Ordering number : ENA0325
Monolithic Linear IC
LA75600VA
Overview
IF Signal Processing (VIF/SIF) IC
for use in TV/VCR Applications
The LA75600VA is a NTSC intercarrier support VIF/SIF signal-processing IC that makes the minimum number of
adjustments possible. The VIF block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus
simplifying the adjustment steps in the manufacturing process. PLL detection is adopted in the FM detector to support
multi-format audio detection. A 5V power-supply voltage is used to match that used in most multimedia systems. In
addition,these ICs also include a buzz canceller to suppress Nyquist buzz and provide high audio quality.
Functions
•
VIF Block :VIF Amplifier, Buzz Canceller, PLL Detector, IF AGC, RF AGC, AFT, Equalizer Amplifier
•
SIF Block :Limiter Amplifier, PLL FM detector
Specitications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum supply voltage
Circuit voltage
Circuit current
Symbol
VCC max
V13, V17
I6
I10
Allowable dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
Ta≤70°C *
Conditions
Ratings
6
VCC
-3
-10
640
-20 to +70
-55 to +150
Unit
V
V
mA
mA
W
°C
°C
* Mounted on a board:114.3×76.1×1.6mm
3
glass epoxy board.
Recommended Operating Conditions
at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage
Symbol
VCC
VCC op
Conditions
Ratings
5
4.5 to 5.5
Unit
V
V
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before usingany SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
00000 / 60506 MS OT 20060125-S00004 No.A0325-1/16
LA75600VA
Electrical Characteristics
at Ta = 25°C, VCC = 5V, fp = 45.75MHz
Parameter
[VIF block]
Circuit current
Maximum RF AGC voltage
Minimum RF AGC voltage
Input sensitivity
AGC range
Maximum allowable input
No-signal video output voltage
Sync. signal tip voltage
Video output level
Black noise threshold voltage
Black noise clamp voltage
Video S/N
C-S beat
Frequency characteristics
Differential gain
Differential phase
No-signal AFT voltage
Maximum AFT voltage
Minimum AFT voltage
AFT detection sensitivity
VIF input resistance
VIF input capacitance
APC pull-in range (U)
APC pull-in range (L)
AFT tolerance frequency 1
VCO1 maximum variable range (U)
VCO1 maximum variable range (L)
VCO control sensitivity
RF AGC input level
[SIF block]
Limiting sensitivity
FM detection output voltage
AMR
Distortion factor
SIF S/N
4.5MHz output level
Vli(lim)
VO(FM)
AMR
THD
S/N(FM)
Vsout
SIF IN 80dBµV
4.5MHz
±
15kHz
4.5MHz
±
25kHz
S1
S2
S3
S4
S5
S6
59
87
39
767
50
45
1000
60
0.5
64
94
101
1.0
51
1280
dBµV
mVrms
dB
%
dB
dBµV
I5
V14H
V14L
Vi
GR
Vi max
V6
V6tip
VO
VBTH
VBCL
S/N
IC-S
fc
DG
DP
V13
V13H
V13L
Sf
Ri
Ci
fpu
fpl
∆fa1
dfu
dfl
B
ViRFAGC
R = 5.1kΩ
45.75MHz
45.75MHz
6MHz
S1 = OFF
V1
V2
V3
V4
V5
V6
V7
V8
V9
V10
V11
V12
V13
V13
V15
V16
V17
V18
V19
V20
V21
V22
V23
V24
V25
V26
V27
V28
V29
1.3
87
-150
1.0
1.3
2.0
4.0
0
19
32
51
95
3.1
0.8
1.7
0.3
1.3
48
38
-3
35
VCC-0.5
42
VCC
0
38
56
100
3.4
1.1
2.0
0.5
1.6
52
43
-1.5
3.0
3
2.5
4.4
0.18
29
1.5
3
2.0
-2.0
0
1.5
-2.0
2.7
94
-1.5
5.4
101
-1.4
+150
6.5
5
3.0
5.0
1.0
38
3.7
1.4
2.3
0.7
1.9
0.5
44
52
mA
V
V
dBµV
dB
dBµV
V
V
Vp-p
V
V
dB
dB
dB
%
deg
V
V
V
mV/kHz
kΩ
pF
MHz
MHz
kHz
MHz
MHz
kHz/mV
dBµV
Symbol
Conditions
No.
min
Ratings
typ
max
Unit
*:If the dynamic range of the FM detection output needs to be widened, connect a resistor and a capacitor in series between pin 23 and GND for level
adjustment.
*:The resistor between pin10 and GND must be 470Ω or more.
No.A0325-2/17
LA75600VA
Package Dimensions
unit : mm
3287
6.5
24
13
4.4
6.4
1
0.5
(0.5)
0.22
12
0.15
SANYO : SSOP24(225mil)
Pin Assignment
0.1 (1.3)
1.5max
0.5
No.A0325-3/17
LA75600VA
Block Diagram and AC Characteristics Test Circuit
Test Circuit
Input impedance test circuit (VIF, 1st SIF input impedance)
No.A0325-4/17
LA75600VA
Test Conditions
V1. Circuit current
……
[I5]
(1) Internal AGC
(2) Input a 45.75MHz 10mVrms continuous wave to the VIF input pin.
(3) RF AGC Vr MAX
(4) Connect an ammeter to the VCC and measure the incoming current.
V2. V3. Maximum RF AGC voltage, Minimum RF AGC voltage
……
[V14H, V14L]
(1) Internal AGC
(2) Input a 45.75MHz 10mVrms continuous wave to the VIF input pin.
(3) Adjust the RF AGC Vr (resistance value max.) and measure the maximum RF AGC voltage. (F)
(4) Adjust the RF AGC Vr (resistance value min.) and measure the minimum RF AGC voltage. (F)
V4. Input sensitivity
……
[Vi]
(1) Internal AGC
(2) fp = 45.75MHz 15kHz 78% AM (VIF input)
(3) Turn off the S1 and put 100kΩ through.
(4) VIF input level at which the 400Hz detection output level at test point A becomes 0.64Vp-p.
V5. AGC range
……
[GR]
(1) Apply the VCC voltage to the external AGC, IF AGC (pin 17).
(2) In the same manner under the same conditions as for V4 (input sensitivity), measure the VIF input level at which
the detection output level becomes 0.64Vp-p
−
Vil.
(3)
V6. Maximum allowable input
……
[Vi max]
(1) Internal AGC
(2) fp = 45.75MHz 15kHz 78% AM (VIF input)
(3) VIF input level at which the detection output level at test point A becomes video output (VO)
±1dB.
V7. No-signal video output voltage
……
[V6]
(1) Apply the VCC voltage to the external AGC, IF AGC (pin 17).
(2) Measure the DC voltage at the VIDEO output (A).
V8. Sync. signal tip voltage
……
[V6tip]
(1) Internal AGC
(2) Input a 45.75MHz 10mVrms continuous wave to the VIF input pin.
(3) Measure the DC voltage at the VIDEO output (A).
V9. Video output level
……
[VO]
(1) Internal AGC
(2) fp = 45.75MHz 15kHz 78% AM Vi = 10mVrms (VIF input)
(3) Measure the peak value of the detection output level at test point A. (Vp-p)
No.A0325-5/17
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