Monolithic Linear LA7337 SECAM-Format Chroma Signal-Processi

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Monolithic Linear LA7337 SECAM-Format Chroma Signal-Processi

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Ordering number EN5288A
Monolithic Linear
LA7337
SECAM-Format Chroma Signal-Processing Circuit
Overview
LA7337 that implements SECAM-format signal processing single chip. incorporates band-pass filters SECAM discrimination circuit chip features automatic adjustment bell filter reduced number external components adjustmentfree circuit operation.
Package Dimensions
unit:
3063-DIP28S
[LA7337]
Features
required filters, except bell filter, incorporated chip. Automatic adjustment bell filter parameter Built-in SECAM discrimination circuit
Functions
1.1-MHz band-pass filters, limiter, playback mode) Divide-by-four circuit, frequency multiplier circuit, 2.2-MHz band-pass filter Bell filter automatic adjustment circuit, SECAM discrimination circuit Sync gate
SANYO: DIP28S
Specifications
Absolute Maximum Ratings 25°C
Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol Topr Tstg 70°C Conditions Ratings +150 Unit
Operating Conditions 25°C
Parameter Recommended supply voltage Operating supply voltage range Symbol Conditions Ratings Unit
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
13097 (OT) 5288-1/7
LA7337 Operating Characteristics 25°C,
Parameter Record mode current drain 4.3-MHz band-pass filter characteristics 4.3-MHz band-pass filter characteristics Symbol ICCR VF4C GF4L1 Conditions composite sync., color signal composite sync. sine wave (200 mVp-p, 4.286 MHz) above, except sine wave (200 mVp-p, MHz), taking VF4C reference above, except sine wave (200 mVp-p, MHz), taking VF4C reference above, except sine wave (200 mVp-p, MHz), taking VF4C reference SW21B sine wave (200 mVp-p, MHz), composite sync. above, except SW21B sine wave (200 mVp-p, FBLR1), composite sync. above, except sine wave (200 mVp-p, MHz), taking VBLRC reference above, except sine wave (200 mVp-p, MHz), taking VBLRC reference SECAM color signal (variable level), SW21B composite sync. sine wave (200 mVp-p, MHz), SW21A SW21B composite sync. above, except sine wave (200 mVp-p, FEQR1 SW21A SW21B composite sync. above, except sine wave (200 mVp-p, MHz), taking VEQRC reference above, except sine wave (200 mVp-p, MHz), taking VEQRC reference sine wave (200 mVp-p, MHz), SW21B composite sync. above, except measure component signal. Taking reference dB). above, except measure component signal. Taking reference dB). composite sync., sine wave mVp-p, 1.0715 MHz) SW8B composite sync., sine wave mVp-p, 1.0715 MHz) above, except sine wave (100 mVp-p, 1.0715 MHz) Taking VAGC reference dB). above, except sine wave mVp-p, 1.0715 MHz) Taking VAGC reference dB). SW14 V14R, sine wave mVp-p, kHz), composite sync., taking VAGC reference dB). above, except sine wave mVp-p, MHz) Taking VAGC reference dB). above, except sine wave mVp-p, MHz) Taking VAGC reference dB). 4.243 4.493 Ratings Unit mVp-p
4.3-MHz band-pass filter characteristics
GF4L2
4.3-MHz band-pass filter characteristics
GF4H
Record mode bell filter center frequency Record mode bell filter center frequency Record mode bell filter characteristics
FBLR1 FBLR2 VBLRC
4.286 4.536
4.329 4.579
mVp-p
Record mode bell filter characteristics
GBLRL
Record mode bell filter characteristics
GBLRH
Record mode killer operating level
GKLR
Record equalization center frequency Record equalization center frequency Record equalization characteristics Record equalization characteristics Record equalization characteristics Record chrominance signal output level Record chrominance signal output unnecessary spectrum Record chrominance signal output unnecessary spectrum Playback mode current drain
FEQR1 FEQR2 VEQRC GEQRL GEQRH
1.0608 1.0788
1.0715 1.0895
1.0822 1.1002
mVp-p mVp-p
GSR1
GSR2
ICCP
control characteristics
VAGC
mVp-p
control characteristics
GAGC1
control characteristics
GAGC2
1.1-MHz band-pass filter characteristics
GF1L
1.1-MHz band-pass filter characteristics
GF1H1
1.1-MHz band-pass filter characteristics
GF1H2
Continued next page.
5288-2/7
LA7337
Continued from preceding page.
Parameter Symbol Conditions SW8B SW14 V14R, sine wave mVp-p, MHz), composite sync. above, except SW8B SW14 V14R, sine wave mVp-p, FEQP1), composite sync. above, except sine wave mVp-p, kHz), taking VEQP reference dB). above, except sine wave mVp-p, MHz), taking VEQP reference dB). SW8A SW8B composite sync., sine wave (200 mVp-p, MHz), above, except SW8A SW8B sine wave (200 mVp-p, FBLP 1/4), composite sync. above, except sine wave (200 mVp-p, kHz), taking VBLPC reference dB). above, except sine wave (200 mVp-p, MHz), taking VBLPC reference dB). sine wave (200 mVp-p, MHz), SW8B composite sync. above, except measure component signal. Taking reference dB). above, except measure component signal. Taking reference dB). 4.433619 sine wave (200 mVp-p, 4.286 MHz), SW21B composite sync. above, except above -0.3 SW8B sine wave mVp-p, 1.0715 MHz), composite sync. above SW21B composite sync. above SW25 SW21B composite sync., SECAM color signal above, except color signal Ratings Unit
Playback equalization center frequency
FEQP1
1.0608
1.0715
1.0822
Playback equalization center frequency
FEQP2 VEQPC
1.0788
1.0895
1.1002
Playback equalization characteristics
mVp-p
Playback equalization characteristics
GEQPL
Playback equalization characteristics
GEQPH
Playback bell center frequency
FBLP1
4.243
4.286
4.329
Playback bell center frequency
FBLP2 VBLPC
4.493
4.536
4.579
Playback bell characteristics
mVp-p
Playback bell characteristics
GBLPL
Playback bell characteristics
GBLPH
Playback chrominance signal output level
mVp-p
Playback chrominance signal output unnecessary spectrum Playback chrominance signal output unnecessary spectrum input level Synchronizing signal input threshold level Record mode sync gate start time (muting off) Record mode sync gate start time (muting Record mode sync gate release time Record mode mute setting resistance Playback mode sync gate start time Playback mode sync gate release time start time amplitude SECAM discriminator output resistance Record mode SECAM discriminator characteristics Record mode SECAM discriminator characteristics
GSP1
GSP2 VCLK VTHS TRGB TRGBM TRGE VTSP2 TPGB TPGE TBGB TBGW VSCMR1
+0.2
+0.7
mVp-p
VSCMR2
Continued next page.
5288-3/7
LA7337
Continued from preceding page.
Parameter Playback mode phase detector output difference voltage Playback mode phase detector output difference voltage Playback mode SECAM discriminator characteristics Playback mode SECAM discriminator characteristics SECAM discriminator comparator threshold voltage Record/playback control threshold voltage Forced SECAM mode threshold voltage Symbol Conditions SW8B composite sync., sine wave mVp-p, 1.0625/1.1016 MHz) above, except sine wave mVp-p, kHz) SW23 SW24 SW23 SW24 SW25 SW25 composite sync., sine wave (200 mVp-p, 4.286 MHz) SW25 composite sync., sine wave (200 mVp-p, 4.286 MHz) Ratings Unit
VSCPD1 VSCPD2 VSCMP1 VSCMP2 VTCOMP VTRP VTHSM
Forced mute mode threshold voltage Reference voltage
VTHMM VREG
Standard Input Signal Levels
REC-IN (pin PB-IN (pin mVp-p component mVp-p
Internal filter group delay times (reference values)
BPFA BPFB (PB) (REC)
[Record/playback mode settings] record mode high playback mode [Bell filter offset adjustment] Increasing voltage increases 1.1-MHz bell filter center frequency (f0). Increasing voltage increases 4.3-MHz bell filter center frequency (f0). [Test mode settings] enters test mode outputs behave follows this mode. 4.43-MHz output appears (However, note that load about required between this VCC.) 1.1-MHz band-pass filter output appears. 4.3-MHz band-pass filter output appears. (used SECAM discrimination, playback AGC, record killer) monitored. [Muting control table]
Voltage applied higher Open lower Output signal mode (pins Forced SECAM AUTO (Uses output internal discriminator) Forced mute mode
5288-4/7
LA7337 Block Diagram
5288-5/7
LA7337 Test Circuit Diagram
Note: probe when measuring T21, BGP.
5288-6/7
LA7337 Test Circuit Diagram
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information January, 1997. Specifications information herein subject change without notice. 5288-7/7

Monolithic Linear LA7337 SECAM-Format Chroma Signal-Processi

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