SANYO LA7386

Ordering number: EN 5472
Monolithic Linear IC
LA7386
NTSC Video Signal Processing LSI for VCRs
Overview
Package Dimensions
unit : mm
The LA7386 combines luminance signal processing functions
and color signal processing functions for NTSC VCRs on a
single chip. Developed as a new-generation LSI for use in
VCRs which offer increasingly higher image quality, the
LA7383 offers all of the functions needed in order to realize
improved picture quality in a dramatically compact 36-pin
package, making this device suitable for a wide range of
VCRs, from popularly priced models to high-end models.
3170-DIP36S
[LA7386]
SANYO : DIP36S
Features
. Includes all functions required for video signal processing in an NTSC VCR.
. Supports full HQ functions.
.
.
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.
.
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.
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YNR on chip (standard).
CNR on chip (external components can be removed for passthrough operation).
Detail enhancer on chip.
Higher white clipping level (190%).
In addition to the above, also provides the following functions for excellent image quality:
Edge compensation.
Double high-pass noise canceller → permits wide-band noise reduction.
Linear phase-type image quality adjustment → ideal image quality adjustment method, with no waveform distortion.
By adopting the 1CCD method, one comb filter (glass) has become unnecessary.
Has a single 1H-delay CCD and a comb Y/C separation/YNR chroma crosstalk canceller function on chip.
Automatic adjustment filter on chip.
Y: LPF
C: 3.58 MHz BPF, 4.21 MHz BPF, LPF (REC)
No adjustment required for white and dark clipping levels.
Extremely few peripheral components (about 60 components, excluding peripheral components for the CCD).
fsc output can be used as clock for OSD IC.
Crystal oscillator for the on-screen display circuit is not required.
DCC circuit on chip.
Suppresses flicker at top of screen and reduces AM noise.
High-speed AFC circuit.
Prevents color alteration and loss at top of screen when dubbing.
Head switching noise reduction circuit on chip.
Smallest package in the industry.
Few components needed.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
22896HA(II) No.5472 - 1/13
LA7386
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
Conditions
Ratings
VCCmax
Allowable power dissipation
Pdmax
Unit
7.0
Ta % 65°C
V
1070
mW
Operating temperature
Topr
–10 to +65
°C
Storage temperature
Tstg
–40 to +150
°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
VCC
Operating supply voltage range
VCCop
Conditions
Ratings
Unit
5.0
V
4.8 to 5.2
V
Operating Characteristics at Ta = 25°C, VCC = 5 V
Parameter
Symbol
Conditions
min
typ
max
Unit
ICCR
When VCC = 5 V (when there is no signal),
measure sum of incoming currents at pins 29 and
24
95
120
145
mA
[REC Mode Y]
Current consumption REC
AGC adjustment
CAGC
VIN = 1.0 Vp-p video signal, use VR33 to adjust
T3 output to 0.5 Vp-p
VCA control characteristics 1
VCA 1
Measure T3 output level when S9 is set to 2
0.48
0.5
0.52
Vp-p
VCA control characteristics 2
VCA 2
Measure T3 output level when S9 is set to 4
0.48
0.5
0.52
Vp-p
AGC adjustment voltage
VAGC
Measure T33 DC voltage in above state
3.2
3.4
3.6
V
AGC detection voltage
VAD
Measure T32 DC voltage in same manner
1.2
1.4
1.6
V
EE output level
VEE
Measure T28A output level in same manner
0.95
1.0
1.05
Vp-p
AGC output 1
AGC 1
VIN = 2.0 Vp-p video signal
Measure T3 output level
500
520
540
mVp-p
AGC output 2
AGC 2
VIN = 0.5 Vp-p video signal
Measure T3 output level
460
480
500
mVp-p
AGC output 3
AGC 3
VIN = 714 mVp-p LUMI, 572 mVp-p SYNC,
measure T3 SYNC level
135
150
165
mVp-p
AGC output 4
AGC 4
VIN = 714 mVp-p LUMI, 143 mVp-p SYNC,
measure T3 SYNC level
90
100
110
mVp-p
Sync separation output level
VSYR
VIN = 1.0 Vp-p video signal,
T26 output pulse peak value
4.0
4.2
4.4
Vp-p
Sync separation output pulse
width
PWSYR
VIN = 1.0 Vp-p video signal,
T26 output pulse width
4.0
4.3
4.6
µs
Sync separation output leading
edge delay time
∆ TSYR
VIN = 1.0 Vp-p video signal, measure delay time
of output SYNC versus input SYNC
0.8
1.0
1.2
µs
Sync separation threshold level
THSYR
Gradually attenuate the input level, measure input
level at point when output pulse width widens 1
µs or more beyond PWSYR
–18
–14
dB
2.95
3.10
V
Sync tip level,
pedestal level,
white level measurement
(REC)
LVOR
Measure electric potential for each of the T28
video output sync tip, pedestal, and white peak,
and assign the measured values to LSYN, LPED,
and LWHI, respectively
VCA detection voltage
VVCA
Measure T8 DC voltage
Comb filter adjustment
2.80
VIN = standard multiburst signal 1 Vp-p and S30
= off, adjust so that the 3.58 MHz component at
T21 is at a minimum
Y-comb characteristics
GY-Comb
Measure the chroma level at T2 with a spectrum
analyzer, VIN = standard chroma noise test signal
1 Vp-p and S30 = off
–25
dB
C-comb characteristics
GC-Comb
VIN = white 50% + CW 3.0 MHz
–25
dB
Continued on next page.
No.5472 - 2/13
LA7386
Continued from preceding page.
min
typ
max
Unit
REC YNR operation
EP/LP (1)
Parameter
VR-YNR1
Measure the YNR addition level at T2 with VIN =
standard color bar signal 1 Vp-p and S30 = off
10
12
14
mV
REC YNR operation
EP/LP (2)
VR-YNR2
Measure the YNR addition level at edit mode T2
with VIN = standard color bar signal 1 Vp-p and
S30 = off
2
3
4
mV
Pre-CCD LPF
frequency characteristics (1)
GPFIL1
Input a standard multiburst signal (1 Vp-p) and
measure the 4 MHz response for 500 kHz at T11
–0.5
0
+0.5
dB
Pre-CCD LPF
frequency characteristics (2)
GPFIL2
10 MHz response for 500 kHz at T11 when
VIN = standard multiburst signal 1 Vp-p and
S30 = off
–10
–8
–6
dB
3MLPF
frequency characteristics (1)
G3MLP1
1 MHz response for 500 kHz at T2 when VIN =
standard multiburst signal 1 Vp-p and S30 = off
–0.5
0
+0.5
dB
3MLPF
frequency characteristics (2)
G3MLP2
2 MHz response for 500 kHz at T2 when VIN =
standard multiburst signal 1 Vp-p and S30 = off
–1
0
+1
dB
3MLPF
frequency characteristics (3)
G3MLP3
3 MHz response for 500 kHz at T2 when VIN =
standard multiburst signal 1 Vp-p and S30 = off
–10
–8
–6
dB
3MLPF
frequency characteristics (4)
G3MLP4
3.58 MHz response for 500 kHz at T2 when
VIN = standard multiburst signal 1 Vp-p and
S30 = off
–30
dB
3MLPF
frequency characteristics (5)
G3MLP5
4.2 MHz response for 500 kHz at T2 when
VIN = standard multiburst signal 1 Vp-p and
S30 = off
–15
dB
1.0
1.12
Vp-p
–40
–35
dB
FM modulator output level
Symbol
Conditions
VFM
No input, use VR36 to adjust output frequency to
4 MHz, measure output level
FM modulator
secondary distortion
HMOD
Ratio of 8 MHz component to 4 MHz in the above
state
FM modulator
modulation sensitivity
SMOD
Measure amplitude of change in output frequency
when 2.6 V DC or 3.1 V DC is applied to T3,
2 x (f3.1 – f2.6)
1.6
2.0
2.4
MHz/V
FM modulator linearity
LMOD
Measure output frequency when 2.85 V DC
applied to T3, f2.85
f2.85 – (f3.1 + f2.6)/2
LMOD =
x 100
f3.1 – f2.6
–3
0
+2
%
0.89
1/2 fH carrier shift 1
CS1
Measure amplitude of change in output frequency
when SW35B is from on to off and SW35A is off
6.8
7.8
9.5
kHz
1/2 fH carrier shift 2
CS2
Measure amplitude of change in output frequency
when SW35A is on and SW35B is switch from on
to off
6.8
7.8
9.5
kHz
Emphasis gain
GEMP
VIN = 0.5 mVp-p 10 kHz sine wave
Measure ratio of levels of input and output
amplitude at T4
–0.5
0
+0.5
dB
Detail enhancer characteristics
(1)
GENH1
VIN = 158 mVp-p 2 MHz sine wave
Measure ratio of levels of T4 and T3, difference
with GEMP
1.6
1.9
2.6
dB
Detail enhancer characteristics
(2)
GENH2
VIN = 50 mVp-p 2 MHz sine wave
Measure ratio of levels of T4 and T3, difference
with GEMP
3.1
4.1
5.1
dB
Detail enhancer characteristics
(3)
GENH3
VIN = 15.8 mVp-p 2 MHz sin wave
Measure ratio of levels of T4 and T3, difference
with GEMP
5.3
6.3
7.3
dB
Detail enhancer characteristics
(4)
GENH4
VIN = 15.8 mVp-p 2 MHz sine wave
Measure output amplitude at T4 in edit mode,
difference with GEMP
2.9
3.9
4.9
dB
Nonlinear emphasis
characteristics (1)
GNLEMP1
VIN = 500 mVp-p 2 MHz
Measure ratio of levels of T4 and T3, difference
with GEMP
0.5
1.4
2.3
dB
Nonlinear emphasis
characteristics (2)
GNLEMP2
VIN = 158 mVp-p 2 MHz
Measure ratio of levels of T4 and T3, difference
with GEMP
2.6
3.8
5.2
dB
Continued on next page.
No.5472 - 3/13
LA7386
Continued from preceding page.
Parameter
min
typ
max
Unit
GNLEMP3
VIN = 50 mVp-p 2 MHz
Measure ratio of levels of T3 and T4, difference
with GEMP
4.9
6.4
7.9
dB
Main linear emphasis
characteristics (1)
GME1
VIN = 50 mVp-p 500 kHz sine wave
Measure ratio of levels of T4 and T3, difference
with GEMP
4.9
5.2
5.5
dB
Main linear emphasis
characteristics (2)
GME2
VIN = 50 mVp-p 2 MHz
Measure ratio of levels of T4 and T3, difference
with GEMP
13.1
13.6
14.1
dB
Nonlinear emphasis
characteristics (3)
Symbol
Conditions
Detail enhancer US mode
characteristics (1)
GENHS1
Measure the amplitude at T4 when
VIN = 15.8 mVp-p 2 MHz sine wave; compare
level with GEMP
2.9
3.9
4.9
dB
Detail enhancer US mode
characteristics (2)
GENHS2
Measure the amplitude at T4 when
VIN = 15.8 mVp-p 2 MHz sine wave in edit mode;
compare level with GEMP
0.7
1.7
2.7
dB
White clipping level
LWC
VIN = 500 mVp-p white 100% video
Measure white clipping level at T4
186
193
200
%
Dark clipping level
LDC
VIN = 500 mVp-p white 100% video
Measure dark clipping level at T4
–50
–45
–40
%
Current consumption PB
ICCP
Incoming currents at pins 29 and 24 when
VCC = 5.0 V
125
155
185
mA
Dropout compensation period
TDOC
T33A: 4 MHz, 300 mVp-p sine wave
T3A: 0.5 Vp-p video signal
T33A: time from when input went to 0 until T28A
output returned
0.6
1.0
ms
[PB Mode Y]
FM demodulation voltage
VDEM4
VIN = 300 mVp-p, f = 4 MHz, output voltage
0.9
1.05
1.15
V
FM demodulation sensitivity
SDEM
VIN = 300 mVp-p, f = 2 MHz, VDEM2
VIN = 300 mVp-p, f = 6 MHz, VDEM6
Calculate SDEM = (VDEM2 – VDEM6)/4
0.11
0.14
0.17
V/MHz
FM demodulation linearity
LDEM
– (VDEM2 + V DEM6)/2
V
LDEM = DEM4
VDEM2 – VDEM6
–3.5
0
+3.5
%
VIN = 300 mVp-p, f = 4 MHz
Ratio between 4 MHz component of T1 and
SDEM
–40
–35
dB
VIN = 500 mVp-p video signal (ramp waveform)
22
Carrier leakage
Noncorrelation detection level
CL
VCORR
x 100
IRE
PB YNR characteristics
LP/EP (1)
GP-YNR1
VIN = 500 mVp-p noise test signal –30 dB
S/N difference with S6 on/off
2.5
dB
PB YNR characteristics
LP/EP (2)
GP-YNR2
VIN = 500 mVp-p noise test signal –30 dB
S/N difference with EDIT on/off; pin 36 low
1.5
dB
PB YNR characteristics
SP (3)
GP-YNR3
VIN = 500 mVp-p noise test signal, –30 dB
S6 edit on/off S/N ratio Pin36 low
1.5
dB
Playback through gain
GPB
Apply VIN = 0.5 Vp-p video signal to pin 3, and
determine ratio between pin 28 output level and
input level
4.5
6.0
7.5
dB
Dropout detection (feedback)
level
LDOC
T33A: 4 MHz, 300 mVp-p sine wave
T3A: 0.5 Vp-p video signal
Measure input signal level when T33A signal
drops momentarily and T28A output goes to 0
30
40
50
mVp-p
Nonlinear de-emphasis
characteristics (1)
GNLDEEM1
NIN = white 50% video + sine wave
f = 2 MHz, 158 mVp-p
Measure I/O response, and assign output level
described above as 0 dB
–6.0
–5.0
–4.0
dB
Nonlinear de-emphasis
characteristics (2)
GNLDEEM2
f = 2 MHz, 50 mVp-p
–9.0
–8.0
–7.0
dB
Double noise canceller
characteristics (1)
GWNC1
f = 2 MHz, 158 mVp-p
–2.3
–1.8
–1.3
dB
Double noise canceller
characteristics (2)
GWNC2
f = 2 MHz, 50 mVp-p
–6.0
–5.0
–4.0
dB
Continued on next page.
No.5472 - 4/13
LA7386
Continued from preceding page.
min
typ
max
Unit
Double noise canceller
characteristics (3)
Parameter
GWNC3
Symbol
f = 2 MHz, 15.8 mVp-p
Conditions
–10.5
–9.0
–7.5
dB
Double noise canceller
characteristics (4)
GWNC4
f = 3.58 MHz, 158 mVp-p
–2.0
–1.5
–1.0
dB
Double noise canceller
characteristics (5)
GWNC5
f = 3.58 MHz, 50 mVp-p
–5.1
–4.1
–3.1
dB
Double noise canceller
characteristics (6)
GWNC6
f = 3.58 MHz, 15.8 mVp-p
–10.5
–8.5
–7.0
dB
PIC-CTL hard response
characteristics (1)
GPH1
f = 1 MHz, 158 mVp-p
3.5
4.5
5.5
dB
PIC-CTL hard response
characteristics (2)
GPH2
f = 2 MHz, 158 mVp-p
7
8
9
dB
PIC-CTL soft response
characteristics (1)
GPS1
f = 1 MHz, 158 mVp-p
–5.5
–4.5
–3.5
dB
PIC-CTL soft response
characteristics (2)
GPS2
f = 2 MHz, 158 mVp-p
–9
–8
–7
dB
PIC-CTL center response
characteristics
GPC
f = 2 MHz, 158 mVp-p
1.0
1.5
2.0
dB
–1.0
0
+1.0
dB
DOC loop gain Y
GDOC
T33A: 4 MHz, 300 mVp-p sine wave
T3A: 0.5 Vp-p video signal
I/O response 5H after instant when input at T33A
went to 0
Sync tip level,
pedestal level,
white level measurement (PB)
LVOR
With VIN = white 100% 0.5 Vp-p
Measure electric potential for each of the pin 28
video output sync tip, pedestal, and white peak,
and assign the measured values to LSYN, LPED,
and LWHI, respectively
Pseudo V insertion level (PB)
∆ VDP
Measure pin 28 DC voltage when 5 V is applied
to pin 26, and assign the measured value to
LVDP, and calculate the difference with LSYN
∆ VDP = LSYN – LVDP
–80
0
+80
mV
Pseudo H insertion level (PB)
∆ HDP
Measure pin 28 DC voltage when 2.5 V is applied
to pin 26, and assign the measured value to
LHDP, and calculate the difference with LPED
∆HDP = LPED – LHDP
–200
–100
0
mV
White insertion level (PB)
∆WHP
Measure pin 28 DC voltage when 1.3 V is applied
to pin 26, and assign the measured value to
LWHP, and calculate the difference with LWHI
∆WHP = LWHI – LWHP
40
140
240
mV
Sync separation output level
VSYP
VIN = 0.5 Vp-p video signal
Pin 26 output pulse peak value
4.0
4.2
4.4
Vp-p
Sync separation output pulse
width
PWSYP
VIN = 0.5 Vp-p video signal
Pin 26 output pulse width
4.0
4.3
4.6
µs
Sync separation output leading
edge delay time
∆ TSYP
VIN = 0.5 Vp-p video signal, measure delay time
of output SYNC versus input SYNC
1.4
1.6
1.8
µs
REC chroma
Y/C separation output level
VOR-21
VIN = standard color bar signal (1 Vp-p)
Measure burst level at T21
170
220
270
mVp-p
REC chroma low-band
conversion output level
VOR-14
VIN = standard color bar signal (1 Vp-p)
Measure burst level at T14A
230
330
430
mVp-p
Burst emphasis amount
GBE
VIN = standard color bar signal (1 Vp-p)
Ratio of burst level at T14A when S35A is off
(SP/EP) and on (LP)
5.5
6.0
6.5
dB
VXO oscillation level
VVXO-R
VIN = standard color bar signal (1 Vp-p),
measure T18 output amplitude (with an FET
probe)
360
450
540
mVp-p
REC ACC characteristics 1
ACCR1
VIN = standard color bar signal (1 Vp-p),
input +6 dB chroma signal level only, measure
T14A burst level, and calculate ratio with VOR-14
+0.2
+0.5
dB
—
[REC Mode Chroma]
Continued on next page.
No.5472 - 5/13
LA7386
Continued from preceding page.
min
typ
REC ACC characteristics 2
Parameter
ACCR2
VIN = standard color bar signal (1 Vp-p),
input –6 dB chroma signal level only, measure
T14A burst level, and calculate ratio with VOR-14
–0.5
–0.1
REC ACC killer input level
VACCK-ON
VIN = standard color bar signal (1 Vp-p),
lower the chroma signal, and measure the input
burst level at the point where output at T14A
ceases, and calculate the ratio with the standard
input level
–30
–27
–24
dB
VOACCK
Use a spectrum analyzer to measure the output
level at T14A in the killer state described
previously; ratio with VOR-14
–60
–50
dB
REC ACC killer output level
Input level for REC ACC killer
return
Symbol
Conditions
max
Unit
dB
VACCK–OFF
Starting from the killer state described previously,
gradually raise the input chroma level and
measure the input burst level when output is
generated at T14A and calculate the ratio with the
standard input level
–24
–21
–18
dB
SVXO
Measure the pin 16 DC voltage when a standard
color bar signal (1 Vp-p) is input ... VO
Measure the frequency at T18A when V0 is
applied to pin 16 from the external power
supply...f1
Measure the frequency at T18A when VO + 10
mV is applied to pin 16 ...f2
f –f
SVXO = 2 1 Hz/mV
10
3.3
4.9
7.5
Hz/mV
REC APC pull-in range 1
∆ fAPC1
Input a 50% white signal overlapping with a
3.5795 MHz, 300 mVp-p continuous wave. After
confirming that there is output at T14A, increase
the frequency of the CW until the output at T14A
stops, and then gradually reduce the frequency
until output appears again at T14A; that CW
frequency is f1.
∆fAPC1 = f1 – 3579545 (Hz)
350
440
REC APC pull-in range 2
∆ fAPC2
In the same manner, reduce the frequency of the
CW until the output at T14A stops, and then
gradually increase the frequency until output
appears again at T14A; that CW frequency is f2.
∆fAPC2 = f2 – 3579545 (Hz)
–900
BGP delay time for APC ACC
tD(N)
Input a standard color bar signal overlapping with
a 3.98 MHz, 300 mVp-p continuous wave, and
measure waveforms at T26 and T16.
4.8
µs
BGP pulse width for APC ACC
tW(N)
2.5
µs
+7.0
kHz
VXO control sensitivity
REC AFC pull-in range 1
∆fAFC1
Input a string of pulses (negative polarity) at
286 mV, 15.7 kHz with a width of 5 µs. After
increasing the frequency of the pulse string until
the waveform at pin 20 is disrupted, then reduce
the frequency until the waveform at pin 20 is
normal again; that pulse string frequency is f1
+1.0
Hz
–350
Hz
∆fAFC1 = f1 – 15.734 (kHz)
Continued on next page.
No.5472 - 6/13
LA7386
Continued from preceding page.
Parameter
Symbol
Conditions
∆ fAFC2
In the same manner, after reducing the frequency
of the pulse string until the waveform at pin 20 is
disrupted, then increase the frequency until the
waveform at pin 20 is normal again; that pulse
string frequency is f2
∆fAFC2 = f2 – 15.734 (kHz)
PB chroma video output level
Vop-28
In PB, SP mode, input a continuous wave from
T14A a chroma signal (SP mode, burst 50 mVp-p)
that underwent low-band conversion from a
chroma noise test signal. Input a 50% white
signal from T3A and measure the T28A burst
level
PB chroma pin 21 output level
Vop-21
Measure the T21 burst level under the same
conditions as for Vop-28
PB ACC characteristics 1
ACCP1
Input the input chroma level at +6 dB under the
same conditions as for Vop-28 and measure the
T21 burst level, and calculate the ratio with
Vop-21
PB ACC characteristics 2
ACCP2
Input the input chroma level at –6 dB under the
same conditions as for Vop-28 and measure the
T21 burst level, and calculate the ratio with
Vop-21
–0.5
PB killer input level
VACK-P
Lower the input chroma level under the same
conditions as for Vop-28 and measure the input
burst level at the point where T21 chroma output
ceases. (Calculate ratio with standard input of
50 mVp-p)
–55
REC AFC pull-in range 2
min
typ
max
Unit
–6.3
–1.0
kHz
210
260
310
mVp-p
170
200
230
mVp-p
+0.5
+0.8
dB
[PB Mode Chroma]
PB killer chroma output level
VOACK-P
–0.2
dB
–40
dB
Use a spectrum analyzer to measure the T28
chroma output level in the killer state described
previously. Calculate ratio with Vop-28.
–44
–40
dB
–40
–33
dB
–4.35
–4.6
–4.85
dB
PB main converter carrier leak
CLP
Monitor T28A with a spectrum analyzer under the
same conditions as for Vop-28 and calculate the
ratio between the 3.58 MHz component and the
4.21 MHz carrier leak component.
Burst de-emphasis amount
GBD
From T14A, input a 629 kHz 50 mVp-p
continuous wave; from T3A, input a 50% white
signal, and calculate the ratio between the output
level during the T21 burst interval and the output
level during other intervals
PB XO output level
VXO-P
In PB mode, measure the T18 output level with
an FET probe
480
610
750
mVp-p
PB XO oscillation frequency
variation
∆ fXO
In PB mode, measure the frequency at T18...f
∆fXO = f – 3579545 (Hz)
–7
0
+7
Hz
SLD detection current 1
ISLD1
In PB mode, with S20: 3 and S19: off, input a
4 MHz 300 mVp-p continuous wave from T33A,
input a 50% white signal from T3A, and measure
the wave peak at T19A
110
160
210
µA
ISLD1 = VOS1/1 kΩ
Continued on next page.
No.5472 - 7/13
LA7386
Continued from preceding page.
Parameter
SLD detection current 2
Symbol
Conditions
min
typ
max
Unit
ISLD2
In PB mode, with S20: 3 and S19: off, input a
4 MHz 300 mVp-p continuous wave from T33A,
input a 50% white signal from T3A, and measure
the wave peak at T19A
110
160
210
µA
ISLD2 = VOS2/1 kΩ
4.2 V regulator operation
confirmation (1)
V42(R)
SW25 → 1 measure T25 DC level REC mode
4.2
VDC
4.2 V regulator operation
confirmation (2)
V42(P1)
SW25 → 1 measure T25 DC level PB mode
4.2
VDC
4.2 V regulator operation
confirmation (3)
V42(P2)
SW25 → 2 measure T25 DC level PB mode
4.2
VDC
No.5472 - 8/13
LA7386
Test Circuit Diagram
Unit (resistance:Ω, capacitance: F)
No.5472 - 9/13
EP
LP
SP
Mode
C
C
C
C
C
C
C
C
C
Off
(normal)
On (1)
pin 23 H
On (2)
pin 12 H
Off
(normal)
On (1)
pin 23 H
On (2)
pin 12 H
Off
(normal)
On (1)
pin 23 H
On (2)
pin 12 H
Edit
X
X
C
X
X
C
X
X
X
C
C
C
C
C
C
X
X
X
C
C
C
X
X
X
C
C
C
C
C
C
C
C
C
X
X
X
Y/C
Y/C
separation
separation
Burst
NL
1/2 fH
by comb filter by comb filter shift emphasis emphasis
(REC)
Y
C
(REC)
(REC)
(REC)
(REC)
LA7386 Mode Table
X
X
K0.2
LIM 5IRE
YNR
(PB)
K0.25
LIM 3
K0.25
LIM 3
K0.65
LIM 5IRE
K0.25
LIM 3
K0.25
LIM 3
K0.2
LIM 5
K0.2
LIM 5
K0.5
LIM 5
K0.2
LIM 5
K0.2
LIM 5
K0.65
K0.5
LIM 5IRE LIM 11IRE
X
X
K0.5
LIM 3IRE
YNR
(REC)
C
C
C
C
C
C
C
C
C
High-pass,
NC double
type
(PB)
C
X
C
C
X
C
C
X(off)
C
CNR
(PB)
Mid-point
C
C
Mid-point
C
C
Mid-point
C
C(variable)
PIC.CTL
(PB)
Medium
Medium
Strong
Medium
Medium
Strong
Medium
Medium
Strong
APC.
DET.
(PB)
Weak
Weak
Medium
Weak
Weak
Medium
Weak
Weak
After
After
After comb
After
After
After comb
Before
Before
(US)
Before comb
Medium
Detail enhancer
(REC)
X
X
X
X
X
X
C
C
C
Crosstalk
correlation
switching
(PB)
LA7386
No.5472 - 10/13
LA7386
Control Pin Function Chart
Pin No.
L
M
Pin 4
R/P switching
Open
REC mode
Over 3.8 V
PB mode
Pin 6
SP/EP switching
Open
EP mode
Over 3.9 V
SP mode
Pin 12
EDIT2
PIC-CTL
2 V to 2.5 V
PIC-CTL
SOFT
Pin 16
Special playback switching
Pin 23
EDIT1
US
Under 1.5V
H
2.5 V to 3 V
PIC-CTL
HARD
Over 3.6 V
EDIT2 on
Open
Before comb in SP
Over 3.5 V
(over 200 µA)
After comb in SP
Open
Over 2.5 V
EDIT1 on
US specifications
Pin 27
QV, QH, CHAR
Pin 34
DOC STOP control
Pin 35
ROTARY pulse
LP switching
Refer to pin 27,
QV, QH, CHAR,
insertion diagram
Open
Normal mode
Over 3.9 V
DOC STOP
SW30
Tape
speed
SP or EP mode
LP mode
LA7386
Pin 27
QV, QH, CHAR, insertion
Pin 28 output
Through
(V)
Pin 27 control voltage
No.5472 - 11/13
LA7386
Application Circuit Examples
Unit (resistance: Ω, capacitance: F)
No.5472 - 12/13
LA7386
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of February, 1996. Specifications and information herein are subject to change without notice.
No.5472 - 13/13