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Ordering number : EN5710A
Monolithic Linear IC
LA70011, 70011M
Recording/Playback Amplifier for VHS VCRs
Overview
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.
Package Dimensions
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. * 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.
SANYO: DIP24S
unit: mm 3112-MFP24S
[LA70011M]
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum power supply voltage Maximum power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Ta 65C [LA70011] Ta 65C [LA70011M] 114.3 x 76.1 x 1.6 mm: glass epoxy Conditions
SANYO: MFP24S
Ratings 7.0 600 500 -10 to +65 -40 to +150
Unit V mW mW C C
Operating Conditions at Ta = 25C
Parameter Recommended power supply voltage Operating power supply voltage range Symbol VCC VCC op Conditions Ratings 5.0 4.8 to 5.5 Unit V V
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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 = 25C
Parameter Playback Mode Current drain SP-L CH1 Voltage gain SP-H CH2 EP-L CH3 EP-H CH4 Voltage gain difference Intermode gain difference CH1 CH2 CH3 CH4 CH1 CH2 CH3 CH4 CH1 CH2 CH3 CH4 CH1 CH2 CH3 CH4 ICCP GVP1 GVP2 GVP3 GVP4 GVP1 GVP2 GVP3 VNIN1 VNIN2 VNIN3 VNIN4 Vfp1 Vfp2 Vfp3 Vfp4 VHDP1 VHDP2 VHDP3 VHDP4 VOMP1 VOMP2 VOMP3 VOMP4 VCR1 Crosstalk SP VCR2 VCR3 Crosstalk EP VCR4 VODC1 VODC2 Output DC offset VODC3 VODC4 VODC5 VODC6 Envelope detector output pin voltage VENV VENVSP1 Envelope detector output pin voltage SP VENVSP2 VENVEP1 Envelope detector output pin voltage EP VENVEP2 Comparator output voltage SW-Tr on resistance during playback VCOMP1 VCOMP2 RPON17 RPON22 TR1-1 Trick threshold level TR1-2 TR2-1 TR2-2 GVP1 -- GVP2 GVP3 -- GVP4 GVP3 -- GVP1 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. Ratios of the output for VIN = 38 mVp-p and f = 7 MHz to the voltage gains GVP1, GVP2, GVP3, and GVP4. Ratio of the 8 MHz (secondary) component of the output to its 4 MHz (primary) component for VIN = 38 mVp-p and f = 4 MHz. Output level, for f = 1 MHz, at which the ratio of the 3 MHz (tertiary) component to the 1 MHz (primary) component is -30 dB. Ratio of the output for VIN = 38 mVp-p and f = 4 MHz to GVP1. 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. Ratio of the output for VIN = 38 mVp-p and f = 4 MHz to GVP4. CH1 -- CH2 CH3 -- CH4 CH1 -- CH3 CH2 -- CH4 CH1 -- CH4 CH2 -- CH3 T6 DC level with no signal input. T6 DC level at which T7A output level is 175 mVp-p for f = 4 MHz. T6 DC level at which T7A output level is 400 mVp-p for f = 4 MHz. T6 DC level at which T7A output level is 125 mVp-p for f = 4 MHz. T6 DC level at which T7A output level is 300 mVp-p for f = 4 MHz. T2 DC level for VIN = 38 mVp-p and f = 4 MHz. T2 DC level for VIN = 38 mVp-p and f = 4 MHz. DC difference for 1 and 2 mA current inputs. Normal Trick1 : *1 Trick1 Normal Normal Trick2 : *1 Trick2 Normal 3.2 1.2 0.0 1.2 4.5 0.0 2.0 4.0 2.0 4.0 08 2.5 4.5 2.5 4.5 0.4 4.8 4 6 5.0 2.8 0.8 2.8 1.3 3.0 5.0 3.0 5.0 0.7 V V V V V V V V V V V -100 0 +100 mV VIN = 38 mVp-p, f = 1 MHz Current flowing into pin 13 44 56 56 56 56 -1 -1 -1 53 59 59 59 59 0 0 0 60 62 62 62 62 +1 +1 +1 mA dB dB dB dB dB dB dB Symbol Conditions Ratings min typ max Unit
Converted input noise voltage
1.0
1.5
Vrms
Frequency characteristic
-2.5
0
dB
Secondary harmonic distortion
-40
-35
dB
Maximum output level
1.0
1.2
Vp-p
-40 -40 -40 -40
-35 -35 -35 -35
dB dB dB dB
Continued on next page.
No. 5710-2/11
LA70011, 70011M
Continued from preceding page.
Parameter Symbol HAP-1 HA playback threshold level HAP-2 SW30-1 SW30 threshold level Recording Mode Current drain REC AGC AMP output level Intermode gain difference ICCR VRSP VREP GVR VRSP/VREP VAGC1-SP Output level divided by VRSP or VREP for VAGC1-EP f = 4 MHz and VIN = 700 mVp-p. VAGC2-SP Output level divided by VRSP or VREP for VAGC2-EP f = 4 MHz and VIN = 100 mVp-p. VFRS VFRE VHDRS VHDRE VMOSP VMOEP VMRS VMRE VCYS VCYE HAR-1 HAR-2 REC MUTE threshold level MUTE-1 MUTE-2 REC PB threshold level PB-REC REC-PB Ratio of f = 7 MHz output to f = 1 MHz output for VIN = 400 mVp-p. *2 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. Output level, for f = 4 MHz, at which the secondary distortion is -35 dB. Output level divided by VRSP or VREP for f = 4 MHz and VIN = 400 mVp-p. Output ratio (4M 629k)/4M for VIN = 400 mVp-p and f = 4 MHz at T9A and VIN = 2.4 Vp-p and f = 629 kHz at T10A. SP EP : *1 EP SP MUTE OFF MUTE ON *1 MUTE ON MUTE OFF PB REC *1 REC PB 1.7 0.0 1.2 3.2 1.2 0.0 20 -1.0 -1 Current input at pin 13. Output level for VIN = 400 mVp-p and f = 4 MHz. 52 127 104 1.4 59 135 111 1.7 0.5 -0.5 0 +1 66 143 119 2.0 1.0 mA mVp-p mVp-p dB dB dB dB SW30-2 SP EP : *1 EPSP Lch Hch : *1 Hch Lch Conditions Ratings min 1.7 0.0 1.2 0.0 typ max 5.0 1.3 5.0 0.8 Unit V V V V
REC AGC AMP control characteristic
REC AGC AMP frequency characteristic
REC AGC AMP secondary primary distortion
-45
-40
dB
REC AGC AMP maximum output level REC AGC AMP muting attenuation
22 -45 -40
mApp dB
REC AGC AMP cross modulation relative level
-45
-40 5.0 1.3 2.8 5.0 5.0 0.8
dB V V V V V V
HA REC threshold level
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 TRICK-H NORMAL 1.0 V Trick2
PB
H: min. 4.5 V L: max. 0.7 V
2
COMP-OUT
EP > SP ENV High
REC
Open
EP 3 HA (EP/SP) SP 1.0 V
Hch 4 SW30 Lch 1.0 V
SYNC H 5 H-SYNC L 1.5 V
Continued on next page.
No. 5710-4/11
LA70011, 70011M
Continued from preceding page.
Pin Number Pin Name Standard DC Voltage (V) Equivalent Circuit Notes
PB
See relevant documents.
6
ENVDET-OUT
REC
0
PB
1.7
7
PB-OUT
REC
2.1
8 20
GND
PB
4.0
9
REC-Y-IN
REC
3.7
PB
4.0
10
REC-C-IN
REC
3.7
REC 3.0 V 11 REC/MUTE/PB REC MUTE 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
12
REC-CURRENTADJ2
REC
2.5 V
13
VCC
PB
5.0
14
REC-CURRENTADJ1
REC
4.5
PB
0
15
REC-AGC-FILT
REC
1.6
PB 16 19 21 24 SP L-IN SP H-IN EP L-IN EP H-IN REC
2.1
4.1
PB
2.1
17 22
REC SP OUT EP OUT
REC
4.1
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 18k resistor on pin 6
SP, with 18k 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 VCC (that is, approximately 2.5 V), and RO1 determines the recording current. Design values RO1 = 1.5 k = 16.0 mA (SP) (per channel) RO1 = 1.5 k =12.7 mA (EP) REC-CURRENT-ADJ2 Used Applying a DC control voltage between 1 and 4 V to pin 12 adjusts the figure determined by RO1 between -6.0 dB and +3.5 dB.
REC-CURRENT (mAp-p) design values
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
s 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. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: 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: 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. s 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

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