
Conditions
Ratings
Unit
VCCH
9
V
VCCL
5
V
5
V
voltage 1
Recommended operating
voltage 2
Recommended always voltage
VCCA
Allowable operating voltage 1
VCCH op1
8.5 to 9.5
V
Allowable operating voltage 2
VCCL op2
4.8 to 5.3
V
Allowable operating always
VCCA op3
4.5 to 5.5
V
voltage
Electrical Characteristics at Ta = 25°C, VCCH=9V, VCCL=5V, VCCA=5V
Parameter
Current dissipation
Symbol
ICCR1
REC&EE 9V
No signal, Inflow current at Pin 3/54
Ratings
min
typ
Unit
max
42
50
58
mA
No signal, Inflow current at Pin 15/32/36/46
G1D8D7:00
63
75
87
mA
No signal, Inflow current at Pin 15/32/36/46
89
105
121
mA
9
11
13
mA
76
90
104
mA
0.8
1.0
1.2
mA
G1D8D7:00
Current dissipation EE 5V
ICCE1
Current dissipation REC
ICCR2
5V
Current dissipation PB 9V
Conditions
G1D8D7:00, G1D4:1
ICCP1
No signal, Inflow current at Pin 3/54
G1D8D7:01
Current dissipation PB 5V
ICCP2
No signal, Inflow current at Pin 15/32/36/46
G1D8D7:01
Current dissipation
ICCAL
always power supply
No signal, Inflow current at Pin 5,
Mute H at Pin 49
EE through (LINE IN to LINE OUT), EE mode, f=1kHz, L/R-ch
Output level 1
VO1
VIN=-28.2dBV, Gain=1 (G3 D4:0)
-10.5
-9
-7.5
dBV
Output level 2
VO2
VIN=-28.2dBV, Gain=2 (G3 D4:1)
-9.5
-8
-6.5
dBV
Output distortion
THD
VIN=-28.2dBV, Gain1, 2
Channel gain difference
∆VO
VIN=-28.2dBV, Gain1, 2
Maximum output level
VOM
THD=1%, Gain1, 2
Output noise level
VNO
0.05
0.15
%
-1
0
1
dB
7
8.5
dBV
Rg=1kΩ, JIS-A filter, Gain1
-89
-85
dBV
Mute attenuation value
MU
VIN=-18.2dBV
-91
-80
dB
Input switch cross-talk
CT
VIN=-18.2dBV
-75
-68
dB
-21.5
-20.5
dBV
dBV
Normal output (LINE IN to NORMAL OUT), EE mode, f=1kHz
Output level for Normal
VONOR
VIN=-28.2dBV
-22.5
-11.0
RFC output (NORMAL IN to RFC OUT), f=1kHz
Output level
VOR
VIN=-21.2dBV, G2D4D3:10
THDR
VIN=-21.2dBV, G2D4D3:10
ALC level (1)
VOAR1
VIN=-11.2dBV, G2D4D3:10
ALC distortion (1)
THDAR1
VIN=-11.2dBV, G2D4D3:10
Output distortion
ALC level (2)
VOAR2
VIN= -11.2dBV, G2D4D3:10, G4D2:1
ALC distortion (2)
THDAR2
VIN= -11.2dBV, G2D4D3:10, G4D2:1
-7.0
-3.0
-9.5
-8.0
0.05
0.2
%
-5.5
-4.0
dBv
0.3
0.5
%
-1.5
0
0.1
0.3
dBv
%
11
12
13
dB
Input no signal
1.294
1.300
1.306
MHz
LINE AMP (NORMAL IN to LINE OUT), EE mode, f=1kHz, Left channel and Right channel
Line amp gain
GVL
VIN=-21dBV, Gain=1 mode (G2D4:0)
REC system (LINE IN to VCO OUT), f=1kHz
Free-running frequency L
fOL
Free-running frequency R
fOR
Input no signal
1.694
1.700
1.706
MHz
Standard frequency deviation
DEV
VIN=-28.2dBV
±46
±50
±54
kHz
Carrier output level Lch
VfoL
Non modulation
380
440
500
mVp-p
FM R/Lch MIX ratio 1
MIX1
Non modulation, VfoR/VfoL, G3D7D6;01
7.1
7.6
8.1
dB
FM R/Lch MIX ratio 2
MIX2
Non modulation, VfoR/VfoL, G3D7D6;00
8.1
8.6
9.1
dB
FM R/Lch MIX ratio 3
MIX3
Non modulation, VfoR/VfoL, G3D7D6;10
9.1
9.6
10.1
dB
FM R/Lch MIX ratio 4
MIX4
Non modulation, VfoR/VfoL, G3D7D6;11
10.1
10.6
11.1
dB
L&R
Continued on next page.
No.7955-2/21
LA72680M
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
min
typ
Unit
max
FM modulation system (PB FM IN to LINE OUT), PB mode, FM standard input=300mVp-p(R/Lch ratio=1:1)
Output level Lch
VOPL
fc=1.3±50kHz, fm=1kHz, Gain=1 (G3D4:0)
Output level Rch
VOPR
fc=1.7MHz±50kHz, fm=1kHz, Gain=1 (G3D4:0)
Output level difference
VDEM
fc=1.3MHz±50kHz, fm=1kHz
-11
-9
-7
dBV
-11
-1.5
-9
-7
dBV
0
1.5
dB
fc=1.7MHz±50kHz, fm=1kHz
Lch-Rch, Gain=1 (G3D4:0)
Output distortion Lch
THDPL
fc=1.3MHz±50kHz, fm=1kHz,DIN
0.3
0.5
%
Output distortion Rch
THDPR
fc=1.7MHz±50kHz, fm=1kHz, DIN
0.3
0.5
%
-26
-23
dB
DO detector / HiFi detector PB mode(DO DET : fc=1.3MHz / HiFi DET : fc=1.3MHz & 1.7MHz),
DO detection level
DOC
The ratio with Standard input
pin 31=300mVp-p
DO detection hysteresis
DOCH
HiFi recovery delay time
HIDEL
0.5
3
5
dB
110
125
140
ms
HiFi detection DC output 1
VTRS1
HiFi detection DC output 2
VTRS2
Pin 34 input level=100mVp-p
2.1
2.6
3.1
V
Pin 34 input level=300mVp-p
3.3
3.8
4.3
HiFi detection DC output 3
V
VTRS3
Pin 34 input level=1Vp-p
4.3
4.8
5.3
V
NORMAL detection
NORDC
Pin 34 input level=0mVp-p
0.4
V
The delay time that is changed from NORMAL
to HiFi.
DC output
Hold pulse occurrence PB mode
Hold pulse delay time
HPD
AUDIO HEAD PULSE IN
0.8
1.0
1.2
µs
Hold pulse width
HPW
AUDIO HEAD PULSE IN
7.2
9.0
10.8
µs
Band pass filter PB mode, PB IN = 150mVp-p(R/L MIX ratio 1:1)
1.3MHz BPF monitor level
V13
34pin input level =60mVp-p,G2D2D1:01
80
100
120
mVp-p
1.7MHz BPF monitor level
V17
34pin input level =60mVp-p,G2D2D1:01
60
80
100
mVp-p
L115N
Level difference between 1.15M/1.3MHz
-13
-5
dB
-13
-5
dB
1.3MHz BPF
frequency characteristics 1
1.3MHz BPF
G2D2D1;01
L145N
frequency characteristics 2
1.3MHz BPF
L155N
frequency characteristics 3
1.7MHz BPF
R145N
-20
-10
dB
Level difference between 1.45M/1.7MHz
-15
-5
dB
G2D2D1;10
R155N
frequency characteristics 2
1.7MHz BPF
Level difference between 1.55M/1.3MHz
G2D2D1;01
frequency characteristics 1
1.7MHz BPF
Level difference between 1.45M/1.3MHz
G2D2D1;01
Level difference between 1.55M/1.7MHz
-9
-3
dB
-9
-3
dB
66
69
72
dB
-2
0
2
dB
1
2
3.2
dB
G2D2D1;10
R185N
frequency characteristics 3
Level difference between 1.85M/1.7MHz
G2D2D1;10
Playback head amp system (PB HEAD AMP IN to OUT), PB mode
Voltage gain
GVP
Voltage gain difference
VIN=100µVp-p, f=1.5MHz, CH1&2
∆GVP
CH1/CH2
EP gain boost value
Frequency characteristics
∆GEP
∆fP
Input conversion noise voltage
VNINP
Output DC offset
∆VODC
VIN=100µVp-p, f=1.5MHz
VIN=100µVp-p, f=1.8M/1.0MHz, CH1&2
-3
The value(1 / GVP) of 1.1MHz LPF output
-1
1
dB
1.7
2
µVrms
0
30
mV
level
CH1/CH2
-30
REC AMP system REC mode, The external resistor at pin 28 = 2.7kΩ
REC current
IOR
Cross modulation distortion
37
40
mA
CMDO4
Inflow current at pin 26
Rch carrier level standard
34
-48
-40
dB
CMDO9
Rch carrier level standard
-55
-40
dB
dB
0.4MHz component
Cross modulation distortion
0.9MHz component
current ratio +2dB
IOR+2dB
P23:0V,G4D6D5:01
1.6
2.0
2.4
current ratio -2dB
IOR-2dB
P23:0V,G4D6D5:10
-2.4
-2.0
-1.6
dB
Mute attenuation value
IORMU
REC MUTE ON(pin 17:5V)
-40
dB
Continued on next page.
No.7955-3/21
LA72680M
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
min
typ
Unit
max
SIF system (SIF IN to SIF OUT), EE/REC mode
Input level
VILIM
fc=4.5MHz
80
90
100
dBµV
-7
-5.5
-4
dBV
-1.5
0
1.5
dB
0.2
0.5
%
-14
-11
dB
-5.5
-3.5
dBV
0.3
1.0
%
TV multiplex demodulation system EE/REC mode, L/Rch, LINE AMP GAIN(1)
Deviation of SIF input MONO: 100%→±25kHz (fm=400Hz) Pre-Emphasis ON
MONO output level
VOMN
fm=1kHz,100% modulation,
Pre-emphasis OFF
Output L/R level difference
∆VOMN
fm=1kHz,100% modulation,
Pre-emphasis OFF
MONO distortion
THDM
fm=1kHz,100% modulation,
Pre-emphasis OFF
MONO frequency
FCM1
characteristics 1
fm=10kHz,100% modulation,
MONO S/N
SNM
Non modulation,15kHz LPF
TEREO output level
VOST
fm=1kHz, 100% modulation, 15kHz LPF
STEREO distortion
THDS
fm=1kHz, 100% modulation, 15kHz LPF
STEREO S/N
-17
Pre-emphasis OFF
SNS
Sub carrier (Non modulation)
50
-7.5
dB
45
dB
+ Cue(Stereo) ,15kHz LPF
MAIN output level
VOMA
fm=1kHz, 100% modulation, Cue(Bilingual),
-7
-5.5
-4
dB
0.2
0.5
%
15kHz LPF
MAIN distortion
THDMA
fm=1kHz, 100% modulation, Cue(Bilingual),
15kHz LPF
MAIN S/N
SNMA
Sub Carrier(Non modulation) + Cue(Bilingual),
50
dB
15kHz LPF
SUB output level
VOSU
fm=1kHz, 100% modulation, Cue(Bilingual),
-7.5
-5.5
-3.5
dBV
15kHz LPF
SUB S/N
SNSU
Sub carrier (Non modulation) +
45
dB
Cue(Bilingual) ,15kHz LPF
SUB frequency characteristics
FCSU2
fm=10kHz, 60% modulation, Cue(Bilingual),
-20
-16
-12
dB
0.5
2.0
%
15kHz LPF
SUB distortion
THDSU
fm=1kHz, 100% modulation, Cue(Bilingual),
15kHz LPF
STEREO separation L→R
SEPR
L:fm=1kHz, 60%modulation, Cue(Stereo),
25
30
dB
25
30
dB
35
50
dB
45
55
dB
15kHz-LPF
STEREO separation R→L
SEPL
R:fm=1kHz, 60%modulation, Cue(Stereo),
15kHz-LPF
Cross-talk MAIN→SUB
CTSUB
Main:fm=1kHz, 100%modulation,
Cue(Bilingual), 15kHz LPF
Cross-talk SUB→MAIN
CTMA
Sub:fm=1kHz, 100%modulation,
Cue(Bilingual), 15kHz LPF
Stay behind carrier level (S)
CLSU
Main=0%, Sub:0%(Carrier), Cue(Bilingual)
Main=0%, Sub:0%(Carrier), Cue( Bilingual)
-55
-45
dBV
dBV
Stay behind carrier level (M)
CLMA
-55
-45
Mode detection volt(mono)
VLEDM
Input=Monaural signal
0.7
1.0
1.3
V
Mode detection volt(st)
VLEDM
Input=Stereo signal
1.7
2.0
2.3
V
Mode detection volt(bil)
VLEDM
Input=Bilingual signal
2.7
3.0
3.3
V
4.0
Just clock output High volt
VJCH
f=400Hz(mono),40%Mod.
Just clock output Low volt
VJCL
f=400Hz(mono),10%Mod.
V
1.0
V
No.7955-4/21
LA72680M
Package Dimensions
unit : mm (typ)
3255
17.2
0.8
14.0
60
41
40
80
21
14.0
17.2
61
1
0.65
0.25
20
0.15
(2.7)
0.1
3.0max
(0.83)
SANYO : QFP80(14X14)
No.7955-5/21
TO RF MOD
VCC(H) 9V
Normal IN
ALWAYS +B
Normal OUT
EXT1 IN (L)
EXT2 IN (L)
EXT3 IN (L)
LINE OUT (L)
LINE OUT (R)
MONITOR IN (R)
EXT3 IN (R)
EXT2 IN (R)
EXT1 IN (R)
JUST IN
CLOCK OUT
A GND
4.7µF
4.7µF
1.0kΩ
10kΩ
+
+
59
60
73
72
71
70
69
68
67
80
79
78
77
76
75
58
+
57
2
+
1
4.7µF
3
MAIN
DEEM
4
5
MUTE
6
ALC
OUT
SW
SUB
DEMOD
R-CH
IN SEL
SUB
DEEM
15kHz 15kHz
LPF
IPF
55
56
4.5fH
TRAP
+
+
53
NC
7
+
+
9
10
A GND
50
1µF
+
14
AIC
47
+
MONI TOR (L)
+
13
MIX
LPF
VCO
12
1µF
11
LIM
48
1µF
DEV
49
L-CH
PLL
A GND
CONTROL
OUT
SEL
10µF
8
51
COMP
AM
DEMOD
MATRIX
SUB
DET
SUB
BPF
+
fsc IN
3.58MHz
52
2.2µF
PIPPLE
FIITFR
CUE
BPF
54
4.7µF 4.7µF
MTS VCC(9V)
FIITFR
Adj. IIM
AMP
SIF
DEMOD
+
+
4.7µF 2.2µF 1µF
66 JUST
CLK
65
+ 74
NC
63
NC
64
62
NC
+ 61
SIF DET IN
0.01µF NC
1µF
0.1µF
0.1µF
1.0kΩ
MTS GND
1µF
0.1µF
4.5MHz BPS
45
+
16
LIM
10µF
+
18
PB AMP
17
REC-H
+
31
32
33
34
35
36
37
20
ALC DET
D GND
+
10µF
0.01µF
21
22
23
24
25
26
27
28
29
10µF
22µF
+
4700pF
PRE GND
+
4.7µF
0.01µF
470Ω
2.7kΩ
+
39kΩ
REC MUTE
HiFi Tracking DC
(NORMAL:Low)
VCC (L) 5V
MONITOR
DATA
CLOCK
AF SW
39
38
MTS
MODE OUT
40
4.7µF 0.01µF
19
REC-H
REC AMP
41
+
22µF
NOISF
30
DET
42
LOGIC
43
PB AMP
L-CH
BPF
R-CH
BPF
44
+
COMP
VREF
22µF
15
ENV
DET
DO DET
COMP
SW
NOISE
HOLD
PULSE
R-CH
PNR
46
+
10µF 4.7µF 0.01µF 4700pF
MUTE
LA72680M
Block Diagram
0.47µF
No.7955-6/21
LA72680M
Pin Description
Pin
No.
Pin Function Name
DC voltage
Function
AC level
1
Line Mute terminal(L)
When the power supply VCC is on, the
switch of Pin 77 and Pin 1 is turned to ON to
77
Line Mute terminal(R)
reduce the line out noise.
In this case, it is necessary to apply 5 fixed
Equivalent circuit
Pin77
Pin1
10Ω
DC to Pin 5.
Output terminal
DC; 4.2V
for RF modulator
Output terminal for RF modulator.
ALC level can be settled to -1dBV and OFF
MUTE
400µA
2
by serial control.
2.8kΩ
10kΩ
300kΩ
3
VCC 9V
5
ALWAYS VCC
Power supply of Line Out.
Power supply for the noise elimination mute
control when power is on.
15
VCC 5V(Lch)
5V power supply of Lch.
32
VCC 5V
5V power supply of HEAD AMP.
36
Power supply for Logic
Power supply for Logic.
46
VCC 5V(Rch)
5V power supply of Rch.
54
9V power supply for
9V power supply of MTS.
MTS
4
NORMAL input
DC; 2.5V
terminal
NORMAL IC output signal is entered and
output to Line Out through output changeover.
G4D7/0:0dB
1:3dB
150kΩ
AC; -28.2dBV
500Ω
Vref
6
NORMAL output
DC; 2.5V
terminal
This is connected to input of NORMAL
AUDIO IC.
200Ω
320µA
AC; -21.2dBv
9
EXT2_IN(L)
11
EXT3_IN(L)
69
EXT1_IN(R)
71
EXT2_IN(R)
73
EXT3_IN(R)
DC ; 0V
Audio input terminal.
50µA
EXT1_IN(L)
AC; -28.2dBV
500Ω
100kΩ
Audio input terminal
7
Continued on next page.
No.7955-7/21
LA72680M
Continued from preceding page.
Pin
No.
8
Pin Function Name
ALC detection terminal
DC voltage
Function
AC level
DC;
This is ALC detector terminal for RF
converter and always ready for operation.
2kΩ
40kΩ
150Ω
for RF converter
Equivalent circuit
10
L-GND
25
HEADAMP-GND
35
LOGIC-GND
50
R-GND
70
MTS-GND
79
AUDIO-GND
12
Monitor input
DC ; 2.5V
Monitor input terminal
terminal(L)
74
Monitor input
200Ω
100Ω
terminal(R)
Vref
Input changeover
DC ; 2.2V
switch output(L)
PB/REC switch output to transform REC and
200Ω
13
PB signals into DC through a coupling
capacitor.
48
Input changeover
switch output(L)
400Ω
14
ALC input terminal(L)
47
ALC input terminal(R)
DC; 2.5V
40µA
40µA
100µA
AC; -21.2dBv
REC:ON
PB:ON
ALC input terminal after passing through a
80µA
coupling capacitor.
PB:ON
400Ω
40µA
100kΩ
Vref
15kΩ
2kΩ
30kΩ
1/2 VCC terminal.
50kΩ
500Ω
500Ω
30kΩ
DC; 2.5V
40kΩ
1/2 VCC terminal
100kΩ
16
REC:ON
500Ω
AC; -21dBv
Continued on next page.
No.7955-8/21
LA72680M
Continued from preceding page.
Pin
No.
17
Pin Function Name
REC mute terminal
DC voltage
Function
AC level
DC; Unsettled
Equivalent circuit
Two levels control terminal.
100kΩ
Hi ; 3.0V to Vcc
Low ; 0V to 1.5V
150kΩ
1kΩ
18
45
NR waiting DET
Terminal for waiting detector.
terminal(L)
The recommended external capacity is 10µF.
NR waiting DET
terminal(R)
500Ω
5.6kΩ
500Ω
19
NR waiting filter
DC; 2.5V
(Pin 19,Pin 44)between GND;4.7µF
terminal1(L)
(Pin 20,Pin 43)between GND;0.01µF
44
NR waiting filter
terminal1(R)
20
NR waiting filter
AC;
22kΩ
Pin19,44
2.4kΩ
Pin20,43
terminal2(L)
43
NR waiting filter
terminal2(R)
21
CCA reference
DC; 2.5V
terminal(L)
By connecting 22µF between Pin 21, Pin 41
and GND, 4700pF between Pin 22, Pin 42
and GND, form the NR emphasis.
22
NR emphasis
30kΩ 10kΩ
42
NR emphasis
terminal(R)
41
12kΩ
Pin22,42
39kΩ
terminal(L)
Pin21,41
10kΩ
CCA reference
terminal(R)
HiFi/Nor selecting
In PB mode, Pin 23 becomes
terminal
“TRACKING_DC” when inputting HiFi audio
(PB)
signal and becomes “L” when inputting
(2)Monitor control
Normal signal.
terminal at Pin 34
In EE mode, this is used as the terminal for
(EE)
monitor control of Pin 34.
Low(0 to 0.8V) ; VCO MIX
Middle(1.4V to 3.6V) ; Lch VCO
5E
500Ω
5kΩ
150kΩ
23
High(4.2V to VCC) ; Rch VCO
Continued on next page.
No.7955-9/21
LA72680M
Continued from preceding page.
Pin
No.
24
Pin Function Name
DC voltage
Function
AC level
HEAD AMP input
DC
HEAD AMP inputs (CH1 and CH2) is PB
terminal
PB; 2.0V
mode.
(Hch)
Equivalent circuit
RECON
HEAD AMP input
terminal
REC; 4.1V
(Lch)
PB-ON
26
REC CURRENT AMP
CURRENT AMP output in REC mode.
output terminal
Common input terminal in PB mode.
4.5mA
27
VCC5V
8.3Ω
REC-ON
PB-ON
28
CURRENT AMP
DC; 2.4V
Terminal for adjusting the recording current.
ADJUST terminal
Pin28
500µA
2.7kΩ
400Ω
29
ALC detection terminal
This is ALC detector terminal.
ALC becomes through switch when Pin29
HiFi/NORMAL
This terminal is for detecting
detection terminal
demodulation noise and output which has
1kΩ
passed through the primary
HPF(fc=140kHz).
Pin30
4.7µF
39kΩ
200Ω
300kΩ
30
2kΩ
1kΩ 1kΩ
2.5V
pull up VCC.
Continued on next page.
No.7955-10/21
LA72680M
Continued from preceding page.
Pin
No.
31
Pin Function Name
Monitor terminal
DC voltage
Function
AC level
DC ; 2.5V
Equivalent circuit
FM MIX output(Low), Lch VCO(middle), Rch
VCO(High) can be monitored by controlling
Pin 23 in REC mode.
HOLD and DO pulses can be monitored by
500Ω
Pin 17 in PB mode. BPF of Lch and Rch can
be monitored by serial control
in PB mode.
30kΩ 500Ω
REC-ON
33
PB AMP output
DC; 2.5V
Output of HEAD AMP in PB mode.
350µA
100Ω
34
PB FM input terminal
DC; Unsettled
Input pin of FM in PB mode.
Vref
50kΩ
AC; 350mVp-p
(L/R MIX)
200µA
30pF
30kΩ
30pF
37
Serial data input
Hi ; 3.5V to 5V
terminal
Low ; 0V to 1.5V
50µA
2.5V Vref
5V
500Ω
ON
at ACK
0V
CLK input terminal
Hi ; 3.5V to 5V
50µA
38
Low ; 0V to 1.5V
5V
500Ω
0V
Continued on next page.
No.7955-11/21
LA72680M
Continued from preceding page.
Pin
No.
39
Pin Function Name
AF SW pulse input
DC voltage
Function
AC level
50Hz/60Hz
terminal
Equivalent circuit
Input terminal of AF SW pulse.
5V
Hi ; 3.5V to 5V
Low ; 0V to 1.5V
100kΩ
2kΩ
0V
DC;
Detection result output
200µA
MTS MODE OUT
50µA
40
for M.T.S. signal.
BILINGAL : 3.0V
STEREO : 2.0V
MONO
: 1.0V
1kΩ
50kΩ
45kΩ
Input terminal for FSC (3.58MHz).
60kΩ
FSC IN
Mute control terminal.
40kΩ
51
DC;
10kΩ
MUTE control terminal
50kΩ
49
1kΩ 15pF
52
PCREG76
DC; 1.2V
20kΩ
50µA
3.8V
20kΩ
Band gap power supply terminal of M.T.S
block.
This power supply does not
8kΩ
1kΩ
200kΩ
operate in PB mode.
53
NC pin
62
63
68
76
Continued on next page.
PS No.7955-12/21
LA72680M
Continued from preceding page.
Pin
No.
55
Pin Function Name
DC voltage
Function
AC level
PHASE
This detection pin becomes High(4.0V or
COMPARATOR(BIL.)
more) because of detecting BIL, when BIL
Equivalent circuit
200Ω
signal is input.
56
PHASE
This detection pin becomes High(4.0V or
COMPARATOR(ST.)
more) because of detecting ST, when ST
25kΩ
1kΩ
signal is input.
57
SIF INPUT
Input terminal for SIF.
The input impedance is about 1kΩ. Be care
for about pattern layout of the input circuit,
because of causing buzz-beat and buzz by
leaking noise signal into the input
500Ω
terminal.(The noise signal depending on
500Ω 1kΩ
sound is particularly video signal and chroma
1kΩ
signal and so on. VIF carrier becomes noise
signal.)
Composite signal of MTS can be input by
adding 5V to this terminal directly.(For test)
58
FM FILTER
Filter terminal for making stable DC voltage
of FM detection output in SIF part.
Normally, use a condenser of 1µF. Increase
the capacity value with concerning frequency
characteristics of low level.
This terminal becomes composite signal
input terminal of MTS by changing to 5V at
1kΩ
1kΩ
Pin57.
59
REG FILT
DC; 4.5V
Filter terminal of reference
49kΩ
voltage source
1kΩ
Loop filter terminal for
200Ω
automatic adjusting.
1kΩ
40µA
40kΩ
200Ω
DC; 3.8V
to MTS block
50µA
FILTER AUTO ADJ
3.8V
60
60kΩ 11kΩ
to SIF block
Continued on next page.
PS No.7955-13/21
LA72680M
Continued from preceding page.
Pin
No.
61
64
Pin Function Name
DC voltage
AM DETECTOR
DC FILTER
Function
AC level
Equivalent circuit
Reference terminal of AM detection.
DC ; 3.8V
65
VCC
30kΩ
1kΩ
30kΩ
1kΩ
30kΩ
Absorbing the DC offset of signal line by
external capacity.
75
450kΩ
450kΩ
200Ω
15kΩ
JUST CLOCK OUT
67
JUST CLOCK AMP
Rectangle wave output for JUST CLOCK.
5V
5kΩ 100kΩ
66
DC ; 3.8V
20dB amplifire output for JUST CLOCK.
OUT
5kΩ
45kΩ 500Ω
72
COMPARATOR Input
DC ; 3.8V
Comparator input for JUST CLOCK.
Terminal
50kΩ
1kΩ
80
Line Out(L) terminal
DC; 4.15V
100kΩ
Line Out(R) terminal
100kΩ
78
PS No.7955-14/21
LA72680M
Through Monitor Signal Path Description
1. The Through Monitor signal path is as follows.
When Serial Data G3D3 is set to "1", signal is output to LINE OUT and REC OUT.
2. reference input signal level.
EXT1,2,3 pin : -28.2dBV
Through Monitor pin : -21.2dbV
From MTS
EXT1
R-ch
EXT2
EXT3
Through
Monitor IN(R)
+
69pin
71pin
73pin
INPUT
SELECTOR
S10(G3,D3)
74pin
78pin
MATRIX/OUT
SELECTOR
LINE OUT(R)
From MTS
2pin
EXT3
L-ch
EXT2
EXT1
11pin
9pin
7pin
REF OUT
INPUT
SELECTOR
S10(G3,D3)
+ 12pin
Through
Monitor IN(L)
80pin
MATRIX/OUT
SELECTOR
LINE OUT(L)
Through Monitor Switch Mode Table
Through Monitor
Auto HiFi Det
HiFi/Mix/Nor
G3D3
G2D6
G2D4D3
0
-
00
Insel L
Insel R
Insel Mix
1
-
00
Monitor L
Monitor R
Monitor Mix
PB
0
0
00
PB L
PB R
PB Mix
(HiFi Tape)
0
1
00
PB L
PB R
PB Mix
1
0
00
Monitor L
Monitor R
Monitor Mix
EE
Line Out Lch
Line Out Rch
RFC Out
1
1
00
Monitor L
Monitor R
Monitor Mix
PB
0
0
00
Normal
Normal
Normal
(Nor. Tape)
0
1
00
Noise
Noise
Noise
1
0
00
Normal
Normal
Normal
1
1
00
Monitor L
Monitor R
Monitor Mix
* When output Monitor signal to RFC OUT at Normal Tape replayed (G3D3:1), set G2D6 (HiFi auto Distinction) to 1 and select G2D4D3:0 (HiFi).
PS No.7955-15/21
LA72680M
Through Monitor Signal Path Supplementary Explanation
When output Monitor signal to RFC OUT at the time of replay (especially Normal Tape), care must be taken as
described below.
This IC has a function to auto distinguish HiFi and Normal by the presence or absence of Rch envelope, which can be
turned ON/OFF by using G2D6.
When output Monitor signal to REF OUT at the time of replay, turn off this function and make the following settings.
1) G2D6:1 (Auto detection OFF)
2) G3D3:1 (Select Through Monitor)
3) G2D4D3:00 (Select HiFi) Refer to the Through Monitor Switch Table above for each switch mode.
34pin
PB_FM_IN
48pin
PNR(L)
47pin
R-ch
EXT2
EXT3
Through
Monitor IN(R)
+
69pin
71pin
73pin
G1D8D7
G3D3
PB
EE
74pin
4pin
NOR
G2D6
Auto-Det. ON/OFF
0:ON
1:OFF
Through
Monitor
EXT3
EXT2
EXT1
23pin
Tracking
DC_Curve
30pin
MUTE
78pin
MIX G2D4D3
LINE OUT(R)
2pin
From MTS
REF OUT
11pin
9pin
7pin
INPUT
SELECTOR
EE
G1D8D7
G3D3
PB
MIX
G1D6
MUTE
HiFi
Through
Monitor
80pin
NOR G2D4D3
LINE OUT(L)
+ 12pin
100kΩ
Through
Monitor IN(L)
Tracking_DC
G1D6
HiFi
VREF
L-ch
FM_Level
Slicer
VREF
150kΩ
NORMAL
INPUT
SELECTOR
Noise_DET
100kΩ
EXT1
BPF(L)
+
From MTS
DEMOD(L)
VREF
+
PNR(L)
DEMOD(L)
BPF(L)
14pin 13pin
PS No.7955-16/21
LA72680M
Input Selecting Switch Mode Table (Switch output signal)
Sub address
0 1
0 2
HiFi
HiFi
Lch Input
Rch Output
NORMAL OUT
Data byte
D8
D7
D3
D2
D1
D8
D7
1
0
0
0
0
1
0
0
TU L
TU R
TU L+TU R
2
0
0
0
1
0
0
0
EXT1 L
EXT1 R
EXT1 L+EXT1 R
3
0
0
1
0
0
0
0
EXT2 L
EXT2 R
EXT2 L+EXT2 R
4
0
0
1
1
0
0
0
EXT3 L
EXT3 R
EXT3 L+EXT3 R
5
0
0
0
0
1
0
1
TU L
TU R
TU L
6
0
0
0
1
0
0
1
EXT1 L
EXT1 R
EXT1 L
7
0
0
1
0
0
0
1
EXT2 L
EXT2 R
EXT2 L
8
0
0
1
1
0
0
1
EXT3 L
EXT3 R
EXT3 L
9
0
0
0
0
1
1
0
TU L
TU R
TUR
10
0
0
0
1
0
1
0
EXT1 L
EXT1 R
11
0
0
1
0
0
1
0
EXT2 L
EXT2 R
12
0
0
1
1
0
1
0
EXT3 L
EXT3 R
13
0
1
0
0
0
0
0
PB L
PB R
14
0
1
0
1
0
0
0
PB L
PB R
EXT1 L+EXT1 R
15
0
1
1
0
0
0
0
PB L
PB R
EXT2 L+EXT2 R
16
0
1
1
1
0
0
0
PB L
PB R
EXT3 L+EXT3 R
17
0
1
0
0
0
0
1
PB L
PB R
18
0
1
0
1
0
0
1
PB L
PB R
EXT1 L
19
0
1
1
0
0
0
1
PB L
PB R
EXT2 L
20
0
1
1
1
0
0
1
PB L
PB R
EXT3 L
21
0
1
0
0
0
1
0
PB L
PB R
22
0
1
0
1
0
1
0
PB L
PB R
23
0
1
1
0
0
1
0
PB L
PB R
24
0
1
1
1
1
1
0
PB L
PB R
25
0
1
0
0
0
1
0
PB L
PB R
26
1
1
*
*
*
*
*
PB L
PB R
PB L+PB R
Reference
Audio-dubbing
correspond
NOTE : * is option.(1 or 0)
PS No.7955-17/21
LA72680M
Input selecting switch mode table ( Switch output signal )
Sub
0 1
address
Data
0 2
HiFi(80Pin
HiFi(78Pin)
NORMAL OUT
Lch Output
Rch Output
(6Pin)
D8
D7
D3
D2
D8
D7
1
0
0
0
0
0
0
TU L
TU R
TU L+TU R
2
0
0
0
1
0
0
EXT1 L
EXT1 R
EXT1 L+EXT1 R
3
0
0
1
0
0
0
EXT2 L
EXT2 R
EXT2 L+EXT2 R
4
0
0
1
1
0
0
EXT3 L
EXT3 R
EXT3 L+EXT3 R
5
0
0
0
0
0
1
TU L
TU R
TU L
6
0
0
0
1
0
1
EXT1 L
EXT1 R
EXT1 L
7
0
0
1
0
0
1
EXT2 L
EXT2 R
EXT2 L
8
0
0
1
1
0
1
EXT3 L
EXT3 R
EXT3 L
9
0
0
0
0
1
0
TU L
TU R
TU R
10
0
0
0
1
1
0
EXT1 L
EXT1 R
TU R
byte
11
0
0
1
0
1
0
EXT2 L
EXT2 R
TU R
12
0
0
1
1
1
0
EXT3 L
EXT3 R
TU R
13
0
1
0
0
0
0
PB L
PB R
TU L+TU R
14
0
1
0
1
0
0
PB L
PB R
EXT1 L+EXT1 R
15
0
1
1
0
0
0
PB L
PB R
EXT2 L+EXT2 R
16
0
1
1
1
0
1
PB L
PB R
EXT3 L
17
0
1
0
0
0
1
PB L
PB R
TU L
18
0
1
0
1
0
1
PB L
PB R
EXT1 L
19
0
1
1
0
0
1
PB L
PB R
EXT2 L
20
0
1
1
1
0
1
PB L
PB R
EXT3 L
21
0
1
0
0
1
0
PB L
PB R
TU R
22
0
1
0
1
1
0
PB L
PB R
-
23
0
1
1
0
1
0
PB L
PB R
-
24
0
1
1
1
1
0
PB L
PB R
-
25
1
0
*
*
*
*
PB L
PB R
PB L+PB R
Reference
Audio-dubbing
correspond
NOTE : * is option.(1 or 0)
PS No.7955-18/21
LA72680M
2
Serial data specification ( I C BUS communication )
Data Byte (An underline is the first condition.)
Address
MSB
LSB
D8
D7
EE/PB/Audio-dubbing
D6
D5
D4
D3
LINE OUT
Power Save
EE/REC
001:TUNER
010:EXT1
00:EE
00000001
D1
Input Source Select
MUTE
( 01 )
D2
01:PB
0:OFF
0:ON
0:EE
100:EXT2
10:Audio-dubbing
1:ON
1:OFF
1:REC
110:EXT3
Normal Input Source Select
Auto_HiFi
Just In Clock
OUTPUT MODE SELECT
OUTPUT SOURCE SELECT
Det
00:STEREO
00:HiFi
( 02 )
00:L/R MIX
00000010
01:Lch
0:ON
0:OFF
01:MIX
01:L-ch
10:TU(R)
1:OFF
1:ON
(HiFi+NOR)
10:R-ch
10:NORMAL
VCO
REC FM MIX
carrier
( 03 )
LINE OUT
THROUGH
HiFi DET
signal level
MONITOR
LEVEL
LEVEL
SELECT
SELECT
(MHz)
00:9dB
01:8dB
0:ON
0:-9dBV
0:OFF
0:1.3/1.7
10:10dB
1:OFF
1:-8dBV
1:ON
1:1.4/1.8
11:11dB
00000011
Fixed 0
Normal
REC current level select
( 04 )
00:CENTER
00000100
01:-1.5dB
10:-5.5dB
( 05 )
00000101
( 06 )
Fixed 0
0:TYP
0:TYP
1:+10%
1:-10%
RF MOD
INPUT ALC
ALC level
MUTE
0:OFF
1:3dB
MULTIPLEX mode select
NORMAL
OUT
Input gain
0:0dB
HiFi DET
DO
ON/OFF
0:-5dBV
0:ON
1:-1dBV
1:OFF
Fixed 0
Fixed 0
1:ON
Forced
Fixed 0
EP/SP
Fixed 0
MONO
00:BILINGUAL
01:MAIN
0:OFF
10:SUB
1:ON
0:SP
1:EP
Fixed 0 / Use in investigating the shipment.
00000110
( 07 )
Fixed 0 / Use in investigating the shipment.
00000111
Note: Address 00000110 and 00000111 are used in investigating the shipment, please send “0” data to all bits at refreshing the data.
PS No.7955-19/21
LA72680M
2
I C BUS serial interface specification
(1) DATA TRANSFER MANUAL
This IC adopts control method(I2C-BUS) with serial data, and controlled by two terminals which called SCL(serial
clock) and SDA (serial data).At first, set up the condition of starting data transfer*1, and after that, input 8 bit data to
SDA terminal with synchronized SCL terminal clock. The order of transferring is first, MSB (the Most Scale of
Bit),and save the order. The 9th bit takes ACK (ACKnowledge) period, during SCL terminal takes “H”, this IC pull
down the SDA terminal. After transferred the necessary data, two terminals lead to set up and of data transfer stop
condition*2, thus the transfer comes to close.
As a part of transfer data write down to internal memory (V latch system), internal control
doesn’t change just after the transfer.
*1 Defined by SCL rise down SDA during ‘H’ period.
*2 Defined by SCL rise up SDA during ‘H’ period.
(2) TRANSFER DATA FORMAT
After transfer start condition, transfers slave address(1110100*) to SDA terminal, next, sub address(0000****),
control data*3, then, stop condition(See figure 1). And this LSI have a auto address increment function, then, next of
slave address transfer, transfer sub address(n)*4, group (n ) data, after that, group (n+1) and so on.
Data works with all of the bit, transfer the stop condition before stop 8bit transfer, and to stop transfer, it will be
canceled only the data of group.
*3 There are 1 to 5 groups.
*4 Pointed date by sub address becomes group No. of next control data.
Fig.1 DATA STRUCTURE “WRITE” mode
START
Slave
R/W
Condition
Address
L *5
ACK Sub Address(n) ACK
Control data(n) ACK
control data(n+1)
ACK
……
STOP condition
*5 It is called R/W bit.
data-1 means data for group-1, data-2 means data for group-2.
(3) INITIALIZE
This IC is initialized for circuit protection.
The initialization period is decided Pin 16 capacity value by internal impedance 15kΩ, and shown with
t = -CR×Ln(0.2). Data cannot be accepted for this period.
t = 530ms at C = 22µF, In this case, Please transmit data in consideration of the uneven after about 700ms.
PS No.7955-20/21
LA72680M
(4) SERIAL INPUT SIGNAL FORMAT
Parameter
Symbol
min
max
unit
LOW level input voltage
VIL
-0.5
1.5
V
HIGH level input voltage
VIH
3.0
5.5
V
LOW level output current
IOL
3.0
mA
100
kHz
SCL clock frequency
fSCL
0
Set-up time for a repeated START condition
tSU:STA
4.7
µs
Hold time START condition. After this period, the first clock pulse is generated
tHD:STA
4.0
µs
tLOW
4.7
LOW period of the SCL clock
Rise time of both SDA and SDL signals
tR
HIGH period of the SCL clock
tHIGH
µs
0
1.0
µs
4.0
-
µs
tF
0
1.0
µs
Data hold time:
tHD:DAT
0
-
µs
Data set-up time
tSU:DAT
250
-
ns
Set-up time for STOP condition
tSU:STO
4.0
-
µs
tBUF
4.7
-
µs
Fall time of both SDA and SDL signals
BUS free time between a STOP and START condition
(5) Definition of timing
tR
tHIGH
tF
SCL
tHD:STA
tSU:STA
tLOW
tHD:DATA
tSU:DATA
tSU:STO
tBUF
SDA
SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using
products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license from the authorities concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,
without the prior written consent of SANYO Semiconductor Co.,Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's
intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of April, 2007. Specifications and information herein are subject
to change without notice.
PS No.7955-21/21