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LA72680M Datasheet(PDF) 3 Page - Sanyo Semicon Device

Part No. LA72680M
Description  JAPAN TV Sound Multiplex Demodulation HiFi Sound Signal Processor
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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 3 page
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LA72680M
No.7955-3/21
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
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)
-11
-9
-7
dBV
Output level Rch
VOPR
fc=1.7MHz±50kHz, fm=1kHz, Gain=1 (G3D4:0)
-11
-9
-7
dBV
Output level difference
VDEM
fc=1.3MHz±50kHz, fm=1kHz
fc=1.7MHz±50kHz, fm=1kHz
Lch-Rch, Gain=1 (G3D4:0)
-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=1.3MHz & 1.7MHz),
DO detection level
DOC
The ratio with Standard input
pin 31=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
2.1
2.6
3.1
V
HiFi detection DC output 2
VTRS2
Pin 34 input level=300mVp-p
3.3
3.8
4.3
V
HiFi detection DC output 3
VTRS3
Pin 34 input level=1Vp-p
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
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
1.3MHz BPF
frequency characteristics 1
L115N
Level difference between 1.15M/1.3MHz
G2D2D1;01
-13
-5
dB
1.3MHz BPF
frequency characteristics 2
L145N
Level difference between 1.45M/1.3MHz
G2D2D1;01
-13
-5
dB
1.3MHz BPF
frequency characteristics 3
L155N
Level difference between 1.55M/1.3MHz
G2D2D1;01
-20
-10
dB
1.7MHz BPF
frequency characteristics 1
R145N
Level difference between 1.45M/1.7MHz
G2D2D1;10
-15
-5
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
-9
-3
dB
Playback head amp system
(PB HEAD AMP IN to OUT), PB mode
Voltage gain
GVP
VIN=100µVp-p, f=1.5MHz, CH1&2
66
69
72
dB
Voltage gain difference
CH1/CH2
∆GVP
-2
0
2
dB
EP gain boost value
∆GEP
VIN=100µVp-p, f=1.5MHz
1
2
3.2
dB
Frequency characteristics
∆fP
VIN=100µVp-p, f=1.8M/1.0MHz, CH1&2
-3
-1
1
dB
Input conversion noise voltage
VNINP
The value(1 / GVP) of 1.1MHz LPF output
level
1.7
2
µVrms
Output DC offset
∆VODC
CH1/CH2
-30
0
30
mV
REC AMP system
REC mode, The external resistor at pin 28 = 2.7k
REC current
IOR
Inflow current at pin 26
34
37
40
mA
Cross modulation distortion
0.4MHz component
CMDO4
Rch carrier level standard
-48
-40
dB
Cross modulation distortion
0.9MHz component
CMDO9
Rch carrier level standard
-55
-40
dB
current ratio +2dB
IOR+2dB
P23:0V,G4D6D5:01
1.6
2.0
2.4
dB
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.




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