Ordering number : ENN7704
Monolithic Linear IC
LA7567EV-A
TV and VCR VIF/SIF IF Signal-Processing Circuit with
PAL/NTSC Multi-Format Audio Support
Overview
The LA7567EV-A is PAL/NTSC multi-format audio
VIF/SIF IF ICs that adopt a semi-adjustment-free system.
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 built-in SIF
converter is included to simplify multi-format system
designs. A 5-V 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. The LA7567EV-A feature
improvements over the LA7567N and LA7567NM in the
audio and video signal-to-noise ratios and the video signal
amplitude.
Package Dimensions
unit: mm
3175B-SSOP24
[LA7567EV-A]
7.8
24
5.6
1
1.5max
(0.33)
0.65
0.22
(1.3)
0.15
SANYO: SSOP24 (275mil)
Functions
[VIF]
• VIF amplifier • PLL detector • BNC • RF AGC
• EQ amplifier • AFT • IF AGC • Buzz canceller
[First SIF]
• First SIF • First SIF detector • AGC
[SIF]
• Multi-format SIF converter • Limiter amplifier
• PLL FM detector
Features
• Both AFT and SIF inductors built in, thus making
adjustment of external inductance unnecessary.
• A PAL/NTSC multi-format audio system can be
constructed easily.
• Built-in buzz canceller for excellent audio performance.
• V
CC
= 5 V, low power dissipation (250 mW)
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
12804TN (OT) No. 7704-1/15
0.1
0.5
7.6
LA7567EV-A
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Maximum supply voltage
Circuit voltage
Symbol
V
CC
max
V13, V17
I6
Circuit current
I10
I24
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
Ta
≤
70°C,
*:Mounted
on a PCB
Conditions
Ratings
6
V
CC
–3
–10
–2
400
–20 to +70
–55 to +150
Unit
V
V
mA
mA
mA
mW
°C
°C
Note:*Stipulated PCB: 114.3
×
76.1
×
1.6 mm
3
, glass epoxy printed circuit board.
Operating Conditions
at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Symbol
V
CC
V
CC
op
Conditions
Ratings
5
4.5 to 5.5
Unit
V
V
Electrical Characteristics
at Ta = 25°C, V
CC
= 5 V, fp = 38.9 MHz
Parameter
[VIF Block]
Circuit current
Maximum RF AGC voltage
Minimum RF AGC voltage
Input sensitivity
AGC range
Maximum allowable input
No-signal state video output voltage
Synchronizing signal tip voltage
Video output level
Black noise threshold voltage
Black noise clamp voltage
Video signal-to-noise ratio
C-S beat
Frequency characteristics
Differential gain
Differential phase
No-signal state 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 variability range (U)
VCO1 maximum variability range (L)
VCO control sensitivity
I5
V14H
V14L
V
IN
G
R
V
IN
max
V6
V6 tip
V
O
V
BTH
V
BCL
S/N
IC-S
f
C
DG
DP
V13
V13H
V13L
Sf
Ri
Ci
f
PU
f
PL
dfa1
dfu
dfl
B
1.0
–450
1.0
38.9 MHz
38.9 MHz
0.7
2.0
4.0
0
17
6 MHz
S1 = OFF
33
58
95
3.0
1.05
1.46
0.5
1.6
48
38
–3.0
40.8
V
CC
– 0.5
48.0
V
CC
0
39
63
100
3.3
1.35
1.7
0.8
1.9
52
43
–1.5
3.0
3
2.5
4.4
0.18
24
1.5
3
1.5
–1.5
0
1.5
–1.5
2.0
–1.0
4.0
–0.9
+50
6.5
5
3.0
5.0
1.00
32
3.6
1.64
1.94
1.1
2.2
0.5
45
55.2
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
Symbol
Conditions
Ratings
min
typ
max
Unit
Continued on next page.
No. 7704-2/15
LA7567EV-A
Continued from preceding page.
Parameter
[First SIF Block]
Conversion gain
5.5 MHz output level
First SIF maximum input
First SIF input resistance
First SIF input capacitance
[SIF Block]
Limiting sensitivity
Vli (lim)
6.5 MHz ±50 kHz
FM detector output voltage
V
O
(FM)
6.0 MHz ±50 kHz
5.5 MHz ±50 kHz
4.5 MHz ±25 kHz
AMR rejection ratio
AMR
6.5 MHz ±50 kHz
Total harmonic distortion
THD
6.0 MHz ±50 kHz
5.5 MHz ±50 kHz
4.5 MHz ±25 kHz
SIF S/N
[SIF Converter]
Conversion gain
Maximum output level
Carrier suppression ratio
Oscillator level
Oscillator leakage
Oscillator stopped current
VG (SIF)
V max
VGR (5.5)
V
OSC
OSCleak
I
4
8
103
15
35
14
11
109
21
70
25
300
14
115
dB
dBµV
dB
mVp-p
dB
µA
S/N (FM)
57
42
630
600
570
220
50
48
790
750
710
280
60
0.3
0.3
0.3
0.3
62
0.8
0.8
0.8
0.8
dB
%
54
950
900
855
340
dB
mVrms
dBµV
VG
S
O
S
IN
max
R
IN
(SIF)
C
IN
(SIF)
33.4 MHz
33.4 MHz
22
32
50
28
70
100
2
3
32
110
dB
mVrms
mVrms
kΩ
pF
Symbol
Conditions
Ratings
min
typ
max
Unit
Note:
*The
FM detector output level can be reduced and the FM dynamic range can be increased by inserting a resistor and a capacitor in series between
pin 23 and ground.
Pin Assignment
2nd SIF INPUT
BIAS FILTER
MIX OUT
CER.OSC
VCC
VIDEO OUT
EQ FILTER
EQ INPUT
APC FILTER
1
2
3
4
5
6
24 FM DET OUT
23 FM FILTER
22 1st SIF OUT
(NICAM OUT)
21 RF AGC VR
20 GND
19 VIF IN
Allowable power dissipation, Pd max — mW
600
Pd max — Ta
500
Mounted on a circuit board
(114.3
×
76.1
×
1.6mm, glass epoxy)
400
300
LA7567EV-A
7
8
9
18 VIF IN
17 IF AGC FILTER
16 1st SIF AGC FILTER
15 1st SIF INPUT
14 RF AGC OUT
13 AFT OUT
200
100
0
–20
0
20
40
60
70
80
100
VIDEO DET OUT 10
VCO COIL 11
VCO COIL 12
Ambient temperature, Ta —
°C
Top view
A12027
No. 7704-3/15
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