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LA7386 데이터시트 PDF




Sanyo에서 제조한 전자 부품 LA7386은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 LA7386 기능
기능 NTSC Video Signal Processing LSI for VCRs
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LA7386 데이터시트, 핀배열, 회로
Ordering number: EN 5472
Monolithic Linear IC
LA7386
NTSC Video Signal Processing LSI for VCRs
Overview
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.
Package Dimensions
unit : mm
3170-DIP36S
[LA7386]
SANYO : DIP36S
Features
. Includes all functions required for video signal processing in an NTSC VCR.
. Supports full HQ functions.
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 pdf, 반도체, 판매, 대치품
LA7386
Continued from preceding page.
Parameter
Nonlinear emphasis
characteristics (3)
Main linear emphasis
characteristics (1)
Main linear emphasis
characteristics (2)
Detail enhancer US mode
characteristics (1)
Detail enhancer US mode
characteristics (2)
White clipping level
Dark clipping level
[PB Mode Y]
Current consumption PB
Dropout compensation period
FM demodulation voltage
FM demodulation sensitivity
FM demodulation linearity
Carrier leakage
Noncorrelation detection level
PB YNR characteristics
LP/EP (1)
PB YNR characteristics
LP/EP (2)
PB YNR characteristics
SP (3)
Playback through gain
Dropout detection (feedback)
level
Nonlinear de-emphasis
characteristics (1)
Nonlinear de-emphasis
characteristics (2)
Double noise canceller
characteristics (1)
Double noise canceller
characteristics (2)
Symbol
Conditions
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
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
GME2
VIN = 50 mVp-p 2 MHz
Measure ratio of levels of T4 and T3, difference
with GEMP
13.1 13.6 14.1
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
GENHS2 Measure the amplitude at T4 when
0.7 1.7 2.7
VIN = 15.8 mVp-p 2 MHz sine wave in edit mode;
compare level with GEMP
LWC
VIN = 500 mVp-p white 100% video
Measure white clipping level at T4
186 193 200
dB
dB
dB
dB
dB
%
LDC VIN = 500 mVp-p white 100% video
Measure dark clipping level at T4
–50 –45 –40 %
ICCP
TDOC
VDEM4
SDEM
LDEM
CL
VCORR
GP-YNR1
GP-YNR2
GP-YNR3
GPB
LDOC
GNLDEEM1
GNLDEEM2
Incoming currents at pins 29 and 24 when
VCC = 5.0 V
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
VIN = 300 mVp-p, f = 4 MHz, output voltage
VIN = 300 mVp-p, f = 2 MHz, VDEM2
VIN = 300 mVp-p, f = 6 MHz, VDEM6
Calculate SDEM = (VDEM2 – VDEM6)/4
LDEM
=
VDEM4 – (VDEM2 + V DEM6)/2
VDEM2 – VDEM6
x 100
VIN = 300 mVp-p, f = 4 MHz
Ratio between 4 MHz component of T1 and
SDEM
VIN = 500 mVp-p video signal (ramp waveform)
VIN = 500 mVp-p noise test signal –30 dB
S/N difference with S6 on/off
VIN = 500 mVp-p noise test signal –30 dB
S/N difference with EDIT on/off; pin 36 low
VIN = 500 mVp-p noise test signal, –30 dB
S6 edit on/off S/N ratio Pin36 low
Apply VIN = 0.5 Vp-p video signal to pin 3, and
determine ratio between pin 28 output level and
input level
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
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
f = 2 MHz, 50 mVp-p
GWNC1 f = 2 MHz, 158 mVp-p
GWNC2 f = 2 MHz, 50 mVp-p
125 155 185 mA
0.6 1.0 ms
0.9 1.05 1.15 V
0.11 0.14 0.17 V/MHz
–3.5 0 +3.5 %
–40 –35 dB
22
2.5
IRE
dB
1.5 dB
1.5 dB
4.5 6.0 7.5 dB
30 40 50 mVp-p
–6.0 –5.0 –4.0 dB
–9.0 –8.0 –7.0 dB
–2.3 –1.8 –1.3 dB
–6.0 –5.0 –4.0 dB
Continued on next page.
No.5472 - 4/13

4페이지










LA7386 전자부품, 판매, 대치품
LA7386
Continued from preceding page.
Parameter
REC AFC pull-in range 2
[PB Mode Chroma]
PB chroma video output level
PB chroma pin 21 output level
PB ACC characteristics 1
PB ACC characteristics 2
PB killer input level
PB killer chroma output level
PB main converter carrier leak
Burst de-emphasis amount
PB XO output level
PB XO oscillation frequency
variation
SLD detection current 1
Symbol
Conditions
min typ max Unit
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)
–6.3 –1.0 kHz
Vop-28
Vop-21
ACCP1
ACCP2
VACK-P
VOACK-P
CLP
GBD
VXO-P
fXO
ISLD1
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
Measure the T21 burst level under the same
conditions as for Vop-28
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
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
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)
Use a spectrum analyzer to measure the T28
chroma output level in the killer state described
previously. Calculate ratio with Vop-28.
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.
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
In PB mode, measure the T18 output level with
an FET probe
In PB mode, measure the frequency at T18...f
fXO = f – 3579545 (Hz)
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
210
170
–0.5
–55
–4.35
480
–7
110
260 310 mVp-p
200 230 mVp-p
+0.5 +0.8 dB
–0.2 dB
–40 dB
–44 –40 dB
–40 –33 dB
–4.6 –4.85 dB
610 750 mVp-p
0 +7 Hz
160 210 µA
ISLD1 = VOS1/1 k
Continued on next page.
No.5472 - 7/13

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