LA70011 [SANYO]
Recording/Playback Amplifier for VHS VCRs; 录制/播放放大器VHS录像机
| 型号： | LA70011 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Recording/Playback Amplifier for VHS VCRs |
| 文件： | 总11页 (文件大小：137K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : EN5710A
Monolithic Linear IC
LA70011, 70011M
Recording/Playback Amplifier for VHS VCRs
Overview
Package Dimensions
The LA70011 and LA70011M are recording/playback
amplifiers for VHS VCR video signals. When used in
combination with the LA71000M and LA71500M Series
of video signal processing ICs, they permit Y/C recording
without current adjustment.
unit: mm
3067-DIP24S
[LA70011]
Features
• Connecting the playback amplifier input directly to the
head reduces the number of external elements required.
• The recording amplifiers use a fixed-current drive
configuration that yields stable recording characteristics
even under changing loads. They include built-in
automatic gain control circuits.
SANYO: DIP24S
• Using the same dimensions and pin assignments as the
LA70001 and LA70001M permits the use of the same
circuit boards as these earlier chips. The LA70011 can
also be mounted at the right end of an LA70020 socket.
unit: mm
3112-MFP24S
[LA70011M]
SANYO: MFP24S
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum power supply voltage
VCC max
7.0
600
Ta ≤ 65°C [LA70011]
mW
mW
°C
Maximum power dissipation
Pd max
Ta ≤ 65°C [LA70011M] 114.3 × 76.1 × 1.6 mm: glass epoxy
500
Operating temperature
Storage temperature
Topr
Tstg
–10 to +65
–40 to +150
°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
VCC
Conditions
Ratings
5.0
Unit
V
Recommended power supply voltage
Operating power supply voltage range
VCC op
4.8 to 5.5
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
22798RM (OT) No. 5710-1/11
LA70011, 70011M
Operating Characteristics at Ta = 25°C
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
Playback Mode
Current drain
ICCP
Current flowing into pin 13
44
53
59
59
59
59
0
60
mA
dB
dB
dB
dB
dB
dB
dB
SP-L CH1
SP-H CH2
EP-L CH3
EP-H CH4
GVP
GVP
GVP
GVP
1
2
3
4
56
56
56
56
–1
–1
–1
62
62
62
62
+1
+1
+1
Voltage gain
VIN = 38 mVp-p, f = 1 MHz
∆GVP
∆GVP
∆GVP
1
2
3
GVP1 — GVP
GVP3 — GVP
GVP3 — GVP
2
4
1
Voltage gain difference
0
Intermode gain difference
0
CH1
CH2
CH3
CH4
VNIN1
VNIN2
VNIN3
VNIN4
Ratio of the output from a 1.1 MHz low pass
filter to the output with no input under the
same conditions as those used for measuring
voltage gain.
Converted input noise voltage
1.0
0
1.5
µVrms
dB
CH1
CH2
CH3
CH4
∆Vfp1
∆Vfp2
∆Vfp3
∆Vfp4
Ratios of the output for VIN = 38 mVp-p and
f = 7 MHz to the voltage gains GVP1, GVP2,
GVP3, and GVP4.
–2.5
Frequency characteristic
Secondary harmonic distortion
Maximum output level
Crosstalk SP
CH1
CH2
CH3
CH4
∆VHDP
1
Ratio of the 8 MHz (secondary) component of
∆VHDP2 the output to its 4 MHz (primary) component
∆VHDP3 for VIN = 38 mVp-p and f = 4 MHz.
∆VHDP4
–40
1.2
–35
dB
CH1
CH2
CH3
CH4
∆VOMP
1
Output level, for f = 1 MHz, at which the ratio
∆VOMP2 of the 3 MHz (tertiary) component to the
∆VOMP3 1 MHz (primary) component is -30 dB.
∆VOMP4
1.0
Vp-p
Ratio of the output for VIN = 38 mVp-p and
f = 4 MHz to GVP1.
VCR
VCR
VCR
VCR
1
2
3
4
–40
–40
–40
–40
–35
–35
–35
–35
dB
dB
dB
dB
Ratio of the output for VIN = 38 mVp-p and
f = 4 MHz to GVP2.
Ratio of the output for VIN = 38 mVp-p and
f = 4 MHz to GVP3.
Crosstalk EP
Ratio of the output for VIN = 38 mVp-p and
f = 4 MHz to GVP4.
∆VODC
∆VODC
∆VODC
1
2
3
CH1 — CH2
CH3 — CH4
CH1 — CH3
–100
0
+100
mV
Output DC offset
∆VODC4 CH2 — CH4
∆VODC
∆VODC
VENV
5
CH1 — CH4
6
CH2 — CH3
Envelope detector output pin voltage
Envelope detector output pin voltage SP
T6 DC level with no signal input.
0.0
2.0
08
1.3
3.0
V
V
T6 DC level at which T7A output level is
175 mVp-p for f = 4 MHz.
VENVSP
VENVSP
VENVEP
VENVEP
1
2
1
2
2.5
T6 DC level at which T7A output level is
400 mVp-p for f = 4 MHz.
4.0
2.0
4.0
4.5
2.5
4.5
5.0
3.0
V
V
V
T6 DC level at which T7A output level is
125 mVp-p for f = 4 MHz.
Envelope detector output pin voltage EP
T6 DC level at which T7A output level is
300 mVp-p for f = 4 MHz.
5.0
0.7
V
COMP1 T2 DC level for VIN = 38 mVp-p and f = 4 MHz.
0.4
4.8
V
V
Comparator output voltage
VCOMP
RPON17
PON22
2
T2 DC level for VIN = 38 mVp-p and f = 4 MHz.
4.5
SW-Tr on resistance during playback
DC difference for 1 and 2 mA current inputs.
4
6
Ω
R
TR1-1
TR1-2
TR2-1
TR2-2
Normal → Trick1 : *1
Trick1 → Normal
3.2
1.2
0.0
1.2
5.0
2.8
0.8
2.8
V
V
V
V
Trick threshold level
Normal → Trick2 : *1
Trick2 → Normal
Continued on next page.
No. 5710-2/11
LA70011, 70011M
Continued from preceding page.
Ratings
typ
Parameter
HA playback threshold level
SW30 threshold level
Symbol
Conditions
Unit
min
1.7
max
5.0
HAP-1
HAP-2
SP → EP : *1
V
V
V
V
EPSP
0.0
1.2
0.0
1.3
5.0
0.8
SW30-1 Lch → Hch : *1
SW30-2 Hch → Lch
Recording Mode
Current drain
ICCR
Current input at pin 13.
52
59
66
mA
Output level for VIN = 400 mVp-p and
f = 4 MHz.
VRSP
127
135
143
mVp-p
REC AGC AMP output level
Intermode gain difference
VREP
104
1.4
111
1.7
119
2.0
mVp-p
dB
∆GVR
VRSP/VREP
∆VAGC1-SP Output level divided by VRSP or VREP for
∆VAGC1-EP f = 4 MHz and VIN = 700 mVp-p.
0.5
–0.5
0
1.0
dB
dB
dB
REC AGC AMP control characteristic
∆VAGC2-SP Output level divided by VRSP or VREP for
∆VAGC2-EP f = 4 MHz and VIN = 100 mVp-p.
–1.0
–1
∆VFRS
∆VFRE
Ratio of f = 7 MHz output to f = 1 MHz output
for VIN = 400 mVp-p. *2
REC AGC AMP frequency characteristic
+1
Ratio of the 8 MHz (secondary) component of
the output to its 4 MHz (primary) component
for VIN = 400 mVp-p and f = 4 MHz.
∆VHDRS
∆VHDRE
REC AGC AMP secondary primary distortion
–45
–40
dB
∆VMOSP Output level, for f = 4 MHz, at which the
∆VMOEP secondary distortion is –35 dB.
REC AGC AMP maximum output level
REC AGC AMP muting attenuation
20
22
mApp
dB
∆VMRS
∆VMRE
Output level divided by VRSP or VREP for
f = 4 MHz and VIN = 400 mVp-p.
–45
–40
–40
Output ratio (4M ± 629k)/4M for
VIN = 400 mVp-p and f = 4 MHz at T9A and
∆VCYS
∆VCYE
REC AGC AMP cross modulation relative level
–45
dB
V
IN = 2.4 Vp-p and f = 629 kHz at T10A.
HAR-1
HAR-2
SP → EP : *1
EP → SP
1.7
0.0
1.2
3.2
1.2
0.0
5.0
1.3
2.8
5.0
5.0
0.8
V
V
V
V
V
V
HA REC threshold level
REC MUTE threshold level
REC PB threshold level
MUTE-1 MUTE OFF → MUTE ON *1
MUTE-2 MUTE ON → MUTE OFF
PB-REC PB → REC *1
REC-PB REC → PB
Notes:* Before measuring the items under Playback Mode, input a 0 to 5.0 V trigger pulse to T5 (H-SYNC), the pin from which the LA70011 takes its T3
(HA) control switch timing.
* The resistance between pins 13 and 14 must be accurate to within 1.0%.
*1. These are voltage application points.
*2. Apply a DC voltage of approximately 1.8 V to the AGC wave detector filter pin (pin 15) to fix the AGC amplifier gain.
*3. Apply a DC voltage to the REC-CUR-Adj pin (pin 12) and adjust the output level.
No. 5710-3/11
LA70011, 70011M
Pin Descriptions
Pin Number
Pin Name
Standard DC Voltage (V)
Equivalent Circuit
Notes
Trick1
3.0 V
1.0 V
NORMAL
Trick2
1
TRICK-H
H: min. 4.5 V
L: max. 0.7 V
PB
2
COMP-OUT
EP > SP ENV High
REC
Open
EP
3
4
5
HA (EP/SP)
1.0 V
SP
Hch
SW30
1.0 V
Lch
SYNC
H
H-SYNC
1.5 V
L
Continued on next page.
No. 5710-4/11
LA70011, 70011M
Continued from preceding page.
Pin Number
Pin Name
Standard DC Voltage (V)
See relevant
Equivalent Circuit
Notes
PB
documents.
6
ENVDET-OUT
REC
0
PB
1.7
2.1
7
PB-OUT
REC
8
GND
20
PB
REC
PB
4.0
3.7
4.0
3.7
9
REC-Y-IN
10
REC-C-IN
REC
REC
3.0 V
REC
MUTE
11
REC/MUTE/PB
1.0 V
PB
Continued on next page.
No. 5710-5/11
LA70011, 70011M
Continued from preceding page.
Pin Number
Pin Name
Standard DC Voltage (V)
Equivalent Circuit
Notes
PB
2.5 V
REC-CURRENT-
ADJ2
12
REC
2.5 V
VCC
13
14
PB
REC
PB
5.0
4.5
0
REC-CURRENT-
ADJ1
15
REC-AGC-FILT
REC
1.6
2.1
4.1
2.1
4.1
PB
16
19
21
24
SP L-IN
SP H-IN
EP L-IN
EP H-IN
REC
PB
17
22
REC SP OUT
EP OUT
REC
Continued on next page.
No. 5710-6/11
LA70011, 70011M
Continued from preceding page.
Pin Number
Pin Name
Standard DC Voltage (V)
Equivalent Circuit
Notes
PB
0
18
23
PB FILT
REC
2.5
Usage Notes
Control Pin Logic
Switching Trick Mode with Pin 1
GND < pin 1 level - DC < 1.0 V: TRICK2
1.0 V < pin 1 level - DC < 3.0 V: NORMAL
3.0 V < pin 1 level - DC < 5.0 V: TRICK1
NORMAL Mode
Two channels selected with pin 3 (EP/SP): ON
Envelope comparator: OFF
TRICK1 and TRICK2 Modes
All four channels: ON
Envelope comparator: OFF
Difference between TRICK1 and TRICK2 modes (See the Block Diagram.)
TRICK1 is a special playback mode using the following path
Envelope comparator OUT (pin 2) → Servo (microcontroller) → Pin 3 (HA) → HA-SW
TRICK2 provides SP searching
Envelope comparator OUT → HA-SW
HA-SW (EP/SP mode switch): Pin 3
GND < pin 3 level - DC < 1.5 V: SP mode
1.5 V < pin 3 level - DC < 5 V: EP mode
No. 5710-7/11
LA70011, 70011M
Synchronization of HA Switching Timing during Playback with H-SYNC Signal
During playback, the LA70011’s video circuits synchronize the HA-SW switching timing shown in the following figure
with the H-SYNC signal from pin 5. (Other EP/SP switching takes place in real time.)
Comparator Output: Pin 2
EP envelope > SP envelope: High (min. 4.0 V)
EP envelope < SP envelope: Low (max. 0.7 V)
H-SYNC Input: Pin 5
Pin 5 level - DC > 1.5 V: H-SYNC interval
Playback:
— Determines timing of HA switching (EP/SP)
— Determines timing of special playback
Recording:
— Serves as gate pulse for REC-AGC-AMP SYNC unit
REC/REC-MUTE/PB Switching: Pin 11
GND < pin 11 level - DC < 1.0 V: PB mode
1.0 V < pin 11 level - DC < 3.0 V: REC mode, REC-MUTE
3.0 V < pin 11 level - DC < 5.0 V: REC mode
No. 5710-8/11
LA70011, 70011M
Envelope Detector Characteristic: Pin 6
The LA70011 includes a built-in playback signal envelope detector circuit for use in automating tracking adjustment.
Envelope detector voltage characteristic
Pin 6 level - detector
DC level (V)
EP, with 18kΩ resistor on pin 6
SP, with 18kΩ resistor on pin 6
Pin 7 level - playback output level (mVp-p)
REC AMP Gain Control
The LA70011 eliminates recording current adjustment by adding an automatic gain control circuit to the recording
amplifier. It is also possible to change the recording current with the following methods.
REC-CURRENT-ADJ2 Open
The internal bias forces the DC level at pin 12 to 1/2 V (that is, approximately 2.5 V), and R 1 determines the
CC
O
recording current.
Design values
R 1 = 1.5 kΩ = 16.0 mA (SP) (per channel)
O
R 1 = 1.5 kΩ =12.7 mA (EP)
O
REC-CURRENT-ADJ2 Used
Applying a DC control voltage between 1 and 4 V to pin 12 adjusts the figure determined by R 1 between –6.0 dB and
O
+3.5 dB.
No. 5710-9/11
LA70011, 70011M
Note: One possible circuit for applying this voltage is the following, which provides 9 modes between 1 and 4 V.
No. 5710-10/11
LA70011, 70011M
Block Diagram
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ 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 no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of February, 1998. Specifications and information herein are subject to
change without notice.
PS No. 5710-11/11
相关型号：
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