
Ordering number : EN4373A
93098HA (OT) / 63094TH (OT) B8-0558, 0391/N2792TS No. 4373-1/5
LA7860, 7860M
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Deflection IC Supports Multisynch Display
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 LA7860, 7860M display deflection integrated circuit
supports multisynch and high-definition displays.
Implemented through proprietary Sanyo circuit
technology, it offers unsurpassed low-noise performance.
Its outstanding characteristic is the simplified processing it
offers for screen settling in response to fluctuations in
horizontal scan frequency, which has required numerous
components and complex control procedures in the past.
This has been made possible through a combination of the
conventional phase shift function (H. SHIFT) with a new
horizontal oscillation frequency dependent phase shift
function (S. GAIN) implemented internally in the IC.
Control pins for various other internal functions support
control at 0 to 2.5V dc, making it possible to simply
control horizontal oscillation frequency and horizontal and
vertical image phase directly with a microcomputer. When
used in conjunction with an interface such as a DAC, it
will also support system bus applications.
Features
• Supports multisynch displays
• DC control
• Low noise
• Supports polar input signals
• TTL output
Functions
• Horizontal frequency independent screen phase shift (H.
SHIFT)
• Horizontal frequency dependent screen phase shift
(S. GAIN)
• Vertical screen phase shift (V. SHIFT)
• Horizontal oscillation frequency control (H. OSC)
• Horizontal synchronization and detection (H. LOCK)
• Vertical blanking output (V. BLK)

LA7860, 7860M
No. 4373-2/4
Specifications
Maximum Ratings at Ta = 25°C
Note: 1. TC ≤ 100°C, Pd max = 0.95 W (The case temperature is the temperature of pin 23.)
2. Measured when mounted on a 100
× 70 × 1.15 mm glass epoxy printed circuit board.
Recommended Operating Conditions at Ta = 25 °C
Where Th is one horizontal cycle, and Tdelf is 20-pin operation period.
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
21
max 14 V
Maximum supply current I
14
max 75 mA
I
16
si max 10 mA
Maximum rush current I
24
si max 10 mA
I
25
si max 2 mA
FBP minimum input voltage V
IN18
min –5 V
Allowable power dissipation Pd max
[LA7860] 0.95 W
*1
Ta ≤ 70°C [LA7860M] 1.1 W
*2
Operating temperature Topr –10 to +70 °C
Storage temperature Tstg –55 to +150 °C
Parameter Symbol Conditions Ratings unit
Recommended supply voltage V
21
12 V
Recommended supply current I
14
60 mA
Operating supply voltage V
21
op 10.5 to 13.5 V
Operating supply current I
14
op 55 to 65 mA
Recommended input voltage V
1
2 Vp-p
V
30
2 Vp-p
Operating input voltage V
1
op 1.0 to 3.0 Vp-p
V
30
op 1.0 to 3.0 Vp-p
Maximum horizontal input width V
IN1
max 3/20 Th
Maximum vertical input width V
IN30
max 3 ms
Maximum FBP input width V
IN18
max 1/5 + Tdelf Th
Package Dimensions
unit: mm
3061-DIP30S
3073A-MFP30SD
[LA7860M]
[LA7860]
SANYO: MFP30SD
SANYO: DIP30S

LA7860, 7860M
No. 4373-3/4
Operating Characteristics at Ta = 25 °C, V
CC21
= 12 V, I
CC14
= 60 mA
Parameter Symbol Conditions
Ratings
Unit
min typ max
V
CC
21 current dissipation I
21
4.2 5.6 7.0 mA
V
CC
14 supply voltage V
14
8.5 9.0 9.5 V
Maximum vertical pull-in frequency Fv max 180 210 240 Hz
Minimum vertical pull-in frequency Fv min 30.0 37.5 45.0 Hz
Maximum vertical blanking width Wb max 740 875 1010 µs
Minimum vertical blanking width Wb min 340 400 460 µs
Blanking pulse output high voltage Vbh 4.5 5 5.5 V
Blanking pulse output low voltage VbI 0.3 V
Vertical blanking output current I
25
so 1.6 2 mA
Vertical output pulse width Wvd 255 300 345 µs
Vertical output maximum shift Pv max 400 475 550 µs
Vertical output delay Dv min 1 µs
Vertical output voltage high Vdvh 4.5 5.0 5.5 V
Vertical output voltage low VdvI 0.3 V
Vertical output current I
24
so 1.7 2.2 mA
Vertical oscillation start voltage Fvst 5.0 6.0 V
Horizontal oscillation start voltage F
Hst 5.0 6.0 V
Minimum horizontal oscillation F
H min
25.7 27.1 28.5 kHz
frequency
Maximum horizontal oscillation F
H max
89.5 94.6 99.7 kHz
frequency
Horizontal frequency pull-in range HpuII 3.5 4.1 %
AFC control current Iafc 500 630 760 µA
Horizontal output high voltage Vhdh 4.5 5.0 5.5 V
Horizontal output low voltage VhdI 0.3 V
Minimum horizontal phase Ph min Tfbp = 2.6 µs –2.0 –1.4 –0.8 µs
Maximum horizontal phase Ph max Tfbp = 2.6 µs 3.5 4.5 5.5 µs
Frequency dependent maximum phase Pf max Tfbp = 2.6 µs 23 26.5 30 %
Frequency dependent minimum phase Pf min Tfbp = 2.6 µs –3 0 3 %
Minimum horizontal output pulse width Wh min 21 24 27 %
Maximum horizontal output pulse width Wh max 64 67 70 %
Horizontal output current I
16
so 1.7 2.3 mA
Synchronized output voltage Vco 4.5 5 5.5 V
Asynchronized output voltage Vnco 0.3 V
FBP input voltage Vfbp 1.2 1.5 1.8 V
EN input voltage Ven 2.0 2.5 3.0 V

LA7860, 7860M
No. 4373-4/5
Equivalent Circuit Block Diagram and Peripheral Circuit
Unit (resistance: Ω, capacitance: F)

LA7860, 7860M
PS No. 4373-5/5
This catalog provides information as of September, 1998. Specifications and information herein are
subject to change without notice.
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
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herein are controlled under any of applicable local export control laws and regulations, such products must
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or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
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
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