ENA0654 [SANYO]
Monolithic Linear IC IF Signal Processing (VIF+SIF) IC that Supports the PAL Video Standard for TV Sets and VCRs; 单片线性IC中频信号处理（ VIF + SIF） IC ，支持PAL视频标准的电视机和录像机
| 型号： | ENA0654 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Monolithic Linear IC IF Signal Processing (VIF+SIF) IC that Supports the PAL Video Standard for TV Sets and VCRs |
| 文件： | 总12页 (文件大小：135K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA0654
Monolithic Linear IC
IF Signal Processing (VIF+SIF) IC
that Supports the PAL Video
Standard for TV Sets and VCRs
LA75520KVA
Overview
The LA75520KVA is a fully adjustment-free VIF + SIF signal processing IC for TV sets and VTRs that supports the PAL
video standard. It supports 38.0MHz, 38.9MHz, and 39.5MHz as the IF frequencies, as well as PAL sound multi-system
(M/N, B/G, I and D/K), and contains an on-chip sound carrier trap. The IC employs a 4MHz frequency (which can be
switched to 4.43MHz) as the reference frequency of the adjustment free circuit, and controls the VCO, AFT, and sound
filter using an external input signal.
Features
• Internal VCO adjustment free circuit eliminating the need for an external VCO coil.
• Internal sound carrier trap enables easy configuration of PAL sound multi-system at low cost.
• Considerably reduces the number of required peripheral parts.
• Use of digital AFT eliminates a problem of AFT tolerance.
• Package: SSOP24 (225mil)
Functions
• VIF amplifier
• EQAMP
• Adjustment-free VCO and PLL detector circuit
• Digital AFT circuit
• RF AGC
• Internal sound carrier trap
• First SIF detector circuit
• PLL-FM detector circuit
• Buzz canceller
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
80807 MS PC 20061214-S00006 No.A0654-1/12
LA75520KVA
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
Conditions
Ratings
Unit
V
V
6
640
CC
Pd max
Topr
Ta ≤ 70°C, Mounted on a substrate.*
mW
°C
-20 to +70
-55 to +150
Tstg
°C
* Mounted on a substrate : 76.1×114.3×1.6mm3, glass epoxy board.
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended supply voltage
Operating supply voltage
V
5.0
CC
V
op
4.5 to 5.5
V
CC
Electrical Characteristics at Ta = 25°C, V
= 5.0V, fp = 38.9MHz
CC
Ratings
typ
Parameter
Symbol
Conditions
No.
Unit
min
max
VIF block
Circuit current
I
V1
V2
75
4.0
0.0
26
85
95
5.0
1.0
38
mA
V
4
Max RF AGC voltage
Min RF AGC voltage
Input sensitivity
V
H
L
4.5
0.5
32
14
V
V3
V
14
V
Video out 2
V4
dBμV
dB
i
AGC range
GR
V5
58
63
Max allowable input
Quiescent video output voltage
Sync signal edge voltage
Video output level
Black noise threshold voltage
Black noise clamp voltage
Video S/N
V max
i
V6
95
100
2.5
1.0
1.2
0.8
1.5
50
dBμV
V
V
5
V7
2.2
0.8
1.0
0.5
1.2
46
2.8
1.2
1.4
1.1
1.8
V
tip
V8
V
5
V
V9
Vp-p
V
O
V
V10
V11
V12
V13
V14
V15
V16
V17
V18
V19
V20
V21
V22
V23
V24
V25
V26
V27
V28
V29
V30
V31
V32
V33
V34
V35
V36
BTH
BCL
V
V
S/N
IC-S
DG
B/G
P/S = 10dB
= 80dBμ
dB
C-S best
38
43
dB
Differential gain
V
3
6.5
5
%
IN
Differential phase
Quiescent AFT voltage
Max AFT voltage
DP
3
deg
V
V
15pin to V
CC
2.0
4
2.5
4.5
0.5
12.5
2.4
-2.4
6
3.0
5
12
V
H
LOAD 22kΩ/22kΩ
LOAD 22kΩ/22kΩ
LOAD 22kΩ/22kΩ
V
12
Min AFT voltage
V
L
0
1
V
12
AFT sensitivity
SF
8.5
2.0
16.5
mV/kHz
MHz
MHz
kHz/mV
kΩ
pF
APC pull-in range (U)
APC pull-in range (L)
VCO control sensitivity
VIF input resistance
VIF input capacity
N trap1 (4.5M)
Fpu
Fpl
β
-2.0
12
1.5
6
3
R
C
38.9MHz
38.9MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
wrt 1MHz
1.0
3
i
i
NT1
NT2
-30
-19
-27
-20
-25
-15
-25
30
-35
-24
-32
-25
-30
-20
-30
80
dB
N trap2 (4.8M)
dB
BG trap1 (5.5M)
BT1
dB
BG trap2 (5.85M)
BT2
dB
I trap1 (6.0M)
IT1
dB
I trap2 (6.55M)
IT2
dB
DK trap1 (6.5M)
DT1
dB
Group delay 1 NTSC (3.0M)
Group delay 1-1 NTSC (3.5M)
Group delay 2 BG (4M)
Group delay 2-1 BG (4.4M)
Group delay 3 I (4M)
NGD1
NGD1-1
BGD2
BGD2-1
IGD3
145
290
210
280
130
ns
110
50
200
130
200
80
ns
ns
120
0
ns
ns
Continued on next page.
No.A0654-2/12
LA75520KVA
Continued from preceding page.
Ratings
typ
Parameter
Symbol
Conditions
No.
Unit
min
max
160
Group delay 3-1 I (4.4M)
Group delay 4 DK (4M)
Group delay 4-1 DK (4.4M)
Video f characteristics MN1
Video f characteristics MN2
Video f characteristics MN3
Video f characteristics BG1
Video f characteristics BG2
Video f characteristics BG3
Video f characteristics I1
Video f characteristics I2
Video f characteristics I3
Video f characteristics DK1
Video f characteristics DK2
Video f characteristics DK3
Group delay 2-2 BG shift (4M)
Group delay 2-3 BG shift (4.4M)
1st SIF Block
IGD3-1
DGD4
wrt 1MHz
V37
V38
V39
V40
V41
V42
V43
V44
V45
V46
V47
V48
V49
V50
V51
V52
V53
80
10
30
120
ns
ns
wrt 1MHz
30
60
50
90
DGD4-1
VFMN1
VFMN2
VFMN3
VFBG1
VFBG2
VFBG3
VFI1
wrt 1MHz
ns
M/N 1 to 2MHz
M/N 2 to 3MHz
M/N 3.58MHz
B/G 1 to 3MHz
B/G 3 to 4MHz
B/G 4.43MHz
I 1 to 3MHz
I 3 to 4MHz
I 4.43MHz
-1.0
-1.0
-3.0
-1.0
-1.5
-2.5
-1.0
-1.0
-1.5
-1.0
-1.0
-1.5
50
0.0
0.0
-1.5
0.0
0.0
-1.0
0.0
0.0
0.0
0.0
0.0
0.0
100
180
1.0
1.0
0.0
1.5
1.5
0.5
1.0
1.5
1.5
1.0
1.5
1.5
150
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
VFI2
VFI3
VFDK1
VFDK2
VFDK3
BGD2-2
BGD2-3
D/K 1 to 3MHz
D/K 3 to 4MHz
D/K 4.43MHz
wrt 1MHz
wrt 1MHz
110
ns
SIF carrier output level 1
SIF carrier output level 2
1st SIF max input
So1
So2
V = 1mV
i
F1
F2
F3
F4
F5
21
21
43
43
120
2
86
86
mVrms
mVrms
dBμV
kΩ
V = 10mV
i
Si max
Ris
110
1st SIF input resistance
1st SIF input capacity
33.4MHz
33.4MHz
2.4
6
Cis
3
pF
SIF Block
Limiting sensitivity (SPLIT)
Limiting sensitivity (INTER)
FM detection output voltage
AM removal ratio
V (lim) (SP)
P = 80dBμ CW
S1
S2
S3
S4
S5
S6
S7
S8
S9
20
29
25
35
560
60
0.3
60
6
30
41
dBμV
dB
i
V (lim) (IN)
P = 80dBμ P/S
i
V
(FM)
f = 5.5MHz, ΔF = 30kHz
390
50
730
mVrms
dB
O
AMR
THD
Distortion factor
0.8
%
FM detection output S/N
PAL/NT audio voltage gain difference
PAL De-emphasis
S/N (FM)
GD
P = 80dBμ CW
55
dB
dB
Pdeem
Ndeem
-3
dB
NT De-emphasis
-3
dB
Control Block
SIF system SW threshold voltage A/B
38MHz/38.9MHz threshold voltage
38.9MHz/39.5MHz threshold voltage
Inter-carrier system
V7_9th
V10th1
V10th2
V13th
C1
C2
C3
C4
C5
2.2
0.7
3.7
2.5
1.0
4.0
2.8
1.3
4.3
0.3
1.3
V
V
V
V
V
AFT mute level/SIF trap shift
threshold voltage 1
V15th1
0.7
2.2
3.7
1.0
2.5
4.0
AFT mute level/SIF trap shift
threshold voltage 2
V15th2
V15th3
C6
C7
2.8
4.3
V
V
AFT mute level/SIF trap shift
threshold voltage 3
Others
Ref clock input level
Reflev
R11
4.0MHz
O1
O2
83
90
95
dBμV
kΩ
Reference frequency SW threshold
resistance
150
270
Continued on next page.
No.A0654-3/12
LA75520KVA
Package Dimensions
unit : mm (typ)
3287
Pd max -- Ta
1400
Specified board : 76.1×114.3×1.6mm3
glass epoxy
6.5
1200
1000
24
13
When mounted on a board
800
600
400
12
1
0.5
0.22
0.15
(0.5)
200
0
–
20
0
20
40
60
70
80
Ambient temperature, Ta – °C
SANYO : SSOP24(225mil)
No.A0654-4/12
LA75520KVA
System changeover
a. SIF system SW
The SIF system can be changed over by setting A (pin 7) and B (pin 9) to GND and OPEN respectively.
FM DET
A
B
BG
I
DK
O
MN
O
De-emphasis
LEVEL
6dB
GND
GND
GND
OPEN
GND
75μs
50μs
50μs
50μs
0dB
OPEN
OPEN
O
0dB
OPEN
O
0dB
Note : Circles mean that the system indicated with a circle is selected
b. IF system SW
The IF frequency becomes 38.9MHz when pin 10 is open.
The IF frequency becomes 38.0MHz when pin 10 is set to GND.
The IF frequency becomes 39.5MHz when pin 10 is set to V
.
CC
c. Split/inter carrier SW
Inter-carrier is selected by setting the 1st SIF input (pin 13) to GND.
d. Reference frequency changeover SW
The reference frequency becomes 4.43MHz when pin 11 is OPEN.
The reference frequency becomes 4.0MHz when 270kΩ is connected between pin 11 and GND.
e. AFT mute level, trap point shift SW
By changing the pin 15 voltage, the potential and TRAP point at which AFT is muted can be set to either just or shift
(about +220kHz).
Pin 15 potential
to 4V
AFT mute potential
TRAP point shift
V
MIDDLE (V /2)
CC
Just
Shift
Just
Shift
CC
4V to 2.5V
2.5V to 1V
1V to GND
MIDDLE (V /2)
CC
HI (V
)
CC
CC
HI (V
)
* V =5V
CC
f. FM detector function not used
To stop FM detection VCO without using the SIF circuit, short-circuit pin 1 – GND with resistance of 1kΩ or less.
No.A0654-5/12
LA75520KVA
Pin Assignment
DE-EMPHASIS C
SIF AGC FILTER
FM PLL FILTER
1
2
3
4
5
6
7
8
9
24 AUDIO OUTPUT
23 FILTER CONTROL C
22 AUDIO BIAS FILTER
21 SIF CARRIER OUTPUT
20 RF AGC VR
V
CC
VIDEO OUTPUT
EQ FILTER
19 GND
LA75520KVA
SIF SYSTEM SW A
APC FILTER
18 VIF IN1
17 VIF IN2
SIF SYSTEM SW B
16 VIF AGC FILTER
15 AFT MUTE LEVEL
14 RF AGC OUTPUT
13 1st SIF INPUT
VIF FREQUENCY SW 10
REFERENCE CP INPUT 11
AFT OUTPUT 12
Top View
Block Diagram and Sample Application
VIF/SIF
INPUT
RF AGC
SOUND CARRIER
OUTPUT
SW10 VIF FREQUENCY
OUTPUT
V4
V3
V2
V1
39.5MHz
38.9MHz
38.0MHz
SW15
V3
AUDIO
OUTPUT
V2
V1
SAWF(P)
SAWF
(S)
SW13
SW11
OPEN
REFERENCE
4.43MHz
24
23
22
21
20
19
18
17
16
15
14
13
SHORT
4.0MHz
RF
AGC
SW13
OPEN
SYSTEM
SPLIT
VIF
AMP
1 stSIF
AMP
DE-
EMP
TRAP
SHORT
INTER
IF
AGC
AGC
VIDEO
DET
COM
SW15 ATF MUTE LEVEL B/G TRAP SHIFT
SPLI
INT
V4
V3
V2
V1
0
AMP
AMP
VCO
MIDDLE(V /2)
CC
+250kHz
0
HI(V
)
CC
OMD
PHASE
CTL
FM
DET
+250kHz
AFT
TRAP
SW
Pin7
Pin9 SIF SYSTEM
APC
Hi
Hi
Hi
Lo
Hi
B/G
I
SIF
MODE
CTRL
AMP
EQ
Lo
Lo
D/K
M
AMP
AGC
Lo
1
2
3
4
5
6
7
8
9
10
11
12
AFT OUTPUT
SW10
V3
V2
V1
V
(5V)
CC
SYSTEM SW
A
SYSTEM SW
B
VIF FREQ.
4.43/4MHz
VIDEO
OUTPUT
PCA01178
No.A0654-6/12
LA75520KVA
Input Impedance Test Circuit (VIF and first SIF input impedance)
Impedance analyzer
VIF IN
1st SIF IN
24
23
22
21
20
19
18
17
16
15
14
13
LA75520KVA
1
2
3
4
5
6
7
8
9
10
11
12
V
CC
No.A0654-7/12
LA75520KVA
Pin Functions
Pin No.
Pin name
Function
Equivalent Circuit
1
DE-EMPHASIS C
De-emphasis capacitor connection pin
This is used to switch the equivalent resistance
(5kΩ or 7.5kΩ) internally in the IC to select the time
constant.
4kΩ
This switching is linked to the SIF input switch.
To disable de-emphasis, disconnect the capacitor.
Connection of an external capacitance of 0.01μF
enables switching between 50 and 75μs.
When the FM detector circuit is not to be used, the
FM VCO can be stopped by connecting it to ground
with a resistor of 1kΩ or less.
1
0.01μF
2
SIF AGC FILTER
AGC filter pin for SIF carrier
0.01μF is recommended for C1.
2kΩ
2
C1
3
FM PLL FILTER
PLL filter pin of FM detector
This is used to configure an external lag lead filter.
Example: Connect 330pF in parallel with the filter on
the left (0.033μF + 3.3kΩ).
8kΩ
3
0.033μF
330pF
3.3kΩ
3
4
V
Power supply
CC
5
6
EQ OUT
Equalizer circuit. This circuit is used to correct the
video signal frequency characteristics.
EQ FILTER
Notes on equalizer amplifier design
• The equalizer amplifier is designed as a voltage
follower amplifier with a gain of about 0 dB. When
used for frequency characteristics correction, a
capacitor, inductor, and resistor must be
2kΩ
R1:1kΩ
5
connected in series between pin 6 and ground.
R1
Z
Equalizer amplifier gain AV =
+ 1
R1 is the IC internal resistance, and is 1kΩ. In the
application design, simply select Z to correspond
to the desired characteristics. However, since the
EQ amplifier gain will be maximum at the resonant
point defined by Z, care is required to assure that
distortion does not occur.
6
C
L
Z
R
Continued on next page.
No.A0654-8/12
LA75520KVA
Continued from preceding page.
Pin No.
Pin name
Function
Equivalent Circuit
7
9
SIF SYSTEM SW A
SIF system selection switch pins. Combining the
settings of these two pins supports four systems.
In M/N mode, the audio output level is increased by
6dB.
The internal trap is also linked to these switches.
The truth-values are as follows.
7
9
Pin7
H
Pin9
H
MODE
B/G
I
H
L
L
H
D/K
M/N
L
L
8
APC FILTER
PLL APC filter connection pin. The APC count is
switched internally in the IC.
The VCO is normally controlled by route A.
When unlocked and during weak field reception, the
VCO is controlled by route B and the loop gain is
increased.
from
APC
DET
A
1kΩ 1kΩ
For this APC filter we recommend a resistor of 51Ω
and capacitor of 0.47μF.
The buzz characteristics can be improved by
connecting a capacitor of 100pF or so between pins
5 and 8.
B
8
10
VIF FREQUENCY
SW
Switch pin for selecting the IF frequency
When this pin is open, 1/2V
CC
exists.
50kΩ
V
: 39.5MHz
10
CC
11kΩ
50kΩ
Open : 38.9MHz
GND : 38.0MHz
11
REFERENCE CP
INPUT
Reference signal input pin necessary for adjusting
the internal sound carrier trap, AFT, etc.
Either 4.0 or 4.43 MHz can be selected. Use the
configuration shown in example 1 when using
4.43MHz and configuration shown in example 2
when using 4.0MHz.
Since no oscillator can be configured simply by
connecting the X’tal resonator to pin 11, input the
reference signal from an external source without
fail.
Example 1
Example 2
11
11
1000pF
1000pF
270kΩ
11
4.43MHz
4.0MHz
Continued on next page.
No.A0654-9/12
LA75520KVA
Continued from preceding page.
Pin No.
12
Pin name
Function
Equivalent Circuit
AFT OUTPUT
AFT output pin. The AFT center voltage is
generated by an external bleeder resistor. The AFT
gain is increased by increasing the resistance of this
external bleeder resistor.
R
For the resistor we recommend a resistance equal
to or greater than 22kΩ.
For the filter C1 we recommend a capacitance of
0.1μF.
12
R
C1
13
1st SIF INPUT
First SIF input pin. A DC cut capacitor must be used
in the input circuit.
(a) If a SAW filter is used :
The first SIF sensitivity can be increased by
inserting an inductor between the SAW filter and the
IC to neutralize the SAW filter output capacitance
and the IC input capacitance.
2kΩ
(b) When used in an intercarrier system :
Connect this pin to ground.
13
14
14
RF AGC OUTPUT
RF AGC output pin. This output controls the tuner
RF AGC.
V
CC
This is the open collector output and a protective
200Ω resistor is inserted. Determine the external
bleeder resistor value in accordance with the
specifications of the tuner.
200Ω
15
AFT MUTE LEVEL
A switch pin for selecting the mute potential when
muting is applied to the AFT due to PLL unlock, etc.
At the same time, it is used to control the trap point
shift of the audio trap (in the B/G mode). When the
frequency characteristics of the video band are to
be made as flat as possible with the split input, the
trap can be shifted to the high range although the
attenuation of the sound carrier will drop. Therefore,
when used in combination with the SAW filter, verify
that the level is high enough before use.
66kΩ
15
Voltage
ATF MUTE
Voltage
TRAP SHIFT
34kΩ
V
to 4V
V
/2
0
CC
CC
CC
4V to 2.5V
2.5V to 1V
1V to GND
V
/2
+250kHz
0
V
CC
V
+250kHz
CC
* When V
CC
= 5 V
Continued on next page.
No.A0654-10/12
LA75520KVA
Continued from preceding page.
Pin No.
16
Pin name
IF AGC
Function
Equivalent Circuit
IF AGC filter connection pin.
The signal peak-detected by the built-in AGC
detector is converted to the AGC voltage at pin 16.
Additionally, a second AGC filter (a lag-lead filter)
used to create the dual time constants is provided
internally in the IC.
5kΩ
1kΩ
1kΩ
Use a 0.022μF capacitor as the external capacitor
(C1), and adjust the value according to the sag,
AGC speed, and other characteristics.
16
C1
17
18
VIF IN2
VIF IN1
VIF amplifier input pin
The input circuit is a balanced circuit, and the input
impedance is as follows:
R ≈ 1.0kΩ
17
18
19
20
GND
RF AGC VR
RF AGC volume connection pin
This pin sets the tuner RF AGC operating point.
Also, the FM output and the video output can both
be muted at the same time by connecting this pin to
ground.
20
21
SIF CARRIER OUT
First SIF output pin
This is an emitter-follower output with a 200Ω
resistor attached in series.
21
200Ω
22
AUDIO BIAS
FILTER
Connection pin for a filter used to hold the FM
detector output DC voltage fixed. Normally, a 1μF
electrolytic capacitor should be used. The
capacitance (CI) should be increased if the low
band (around 50Hz) frequency characteristics need
to be improved.
300Ω
300Ω 40kΩ
40kΩ
22
+
C1
Continued on next page.
No.A0654-11/12
LA75520KVA
Continued from preceding page.
Pin No.
23
Pin name
Function
Equivalent Circuit
FILTER CONTROL
C
Internal filter (trap) control pin
Connect a capacitor with a capacitance between
0.47 to 1μF, depending on the video S/N as well as
the levels of the AM and PM noise.
23
24
AUDIO OUTPUT
Sound output pin
Emitter follower output
24
1kΩ
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PS No.A0654-12/12
相关型号：
ENA0669B
Monolithic Linear IC For Automotive Applications Rail-to-Rail Dual Operational Amplifier
SANYO
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