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LA72670BM Datasheet(PDF) 3 Page - Sanyo Semicon Device

Part No. LA72670BM
Description  US multiplex modulation for VCR HiFi Sound Signal Processor
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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LA72670BM
No.A0644-3/20
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
FM R/Lch MIX ratio 1
MIX1
Non modulation, VfoR/VfoL,
P23:OV,P34.Measure, G3D7D6;01
7.1
7.6
8.1
dB
FM R/Lch MIX ratio 2
MIX2
Non modulation, VfoR/VfoL ,
P23:OV,P34.Measure,G3D7D6;00
8.1
8.6
9.1
dB
FM R/Lch MIX ratio 3
MIX3
Non modulation, VfoR/VfoL,
P23:OV,P34.Measure, G3D7D6;10
9.1
9.6
10.1
dB
FM R/Lch MIX ratio 4
MIX4
Non modulation, VfoR/VfoL, P23:OV,
P34.Measure, G3D7D6;11
10.1
10.6
11.1
dB
Carrier 2nd high frequency
2HD
Non modulation, To each basic frequency.
-48
-34
dB
Carrier 3rd high frequency
3HD
Non modulation, To each basic frequency.
-43
-34
dB
REC current
IOR
P23:0V, Inflow current at P26, with current
probe
34
37
40
mAp-p
Cross modulation distortion
0.4M component
CMDO4
P23:0V, Compare 0.4MHz with Rch Carrier
Level
-48
-40
dB
modulation distortion 0.9M
component
CMDO9
P23:0V, Compare 0.9MHz with Rch Carrier
Level
-55
-40
dB
current ratio –1.5dB
IOR-1.5dB
P23:0V G4D6D5:01(-1.5dB)
-2.3
-1.3
-0.3
dB
current ratio – 5.5dB
IOR-5.5dB
P23:0V G4D6D5:10(-5.5dB)
-6.8
-5.8
-4.8
dB
MUTE attenuation value
IORMU
REC MUTE ON(Pin 17=H)
-40
dB
[FM modulation system] (PB FM IN to LINE OUT), PB mode(G1D8D7;01), FM standard input=300mVp-p(R/Lch ratio=1:1)
Output level Lch
VOPL
fc=1.3±50kHz, fm=1kHz,G=1
-11
-9
-7
dBV
Output level Rch
VOPR
fc=1.7MHz±50kHz, fm=1kHz,G=1
-11
-9
-7
dBV
Output level difference
VDEM
fc=1.3MHz±50kHz, fm=1kHz
fc=1.7MHz±50kHz, fm=1kHz
Lch-Rch
-1.5
0
1.5
dB
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
%
[DO detector / HiFi detector] PB mode(DO DET : fc=1.3MHz / HiFi DET : fc=1.7MHz), G1D8D7:01
DO detection level
DOC
The ratio with Standard input 300mVp-p
-26
-23
dB
DO detection hysteresis
DOCH
0.5
3
5
dB
HiFi recovery delay time
HIDEL
The delay time that is changed from NORMAL
to HiFi.
110
125
140
ms
HiFi detection DC output 1
VTRS1
Pin 34 INPUT_Level=100mVp-p, 1.3MHz
2.1
2.6
3.1
V
HiFi detection DC output 2
VTRS2
Pin 34 INPUT_Level=300mVp-p, 1.3MHz
3.3
3.8
4.3
V
HiFi detection DC output 3
VTRS3
Pin 34 INPUT_Level=1Vp-p, 1.3MHz
4.3
4.8
5.3
V
NORMAL detection
DC output
NORDC
Pin 34 INPUT_Level=0mVp-p
0.4
V
[Hold pulse occurrence] PB mode, G1D8D7:01
Hold pulse delay time
HPD
AUDIO HEAD PULSE IN
0.8
1.0
1.2
µs
Hold pulse width
HPW
AUDIO HEAD PULSE IN
7.0
8.3
9.5
µs
[Band pass filter] PB mode, PB IN = 150mVp-p(R/L MIX ratio 1:1)at Pin 31, Pin 17;2.5V, G1D8D7;01,
1.3MHz BPF monitor level
V13
G2D2D1;01
80
105
130
mVp-p
1.7MHz BPF monitor level
V17
G2D2D1;10
65
90
115
mVp-p
1.3MHz BPF
frequency characteristics 1
L115N
Level difference between 1.15M/1.3MHz
G2D2D1;01
-9
-3
dB
1.3MHz BPF
frequency characteristics 2
L145N
Level difference between 1.45M/1.3MHz
G2D2D1;01
-18
-8
dB
1.3MHz BPF
frequency characteristics 3
L155N
Level difference between 1.55M/1.3MHz
G2D2D1;01
-27
-9
dB
1.7MHz BPF
frequency characteristics 1
R145N
Level difference between 1.45M/1.7MHz
G2D2D1;10
-18
-8
dB
1.7MHz BPF
frequency characteristics 2
R155N
Level difference between 1.55M/1.7MHz
G2D2D1;10
-9
-3
dB
1.7MHz BPF
frequency characteristics 3
R185N
Level difference between 1.85M/1.7MHz
G2D2D1;10
-12
-2
dB
Continued on next page.




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