LA70020, 70020M
Continued from preceding page.
Parameter
HA playback threshold level
SW30 threshold level
Recording Mode
Symbol
Conditions
HAP-1
HAP-2
SW30-1
SW30-2
SP → EP : *1
EPSP
Lch → Hch : *1
Hch → Lch
min
1.7
0.0
1.2
0.0
Ratings
typ
Unit
max
5.0
V
1.3
V
5.0
V
0.8
V
Current drain
ICCR Current input at pin 13.
52
59
REC AGC AMP output level
Intermode gain difference
VRSP
VREP
∆GVR
Output level for VIN = 400 mVp-p and
f = 4 MHz.
VRSP/VREP
127
135
104
111
1.4
1.7
REC AGC AMP control characteristic
∆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.
0.5
–1.0
–0.5
REC AGC AMP frequency characteristic
∆VFRS Ratio of f = 7 MHz output to f = 1 MHz output
∆VFRE for VIN = 400 mVp-p. *2
–1
0
∆VHDRS Ratio of the 8 MHz (secondary) component of
REC AGC AMP secondary primary distortion ∆VHDRE the output to its 4-MHz (primary) component
–45
for VIN = 400 mVp-p and f = 4 MHz.
REC AGC AMP maximum output level
∆VMOSP Output level, for f = 4 MHz, at which the
∆VMOEP secondary distortion is –35 dB.
20
22
REC AGC AMP muting attenuation
∆VMRS Output level divided by VRSP or VREP for
∆VMRE f = 4 MHz and VIN = 400 mVp-p.
–45
REC AGC AMP cross modulation relative level
∆VCYS
∆VCYE
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.
–45
HA REC threshold level
HAR-1 SP → EP : *1
1.7
HAR-2 EP → SP
0.0
REC MUTE threshold level
MUTE-1 MUTE OFF → MUTE ON *1
1.2
MUTE-2 MUTE ON → MUTE OFF
3.2
REC PB threshold level
PB-REC PB → REC *1
1.2
REC-PB REC → PB
0.0
66 mA
143 mVp-p
119 mVp-p
2.0
dB
1.0
dB
dB
+1
dB
–40
dB
mApp
–40
dB
–40
dB
5.0
V
1.3
V
2.8
V
5.0
V
5.0
V
0.8
V
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