View LA70020M_1262909.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Ordering number : EN5711A
Monolithic Linear IC
LA70020, 70020M
Recording/Playback Amplifier for VHS VCRs
Overview
The LA70020 and LA70020M are 6-head amplifiers adding hi-fi recording/playback amplifiers to the LA70011/LA70011M 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 3170-DIP36S 400mil
[LA70020]
Features
* Combining hi-fi and video amplifiers onto a single chip saves space on the circuit board. * 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. * The LA70020, encapsulated in DIP package, can be mounted at the right end of the LA70001 and LA70011 sockets. The LA70020M lacks this flexibility because its MFP package has a different pin pitch.
SANYO: DIP36S
unit: mm 3129-MFP36SD, MFP36SLF
[LA70020M]
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum power supply voltage Symbol VCC max Ta 65C [LA70020] Maximum power dissipation Pd max Ta 65C [LA70020M] 114.3 x 76.1 x 1.6 mm: glass epoxy Operating temperature Storage temperature Topr Tstg Conditions
SANYO: MFP36SD SANYO: MFP36SLF
Ratings 6.0 1000 1000 -10 to +65 -40 to +150 Unit V mW mW C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCCop Conditions Ratings 5.0 4.8 to 5.3 Unit V 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. 5711-1/13
LA70020, 70020M Electrical Characteristics at Ta = 25C (Video Circuits)
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 RPON24 RPON29 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 T12 DC level with no signal input. T12 DC level at which T13A output level is 150 mVp-p for f = 4 MHz. T12 DC level at which T13A output level is 400 mVp-p for f = 4 MHz. T12 DC level at which T13A 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. T8 DC level for VIN = 38 mVp-p and f = 4 MHz. T8 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 2.0 4.0 2.0 4.0 0.8 2.5 4.5 2.5 4.5 0.4 4.8 4 6 5.0 2.8 0.8 2.8 1.4 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 Current flowing into pin 13 VIN = 38 mVp-p, f = 4 MHz 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. 5711-2/13
LA70020, 70020M
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 T11 (H-SYNC), the pin from which the LA70020 takes its T9 (HA) control switch timing. * The resistance between pins 19 and 20 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 21) to fix the AGC amplifier gain. *3. Apply a DC voltage to the REC-CUR-Adj pin (pin 18) and adjust the output level.
No. 5711-3/13
LA70020, 70020M Electrical Characteristics at Ta = 25C (Hi-Fi Circuits)
Parameter Playback Mode Current drain Voltage gain Voltage gain difference Intermode gain difference CH1 CH2 HICCP HGVP1 HGVP2 HGVP HGEP HGVP1 -- HGVP2 Voltage gain difference between SP and EP modes. *1 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 = 20 mVp-p and f = 2 MHz to the voltage gains HGVP1 and HGVP2. -3 Current flowing into pin 36 VIN = 20 mVp-p, f = 1.5 MHz 20 72.5 72.5 -2 1.7 25 75.5 75.5 0 2.4 30 78.5 78.5 +2 3.1 mA dB dB dB dB Symbol Conditions Ratings min typ max Unit
Converted input noise voltage
CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2
HVNIN1 HVNIN2 HVfp1 HVfp2
0.8
1.2
Vrms
Frequency characteristic
-1
dB
Secondary harmonic distortion
HVHDP1 Ratio of the 3-MHz (secondary) component of HVHDP2 the output to its 1.5-MHz (primary) component for VIN = 20 mVp-p and f = 1.5 MHz. HVOMP1 Output level, for f = 1.5 MHz, at which the HVOMP2 ratio of the 4.5 MHz (secondary) component to the 1.5 MHz (primary) component is -30 dB. VHCR1 Ratio of the output for VIN = 20 mVp-p and f = 1.5 MHz to HGVP1. Ratio of the output for VIN = 20 mVp-p and f = 1.5 MHz to HGVP2. Ratio of the output for VIN = 20 mVp-p and f = 1.5 MHz to HGVP1. Ratio of the output for VIN = 20 mVp-p and f = 1.5 MHz to HGVP2. CH1 -- CH2 CH1 -- CH2 SP EP : *1 EP SP Lch Hch : *1 Hch Lch DC difference for 1 and 2 mA current inputs. -30 -50 1.7 0.0 1.2 0.0 2
-50
-40
dB
Maximum output level
Vp-p
-40 -40 -40 -40 0 0
-35 -35 -35 -35 +30 +50 5.0 1.3 5.0 0.8
dB dB dB dB mV mV V V V V mA mVp-p dB dB
Crosstalk SP VHCR2 VHCR3 Crosstalk EP VHCR4 Output DC offset SP mode Output DC offset EP mode HA threshold level VODC1 VODC2 HHAP-1 HHAP-2 HSW30-1 HSW30-2 HRPON HICCR HVOR HVAGC1 REC AGC AMP control characteristic VAGC2 REC AGC AMP muting attenuation REC AGC AMP cross modulation relative level for 0.4-MHz component REC AGC AMP cross modulation relative level for 0.9-MHz component REC MUTE threshold level HVMR HCMD04 HCMD09 HMUTE1 HMUTE2 REC PB threshold level Note : These are voltage application points. PB-REC REC-PB
SW30 threshold level SW-Tr on resistance during playback Recording Mode Current drain REC AGC AMP output level
4
6
Current input at pin 36. Output level for VIN = 180 mVp-p and f = 1.5 MHz. Output level divided by HVOR for f = 1.5 MHz and VIN = 360 mVp-p. Output level divided by HVOR for f = 1.5 MHz and VIN = 90 mVp-p. Output level divided by HVOR for f = 4 MHz and VIN = 180 mVp-p. 0.4-MHz component for T3A VIN = 90 mVp-p, f = 1.3 MHz + VIN = 270 mVp-p, f = 1.7 MHz. 0.9-MHz component for T3A VIN = 90 mVp-p, f = 1.3 MHz + VIN = 270 mVp-p, f = 1.7 MHz. MUTE OFF MUTE ON *1 MUTE ON MUTE OFF PB REC *1 REC PB
55 270
65 280 0.2
75 290 0.5
-0.5
-0.2 -40 -40 -40
dB dB dB V V V V
1.2 3.2 1.2 0.0
2.8 5.0 5.0 0.8
No. 5711-4/13
LA70020, 70020M Pin Descriptions
Pin Number Pin Name Standard DC Voltage (V) Equivalent Circuit Notes
PB
2.6
1
HiFi PB-FM-OUT
REC
4.0
2 31
HiFi GND
PB
0
3
HiFi REC-FM-IN
REC
3.0
PB
0
4
HiFi REC-AGC-Filt
REC
1.2
PB HiFi 5 REC-CURRENTADJ REC
0.7
1.5
SW30 MUTE ON HiFi 6 RF-SW (REC-MUTE) 1.0 Lch Hch OFF 3.2 V
Continued on next page.
No. 5711-5/13
LA70020, 70020M
Continued from preceding page.
Pin Number Pin Name Standard DC Voltage (V) Equivalent Circuit Notes
Trick1 3.0 V 7 TRICK-H NORMAL 1.0 V Trick2
PB
H: min. 4.5 V L: max. 0.7 V
8
COMP-OUT
EP > SP ENV High
REC
Open
EP 9 HA (EP/SP) SP 1.0 V
Hch 10 SW30 Lch 1.0 V
SYNC H 11 H-SYNC L 1.5 V
Continued on next page.
No. 5711-6/13
LA70020, 70020M
Continued from preceding page.
Pin Number Pin Name Standard DC Voltage (V) Equivalent Circuit Notes
PB
See relevant documents.
12
ENVDET-OUT
REC
0
PB
1.7
13
PB-OUT
REC
0
14 26
GND
PB
0
15
REC-Y-IN
REC
3.7
PB
0
16
REC-C-IN
REC
3.7
REC 3.0 V 17 REC/MUTE/PB REC MUTE 1.0 V PB
Continued on next page.
No. 5711-7/13
LA70020, 70020M
Continued from preceding page.
Pin Number Pin Name Standard DC Voltage (V) Equivalent Circuit Notes
PB
2.5 V
18
REC-CURRENTADJ2
REC
2.5 V
19
VCC
PB
5.0
20
REC-CURRENTADJ1
REC
4.5
PB
0
21
REC-AGC-FILT
REC
1.6
PB 22 25 27 30 SP L-IN SP H-IN EP L-IN EP H-IN REC
2.1
4.1
PB
2.1
23 28
REC SP OUT EP OUT
REC
4.1
Continued on next page.
No. 5711-8/13
LA70020, 70020M
Continued from preceding page.
Pin Number Pin Name Standard DC Voltage (V) Equivalent Circuit Notes
PB 24 29 34 REC PB FILT
0
2.5
PB HiFi PB-Lch-IN PB-Hch-IN REC
2.1
32 35
4.1
PB
2.1
33
HiFi REC-OUT
REC
4.1
HiFi 36 VCC 5.0
Usage Notes Control Pin Logic HiFi RF-SW, REC-MUTE : Pin 6 During playback Pin 6 level - DC < 1.0 V: Lch Pin 6 level - DC > 1.0 V: Hch During recording Pin 6 level - DC < 3.0 V: Mute off Pin 6 level - DC > 3.0 V: Mute on
No. 5711-9/13
LA70020, 70020M Switching Video Trick Mode with Pin 7 GND < pin 7 level - DC < 1.0 V: TRICK2 1.0 V < pin 7 level - DC < 3.0 V: NORMAL 3.0 V < pin 7 level - DC < 5.0 V: TRICK2
NORMAL Mode Two channels selected with pin 9 (EP/SP): ON Envelope comparator: OFF TRICK Modes All four channels: ON Envelope comparator: OFF Difference between TRICK1 and TRICK2 modes TRICK1 is a special playback mode using the following path Envelope comparator OUT (pin 8) Servo (microcontroller) Pin 3 (HA) HA-SW TRICK2 provides SP searching Envelope comparator OUT HA-SW HA-SW (EP/SP mode switch): Pin 9 GND < pin 9 level - DC < 1.5 V: SP mode 1.5 V < pin 9 level - DC < 5 V: EP mode
Video Synchronization of HA Switching Timing during Playback with H-SYNC Signal During playback, the LA70020's video circuits synchronize the HA-SW switching timing shown in the following figure with the H-SYNC signal from pin 11. (Other EP/SP switching takes place in real time.)
The hi-fi playback amplifier's gain is approximately 2.4 dB higher in EP mode than in SP mode. SP: 75.0 dB EP: 77.4 dB
No. 5711-10/13
LA70020, 70020M Comparator Output: Pin 8 EP envelope > SP envelope: High (min. 4.0 V) EP envelope < SP envelope: Low (max. 0.7 V) H-SYNC Input: Pin 11 Pin 11 level - DC > 1.5 V: H-SYNC interval
Video circuit operation only 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 17
Envelope Detector Characteristic: Pin 12 The LA70020 includes a built-in playback signal envelope detector circuit for use in automating tracking adjustment.
Envelope detector voltage characteristic Pin 12 level - detector DC level (V) EP, with 18-k resistor on pin 12
SP, with 18-k resistor on pin 12
Pin 12 level - playback output level (mVp-p)
No. 5711-11/13
LA70020, 70020M Video REC AMP Gain Control The LA70020 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 18 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 18 adjusts the figure determined by RO1 between -6.0 dB and +3.5 dB.
[01] REC-CURRENT (mAp-p) design values
Note: One possible circuit for applying this voltage is the following, which provides 9 modes between 1 and 4 V.
Hi-Fi REC AMP Gain Control The LA70020 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-ADJ RO1 determines the recording current. Design values RO1 = 1.0 k = 24.0 mA (SP) (per channel) RO1 = 1.5 k = 16.0 mA (EP)
No. 5711-12/13
LA70020, 70020M 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. 5711-13/13

▲Up To Search▲

Price & Availability of LA70020M

	To Download LA70020M Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .