HA11440A, HA11442A
Color TV Picture IF System
Functions
•
•
•
•
•
•
•
PIF (picture intermediate frequency) amplifier
Quasi-synchronous detector
AFT with defeat terminal
Video amplifier
AGC (automatic gain control) circuit
Tuner AGC output
Noise canceller
Features
• Reduced 920-kHz beats and cross-color
• Improved differential gain (DG) and differential
phase (DP)
• Minimized external components
• Minimum level of forward AGC output voltage
adjusted by external resistors
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HA11440A, HA11442A
Absolute Maximum Ratings
(Ta = 25°C)
Item
Supply voltage
Mean level of maximum
output current at pin 1
Power dissipation (Ta = 65°C)
Operating temperature
Storage temperature
Symbol
V
CC
Rating
15
4
745
–20 to +65
–55 to +125
HA11440A, HA11442A
Unit
V
mA
mW
°C
°C
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I
O
P
T
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T
stg
T
opr
Electrical Characteristics
(Ta = 25°C, unless otherwise specified)
Item
Supply current 1
Supply current 2
Input sensitivity
Symbol
I
S1
Min
27.0
27.0
35
Typ
39.0
40.0
40
Max
51.3
51.3
45
Unit
mA
mA
dBµ
Test Conditions
V
1F
= 0
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V
in
The input voltage at
which the video
output goes down by
1 dB
The input voltage at
which the video
output voltage varies
by 5%
The frequency at
which the video
output voltage goes
down by 3 dB
m = 0.875
I
S2
V
1F
= 80 dBµ
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Maximum input voltage
V
in(max)
93
98
—
dBµ
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Video bandwidth
F
C
6.0
7.5
—
MHz
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Video output level
Sync tip voltage
Noise canceller starting
voltage
Differential gain
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V
NC
DG
1.20
—
1.50
8
1.80
12
V
%
m = 0.875, 5%
chroma added, DSB
signal inputted
m = 0.875, 5%
chroma added, DSB
signal inputted
Input signal
modulated with
square wave
Input signal
modulated with
square wave
V
SYNC
5.20
5.60
5.90
V
V
out
1.98
2.32
2.65
V
p-p
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Differential phase
DP
—
2.5
6
deg.
-––———————————————————————————————————————————————
AGC charging time
constant
AGC disharging time
constant
Vertical interval distortion
Minimum RF AGC voltage
τ
c
—
350
500
µs
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τ
d
—
14
28
ms
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3
V
TR(min)
0
0
1.0
V
V
1F
= 85 dBµ
V
VER
—
50
100
mV
p-p
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HA11440A, HA11442A
Electrical Characteristics
(cont)
Item
Maximum RF AGC voltage
Signal-to-noise ratio
Noise limited sensitivity
PIF input resistance
at pin 12
PIF input resistance
at pin 13
Symbol
V
TR(max)
Min
11.00
49
—
—
—
Typ
11.70
52
48
1.80
1.80
Max
11.95
—
52
—
—
HA11440A, HA11442A
Unit
V
dB
dB
kΩ
kΩ
Test Conditions
V
1F
= 65 dBµ
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SN
V
SN
V
1F
= 80 dBµ,
CW input signal
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R
i 12
R
i 13
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PIF input capacitance
C
i 12
—
3.0
—
pF
at pin 12
-
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PIF input capacitance
C
i 13
—
3.0
—
pF
at pin 13
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Video output resistance
AFT quiescent voltage
DC output voltage at AFT
AFT detection sensitivity
AFT hold range (high)
AFT hold range (low)
Maximum AFT voltage
Minimum AFT voltage
Time constant at AGC
lock prevention circuit
Gain attenuation
Thermal deviation of
delay point
Thermal deviation of
video output
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µ
F
AH
F
AL
V
A max
V
A min
τ
L
—
1.0
–3.5
11.00
0.05
110
0
–6
–5
180
1.8
–1.8
11.60
0.30
220
2
0
0
230
3.5
–1.0
11.95
1.00
440
5
6
5
kHz/10V
MHz
MHz
V
V
µs
dB
dB
%
RF stage gain of the
tuner attenuated
T
a
= –20°C to
+65°C
T
a
= –20°C to
+65°C
IF sweep signal
input
IF sweep signal
input
IF sweep signal
input
IF sweep signal
input
IF sweep signal
input
V
M2
6.45
6.52
6.59
V
Defeat on
V
M1
5.25
6.52
7.55
V
No input signal
R
out
—
30
—
Ω
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V
AT
DDL
T
DVO
T
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