Sanyo LA7672 Specifications

Ordering number : ENN4265A

D2599TH (OT)/O202TS No. 4265-1/6

LA7672

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Color TV Single-Chip Signal Processor for

NTSC Systems (PLL Detection)

Monolithic Linear IC

Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.

Overview

The LA7672 is a single-chip IC for color TVs based on the NTSC system with on-chip circuit for all VIF, SIF, video, chroma and deflection signal processing.

Features

[VIF]

• PLL detection (high video and audio quality)

• High-gain VIF amplifier

• High speed AGC

• On-chip APC time constant switch

[SIF]

• Simultaneous sound IN/OUT

• Video/audio simultaneous muting, or audio-only muting possible

[Audio-visual switch]

• Internal/external audio-visual switch (VCC= 9 V)

Delay line Video external, audio external Switch rating

OFF IN 6.9 to 9.0 V OFF EXT 4.7 to 6.6 V

ON EXT 2.4 to 4.3 V ON IN 0 to 2.1 V

[OSD]

• RGB 3 input

• RGB linear up (– 6 dB input: 2 V to 5 V)

• Fast blanking (B input combined use)

[Chroma]

• On-chip ACC filter, On-chip killer filter, Killer-circuit hysteresis operation

• On-chip carrier filter

[Video]

• Black enhancement

• On-chip delay line

• Wide band width (9 MHz): delay line short

• Duel rank on-chip differentiation circuit also available for soft also

• S input supported (VCR application)

• Variable DC transmission volume available (externally attached circuit adjustment)

[Deflection]

• Adjustment-free horizontal, vertical synchronization

• Duel AFC system with excellent anti-noise characteristics

• External adjustment of vertical synchronization sensitivity

• Vertical size is constant with no-signal

• Highly stable image during playback of copy protected tapes (macro-vision tape)

• High stability against VCR skew distortion

Package Dimensions

unit : mm

3128-DIP52S

46.0

0.48 1.05 1.78

0.75

4.25

15.24

0.25

13.8

0.51min

5.1max

3.8

261

2752

SANYO: DIP52S

[LA7672]

LA7672

No. 4265-2/6

Parameter Symbol Conditions Ratings Unit

Maximum Supply Voltage

V11 max 11 V

V14 max 11 V Maximum Supply Current I30max 16 mA Allowable Power dissipation Pd max Ta ≤ 60°C 1.35 W Operating Temperature Range Topr –10 to +65 °C Storage Temperature Range Tstg –55 to +150 °C

Circuit Current

I44 –6 mA

I6 –3 mA

FBP Input Current

I22 max Peak current 5 mA I21 max Peak current 10 mA

Specifications

Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Recommended Supply Voltage

V11 9 V V14 9 V

Recommended Supply Current I30 13 mA

Operating Voltage Range

V11op 8 to 9.5 V V14op 8 to 9.5 V

Operating Current Range I30op 10 to 16 mA

Operating Conditions at Ta = 25°C

Parameter Symbol Conditions

Ratings

Unit

min typ max

[Circuit Voltage and Current]

Horizontal Supply Voltage V30 V

= 9V, ICC= 13mA 7.3 7.8 8.3 V

Supply Current I11 + 14 V

= 9V, ICC= 13mA, IFAGC 4V 102 120 138 mA

[VIF]

Quiescent Video Output Voltage V44 Quiescent 4.3 4.7 5.1 V Quiescent AFT Output Voltage V47 Quiescent 3.1 4.7 6.1 V Maximum RFAGC Voltage V49H CW = 85dBµ, RFAGCVR = min 7.6 8.0 8.3 V Minimum RFAGC Voltage V49L CW = 85dBµ, RFAGCVR = max 0 0.01 0.3 V

Input Sensitivity Vi

VIF input level for video output at 0.8Vp-p

33 39 45 dBµ

(40% mod).

AGC Range GR

Maximum input (V0 = 0.8Vp-p) - input sensitivity

54 62 dB Maximum Permissible Input Vi max VIF input level for video output at +1dB 97 104 dBµ Video Output Detection V

44 Vi = 80dBµ, AM = 78% mod 1.7 2.0 2.3 Vp-p Differential Gain DG Vi = 80dBµ, AM = 87.5%, video mod 3.0 10 % Differential Phase DP Vi = 80dBµ, AM = 87.5%, video mod 1.0 10 deg

Video S/N S/N

Vi = 80dBµ, 20 log 1.46 (Vp-p)

47 54 dB

noise (Vrms) Synchronization Signal Tip Level V44 TIP CW = 80dBµ 2.1 2.4 2.7 V Frequency Characteristic f

Frequency at video output of –3dB 6.0 9.0 MHz 920 kHz VIF Intermodulation I920 V3.58MHz/V920kHz, Vi = 80dBµ 35 42 dB Maximum AFT Output Voltage V47H CW = 80dBµ, frequency change 8.3 8.7 9.0 V Minimum AFT Output Voltage V47L CW = 80dBµ, frequency change 0.1 0.3 0.8 V AFT Detection Sensitivity Sf CW = 80dBµ, frequency change 45 70 100

mV/kHz

AFT Switch Operation Start Voltage V

AFTSW

Measuring with sweep signal 0.5 1.0 V Black Noise Threshold Level V

BTH

Measuring with sweep signal 1.1 1.4 1.7 V APC Pull-in Range (U)2 f

PU-2

CW = 80dBµ, fP= 53MHz to 64MHz 0.8 1.7 MHz APC Pull-in Range (L)2 f

PL-2

CW = 80dBµ, fP= 53MHz to 64MHz –2 –1 MHz

VCO Maximum Variable Range

∆f

Quiescent 0.9 1.7 MHz

∆f

Quiescent –2 –1 MHz VCO Control Sensitivity b Quiescent 1.5 3.0 5.5

kHz/mV

Operating Characteristics at Ta = 25°C, VCC= V11 = V14 = 9 V, ICC= I30 = 13 mA

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